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CULLEN/FROST BANKERS, INC. - Quarter Report: 2019 June (Form 10-Q)

Table of Contents

United States
Securities and Exchange Commission
Washington, D.C. 20549
Form 10-Q
Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the quarterly period ended: June 30, 2019
Or
Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the transition period from ________________ to ________________
Commission file number: 001-13221
Cullen/Frost Bankers, Inc.
(Exact name of registrant as specified in its charter)
Texas
 
74-1751768
(State or other jurisdiction of incorporation or organization)
 
(I.R.S. Employer Identification No.)
 
 
 
111 W. Houston Street,
San Antonio,
Texas
 
78205
(Address of principal executive offices)
 
(Zip code)
 
(210)
220-4011
 
(Registrant's telephone number, including area code)
 
100 W. Houston Street,
San Antonio,
Texas
78205
 
(Former name, former address and former fiscal year, if changed since last report
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
 
Trading Symbol(s)
 
Name of each exchange on
which registered
 
 
 
 
 
Common Stock, $.01 Par Value
 
CFR
 
New York Stock Exchange
5.375% Non-Cumulative Perpetual Preferred Stock, Series A
 
CFR.PRA
 
New York Stock Exchange
Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes      No  
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes      No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
 
Large accelerated filer
Accelerated filer
 
Non-accelerated filer
Smaller reporting company
 
 
 
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes      No  
As of July 22, 2019 there were 62,655,881 shares of the registrant’s Common Stock, $.01 par value, outstanding.


Table of Contents

Cullen/Frost Bankers, Inc.
Quarterly Report on Form 10-Q
June 30, 2019
Table of Contents
 
Page
Item 1.
 
 
 
 
 
 
 
Item 2.
Management's Discussion and Analysis of Financial Condition and Results of Operations
Item 3.
Item 4.
 
 
 
 
Item 1.
Item 1A.
Item 2.
Item 3.
Item 4.
Item 5.
Item 6.
 
 
 

2

Table of Contents

Part I. Financial Information
Item 1. Financial Statements (Unaudited)
Cullen/Frost Bankers, Inc.
Consolidated Balance Sheets
(Dollars in thousands, except per share amounts)
 
June 30,
2019
 
December 31,
2018
Assets:
 
 
 
Cash and due from banks
$
526,830

 
$
678,791

Interest-bearing deposits
948,862

 
2,641,971

Federal funds sold and resell agreements
469,718

 
635,017

Total cash and cash equivalents
1,945,410

 
3,955,779

Securities held to maturity, at amortized cost
1,035,299

 
1,106,057

Securities available for sale, at estimated fair value
12,279,513

 
11,387,321

Trading account securities
25,482

 
24,086

Loans, net of unearned discounts
14,459,149

 
14,099,733

Less: Allowance for loan losses
(134,929
)
 
(132,132
)
Net loans
14,324,220

 
13,967,601

Premises and equipment, net
915,497

 
552,330

Goodwill
654,952

 
654,952

Other intangible assets, net
3,019

 
3,649

Cash surrender value of life insurance policies
185,303

 
183,473

Accrued interest receivable and other assets
450,168

 
457,718

Total assets
$
31,818,863

 
$
32,292,966

 
 
 
 
Liabilities:
 
 
 
Deposits:
 
 
 
Non-interest-bearing demand deposits
$
10,136,437

 
$
10,997,494

Interest-bearing deposits
15,848,586

 
16,151,710

Total deposits
25,985,023

 
27,149,204

Federal funds purchased and repurchase agreements
1,319,507

 
1,367,548

Junior subordinated deferrable interest debentures, net of unamortized issuance costs
136,270

 
136,242

Subordinated notes, net of unamortized issuance costs
98,786

 
98,708

Accrued interest payable and other liabilities
537,970

 
172,347

Total liabilities
28,077,556

 
28,924,049

 
 
 
 
Shareholders’ Equity:
 
 
 
Preferred stock, par value $0.01 per share; 10,000,000 shares authorized; 6,000,000 Series A shares ($25 liquidation preference) issued at June 30, 2019 and December 31, 2018
144,486

 
144,486

Common stock, par value $0.01 per share; 210,000,000 shares authorized; 64,236,306 shares issued at June 30, 2019 and December 31, 2018
642

 
642

Additional paid-in capital
975,322

 
967,304

Retained earnings
2,558,296

 
2,440,002

Accumulated other comprehensive income (loss), net of tax
219,438

 
(63,600
)
Treasury stock, at cost; 1,598,222 shares at June 30, 2019 and 1,250,464 shares at December 31, 2018
(156,877
)
 
(119,917
)
Total shareholders’ equity
3,741,307

 
3,368,917

Total liabilities and shareholders’ equity
$
31,818,863

 
$
32,292,966

See Notes to Consolidated Financial Statements.


3

Table of Contents

Cullen/Frost Bankers, Inc.
Consolidated Statements of Income
(Dollars in thousands, except per share amounts)
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Interest income:
 
 
 
 
 
 
 
Loans, including fees
$
189,848

 
$
164,133

 
$
375,120

 
$
315,335

Securities:
 
 
 
 
 
 
 
Taxable
30,324

 
21,188

 
55,003

 
41,746

Tax-exempt
58,596

 
57,298

 
117,739

 
114,009

Interest-bearing deposits
7,828

 
13,917

 
18,467

 
28,011

Federal funds sold and resell agreements
1,541

 
1,415

 
3,129

 
2,176

Total interest income
288,137

 
257,951

 
569,458

 
501,277

Interest expense:
 
 
 
 
 
 
 
Deposits
26,844

 
17,575

 
54,018

 
28,213

Federal funds purchased and repurchase agreements
5,220

 
631

 
10,236

 
1,265

Junior subordinated deferrable interest debentures
1,478

 
1,311

 
2,976

 
2,453

Other long-term borrowings
1,164

 
1,164

 
2,328

 
2,328

Total interest expense
34,706

 
20,681

 
69,558

 
34,259

Net interest income
253,431

 
237,270

 
499,900

 
467,018

Provision for loan losses
6,400

 
8,251

 
17,403

 
15,196

Net interest income after provision for loan losses
247,031

 
229,019

 
482,497

 
451,822

Non-interest income:
 
 
 
 
 
 
 
Trust and investment management fees
30,448

 
29,121

 
62,145

 
58,708

Service charges on deposit accounts
21,798

 
21,142

 
42,588

 
41,985

Insurance commissions and fees
10,118

 
10,556

 
28,524

 
26,536

Interchange and debit card transaction fees
3,868

 
3,446

 
7,148

 
6,604

Other charges, commissions and fees
8,933

 
9,273

 
17,995

 
18,280

Net gain (loss) on securities transactions
169

 
(60
)
 
169

 
(79
)
Other
7,304

 
11,588

 
20,854

 
24,477

Total non-interest income
82,638

 
85,066

 
179,423

 
176,511

Non-interest expense:
 
 
 
 
 
 
 
Salaries and wages
90,790

 
85,204

 
183,266

 
171,887

Employee benefits
20,051

 
17,907

 
43,577

 
39,902

Net occupancy
21,133

 
19,455

 
40,400

 
39,195

Technology, furniture and equipment
22,157

 
20,459

 
43,821

 
40,138

Deposit insurance
2,453

 
4,605

 
5,261

 
9,484

Intangible amortization
305

 
369

 
630

 
757

Other
46,320

 
40,909

 
88,054

 
84,156

Total non-interest expense
203,209

 
188,908

 
405,009

 
385,519

Income before income taxes
126,460

 
125,177

 
256,911

 
242,814

Income taxes
14,874

 
13,836

 
28,829

 
24,993

Net income
111,586

 
111,341

 
228,082

 
217,821

Preferred stock dividends
2,015

 
2,015

 
4,031

 
4,031

Net income available to common shareholders
$
109,571

 
$
109,326

 
$
224,051

 
$
213,790

 
 
 
 
 
 
 
 
Earnings per common share:
 
 
 
 
 
 
 
Basic
$
1.73

 
$
1.70

 
$
3.53

 
$
3.33

Diluted
1.72

 
1.68

 
3.51

 
3.30

See Notes to Consolidated Financial Statements.

4

Table of Contents

Cullen/Frost Bankers, Inc.
Consolidated Statements of Comprehensive Income (Loss)
(Dollars in thousands)
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Net income
$
111,586

 
$
111,341

 
$
228,082

 
$
217,821

Other comprehensive income (loss), before tax:
 
 
 
 
 
 
 
Securities available for sale and transferred securities:
 
 
 
 
 
 
 
Change in net unrealized gain/loss during the period
158,140

 
(11,884
)
 
356,286

 
(190,788
)
Change in net unrealized gain on securities transferred to held to maturity
(308
)
 
(2,041
)
 
(652
)
 
(4,660
)
Reclassification adjustment for net (gains) losses included in net income
(169
)
 
60

 
(169
)
 
79

Total securities available for sale and transferred securities
157,663

 
(13,865
)
 
355,465

 
(195,369
)
Defined-benefit post-retirement benefit plans:
 
 
 
 
 
 
 
Change in the net actuarial gain/loss

 

 

 

Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)
1,406

 
1,251

 
2,812

 
2,501

Total defined-benefit post-retirement benefit plans
1,406

 
1,251

 
2,812

 
2,501

Other comprehensive income (loss), before tax
159,069

 
(12,614
)
 
358,277

 
(192,868
)
Deferred tax expense (benefit)
33,405

 
(2,649
)
 
75,239

 
(40,502
)
Other comprehensive income (loss), net of tax
125,664

 
(9,965
)
 
283,038

 
(152,366
)
Comprehensive income (loss)
$
237,250

 
$
101,376

 
$
511,120

 
$
65,455

See Notes to Consolidated Financial Statements.

5

Table of Contents

Cullen/Frost Bankers, Inc.
Consolidated Statements of Changes in Shareholders’ Equity
(Dollars in thousands, except per share amounts)
 
Preferred
Stock
 
Common
Stock
 
Additional
Paid-In
Capital
 
Retained
Earnings
 
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
 
Treasury
Stock
 
Total
Three months ended:
 
 
 
 
 
 
 
 
 
 
 
 
 
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
$
144,486

 
$
642

 
$
970,958

 
$
2,495,268

 
$
93,774

 
$
(111,550
)
 
$
3,593,578

Net income

 

 

 
111,586

 

 

 
111,586

Other comprehensive loss, net of tax

 

 

 

 
125,664

 

 
125,664

Stock option exercises/stock unit conversions (53,035 shares)

 

 

 
(1,717
)
 

 
4,673

 
2,956

Stock-based compensation expense recognized in earnings

 

 
4,364

 

 

 

 
4,364

Purchase of treasury stock (496,307 shares)

 

 

 

 

 
(50,000
)
 
(50,000
)
Cash dividends – preferred stock (approximately $0.33 per share)

 

 

 
(2,015
)
 

 

 
(2,015
)
Cash dividends - common stock ($0.71 per share)

 

 

 
(44,826
)
 

 

 
(44,826
)
Balance at end of period
$
144,486

 
$
642

 
$
975,322

 
$
2,558,296

 
$
219,438

 
$
(156,877
)
 
$
3,741,307

 
 
 
 
 
 
 
 
 
 
 
 
 
 
June 30, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
$
144,486

 
$
642

 
$
956,536

 
$
2,234,301

 
$
(53,354
)
 
$
(39,181
)
 
$
3,243,430

Net income

 

 

 
111,341

 

 

 
111,341

Other comprehensive income, net of tax

 

 

 

 
(9,965
)
 

 
(9,965
)
Stock option exercises/stock unit conversions (110,489 shares)

 

 

 
(3,451
)
 

 
9,734

 
6,283

Stock-based compensation expense recognized in earnings

 

 
3,585

 

 

 

 
3,585

Purchase of treasury stock (601 shares)

 

 

 

 

 
(70
)
 
(70
)
Cash dividends – preferred stock (approximately $0.33 per share)

 

 

 
(2,015
)
 

 

 
(2,015
)
Cash dividends – common stock ($0.67 per share)

 

 

 
(43,077
)
 

 

 
(43,077
)
Balance at end of period
$
144,486

 
$
642

 
$
960,121

 
$
2,297,099

 
$
(63,319
)
 
$
(29,517
)
 
$
3,309,512


See accompanying Notes to Consolidated Financial Statements

6

Table of Contents

Cullen/Frost Bankers, Inc.
Consolidated Statements of Changes in Shareholders’ Equity (continued)
(Dollars in thousands, except per share amounts)
 
Preferred
Stock
 
Common
Stock
 
Additional
Paid-In
Capital
 
Retained
Earnings
 
Accumulated
Other
Comprehensive
Income (Loss),
Net of Tax
 
Treasury
Stock
 
Total
Six months ended:
 
 
 
 
 
 
 
 
 
 
 
 
 
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
$
144,486

 
$
642

 
$
967,304

 
$
2,440,002

 
$
(63,600
)
 
$
(119,917
)
 
$
3,368,917

Cumulative effect of accounting change

 

 

 
(12,611
)
 

 

 
(12,611
)
Total shareholders' equity at beginning of period, as adjusted
144,486

 
642

 
967,304

 
2,427,391

 
(63,600
)
 
(119,917
)
 
3,356,306

Net income

 

 

 
228,082

 

 

 
228,082

Other comprehensive income, net of tax

 

 

 

 
283,038

 

 
283,038

Stock option exercises/stock unit conversions (153,900 shares)

 

 

 
(5,718
)
 

 
13,559

 
7,841

Stock-based compensation expense recognized in earnings

 

 
8,018

 

 

 

 
8,018

Purchase of treasury stock (501,658 shares)

 

 

 

 

 
(50,519
)
 
(50,519
)
Cash dividends – preferred stock (approximately $0.67 per share)

 

 

 
(4,031
)
 

 

 
(4,031
)
Cash dividends – common stock ($1.38 per share)

 

 

 
(87,428
)
 

 

 
(87,428
)
Balance at end of period
$
144,486

 
$
642

 
$
975,322

 
$
2,558,296

 
$
219,438

 
$
(156,877
)
 
$
3,741,307

 
 
 
 
 
 
 
 
 
 
 
 
 
 
June 30, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
$
144,486

 
$
642

 
$
953,361

 
$
2,187,069

 
$
79,512

 
$
(67,207
)
 
$
3,297,863

Cumulative effect of accounting change

 

 

 
(2,285
)
 

 

 
(2,285
)
Total shareholders' equity at beginning of period, as adjusted
144,486

 
642

 
953,361

 
2,184,784

 
79,512

 
(67,207
)
 
3,295,578

Net income

 

 

 
217,821

 

 

 
217,821

Other comprehensive loss, net of tax

 

 

 

 
(152,366
)
 

 
(152,366
)
Reclassification of certain income tax effects related to the change in the U.S. statutory federal income tax rate under the Tax Cuts and Jobs Act

 

 

 
(9,535
)
 
9,535

 

 

Stock option exercises/stock unit conversions (428,599 shares)

 

 

 
(12,312
)
 

 
37,760

 
25,448

Stock-based compensation expense recognized in earnings

 

 
6,760

 

 

 

 
6,760

Purchase of treasury stock (601 shares)

 

 

 

 

 
(70
)
 
(70
)
Cash dividends – preferred stock (approximately $0.67 per share)

 

 

 
(4,031
)
 

 

 
(4,031
)
Cash dividends – common stock ($1.24 per share)

 

 

 
(79,628
)
 

 

 
(79,628
)
Balance at end of period
$
144,486

 
$
642

 
$
960,121

 
$
2,297,099

 
$
(63,319
)
 
$
(29,517
)
 
$
3,309,512


See accompanying Notes to Consolidated Financial Statements


7

Table of Contents

Cullen/Frost Bankers, Inc.
Consolidated Statements of Cash Flows
(Dollars in thousands)
 
Six Months Ended 
 June 30,
 
2019
 
2018
Operating Activities:
 
 
 
Net income
$
228,082

 
$
217,821

Adjustments to reconcile net income to net cash from operating activities:
 
 
 
Provision for loan losses
17,403

 
15,196

Deferred tax expense (benefit)
(675
)
 
22,886

Accretion of loan discounts
(7,325
)
 
(6,904
)
Securities premium amortization (discount accretion), net
56,726

 
48,936

Net (gain) loss on securities transactions
(169
)
 
79

Depreciation and amortization
25,705

 
24,581

Net (gain) loss on sale/write-down of assets/foreclosed assets
(5,135
)
 
(5,453
)
Stock-based compensation
8,018

 
6,760

Net tax benefit from stock-based compensation
1,131

 
3,160

Earnings on life insurance policies
(1,830
)
 
(1,663
)
Net change in:
 
 
 
Trading account securities
(1,068
)
 
(2,263
)
Lease right-of-use assets
9,167

 

Accrued interest receivable and other assets
(18,107
)
 
(42,959
)
Accrued interest payable and other liabilities
(20,008
)
 
(26,176
)
Net cash from operating activities
291,915

 
254,001

 
 
 
 
Investing Activities:
 
 
 
Securities held to maturity:
 
 
 
Purchases

 
(1,500
)
Maturities, calls and principal repayments
60,077

 
183,140

Securities available for sale:
 
 
 
Purchases
(4,555,448
)
 
(11,453,662
)
Sales
3,291,529

 
10,890,388

Maturities, calls and principal repayments
708,273

 
108,316

Proceeds from sale of loans
24,036

 
18,918

Net change in loans
(390,452
)
 
(601,101
)
Benefits received on life insurance policies

 
384

Proceeds from sales of premises and equipment
4,677

 
12,844

Purchases of premises and equipment
(98,622
)
 
(45,766
)
Proceeds from sales of repossessed properties
5

 
986

Net cash from investing activities
(955,925
)
 
(887,053
)
 
 
 
 
Financing Activities:
 
 
 
Net change in deposits
(1,164,181
)
 
(875,890
)
Net change in short-term borrowings
(48,041
)
 
(170,354
)
Proceeds from stock option exercises
7,841

 
25,448

Purchase of treasury stock
(50,519
)
 
(70
)
Cash dividends paid on preferred stock
(4,031
)
 
(4,031
)
Cash dividends paid on common stock
(87,428
)
 
(79,628
)
Net cash from financing activities
(1,346,359
)
 
(1,104,525
)
 
 
 
 
Net change in cash and cash equivalents
(2,010,369
)
 
(1,737,577
)
Cash and cash equivalents at beginning of period
3,955,779

 
5,053,047

Cash and cash equivalents at end of period
$
1,945,410

 
$
3,315,470


See Notes to Consolidated Financial Statements.

8

Table of Contents

Notes to Consolidated Financial Statements
(Table amounts in thousands, except for share and per share amounts)
Note 1 - Significant Accounting Policies
Nature of Operations. Cullen/Frost Bankers, Inc. (“Cullen/Frost”) is a financial holding company and a bank holding company headquartered in San Antonio, Texas that provides, through its subsidiaries, a broad array of products and services throughout numerous Texas markets. The terms “Cullen/Frost,” “the Corporation,” “we,” “us” and “our” mean Cullen/Frost Bankers, Inc. and its subsidiaries, when appropriate. In addition to general commercial and consumer banking, other products and services offered include trust and investment management, insurance, brokerage, mutual funds, leasing, treasury management, capital markets advisory and item processing.
Basis of Presentation. The consolidated financial statements in this Quarterly Report on Form 10-Q include the accounts of Cullen/Frost and all other entities in which Cullen/Frost has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. The accounting and financial reporting policies we follow conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry.
The consolidated financial statements in this Quarterly Report on Form 10-Q have not been audited by an independent registered public accounting firm, but in the opinion of management, reflect all adjustments necessary for a fair presentation of our financial position and results of operations. All such adjustments were of a normal and recurring nature. The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and with the instructions to Form 10-Q adopted by the Securities and Exchange Commission (“SEC”). Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements and should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2018, included in our Annual Report on Form 10-K filed with the SEC on February 6, 2019 (the “2018 Form 10-K”). Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.
Use of Estimates. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments and the status of contingencies are particularly subject to change.
Cash Flow Reporting. Additional cash flow information was as follows:
 
Six Months Ended 
 June 30,
 
2019
 
2018
Cash paid for interest
$
66,657

 
$
31,962

Cash paid for income taxes
31,858

 
3,888

Significant non-cash transactions:
 
 
 
Unsettled purchases/sales of securities
39,896

 
2,186

Loans foreclosed and transferred to other real estate owned and foreclosed assets
616

 
2,656

Loans to facilitate the sale of other real estate owned
847

 

Right-of-use lease assets obtained in exchange for lessee operating lease liabilities
295,109

 


Accounting Changes, Reclassifications and Restatements. Certain items in prior financial statements have been reclassified to conform to the current presentation. In addition, as of January 1, 2019, we adopted certain accounting standard updates related to accounting for leases (Topic 842 - Leases), primarily Accounting Standards Update (“ASU”) 2016-02 and subsequent updates. Among other things, these updates require lessees to recognize a lease liability, measured on a discounted basis, related to the lessee's obligation to make lease payments arising under a lease contract; and a right-of-use asset related to the lessee’s right to use, or control the use of, a specified asset for the lease term. The updates did not significantly change lease accounting requirements applicable to lessors and did not significantly impact our financial statements in relation to contracts whereby we act as a lessor. We adopted the updates using a modified-retrospective transition approach and recognized right-of-use lease assets and related lease liabilities totaling $170.5 million and $174.4 million, respectively, as of January 1, 2019. We elected to apply certain practical adoption expedients provided under the updates whereby we did not reassess (i) whether any expired or existing contracts are or contain leases, (ii) the lease classification for any expired or existing leases and (iii) initial direct costs for any existing leases. We did not elect to apply the recognition requirements of the updates to any short-term leases (as discussed below). As of June 30, 2019, right-of-use lease assets and related lease liabilities totaled $284.5 million and $291.7 million, respectively. During the

9

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second quarter of 2019, we recognized a right-of-use asset totaling $121.7 million and a related lease liability totaling $121.7 million in connection with the commencement of the lease of our new corporate headquarters facility in downtown San Antonio. See Note 6 - Commitments and Contingencies.
We lease certain office facilities and office equipment under operating leases. We also own certain office facilities which we lease to outside parties under operating lessor leases; however, such leases are not significant. We do not apply the recognition requirements of Topic 842 - Leases to short-term operating leases. A short-term operating lease has an original term of 12 months or less and does not have a purchase option that is likely to be exercised. For non-short-term operating leases, we recognized lease right-of-use assets and related lease liabilities on our balance sheet upon commencement of the lease in accordance with Topic 842 - Leases. In recognizing lease right-of-use assets and related lease liabilities, we account for lease and non-lease components (such as taxes, insurance, and common area maintenance costs) separately as such amounts are generally readily determinable under our lease contracts. Lease payments over the expected term are discounted using our incremental borrowing rate referenced to the Federal Home Loan Bank Secure Connect advance rates for borrowings of similar term. We also consider renewal and termination options in the determination of the term of the lease. If it is reasonably certain that a renewal or termination option will be exercised, the effects of such options are included in the determination of the expected lease term. Generally, we cannot be reasonably certain about whether or not we will renew a lease until such time the lease is within the last two years of the existing lease term. However, renewal options related to our regional headquarter facilities or operations centers are evaluated on a case-by-case basis, typically in advance of such time frame. When we are reasonably certain that a renewal option will be exercised, we measure/remeasure the right-of-use asset and related lease liability using the lease payments specified for the renewal period or, if such amounts are unspecified, we generally assume an increase (evaluated on a case-by-case basis in light of prevailing market conditions) in the lease payment over the final period of the existing lease term.
We also adopted ASU 2017-08 “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) - Premium Amortization on Purchased Callable Debt Securities” as of January 1, 2019. ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium to require such premiums to be amortized to the earliest call date unless applicable guidance related to certain pools of securities is applied to consider estimated prepayments. Under prior guidance, entities were generally required to amortize premiums on individual, non-pooled callable debt securities as a yield adjustment over the contractual life of the security. ASU 2017-08 does not change the accounting for callable debt securities held at a discount. Upon adoption, using a modified retrospective transition adoption approach, we recognized a cumulative effect reduction to retained earnings totaling$12.6 million. We expect premium amortization expense for 2019 will be approximately $5.2 million higher than what would have been the case had we continued to amortize the affected securities to their respective maturity dates.
Note 2 - Securities
Securities. A summary of the amortized cost and estimated fair value of securities, excluding trading securities, is presented below.
 
June 30, 2019
 
December 31, 2018
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 
Estimated
Fair Value
Held to Maturity
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage-backed securities
$
2,554

 
$
13

 
$
4

 
$
2,563

 
$
2,737

 
$
8

 
$
85

 
$
2,660

States and political subdivisions
1,031,245

 
26,670

 

 
1,057,915

 
1,101,820

 
11,525

 
552

 
1,112,793

Other
1,500

 

 

 
1,500

 
1,500

 

 

 
1,500

Total
$
1,035,299

 
$
26,683

 
$
4

 
$
1,061,978

 
$
1,106,057

 
$
11,533

 
$
637

 
$
1,116,953

Available for Sale
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury
$
2,907,476

 
$
18,187

 
$
4,943

 
$
2,920,720

 
$
3,455,417

 
$
1,772

 
$
29,500

 
$
3,427,689

Residential mortgage-backed securities
2,212,761

 
36,354

 
1,403

 
2,247,712

 
823,208

 
13,079

 
6,547

 
829,740

States and political subdivisions
6,783,505

 
287,668

 
2,872

 
7,068,301

 
7,089,132

 
70,760

 
72,690

 
7,087,202

Other
42,780

 

 

 
42,780

 
42,690

 

 

 
42,690

Total
$
11,946,522

 
$
342,209

 
$
9,218

 
$
12,279,513

 
$
11,410,447

 
$
85,611

 
$
108,737

 
$
11,387,321



10

Table of Contents

All mortgage-backed securities included in the above table were issued by U.S. government agencies and corporations. At June 30, 2019, approximately 99.7% of the securities in our municipal bond portfolio were issued by political subdivisions or agencies within the State of Texas, of which approximately 69.0% are either guaranteed by the Texas Permanent School Fund, which has a “triple A” insurer financial strength rating, or are secured by U.S. Treasury securities via defeasance of the debt by the issuers. Securities with limited marketability and that do not have readily determinable fair values are carried at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar securities of the same issuer. These securities include stock in the Federal Reserve Bank and the Federal Home Loan Bank and are reported as other available for sale securities in the table above. The carrying value of securities pledged to secure public funds, trust deposits, repurchase agreements and for other purposes, as required or permitted by law was $3.5 billion at June 30, 2019 and $3.8 billion at December 31, 2018.
During the fourth quarter of 2012, we reclassified certain securities from available for sale to held to maturity. The securities had an aggregate fair value of $2.3 billion with an aggregate net unrealized gain of $165.7 million ($107.7 million, net of tax) on the date of the transfer. The net unamortized, unrealized gain on the remaining transferred securities included in accumulated other comprehensive income in the accompanying balance sheet as of June 30, 2019 totaled $2.1 million ($1.6 million, net of tax). This amount will be amortized out of accumulated other comprehensive income over the remaining life of the underlying securities as an adjustment of the yield on those securities.
Unrealized Losses. As of June 30, 2019, securities with unrealized losses, segregated by length of impairment, were as follows:
 
Less than 12 Months
 
More than 12 Months
 
Total
 
Estimated
Fair Value
 
Unrealized
Losses
 
Estimated
Fair Value
 
Unrealized
Losses
 
Estimated
Fair Value
 
Unrealized
Losses
Held to Maturity
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage-backed securities
$

 
$

 
$
900

 
$
4

 
$
900

 
$
4

Total
$

 
$

 
$
900

 
$
4

 
$
900

 
$
4

Available for Sale
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury
$

 
$

 
$
1,819,942

 
$
4,943

 
$
1,819,942

 
$
4,943

Residential mortgage-backed securities
12,258

 
38

 
116,919

 
1,365

 
129,177

 
1,403

States and political subdivisions
49,020

 
1,279

 
186,554

 
1,593

 
235,574

 
2,872

Total
$
61,278

 
$
1,317

 
$
2,123,415

 
$
7,901

 
$
2,184,693

 
$
9,218


Declines in the fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses to the extent the impairment is related to credit losses. The amount of the impairment related to other factors is recognized in other comprehensive income. In estimating other-than-temporary impairment losses, management considers, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) the intent and our ability to retain our investment in the issuer for a period of time sufficient to allow for any anticipated recovery in cost.
Management has the ability and intent to hold the securities classified as held to maturity in the table above until they mature, at which time we expect to receive full value for the securities. Furthermore, as of June 30, 2019, management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is more likely than not that we will not have to sell any such securities before a recovery of cost. Any unrealized losses are due to increases in market interest rates over the yields available at the time the underlying securities were purchased. The fair value is expected to recover as the securities approach their maturity date or repricing date or if market yields for such investments decline. Management does not believe any of the securities are impaired due to reasons of credit quality. Accordingly, as of June 30, 2019, management believes the impairments detailed in the table above are temporary and no impairment loss has been realized in our consolidated income statement.

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Table of Contents

Contractual Maturities. The amortized cost and estimated fair value of securities, excluding trading securities, at June 30, 2019 are presented below by contractual maturity. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Residential mortgage-backed securities and equity securities are shown separately since they are not due at a single maturity date.
 
Held to Maturity
 
Available for Sale
 
Amortized
Cost
 
Estimated
Fair Value
 
Amortized
Cost
 
Estimated
Fair Value
Due in one year or less
$
21,334

 
$
21,546

 
$
1,974,510

 
$
1,968,237

Due after one year through five years
128,125

 
131,517

 
1,427,453

 
1,454,226

Due after five years through ten years
534,695

 
547,279

 
400,327

 
421,390

Due after ten years
348,591

 
359,073

 
5,888,691

 
6,145,168

Residential mortgage-backed securities
2,554

 
2,563

 
2,212,761

 
2,247,712

Equity securities

 

 
42,780

 
42,780

Total
$
1,035,299

 
$
1,061,978

 
$
11,946,522

 
$
12,279,513


Sales of Securities. Sales of securities available for sale were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Proceeds from sales
$
2,346,626

 
$
7,905,521

 
$
3,291,529

 
$
10,890,388

Gross realized gains
803

 
3

 
803

 
3

Gross realized losses
(634
)
 
(63
)
 
(634
)
 
(82
)
Tax (expense) benefit of securities gains/losses
(35
)
 
13

 
(35
)
 
17


Premiums and Discounts. Premium amortization and discount accretion included in interest income on securities was as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Premium amortization
$
(29,408
)
 
$
(26,689
)
 
$
(59,287
)
 
$
(52,723
)
Discount accretion
1,378

 
2,010

 
2,561

 
3,787

Net (premium amortization) discount accretion
$
(28,030
)
 
$
(24,679
)
 
$
(56,726
)
 
$
(48,936
)

Trading Account Securities. Trading account securities, at estimated fair value, were as follows:
 
June 30,
2019
 
December 31,
2018
U.S. Treasury
$
22,642

 
$
21,928

States and political subdivisions
2,840

 
2,158

Total
$
25,482

 
$
24,086


Net gains and losses on trading account securities were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Net gain on sales transactions
$
552

 
$
434

 
$
1,058

 
$
939

Net mark-to-market gains (losses)
27

 
23

 
31

 
(13
)
Net gain (loss) on trading account securities
$
579

 
$
457

 
$
1,089

 
$
926



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Table of Contents

Note 3 - Loans
Loans were as follows:
 
June 30,
2019
 
Percentage
of Total
 
December 31,
2018
 
Percentage
of Total
Commercial and industrial
$
5,380,487

 
37.2
%
 
$
5,111,957

 
36.3
%
Energy:
 
 
 
 
 
 
 
Production
1,197,717

 
8.3

 
1,309,314

 
9.3

Service
173,473

 
1.2

 
168,775

 
1.2

Other
110,159

 
0.7

 
124,509

 
0.9

Total energy
1,481,349

 
10.2

 
1,602,598

 
11.4

Commercial real estate:
 
 
 
 
 
 
 
Commercial mortgages
4,291,781

 
29.7

 
4,121,966

 
29.2

Construction
1,323,040

 
9.2

 
1,267,717

 
9.0

Land
299,435

 
2.1

 
306,755

 
2.2

Total commercial real estate
5,914,256

 
41.0

 
5,696,438

 
40.4

Consumer real estate:
 
 
 
 
 
 
 
Home equity loans
356,754

 
2.5

 
353,924

 
2.5

Home equity lines of credit
349,061

 
2.4

 
337,168

 
2.4

Other
453,083

 
3.1

 
427,898

 
3.0

Total consumer real estate
1,158,898

 
8.0

 
1,118,990

 
7.9

Total real estate
7,073,154

 
49.0

 
6,815,428

 
48.3

Consumer and other
524,159

 
3.6

 
569,750

 
4.0

Total loans
$
14,459,149

 
100.0
%
 
$
14,099,733

 
100.0
%

Concentrations of Credit. Most of our lending activity occurs within the State of Texas, including the four largest metropolitan areas of Austin, Dallas/Ft. Worth, Houston and San Antonio, as well as other markets. The majority of our loan portfolio consists of commercial and industrial and commercial real estate loans. As of June 30, 2019, there were no concentrations of loans related to any single industry in excess of 10% of total loans other than energy loans, which totaled 10.2% of total loans. Unfunded commitments to extend credit and standby letters of credit issued to customers in the energy industry totaled $1.3 billion and $59.9 million, respectively, as of June 30, 2019.
Foreign Loans. We have U.S. dollar denominated loans and commitments to borrowers in Mexico. The outstanding balance of these loans and the unfunded amounts available under these commitments were not significant at June 30, 2019 or December 31, 2018.
Related Party Loans. In the ordinary course of business, we have granted loans to certain directors, executive officers and their affiliates (collectively referred to as “related parties”). Such loans totaled $291.8 million at June 30, 2019 and $256.1 million at December 31, 2018.
Non-Accrual and Past Due Loans. Non-accrual loans, segregated by class of loans, were as follows:
 
June 30,
2019
 
December 31,
2018
Commercial and industrial
$
18,768

 
$
9,239

Energy
40,228

 
46,932

Commercial real estate:
 
 
 
Buildings, land and other
10,437

 
15,268

Construction

 

Consumer real estate
669

 
892

Consumer and other
1,419

 
1,408

Total
$
71,521

 
$
73,739


Had non-accrual loans performed in accordance with their original contract terms, we would have recognized additional interest income, net of tax, of approximately $1.1 million and $2.1 million for the three and six months ended June 30, 2019, compared to $1.4 million and $2.9 million for the three and six months ended June 30, 2018.

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Table of Contents

An age analysis of past due loans (including both accruing and non-accruing loans), segregated by class of loans, as of June 30, 2019 was as follows:
 
Loans
30-89 Days
Past Due
 
Loans
90 or More
Days
Past Due
 
Total
Past Due
Loans
 
Current
Loans
 
Total
Loans
 
Accruing
Loans 90 or
More Days
Past Due
Commercial and industrial
$
28,577

 
$
18,751

 
$
47,328

 
$
5,333,159

 
$
5,380,487

 
$
6,823

Energy
3,546

 
20

 
3,566

 
1,477,783

 
1,481,349

 
20

Commercial real estate:
 
 
 
 
 
 
 
 
 
 
 
Buildings, land and other
13,516

 
8,470

 
21,986

 
4,569,230

 
4,591,216

 
4,808

Construction
14,425

 
774

 
15,199

 
1,307,841

 
1,323,040

 
774

Consumer real estate
9,237

 
1,610

 
10,847

 
1,148,051

 
1,158,898

 
1,191

Consumer and other
5,015

 
2,105

 
7,120

 
517,039

 
524,159

 
2,031

Total
$
74,316

 
$
31,730

 
$
106,046

 
$
14,353,103

 
$
14,459,149

 
$
15,647


Impaired Loans. Impaired loans are set forth in the following table. No interest income was recognized on impaired loans subsequent to their classification as impaired.
 
Unpaid Contractual
Principal
Balance
 
Recorded Investment
With No
Allowance
 
Recorded Investment
With
Allowance
 
Total
Recorded
Investment
 
Related
Allowance
June 30, 2019
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
18,536

 
$
4,455

 
$
12,267

 
$
16,722

 
$
6,276

Energy
55,043

 
5,866

 
33,946

 
39,812

 
9,721

Commercial real estate:
 
 
 
 
 
 

 
 
Buildings, land and other
10,329

 
5,196

 
4,760

 
9,956

 
1,420

Construction

 

 

 

 

Consumer real estate
293

 
293

 

 
293

 

Consumer and other
1,532

 

 
1,419

 
1,419

 
1,419

Total
$
85,733

 
$
15,810

 
$
52,392

 
$
68,202

 
$
18,836

December 31, 2018
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
9,094

 
$
2,842

 
$
4,287

 
$
7,129

 
$
2,558

Energy
67,900

 
6,817

 
39,890

 
46,707

 
9,671

Commercial real estate:
 
 
 
 
 
 
 
 
 
Buildings, land and other
15,774

 
2,168

 
12,517

 
14,685

 
2,599

Construction

 

 

 

 

Consumer real estate
293

 
293

 

 
293

 

Consumer and other
1,475

 

 
1,407

 
1,407

 
1,407

Total
$
94,536

 
$
12,120

 
$
58,101

 
$
70,221

 
$
16,235


The average recorded investment in impaired loans was as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019

2018
Commercial and industrial
$
15,462

 
$
15,307

 
$
12,684

 
$
24,791

Energy
42,643

 
92,380

 
43,997

 
93,001

Commercial real estate:
 
 
 
 
 
 
 
Buildings, land and other
18,139

 
13,867

 
16,988

 
11,376

Construction
205

 

 
137

 

Consumer real estate
789

 
860

 
624

 
978

Consumer and other
1,422

 
813

 
1,417

 
542

Total
$
78,660

 
$
123,227

 
$
75,847

 
$
130,688



14

Table of Contents

Troubled Debt Restructurings. Troubled debt restructurings during the six months ended June 30, 2019 and June 30, 2018 are set forth in the following table.
 
Six Months Ended 
 June 30, 2019
 
Six Months Ended 
 June 30, 2018
 
Balance at
Restructure
 
Balance at
Period-End
 
Balance at
Restructure
 
Balance at
Period-End
Commercial and industrial
$
677

 
$
555

 
$
2,203

 
$
843

Energy

 

 
13,708

 

Commercial real estate:
 
 
 
 
 
 
 
Buildings, land and other
7,347

 
7,308

 

 

 
$
8,024

 
$
7,863

 
$
15,911

 
$
843


Loan modifications are typically related to extending amortization periods, converting loans to interest only for a limited period of time, deferral of interest payments, waiver of certain covenants, consolidating notes and/or reducing collateral or interest rates. The modifications during the reported periods did not significantly impact our determination of the allowance for loan losses.
Additional information related to restructured loans as of or for the three months ended June 30, 2019 and June 30, 2018 is set forth in the following table.
 
June 30, 2019
 
June 30, 2018
Restructured loans past due in excess of 90 days at period-end:
 
 
 
Number of loans

 

Dollar amount of loans
$

 
$

Restructured loans on non-accrual status at period end
3,890

 
843

Charge-offs of restructured loans:
 
 
 
Recognized in connection with restructuring

 

Recognized on previously restructured loans

 
1,650

Proceeds from sale of restructured loans

 
13,350

Credit Quality Indicators. As part of the on-going monitoring of the credit quality of our loan portfolio, management tracks certain credit quality indicators including trends related to (i) the weighted-average risk grade of commercial loans, (ii) the level of classified commercial loans, (iii) the delinquency status of consumer loans (see details above), (iv) net charge-offs, (v) non-performing loans (see details above) and (vi) the general economic conditions in the State of Texas.
We utilize a risk grading matrix to assign a risk grade to each of our commercial loans. Loans are graded on a scale of 1 to 14. A description of the general characteristics of the 14 risk grades is set forth in our 2018 Form 10-K. In monitoring credit quality trends in the context of assessing the appropriate level of the allowance for loan losses, we monitor portfolio credit quality by the weighted-average risk grade of each class of commercial loan. Individual relationship managers review updated financial information for all pass grade loans to reassess the risk grade on at least an annual basis. When a loan has a risk grade of 9, it is still considered a pass grade loan; however, it is considered to be on management’s “watch list,” where a significant risk-modifying action is anticipated in the near term. When a loan has a risk grade of 10 or higher, a special assets officer monitors the loan on an on-going basis.

15

Table of Contents

The following tables present weighted-average risk grades for all commercial loans by class.
 
June 30, 2019
 
December 31, 2018
 
Weighted
Average
Risk Grade
 
Loans
 
Weighted
Average
Risk Grade
 
Loans
Commercial and industrial:
 
 
 
 
 
 
 
Risk grades 1-8
6.13

 
$
5,024,193

 
6.12

 
$
4,862,275

Risk grade 9
9.00

 
200,167

 
9.00

 
112,431

Risk grade 10
10.00

 
43,269

 
10.00

 
58,328

Risk grade 11
11.00

 
94,090

 
11.00

 
69,684

Risk grade 12
12.00

 
12,492

 
12.00

 
6,681

Risk grade 13
13.00

 
6,276

 
13.00

 
2,558

Total
6.37

 
$
5,380,487

 
6.30

 
$
5,111,957

Energy
 
 
 
 
 
 
 
Risk grades 1-8
5.81

 
$
1,305,553

 
5.76

 
$
1,451,673

Risk grade 9
9.00

 
82,176

 
9.00

 
35,565

Risk grade 10
10.00

 
2,061

 
10.00

 
43,001

Risk grade 11
11.00

 
51,331

 
11.00

 
25,427

Risk grade 12
12.00

 
30,507

 
12.00

 
37,261

Risk grade 13
13.00

 
9,721

 
13.00

 
9,671

Total
6.35

 
$
1,481,349

 
6.22

 
$
1,602,598

Commercial real estate:
 
 

 
 
 
 
Buildings, land and other
 
 
 
 
 
 
 
Risk grades 1-8
6.76

 
$
4,290,833

 
6.76

 
$
4,143,264

Risk grade 9
9.00

 
128,068

 
9.00

 
109,660

Risk grade 10
10.00

 
76,686

 
10.00

 
62,353

Risk grade 11
11.00

 
85,192

 
11.00

 
98,176

Risk grade 12
12.00

 
9,017

 
12.00

 
12,669

Risk grade 13
13.00

 
1,420

 
13.00

 
2,599

Total
6.97

 
$
4,591,216

 
6.98

 
$
4,428,721

Construction
 
 
 
 
 
 
 
Risk grades 1-8
7.17

 
$
1,271,280

 
7.13

 
$
1,177,260

Risk grade 9
9.00

 
35,453

 
9.00

 
60,754

Risk grade 10
10.00

 
13,355

 
10.00

 
24,877

Risk grade 11
11.00

 
2,952

 
11.00

 
4,826

Risk grade 12
12.00

 

 
12.00

 

Risk grade 13
13.00

 

 
13.00

 

Total
7.26

 
$
1,323,040

 
7.29

 
$
1,267,717


Net (charge-offs)/recoveries, segregated by class of loans, were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Commercial and industrial
$
(2,454
)
 
$
(3,548
)
 
$
(4,392
)
 
$
(11,223
)
Energy
(1,971
)
 
(2,076
)
 
(1,924
)
 
(4,925
)
Commercial real estate:
 
 
 
 
 
 
 
Buildings, land and other
(531
)
 
(402
)
 
(504
)
 
(321
)
Construction
3

 
6

 
6

 
8

Consumer real estate
(286
)
 
(164
)
 
(1,975
)
 
(690
)
Consumer and other
(2,582
)
 
(1,726
)
 
(5,817
)
 
(3,183
)
Total
$
(7,821
)
 
$
(7,910
)
 
$
(14,606
)
 
$
(20,334
)


16

Table of Contents

In assessing the general economic conditions in the State of Texas, management monitors and tracks the Texas Leading Index (“TLI”), which is produced by the Federal Reserve Bank of Dallas. The TLI, the components of which are more fully described in our 2018 Form 10-K, totaled 128.8 at June 30, 2019 and 126.4 at December 31, 2018. A higher TLI value implies more favorable economic conditions.
Allowance for Loan Losses. The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management’s best estimate of inherent losses that have been incurred within the existing portfolio of loans. The allowance, in the judgment of management, is necessary to reserve for estimated loan losses and risks inherent in the loan portfolio. Our allowance for loan loss methodology, which is more fully described in our 2018 Form 10-K, follows the accounting guidance set forth in U.S. generally accepted accounting principles and the Interagency Policy Statement on the Allowance for Loan and Lease Losses, which was jointly issued by U.S. bank regulatory agencies. The level of the allowance reflects management’s continuing evaluation of industry concentrations, specific credit risks, loan loss and recovery experience, current loan portfolio quality, present economic, political and regulatory conditions and unidentified losses inherent in the current loan portfolio. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off.
The following table presents details of the allowance for loan losses allocated to each portfolio segment as of June 30, 2019 and December 31, 2018 and detailed on the basis of the impairment evaluation methodology we used:
 
Commercial
and
Industrial
 
Energy
 
Commercial
Real Estate
 
Consumer
Real Estate
 
Consumer
and Other
 
Total
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Historical valuation allowances
$
31,699

 
$
9,087

 
$
20,979

 
$
2,619

 
$
7,592

 
$
71,976

Specific valuation allowances
6,276

 
9,721

 
1,420

 

 
1,419

 
18,836

General valuation allowances
10,227

 
4,487

 
4,105

 
1,560

 
(397
)
 
19,982

Macroeconomic valuation allowances
9,512

 
2,523

 
9,410

 
1,458

 
1,232

 
24,135

Total
$
57,714

 
$
25,818

 
$
35,914

 
$
5,637

 
$
9,846

 
$
134,929

Allocated to loans:
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
6,276

 
$
9,721

 
$
1,420

 
$

 
$
1,419

 
$
18,836

Collectively evaluated
51,438

 
16,097

 
34,494

 
5,637

 
8,427

 
116,093

Total
$
57,714

 
$
25,818

 
$
35,914

 
$
5,637

 
$
9,846

 
$
134,929

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
Historical valuation allowances
$
25,351

 
$
9,697

 
$
20,817

 
$
2,688

 
$
6,845

 
$
65,398

Specific valuation allowances
2,558

 
9,671

 
2,599

 

 
1,407

 
16,235

General valuation allowances
10,062

 
6,014

 
4,366

 
1,671

 
(13
)
 
22,100

Macroeconomic valuation allowances
10,609

 
3,670

 
10,995

 
1,744

 
1,381

 
28,399

Total
$
48,580

 
$
29,052

 
$
38,777

 
$
6,103

 
$
9,620

 
$
132,132

Allocated to loans:
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
2,558

 
$
9,671

 
$
2,599

 
$

 
$
1,407

 
$
16,235

Collectively evaluated
46,022

 
19,381

 
36,178

 
6,103

 
8,213

 
115,897

Total
$
48,580

 
$
29,052

 
$
38,777

 
$
6,103

 
$
9,620

 
$
132,132



17

Table of Contents

Our recorded investment in loans as of June 30, 2019 and December 31, 2018 related to each balance in the allowance for loan losses by portfolio segment and detailed on the basis of the impairment methodology we used was as follows:
 
Commercial
and
Industrial
 
Energy
 
Commercial
Real Estate
 
Consumer
Real Estate
 
Consumer
and Other
 
Total
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
16,722

 
$
39,812

 
$
9,956

 
$
293

 
$
1,419

 
$
68,202

Collectively evaluated
5,363,765

 
1,441,537

 
5,904,300

 
1,158,605

 
522,740

 
14,390,947

Total
$
5,380,487

 
$
1,481,349

 
$
5,914,256

 
$
1,158,898

 
$
524,159

 
$
14,459,149

December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
Individually evaluated
$
7,129

 
$
46,707

 
$
14,685

 
$
293

 
$
1,407

 
$
70,221

Collectively evaluated
5,104,828

 
1,555,891

 
5,681,753

 
1,118,697

 
568,343

 
14,029,512

Total
$
5,111,957

 
$
1,602,598

 
$
5,696,438

 
$
1,118,990

 
$
569,750

 
$
14,099,733


The following table details activity in the allowance for loan losses by portfolio segment for the three and six months ended June 30, 2019 and 2018. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories.
 
Commercial
and
Industrial
 
Energy
 
Commercial
Real Estate
 
Consumer
Real Estate
 
Consumer
and Other
 
Total
Three months ended:
 
 
 
 
 
 
 
 
 
 
 
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
58,571

 
$
25,343

 
$
36,455

 
$
5,661

 
$
10,320

 
$
136,350

Provision for loan losses
1,597

 
2,446

 
(13
)
 
262

 
2,108

 
6,400

Charge-offs
(3,389
)
 
(2,000
)
 
(557
)
 
(601
)
 
(5,103
)
 
(11,650
)
Recoveries
935

 
29

 
29

 
315

 
2,521

 
3,829

Net charge-offs
(2,454
)
 
(1,971
)
 
(528
)
 
(286
)
 
(2,582
)
 
(7,821
)
Ending balance
$
57,714

 
$
25,818

 
$
35,914

 
$
5,637

 
$
9,846

 
$
134,929

June 30, 2018
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
57,733

 
$
39,039

 
$
38,474

 
$
6,349

 
$
8,290

 
$
149,885

Provision for loan losses
3,528

 
350

 
840

 
151

 
3,382

 
8,251

Charge-offs
(4,153
)
 
(2,689
)
 
(614
)
 
(482
)
 
(3,994
)
 
(11,932
)
Recoveries
605

 
613

 
218

 
318

 
2,268

 
4,022

Net charge-offs
(3,548
)
 
(2,076
)
 
(396
)
 
(164
)
 
(1,726
)
 
(7,910
)
Ending balance
$
57,713

 
$
37,313

 
$
38,918

 
$
6,336

 
$
9,946

 
$
150,226

 
 
 
 
 
 
 
 
 
 
 
 
Six months ended:
 
 
 
 
 
 
 
 
 
 
 
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
48,580

 
$
29,052

 
$
38,777

 
$
6,103

 
$
9,620

 
$
132,132

Provision for loan losses
13,526

 
(1,310
)
 
(2,365
)
 
1,509

 
6,043

 
17,403

Charge-offs
(6,077
)
 
(2,000
)
 
(617
)
 
(2,379
)
 
(10,800
)
 
(21,873
)
Recoveries
1,685

 
76

 
119

 
404

 
4,983

 
7,267

Net charge-offs
(4,392
)
 
(1,924
)
 
(498
)
 
(1,975
)
 
(5,817
)
 
(14,606
)
Ending balance
$
57,714

 
$
25,818

 
$
35,914

 
$
5,637

 
$
9,846

 
$
134,929

June 30, 2018
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
59,614

 
$
51,528

 
$
30,948

 
$
5,657

 
$
7,617

 
$
155,364

Provision for loan losses
9,322

 
(9,290
)
 
8,283

 
1,369

 
5,512

 
15,196

Charge-offs
(13,405
)
 
(5,539
)
 
(619
)
 
(1,201
)
 
(7,966
)
 
(28,730
)
Recoveries
2,182

 
614

 
306

 
511

 
4,783

 
8,396

Net charge-offs
(11,223
)
 
(4,925
)
 
(313
)
 
(690
)
 
(3,183
)
 
(20,334
)
Ending balance
$
57,713

 
$
37,313

 
$
38,918

 
$
6,336

 
$
9,946

 
$
150,226



18

Table of Contents

Note 4 - Goodwill and Other Intangible Assets
Goodwill and other intangible assets are presented in the table below.
 
June 30,
2019
 
December 31,
2018
Goodwill
$
654,952

 
$
654,952

Other intangible assets:
 
 
 
Core deposits
$
2,466

 
$
2,959

Customer relationships
547

 
672

Non-compete agreements
6

 
18

 
$
3,019

 
$
3,649

The estimated aggregate future amortization expense for intangible assets remaining as of June 30, 2019 is as follows:
Remainder of 2019
$
537

2020
919

2021
697

2022
481

2023
283

Thereafter
102

 
$
3,019


Note 5 - Deposits
Deposits were as follows:
 
June 30,
2019
 
Percentage
of Total
 
December 31,
2018
 
Percentage
of Total
Non-interest-bearing demand deposits:
 
 
 
 
 
Commercial and individual
$
9,634,530

 
37.1
%
 
$
10,305,850

 
37.9
%
Correspondent banks
192,478

 
0.7

 
235,748

 
0.9

Public funds
309,429

 
1.2

 
455,896

 
1.7

Total non-interest-bearing demand deposits
10,136,437

 
39.0

 
10,997,494

 
40.5

Interest-bearing deposits:
 
 
 
 
 
 
 
Private accounts:
 
 
 
 
 
 
 
Savings and interest checking
6,754,027

 
26.0

 
6,977,813

 
25.7

Money market accounts
7,544,621

 
29.0

 
7,777,470

 
28.6

Time accounts of $100,000 or more
674,198

 
2.6

 
526,789

 
2.0

Time accounts under $100,000
344,700

 
1.3

 
331,511

 
1.2

Total private accounts
15,317,546

 
58.9

 
15,613,583

 
57.5

Public funds:
 
 
 
 
 
 
 
Savings and interest checking
456,871

 
1.8

 
473,754

 
1.8

Money market accounts
67,620

 
0.3

 
59,953

 
0.2

Time accounts of $100,000 or more
6,524

 

 
4,332

 

Time accounts under $100,000
25

 

 
88

 

Total public funds
531,040

 
2.1

 
538,127

 
2.0

Total interest-bearing deposits
15,848,586

 
61.0

 
16,151,710

 
59.5

Total deposits
$
25,985,023

 
100.0
%
 
$
27,149,204

 
100.0
%


The following table presents additional information about our deposits:
 
June 30,
2019
 
December 31,
2018
Deposits from the Certificate of Deposit Account Registry Service (CDARS) deposits
$
356

 
$

Deposits from foreign sources (primarily Mexico)
766,942

 
752,658

Deposits not covered by deposit insurance
11,747,001

 
13,111,210



19

Table of Contents

Note 6 - Commitments and Contingencies
Financial Instruments with Off-Balance-Sheet Risk. In the normal course of business, we enter into various transactions, which, in accordance with generally accepted accounting principles are not included in our consolidated balance sheets. We enter into these transactions to meet the financing needs of our customers. As more fully discussed in our 2018 Form 10-K, these transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in the consolidated balance sheets. We minimize our exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures.
Financial instruments with off-balance-sheet risk were as follows:
 
June 30,
2019
 
December 31,
2018
Commitments to extend credit
$
8,552,270

 
$
8,369,721

Standby letters of credit
294,722

 
271,575

Deferred standby letter of credit fees
1,776

 
2,069


Lease Commitments. We lease certain office facilities and office equipment under operating leases. Rent expense for all operating leases totaled $9.7 million and $18.3 million during the three and six months ended June 30, 2019 and $8.1 million and $16.3 million during the three and six months ended June 30, 2018. On January 1, 2019, we adopted a new accounting standard which required the recognition of our operating leases on our balance sheet. See Note 1 - Significant Accounting Policies. As of June 30, 2019, right-of-use lease assets and related lease liabilities totaled $284.5 million and $291.7 million, respectively, and are included with premises and equipment and accrued interest payable and other liabilities, respectively, on our accompanying consolidated balance sheet. During the second quarter of 2019, we recognized a right-of-use asset totaling $121.7 million and a related lease liability totaling $121.7 million in connection with the commencement of the lease of our new corporate headquarters facility in downtown San Antonio. There has been no significant change in our expected future minimum lease payments since December 31, 2018. See the 2018 Form 10-K for information regarding these commitments.
Litigation. We are subject to various claims and legal actions that have arisen in the course of conducting business. Management does not expect the ultimate disposition of these matters to have a material adverse impact on our financial statements.
Note 7 - Capital and Regulatory Matters
Banks and bank holding companies are subject to various regulatory capital requirements administered by state and federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators about components, risk weighting and other factors.
Cullen/Frost’s and Frost Bank’s Common Equity Tier 1 capital includes common stock and related paid-in capital, net of treasury stock, and retained earnings. In connection with the adoption of the Basel III Capital Rules, we elected to opt-out of the requirement to include most components of accumulated other comprehensive income in Common Equity Tier 1. Common Equity Tier 1 for both Cullen/Frost and Frost Bank is reduced by goodwill and other intangible assets, net of associated deferred tax liabilities, and subject to transition provisions. Frost Bank's Common Equity Tier 1 is also reduced by its equity investment in its financial subsidiary, Frost Insurance Agency (“FIA”).
Tier 1 capital includes Common Equity Tier 1 capital and additional Tier 1 capital. For Cullen/Frost, additional Tier 1 capital at June 30, 2019 and December 31, 2018 includes $144.5 million of 5.375% non-cumulative perpetual preferred stock. Frost Bank did not have any additional Tier 1 capital beyond Common Equity Tier 1 at June 30, 2019 or December 31, 2018.
Total capital includes Tier 1 capital and Tier 2 capital. Tier 2 capital for both Cullen/Frost and Frost Bank includes a permissible portion of the allowance for loan losses. Tier 2 capital for Cullen/Frost also includes $100.0 million of qualified subordinated debt and $133.0 million of trust preferred securities at both June 30, 2019 and December 31, 2018.

20

Table of Contents

The following tables present actual and required capital ratios as of June 30, 2019 and December 31, 2018 for Cullen/Frost and Frost Bank under the Basel III Capital Rules. The Basel III Capital Rules became fully phased-in on January 1, 2019. The minimum required capital amounts presented as of December 31, 2018 include the minimum required capital levels applicable as of that date as well as the minimum required capital levels as of January 1, 2019 when the Basel III Capital Rules became fully phased-in. Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. See the 2018 Form 10-K for a more detailed discussion of the Basel III Capital Rules. After a review of risk-weight classifications during the first quarter of 2019, risk-weightings for certain loans were reclassified. Amounts reported as of December 31, 2018 have been revised to reflect these reclassifications.
 
Actual
 
Minimum Capital Required - Basel III
 
Required to be
Considered Well
Capitalized
 
Capital
Amount
 
Ratio
 
Capital
Amount
 
Ratio
 
Capital
Amount
 
Ratio
June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
Common Equity Tier 1 to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
$
2,733,377

 
12.29
%
 
$
1,556,842

 
7.00
%
 
$
1,445,639

 
6.50
%
Frost Bank
2,841,165

 
12.81

 
1,552,278

 
7.00

 
1,441,401

 
6.50

Tier 1 Capital to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
2,877,863

 
12.94

 
1,890,451

 
8.50

 
1,779,248

 
8.00

Frost Bank
2,841,165

 
12.81

 
1,884,909

 
8.50

 
1,774,032

 
8.00

Total Capital to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
3,246,292

 
14.60

 
2,335,264

 
10.50

 
2,224,061

 
10.00

Frost Bank
2,976,594

 
13.42

 
2,328,417

 
10.50

 
2,217,540

 
10.00

Leverage Ratio
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
2,877,863

 
9.40

 
1,224,631

 
4.00

 
1,530,789

 
5.00

Frost Bank
2,841,165

 
9.29

 
1,223,119

 
4.00

 
1,528,899

 
5.00

 
Actual
 
Minimum Capital Required - Basel III Phase-In Schedule
 
Minimum Capital Required - Basel III
Fully Phased-In
 
Required to be
Considered Well
Capitalized
 
Capital
Amount
 
Ratio
 
Capital
Amount
 
Ratio
 
Capital
Amount
 
Ratio
 
Capital
Amount
 
Ratio
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Common Equity Tier 1 to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
$
2,642,475

 
12.27
%
 
$
1,372,573

 
6.375
%
 
$
1,507,139

 
7.00
%
 
$
1,358,171

 
6.50
%
Frost Bank
2,743,973

 
12.78

 
1,368,701

 
6.375

 
1,502,887

 
7.00

 
1,354,222

 
6.50

Tier 1 Capital to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
2,786,961

 
12.94

 
1,695,532

 
7.875

 
1,830,098

 
8.50

 
1,671,595

 
8.00

Frost Bank
2,743,973

 
12.78

 
1,690,748

 
7.875

 
1,824,934

 
8.50

 
1,666,735

 
8.00

Total Capital to Risk-Weighted Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
3,152,593

 
14.64

 
2,126,143

 
9.875

 
2,260,709

 
10.50

 
2,089,494

 
10.00

Frost Bank
2,876,605

 
13.40

 
2,120,144

 
9.875

 
2,254,331

 
10.50

 
2,083,419

 
10.00

Leverage Ratio
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cullen/Frost
2,786,961

 
9.06

 
1,231,028

 
4.00

 
1,231,028

 
4.00

 
1,538,785

 
5.00

Frost Bank
2,743,973

 
8.93

 
1,229,650

 
4.00

 
1,229,650

 
4.00

 
1,537,062

 
5.00


As of June 30, 2019, capital levels at Cullen/Frost and Frost Bank exceed all capital adequacy requirements under the fully phased-in Basel III Capital Rules. Based on the ratios presented above, capital levels as of June 30, 2019 at Cullen/Frost and Frost Bank exceed the minimum levels necessary to be considered “well capitalized.”
Cullen/Frost and Frost Bank are subject to the regulatory capital requirements administered by the Federal Reserve Board and, for Frost Bank, the Federal Deposit Insurance Corporation (“FDIC”). Regulatory authorities can initiate certain mandatory actions if Cullen/Frost or Frost Bank fail to meet the minimum capital requirements, which could have a direct material effect on our financial statements. Management believes, as of June 30, 2019, that Cullen/Frost and Frost Bank meet all capital adequacy requirements to which they are subject.

21

Table of Contents

Stock Repurchase Plans. From time to time, our board of directors has authorized stock repurchase plans. In general, stock repurchase plans allow us to proactively manage our capital position and return excess capital to shareholders. Shares purchased under such plans also provide us with shares of common stock necessary to satisfy obligations related to stock compensation awards. On October 24, 2017, our board of directors authorized a $150.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a two-year period from time to time at various prices in the open market or through private transactions. We repurchased 496,307 shares at a total cost of $50.0 million under this plan during the second quarter of 2019 while we repurchased 1,027,292 shares at a total cost of $100.0 million during the fourth quarter of 2018. On July 24, 2019, our board of directors authorized a $100.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a one-year period from time to time at various prices in the open market or through private transactions. Under the Basel III Capital Rules, Cullen/Frost may not repurchase or redeem any of its preferred stock or subordinated notes and, in some cases, its common stock without the prior approval of the Federal Reserve Board.
Dividend Restrictions. In the ordinary course of business, Cullen/Frost is dependent upon dividends from Frost Bank to provide funds for the payment of dividends to shareholders and to provide for other cash requirements, including to repurchase its common stock. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of Frost Bank to fall below specified minimum levels. Approval is also required if dividends declared exceed the net profits for that year combined with the retained net profits for the preceding two years. Under the foregoing dividend restrictions and while maintaining its “well capitalized” status, at June 30, 2019, Frost Bank could pay aggregate dividends of up to $577.3 million to Cullen/Frost without prior regulatory approval.
Under the terms of the junior subordinated deferrable interest debentures that Cullen/Frost has issued to Cullen/Frost Capital Trust II and WNB Capital Trust I, Cullen/Frost has the right at any time during the term of the debentures to defer the payment of interest at any time or from time to time for an extension period not exceeding 20 consecutive quarterly periods with respect to each extension period. In the event that we have elected to defer interest on the debentures, we may not, with certain exceptions, declare or pay any dividends or distributions on our capital stock or purchase or acquire any of our capital stock.
Under the terms of our Series A Preferred Stock, in the event that we do not declare and pay dividends on our Series A Preferred Stock for the most recent dividend period, we may not, with certain exceptions, declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our common stock or any of our securities that rank junior to our Series A Preferred Stock.

22

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Note 8 - Derivative Financial Instruments
The fair value of derivative positions outstanding is included in accrued interest receivable and other assets and accrued interest payable and other liabilities in the accompanying consolidated balance sheets and in the net change in each of these financial statement line items in the accompanying consolidated statements of cash flows.
Interest Rate Derivatives. We utilize interest rate swaps, caps and floors to mitigate exposure to interest rate risk and to facilitate the needs of our customers. Our objectives for utilizing these derivative instruments are described in our 2018 Form 10-K.
The notional amounts and estimated fair values of interest rate derivative contracts are presented in the following table. The fair values of interest rate derivative contracts are estimated utilizing internal valuation models with observable market data inputs, or as determined by the Chicago Mercantile Exchange (“CME”) for centrally cleared derivative contracts. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposure rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero as of June 30, 2019 and December 31, 2018.
 
June 30, 2019
 
December 31, 2018
 
Notional
Amount
 
Estimated
Fair Value
 
Notional
Amount
 
Estimated
Fair Value
Derivatives designated as hedges of fair value:
 
 
 
 
 
 
 
Financial institution counterparties:
 
 
 
 
 
 
 
Loan/lease interest rate swaps – assets
$
10,143

 
$
41

 
$
10,941

 
$
207

Loan/lease interest rate swaps – liabilities
3,429

 
(185
)
 
3,885

 
(199
)
Non-hedging interest rate derivatives:
 
 
 
 
 
 
 
Financial institution counterparties:
 
 
 
 
 
 
 
Loan/lease interest rate swaps – assets
134,415

 
205

 
496,887

 
2,384

Loan/lease interest rate swaps – liabilities
983,745

 
(19,896
)
 
691,143

 
(8,921
)
Loan/lease interest rate caps – assets
144,298

 
670

 
122,791

 
509

Customer counterparties:
 
 
 
 
 
 
 
Loan/lease interest rate swaps – assets
983,745

 
44,371

 
691,143

 
16,706

Loan/lease interest rate swaps – liabilities
134,415

 
(534
)
 
496,887

 
(8,891
)
Loan/lease interest rate caps – liabilities
144,298

 
(670
)
 
122,791

 
(509
)

The weighted-average rates paid and received for interest rate swaps outstanding at June 30, 2019 were as follows:
 
Weighted-Average
 
Interest
Rate
Paid
 
Interest
Rate
Received
Interest rate swaps:
 
 
 
Fair value hedge loan/lease interest rate swaps
2.29
%
 
2.41
%
Non-hedging interest rate swaps – financial institution counterparties
4.19

 
4.03

Non-hedging interest rate swaps – customer counterparties
4.03

 
4.19


The weighted-average strike rate for outstanding interest rate caps was 2.99% at June 30, 2019.
Commodity Derivatives. We enter into commodity swaps and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a commodity swap or option contract with a customer, we simultaneously enter into an offsetting contract with a third party financial institution to mitigate the exposure to fluctuations in commodity prices.

23

Table of Contents

The notional amounts and estimated fair values of non-hedging commodity swap and option derivative positions outstanding are presented in the following table. We obtain dealer quotations and use internal valuation models with observable market data inputs to value our commodity derivative positions.
 
 
 
June 30, 2019
 
December 31, 2018
 
Notional
Units
 
Notional
Amount
 
Estimated
Fair Value
 
Notional
Amount
 
Estimated
Fair Value
Financial institution counterparties:
 
 
 
 
 
 
 
 
 
Oil – assets
Barrels
 
1,745

 
$
7,880

 
2,416

 
$
24,332

Oil – liabilities
Barrels
 
1,135

 
(3,812
)
 
415

 
(646
)
Natural gas – assets
MMBTUs
 
10,197

 
1,861

 
5,745

 
417

Natural gas – liabilities
MMBTUs
 
3,066

 
(248
)
 
9,314

 
(1,272
)
Customer counterparties:
 
 
 
 
 
 
 
 
 
Oil – assets
Barrels
 
1,205

 
3,919

 
415

 
646

Oil – liabilities
Barrels
 
1,675

 
(7,662
)
 
2,416

 
(24,009
)
Natural gas – assets
MMBTUs
 
3,066

 
248

 
10,236

 
1,373

Natural gas – liabilities
MMBTUs
 
10,197

 
(1,768
)
 
4,823

 
(393
)

Foreign Currency Derivatives. We enter into foreign currency forward contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a foreign currency denominated transaction with a customer, we simultaneously enter into an offsetting contract with a third party financial institution to negate the exposure to fluctuations in foreign currency exchange rates. We also utilize foreign currency forward contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in foreign currency exchange rates on foreign currency holdings and certain short-term, non-U.S. dollar denominated loans. The notional amounts and fair values of open foreign currency forward contracts were as follows:
 
 
 
June 30, 2019
 
December 31, 2018
 
Notional
Currency
 
Notional
Amount
 
Estimated
Fair Value
 
Notional
Amount
 
Estimated
Fair Value
Financial institution counterparties:
 
 
 
 
 
 
 
 
 
Forward contracts – liabilities
CAD
 
5,339

 
$
(14
)
 
11,003

 
$
(13
)
Forward contracts – liabilities
GBP
 

 

 
142

 
(2
)
Forward contracts – liabilities
MXN
 

 

 
3,015

 
(132
)
Customer counterparties:
 
 
 
 
 
 
 
 
 
Forward contracts – assets
CAD
 
5,326

 
27

 
10,979

 
40

Forward contracts – assets
GBP
 

 

 
145

 
4

Forward contracts – assets
MXN
 

 

 
3,000

 
149


Gains, Losses and Derivative Cash Flows. For fair value hedges, the changes in the fair value of both the derivative hedging instrument and the hedged item are included in other non-interest income or other non-interest expense. The extent that such changes in fair value do not offset represents hedge ineffectiveness. Net cash flows from interest rate swaps on commercial loans/leases designated as hedging instruments in effective hedges of fair value are included in interest income on loans. For non-hedging derivative instruments, gains and losses due to changes in fair value and all cash flows are included in other non-interest income and other non-interest expense.
Amounts included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Commercial loan/lease interest rate swaps:
 
 
 
 
 
 
 
Amount of gain (loss) included in interest income on loans
$
28

 
$
31

 
$
54

 
$
(11
)
Amount of (gain) loss included in other non-interest expense
1

 
(1
)
 
1

 
(1
)

As stated above, we enter into non-hedge related derivative positions primarily to accommodate the business needs of our customers. Upon the origination of a derivative contract with a customer, we simultaneously enter into an offsetting derivative contract with a third party financial institution. We recognize immediate income based upon the difference in the bid/ask spread of the underlying transactions with our customers and the third party. Because we act only as an intermediary for our customer,

24

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subsequent changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact our results of operations.
Amounts included in the consolidated statements of income related to non-hedging interest rate, commodity and foreign currency derivative instruments are presented in the table below.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Non-hedging interest rate derivatives:
 
 
 
 
 
 
 
Other non-interest income
$
387

 
$
702

 
$
973

 
$
2,190

Other non-interest expense

 
17

 

 
(4
)
Non-hedging commodity derivatives:
 
 
 
 
 
 
 
Other non-interest income
110

 
(54
)
 
213

 
36

Non-hedging foreign currency derivatives:
 
 
 
 
 
 
 
Other non-interest income
12

 
91

 
29

 
150


Counterparty Credit Risk. Our credit exposure relating to interest rate swaps, commodity swaps/options and foreign currency forward contracts with bank customers was approximately $44.7 million at June 30, 2019. This credit exposure is partly mitigated as transactions with customers are generally secured by the collateral, if any, securing the underlying transaction being hedged. Our credit exposure, net of collateral pledged, relating to interest rate swaps, commodity swaps/options and foreign currency forward contracts with upstream financial institution counterparties was approximately $13.6 million at June 30, 2019. This amount was primarily related to initial margin payments to the CME and excess collateral we posted to counterparties. Collateral levels for upstream financial institution counterparties are monitored and adjusted as necessary. See Note 9 – Balance Sheet Offsetting and Repurchase Agreements for additional information regarding our credit exposure with upstream financial institution counterparties. The aggregate fair value of securities we posted as collateral related to derivative contracts totaled $147 thousand at June 30, 2019. At such date, we also had $26.9 million in cash collateral on deposit with other financial institution counterparties.
Note 9 - Balance Sheet Offsetting and Repurchase Agreements
Balance Sheet Offsetting. Certain financial instruments, including resell and repurchase agreements and derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Our derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” provisions. In such cases there is generally a legally enforceable right to offset recognized amounts and there may be an intention to settle such amounts on a net basis. Nonetheless, we do not generally offset such financial instruments for financial reporting purposes.
Information about financial instruments that are eligible for offset in the consolidated balance sheet as of June 30, 2019 is presented in the following tables.
 
Gross Amount
Recognized
 
Gross Amount
Offset
 
Net Amount
Recognized
June 30, 2019
 
 
 
 
 
Financial assets:
 
 
 
 
 
Derivatives:
 
 
 
 
 
Loan/lease interest rate swaps and caps
$
916

 
$

 
$
916

Commodity swaps and options
9,741

 

 
9,741

Foreign currency forward contracts

 

 

Total derivatives
10,657

 

 
10,657

Resell agreements
10,193

 

 
10,193

Total
$
20,850

 
$

 
$
20,850

Financial liabilities:
 
 
 
 
 
Derivatives:
 
 
 
 
 
Loan/lease interest rate swaps
$
20,081

 
$

 
$
20,081

Commodity swaps and options
4,060

 

 
4,060

Foreign currency forward contracts
14

 

 
14

Total derivatives
24,155

 

 
24,155

Repurchase agreements
1,308,257

 

 
1,308,257

Total
$
1,332,412

 
$

 
$
1,332,412



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Table of Contents

 
 
 
Gross Amounts Not Offset
 
 
 
Net Amount
Recognized
 
Financial
Instruments
 
Collateral
 
Net
Amount
June 30, 2019
 
 
 
 
 
 
 
Financial assets:
 
 
 
 
 
 
 
Derivatives:
 
 
 
 
 
 
 
Counterparty A
$
104

 
$
(104
)
 
$

 
$

Counterparty B
3,937

 
(3,937
)
 

 

Counterparty C
16

 
(16
)
 

 

Other counterparties
6,600

 
(6,469
)
 

 
131

Total derivatives
10,657

 
(10,526
)
 

 
131

Resell agreements
10,193

 

 
(10,193
)
 

Total
$
20,850

 
$
(10,526
)
 
$
(10,193
)
 
$
131

Financial liabilities:
 
 
 
 
 
 
 
Derivatives:
 
 
 
 
 
 
 
Counterparty A
$
5,706

 
$
(104
)
 
$
(5,602
)
 
$

Counterparty B
7,224

 
(3,937
)
 
(3,287
)
 

Counterparty C
184

 
(16
)
 
(168
)
 

Other counterparties
11,041

 
(6,469
)
 
(4,493
)
 
79

Total derivatives
24,155

 
(10,526
)
 
(13,550
)
 
79

Repurchase agreements
1,308,257

 

 
(1,308,257
)
 

Total
$
1,332,412

 
$
(10,526
)
 
$
(1,321,807
)
 
$
79


Information about financial instruments that are eligible for offset in the consolidated balance sheet as of December 31, 2018 is presented in the following tables.
 
Gross Amount
Recognized
 
Gross Amount
Offset
 
Net Amount
Recognized
December 31, 2018
 
 
 
 
 
Financial assets:
 
 
 
 
 
Derivatives:
 
 
 
 
 
Loan/lease interest rate swaps and caps
$
3,100

 
$

 
$
3,100

Commodity swaps and options
24,749

 

 
24,749

Foreign currency forward contracts

 

 

Total derivatives
27,849

 

 
27,849

Resell agreements
11,642

 

 
11,642

Total
$
39,491

 
$

 
$
39,491

Financial liabilities:
 
 
 
 
 
Derivatives:
 
 
 
 
 
Loan/lease interest rate swaps
$
9,120

 
$

 
$
9,120

Commodity swaps and options
1,918

 

 
1,918

Foreign currency forward contracts
147

 

 
147

Total derivatives
11,185

 

 
11,185

Repurchase agreements
1,360,298

 

 
1,360,298

Total
$
1,371,483

 
$

 
$
1,371,483



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Table of Contents

 
 
 
Gross Amounts Not Offset
 
 
 
Net Amount
Recognized
 
Financial
Instruments
 
Collateral
 
Net
Amount
December 31, 2018
 
 
 
 
 
 
 
Financial assets:
 
 
 
 
 
 
 
Derivatives:
 
 
 
 
 
 
 
Counterparty A
$
598

 
$
(598
)
 
$

 
$

Counterparty B
7,255

 
(3,380
)
 
(3,875
)
 

Counterparty C
81

 
(81
)
 

 

Other counterparties
19,915

 
(2,084
)
 
(17,776
)
 
55

Total derivatives
27,849

 
(6,143
)
 
(21,651
)
 
55

Resell agreements
11,642

 

 
(11,642
)
 

Total
$
39,491

 
$
(6,143
)
 
$
(33,293
)
 
$
55

Financial liabilities:
 
 
 
 
 
 
 
Derivatives:
 
 
 
 
 
 
 
Counterparty A
$
4,293

 
$
(598
)
 
$
(3,651
)
 
$
44

Counterparty B
3,380

 
(3,380
)
 

 

Counterparty C
326

 
(81
)
 
(245
)
 

Other counterparties
3,186

 
(2,084
)
 
(725
)
 
377

Total derivatives
11,185

 
(6,143
)
 
(4,621
)
 
421

Repurchase agreements
1,360,298

 

 
(1,360,298
)
 

Total
$
1,371,483

 
$
(6,143
)
 
$
(1,364,919
)
 
$
421


Repurchase Agreements. We utilize securities sold under agreements to repurchase to facilitate the needs of our customers and to facilitate secured short-term funding needs. Securities sold under agreements to repurchase are stated at the amount of cash received in connection with the transaction. We monitor collateral levels on a continuous basis. We may be required to provide additional collateral based on the fair value of the underlying securities. Securities pledged as collateral under repurchase agreements are maintained with our safekeeping agents.
The remaining contractual maturity of repurchase agreements in the consolidated balance sheets as of June 30, 2019 and December 31, 2018 is presented in the following tables.
 
Remaining Contractual Maturity of the Agreements
 
Overnight and Continuous
 
Up to 30 Days
 
30-90 Days
 
Greater than 90 Days
 
Total
June 30, 2019
 
 
 
 
 
 
 
 
 
Repurchase agreements:
 
 
 
 
 
 
 
 
 
U.S. Treasury
$
946,724

 
$

 
$

 
$

 
$
946,724

Residential mortgage-backed securities
361,533

 

 

 

 
361,533

Total borrowings
$
1,308,257

 
$

 
$

 
$

 
$
1,308,257

Gross amount of recognized liabilities for repurchase agreements
 
$
1,308,257

Amounts related to agreements not included in offsetting disclosures above
 
$

 
 
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
Repurchase agreements:
 
 
 
 
 
 
 
 
 
U.S. Treasury
$
1,334,063

 
$

 
$

 
$

 
$
1,334,063

Residential mortgage-backed securities
26,235

 

 

 

 
26,235

Total borrowings
$
1,360,298

 
$

 
$

 
$

 
$
1,360,298

Gross amount of recognized liabilities for repurchase agreements
 
$
1,360,298

Amounts related to agreements not included in offsetting disclosures above
 
$



27

Table of Contents

Note 10 - Stock-Based Compensation
A combined summary of activity in our active stock plans is presented in the table. Performance stock units outstanding are presented assuming attainment of the maximum payout rate as set forth by the performance criteria. As of June 30, 2019, there were 1,265,480 shares remaining available for grant for future stock-based compensation awards.
 
 
Director Deferred
Stock Units
Outstanding
 
Non-Vested Stock
Awards/Stock Units
Outstanding
 
Performance Stock Units Outstanding
 
Stock Options
Outstanding
 
 
Number of Units
 
Weighted-
Average
Fair Value
at Grant
 
Number
of Shares/Units
 
Weighted-
Average
Fair Value
at Grant
 
Number of Units
 
Weighted-
Average
Fair Value
at Grant
 
Number
of Shares
 
Weighted-
Average
Exercise
Price
Balance, January 1, 2019
 
48,910

 
$
71.14

 
383,797

 
$
85.59

 
125,809

 
$
82.55

 
2,352,008

 
$
63.55

Authorized
 

 

 

 

 

 

 

 

Granted
 
7,592

 
102.70

 
1,957

 
91.96

 

 

 

 

Exercised/vested
 

 

 
(17,800
)
 
65.11

 

 

 
(136,100
)
 
57.61

Forfeited/expired
 

 

 
(3,877
)
 
90.10

 

 

 
(6,875
)
 
65.11

Balance, June 30, 2019
 
56,502

 
$
75.38

 
364,077

 
$
86.58

 
125,809

 
$
82.55

 
2,209,033

 
$
63.91


Shares issued in connection with stock compensation awards are issued from available treasury shares. If no treasury shares are available, new shares are issued from available authorized shares. Shares issued in connection with stock compensation awards along with other related information were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
New shares issued from available authorized shares

 

 

 

Issued from available treasury stock
53,035

 
110,489

 
153,900

 
428,599

Total
53,035

 
110,489

 
153,900

 
428,599

 
 
 
 
 
 
 
 
Proceeds from stock option exercises
$
2,956

 
$
6,283

 
$
7,841

 
$
25,448


Stock-based compensation expense is recognized ratably over the requisite service period for all awards. For most stock option awards, the service period generally matches the vesting period. For stock options granted to certain executive officers and for non-vested stock units granted to all participants, the service period does not extend past the date the participant reaches 65 years of age. Deferred stock units granted to non-employee directors generally have immediate vesting and the related expense is fully recognized on the date of grant. For performance stock units, the service period generally matches the three-year performance period specified by the award, however, the service period does not extend past the date the participant reaches 65 years of age. Expense recognized each period is dependent upon our estimate of the number of shares that will ultimately be issued.
Stock-based compensation expense and the related income tax benefit is presented in the following table.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Stock options
$
379

 
$
1,019

 
$
761

 
$
2,104

Non-vested stock awards/stock units
2,056

 
1,371

 
4,191

 
2,839

Director deferred stock units
780

 
720

 
780

 
720

Performance stock units
1,149

 
475

 
2,286

 
1,097

Total
$
4,364

 
$
3,585

 
$
8,018

 
$
6,760

Income tax benefit
$
732

 
$
753

 
$
1,316

 
$
1,420


Unrecognized stock-based compensation expense at June 30, 2019 is presented in the table below. Unrecognized stock-based compensation expense related to performance stock units is presented assuming attainment of the maximum payout rate as set forth by the performance criteria.
Stock options
$
465

Non-vested stock awards/stock units
13,441

Performance stock units
4,241

Total
$
18,147



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Table of Contents

Note 11 - Earnings Per Common Share
Earnings per common share is computed using the two-class method as more fully described in our 2018 Form 10-K. The following table presents a reconciliation of net income available to common shareholders, net earnings allocated to common stock and the number of shares used in the calculation of basic and diluted earnings per common share.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Net income
$
111,586

 
$
111,341

 
$
228,082

 
$
217,821

Less: Preferred stock dividends
2,015

 
2,015

 
4,031

 
4,031

Net income available to common shareholders
109,571

 
109,326

 
224,051

 
213,790

Less: Earnings allocated to participating securities
906

 
726

 
1,886

 
1,431

Net earnings allocated to common stock
$
108,665

 
$
108,600

 
$
222,165

 
$
212,359

 
 
 
 
 
 
 
 
Distributed earnings allocated to common stock
$
44,461

 
$
42,791

 
$
86,699

 
$
79,096

Undistributed earnings allocated to common stock
64,204

 
65,809

 
135,466

 
133,263

Net earnings allocated to common stock
$
108,665

 
$
108,600

 
$
222,165

 
$
212,359

 
 
 
 
 
 
 
 
Weighted-average shares outstanding for basic earnings per common share
62,789,182

 
63,836,651

 
62,898,514

 
63,743,442

Dilutive effect of stock compensation
764,916

 
1,062,637

 
791,513

 
1,043,712

Weighted-average shares outstanding for diluted earnings per common share
63,554,098

 
64,899,288

 
63,690,027

 
64,787,154


Note 12 - Defined Benefit Plans
The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Expected return on plan assets, net of expenses
$
(2,693
)
 
$
(2,979
)
 
$
(5,386
)
 
$
(5,958
)
Interest cost on projected benefit obligation
1,618

 
1,474

 
3,236

 
2,949

Net amortization and deferral
1,406

 
1,251

 
2,812

 
2,501

Net periodic expense (benefit)
$
331

 
$
(254
)
 
$
662

 
$
(508
)

Our non-qualified defined benefit pension plan is not funded. No contributions to the qualified defined benefit pension plan were made during the six months ended June 30, 2019. We do not expect to make any contributions to the qualified defined benefit plan during the remainder of 2019.
Note 13 - Income Taxes
Income tax expense was as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Current income tax expense (benefit)
$
14,505

 
$
1,361

 
$
29,504

 
$
2,107

Deferred income tax expense (benefit)
369

 
12,475

 
(675
)
 
22,886

Income tax expense, as reported
$
14,874

 
$
13,836

 
$
28,829

 
$
24,993

 
 
 
 
 
 
 
 
Effective tax rate
11.8
%
 
11.1
%
 
11.2
%
 
10.3
%

We had a net deferred tax liability totaling $54.8 million at June 30, 2019 and a net deferred tax asset totaling $19.8 million at December 31, 2018. The change in net deferred taxes was primarily related to unrealized gains on available-for-sale securities during the six months ended June 30, 2019. No valuation allowance for deferred tax assets was recorded at June 30, 2019 as management believes it is more likely than not that all of the deferred tax assets will be realized against deferred tax liabilities and projected future taxable income.

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The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during the comparable periods primarily due to the effect of tax-exempt income from loans, securities and life insurance policies and the income tax effects associated with stock-based compensation. There were no unrecognized tax benefits during any of the reported periods. Interest and/or penalties related to income taxes are reported as a component of income tax expense. Such amounts were not significant during the reported periods.
We file income tax returns in the U.S. federal jurisdiction. We are no longer subject to U.S. federal income tax examinations by tax authorities for years before 2015.
Note 14 - Other Comprehensive Income (Loss)
The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the following table. Reclassification adjustments related to securities available for sale are included in net gain (loss) on securities transactions in the accompanying consolidated statements of income. Reclassification adjustments related to defined-benefit post-retirement benefit plans are included in the computation of net periodic pension expense (see Note 12 – Defined Benefit Plans).
 
Three Months Ended 
 June 30, 2019
 
Three Months Ended 
 June 30, 2018
 
Before Tax
Amount
 
Tax  Expense,
(Benefit)
 
Net of  Tax
Amount
 
Before Tax
Amount
 
Tax  Expense,
(Benefit)
 
Net of  Tax
Amount
Securities available for sale and transferred securities:
 
 
 
 
 
 
 
 
 
 
 
Change in net unrealized gain/loss during the period
$
158,140

 
$
33,209

 
$
124,931

 
$
(11,884
)
 
$
(2,496
)
 
$
(9,388
)
Change in net unrealized gain on securities transferred to held to maturity
(308
)
 
(65
)
 
(243
)
 
(2,041
)
 
(429
)
 
(1,612
)
Reclassification adjustment for net (gains) losses included in net income
(169
)
 
(35
)
 
(134
)
 
60

 
13

 
47

Total securities available for sale and transferred securities
157,663

 
33,109

 
124,554

 
(13,865
)
 
(2,912
)
 
(10,953
)
Defined-benefit post-retirement benefit plans:
 
 
 
 
 
 
 
 
 
 
 
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)
1,406

 
296

 
1,110

 
1,251

 
263

 
988

Total defined-benefit post-retirement benefit plans
1,406

 
296

 
1,110

 
1,251

 
263

 
988

Total other comprehensive income (loss)
$
159,069

 
$
33,405

 
$
125,664

 
$
(12,614
)
 
$
(2,649
)
 
$
(9,965
)
 
Six Months Ended 
 June 30, 2019
 
Six Months Ended 
 June 30, 2018
 
Before Tax
Amount
 
Tax  Expense,
(Benefit)
 
Net of  Tax
Amount
 
Before Tax
Amount
 
Tax  Expense,
(Benefit)
 
Net of  Tax
Amount
Securities available for sale and transferred securities:
 
 
 
 
 
 
 
 
 
 
 
Change in net unrealized gain/loss during the period
$
356,286

 
$
74,820

 
$
281,466

 
$
(190,788
)
 
$
(40,066
)
 
$
(150,722
)
Change in net unrealized gain on securities transferred to held to maturity
(652
)
 
(137
)
 
(515
)
 
(4,660
)
 
(979
)
 
(3,681
)
Reclassification adjustment for net (gains) losses included in net income
(169
)
 
(35
)
 
(134
)
 
79

 
17

 
62

Total securities available for sale and transferred securities
355,465

 
74,648

 
280,817

 
(195,369
)
 
(41,028
)
 
(154,341
)
Defined-benefit post-retirement benefit plans:
 
 
 
 
 
 
 
 
 
 
 
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)
2,812

 
591

 
2,221

 
2,501

 
526

 
1,975

Total defined-benefit post-retirement benefit plans
2,812

 
591

 
2,221

 
2,501

 
526

 
1,975

Total other comprehensive income (loss)
$
358,277

 
$
75,239

 
$
283,038

 
$
(192,868
)
 
$
(40,502
)
 
$
(152,366
)


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Activity in accumulated other comprehensive income (loss), net of tax, was as follows:
 
Securities
Available
For Sale
 
Defined
Benefit
Plans
 
Accumulated
Other
Comprehensive
Income
Balance January 1, 2019
$
(16,103
)
 
$
(47,497
)
 
$
(63,600
)
Other comprehensive income (loss) before reclassifications
280,951

 

 
280,951

Reclassification of amounts included in net income
(134
)
 
2,221

 
2,087

Net other comprehensive income (loss) during period
280,817

 
2,221

 
283,038

Balance at June 30, 2019
$
264,714

 
$
(45,276
)
 
$
219,438

 
 
 
 
 
 
Balance January 1, 2018
$
117,230

 
$
(37,718
)
 
$
79,512

Other comprehensive income (loss) before reclassifications
(154,403
)
 

 
(154,403
)
Reclassification of amounts included in net income
62

 
1,975

 
2,037

Net other comprehensive income (loss) during period
(154,341
)
 
1,975

 
(152,366
)
Reclassification of certain income tax effects related to the change in the U.S. statutory federal income tax rate under the Tax Cuts and Jobs Act to retained earnings
17,557

 
(8,022
)
 
9,535

Balance at June 30, 2018
$
(19,554
)
 
$
(43,765
)
 
$
(63,319
)

Note 15 – Operating Segments
We are managed under a matrix organizational structure whereby our two primary operating segments, Banking and Frost Wealth Advisors, overlap a regional reporting structure. See our 2018 Form 10-K for additional information regarding our operating segments. Summarized operating results by segment were as follows:
 
Banking
 
Frost  Wealth
Advisors
 
Non-Banks
 
Consolidated
Revenues from (expenses to) external customers:
 
 
 
 
 
 
 
Three months ended:
 
 
 
 
 
 
 
June 30, 2019
$
302,747

 
$
36,164

 
$
(2,842
)
 
$
336,069

June 30, 2018
290,433

 
34,526

 
(2,623
)
 
322,336

Six months ended:
 
 
 
 
 
 
 
June 30, 2019
$
611,360

 
$
73,515

 
$
(5,552
)
 
$
679,323

June 30, 2018
578,994

 
69,607

 
(5,072
)
 
643,529

Net income (loss):
 
 
 
 
 
 
 
Three months ended:
 
 
 
 
 
 
 
June 30, 2019
$
110,893

 
$
4,897

 
$
(4,204
)
 
$
111,586

June 30, 2018
109,276

 
5,901

 
(3,836
)
 
111,341

Six months ended:
 
 
 
 
 
 
 
June 30, 2019
$
223,810

 
$
11,297

 
$
(7,025
)
 
$
228,082

June 30, 2018
212,917

 
11,535

 
(6,631
)
 
217,821



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Note 16 – Fair Value Measurements
The fair value of an asset or liability is the price that would be received to sell that asset or paid to transfer that liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 820 establishes a three-level fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See our 2018 Form 10-K for additional information regarding the fair value hierarchy and a description of our valuation techniques.
Financial Assets and Financial Liabilities. The table below summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of June 30, 2019 and December 31, 2018, segregated by the level of the valuation inputs within the fair value hierarchy of ASC Topic 820 utilized to measure fair value.
 
Level 1
Inputs
 
Level 2
Inputs
 
Level 3
Inputs
 
Total Fair
Value
June 30, 2019
 
 
 
 
 
 
 
Securities available for sale:
 
 
 
 
 
 
 
U.S. Treasury
$
2,920,720

 
$

 
$

 
$
2,920,720

Residential mortgage-backed securities

 
2,247,712

 

 
2,247,712

States and political subdivisions

 
7,068,301

 

 
7,068,301

Other

 
42,780

 

 
42,780

Trading account securities:
 
 
 
 
 
 
 
U.S. Treasury
22,642

 

 

 
22,642

States and political subdivisions

 
2,840

 

 
2,840

Derivative assets:
 
 
 
 
 
 
 
Interest rate swaps, caps and floors

 
45,287

 

 
45,287

Commodity swaps and options

 
13,908

 

 
13,908

Foreign currency forward contracts
27

 

 

 
27

Derivative liabilities:
 
 
 
 
 
 
 
Interest rate swaps, caps and floors

 
21,285

 

 
21,285

Commodity swaps and options

 
13,490

 

 
13,490

Foreign currency forward contracts
14

 

 

 
14

December 31, 2018
 
 
 
 
 
 
 
Securities available for sale:
 
 
 
 
 
 
 
U.S. Treasury
$
3,427,689

 
$

 
$

 
$
3,427,689

Residential mortgage-backed securities

 
829,740

 

 
829,740

States and political subdivisions

 
7,087,202

 

 
7,087,202

Other

 
42,690

 

 
42,690

Trading account securities:
 
 
 
 
 
 
 
U.S. Treasury
21,928

 

 

 
21,928

States and political subdivisions

 
2,158

 

 
2,158

Derivative assets:
 
 
 
 
 
 
 
Interest rate swaps, caps and floors

 
19,806

 

 
19,806

Commodity swaps and options

 
26,768

 

 
26,768

Foreign currency forward contracts
193

 

 

 
193

Derivative liabilities:
 
 
 
 
 
 
 
Interest rate swaps, caps and floors

 
18,520

 

 
18,520

Commodity swaps and options

 
26,320

 

 
26,320

Foreign currency forward contracts
147

 

 

 
147



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Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Financial assets measured at fair value on a non-recurring basis during the reported periods include certain impaired loans reported at the fair value of the underlying collateral if repayment is expected solely from the collateral. The following table presents impaired loans that were remeasured and reported at fair value through a specific valuation allowance allocation of the allowance for loan losses based upon the fair value of the underlying collateral during the reported periods.
 
Six Months Ended 
 June 30, 2019
 
Six Months Ended 
 June 30, 2018
 
Level 2
 
Level 3
 
Level 2
 
Level 3
Carrying value of impaired loans before allocations
$
2,161

 
$
33,839

 
$
14,359

 
$
52,048

Specific valuation allowance (allocations) reversals of prior allocations
1,179

 
(3,623
)
 
(799
)
 
(1,149
)
Fair value
$
3,340

 
$
30,216

 
$
13,560

 
$
50,899


Non-Financial Assets and Non-Financial Liabilities. We do not have any non-financial assets or non-financial liabilities measured at fair value on a recurring basis. Non-financial assets measured at fair value on a non-recurring basis during the reported periods include certain foreclosed assets which, upon initial recognition, were remeasured and reported at fair value through a charge-off to the allowance for loan losses and certain foreclosed assets which, subsequent to their initial recognition, were remeasured at fair value through a write-down included in other non-interest expense. The following table presents foreclosed assets that were remeasured and reported at fair value during the reported periods:
 
Six Months Ended 
 June 30,
 
2019
 
2018
Foreclosed assets remeasured at initial recognition:
 
 
 
Carrying value of foreclosed assets prior to remeasurement
$
616

 
$
2,656

Charge-offs recognized in the allowance for loan losses
(50
)
 

Fair value
$
566

 
$
2,656

Foreclosed assets remeasured subsequent to initial recognition:
 
 
 
Carrying value of foreclosed assets prior to remeasurement
$

 
$
1,823

Write-downs included in other non-interest expense

 
(473
)
Fair value
$

 
$
1,350


Financial Instruments Reported at Amortized Cost. The estimated fair values of financial instruments that are reported at amortized cost in our consolidated balance sheets, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value, were as follows:
 
June 30, 2019
 
December 31, 2018
 
Carrying
Amount
 
Estimated
Fair Value
 
Carrying
Amount
 
Estimated
Fair Value
Financial assets:
 
 
 
 
 
 
 
Level 2 inputs:
 
 
 
 
 
 
 
Cash and cash equivalents
$
1,945,410

 
$
1,945,410

 
$
3,955,779

 
$
3,955,779

Securities held to maturity
1,035,299

 
1,061,978

 
1,106,057

 
1,116,953

Cash surrender value of life insurance policies
185,303

 
185,303

 
183,473

 
183,473

Accrued interest receivable
188,907

 
188,907

 
188,989

 
188,989

Level 3 inputs:
 
 
 
 
 
 
 
Loans, net
14,324,220

 
14,345,627

 
13,967,601

 
13,933,239

Financial liabilities:
 
 
 
 
 
 
 
Level 2 inputs:
 
 
 
 
 
 
 
Deposits
25,985,023

 
25,985,025

 
27,149,204

 
27,143,572

Federal funds purchased and repurchase agreements
1,319,507

 
1,319,507

 
1,367,548

 
1,367,548

Junior subordinated deferrable interest debentures
136,270

 
137,115

 
136,242

 
137,115

Subordinated notes payable and other borrowings
98,786

 
103,625

 
98,708

 
98,458

Accrued interest payable
10,295

 
10,295

 
7,394

 
7,394



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Under ASC Topic 825, entities may choose to measure eligible financial instruments at fair value at specified election dates. The fair value measurement option (i) may be applied instrument by instrument, with certain exceptions, (ii) is generally irrevocable and (iii) is applied only to entire instruments and not to portions of instruments. Unrealized gains and losses on items for which the fair value measurement option has been elected must be reported in earnings at each subsequent reporting date. During the reported periods, we had no financial instruments measured at fair value under the fair value measurement option.
Note 17 - Accounting Standards Updates
Information about certain recently issued accounting standards updates is presented below. Also refer to Note 20 - Accounting Standards Updates in our 2018 Form 10-K for additional information related to previously issued accounting standards updates.
ASU 2016-02, “Leases (Topic 842).” ASU 2016-02, among other things, requires lessees to recognize a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis; and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. We adopted ASU 2016-02, along with several other subsequent codification updates related to lease accounting, as of January 1, 2019. See Note 1 - Significant Accounting Policies for additional information.
ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts and requires enhanced disclosures related to the significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. In addition, ASU 2016-13 amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. In April 2019, ASU 2019-04, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments,” was issued to address certain codification improvements and to provide certain accounting policy electives related to accrued interest as well as disclosure related to credit losses, among other things. In May 2019, ASU 2019-05, “Financial Instruments—Credit Losses (Topic 326): Targeted Transition Relief,” was issued to provide transition relief in connection with the adoption of ASU 2016-03 whereby entities would have the option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis. ASU 2016-13, as updated, will be effective on January 1, 2020. We are currently evaluating the potential impact of ASU 2016-13 on our financial statements. In that regard, we have formed a cross-functional working group, under the direction of our Chief Financial Officer and our Chief Credit Officer. The working group is comprised of individuals from various functional areas including credit, risk management, finance and information technology, among others. We are currently working through our implementation plan which includes assessment and documentation of processes, internal controls and data sources; model development, documentation and validation; and system configuration, among other things. We are also in the process of implementing a third-party vendor solution to assist us in the application of ASU 2016-13. The adoption of ASU 2016-13 could result in an increase in the allowance for loan losses as a result of changing from an “incurred loss” model, which encompasses allowances for current known and inherent losses within the portfolio, to an “expected loss” model, which encompasses allowances for losses expected to be incurred over the life of the portfolio. Furthermore, ASU 2016-13 will necessitate that we establish an allowance for expected credit losses for certain debt securities and other financial assets. While we are currently unable to reasonably estimate the impact of adopting ASU 2016-13, we expect that the impact of adoption will be significantly influenced by the composition, characteristics and quality of our loan and securities portfolios as well as the prevailing economic conditions and forecasts as of the adoption date.
ASU 2017-08, “Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) - Premium Amortization on Purchased Callable Debt Securities.” ASU 2017-08 shortens the amortization period for certain callable debt securities held at a premium to require such premiums to be amortized to the earliest call date unless applicable guidance related to certain pools of securities is applied to consider estimated prepayments. Under prior guidance, entities were generally required to amortize premiums on individual, non-pooled callable debt securities as a yield adjustment over the contractual life of the security. ASU 2017-08 did not change the accounting for callable debt securities held at a discount. We adopted ASU 2017-08 effective January 1, 2019 and recognized a cumulative effect adjustment reducing retained earnings by $12.6 million. See Note 1 - Significant Accounting Policies.
ASU 2017-12, “Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities.” ASU 2017-12 amends the hedge accounting recognition and presentation requirements in ASC 815 to improve the transparency and understandability of information conveyed to financial statement users about an entity’s risk management activities to better align the entity’s financial reporting for hedging relationships with those risk management activities and to reduce the complexity of and simplify the application of hedge accounting. ASU 2017-12 became effective for us on January 1, 2019 and did not have a significant impact on our financial statements. In April 2019, ASU 2019-04 was issued to clarify certain aspects of accounting for hedging activities addressed by ASU 2017-12, among other things.

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ASU 2018-16, “Derivatives and Hedging (Topic 815) - Inclusion of the Secured Overnight Financing Rate (“SOFR”) Overnight Index Swap (“OIS”) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes.” The amendments in this update permit use of the OIS rate based on SOFR as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815 in addition to the interest rates on direct U.S. Treasury obligations, the LIBOR swap rate, the OIS rate based on the Fed Funds Effective Rate and the Securities Industry and Financial Markets Association (“SIFMA”) Municipal Swap Rate. ASU 2018-16 became effective for us on January 1, 2019 and did not have a significant impact on our financial statements.

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Table of Contents

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
Financial Review
Cullen/Frost Bankers, Inc.
The following discussion should be read in conjunction with our consolidated financial statements, and notes thereto, for the year ended December 31, 2018, and the other information included in the 2018 Form 10-K. Operating results for the three and six months ended June 30, 2019 are not necessarily indicative of the results for the year ending December 31, 2019 or any future period.
Dollar amounts in tables are stated in thousands, except for per share amounts.
Forward-Looking Statements and Factors that Could Affect Future Results
Certain statements contained in this Quarterly Report on Form 10-Q that are not statements of historical fact constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the “Act”), notwithstanding that such statements are not specifically identified as such. In addition, certain statements may be contained in our future filings with the SEC, in press releases, and in oral and written statements made by us or with our approval that are not statements of historical fact and constitute forward-looking statements within the meaning of the Act. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations of Cullen/Frost or its management or Board of Directors, including those relating to products, services or operations; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as “believes”, “anticipates”, “expects”, “intends”, “targeted”, “continue”, “remain”, “will”, “should”, “may” and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.
Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. Factors that could cause actual results to differ from those discussed in the forward-looking statements include, but are not limited to:
Local, regional, national and international economic conditions and the impact they may have on us and our customers and our assessment of that impact.
Volatility and disruption in national and international financial and commodity markets.
Government intervention in the U.S. financial system.
Changes in the mix of loan geographies, sectors and types or the level of non-performing assets and charge-offs.
Changes in estimates of future reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements.
The effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board.
Inflation, interest rate, securities market and monetary fluctuations.
The effect of changes in laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) with which we and our subsidiaries must comply.
The soundness of other financial institutions.
Political instability.
Impairment of our goodwill or other intangible assets.
Acts of God or of war or terrorism.
The timely development and acceptance of new products and services and perceived overall value of these products and services by users.
Changes in consumer spending, borrowings and savings habits.
Changes in the financial performance and/or condition of our borrowers.
Technological changes.
The cost and effects of failure, interruption, or breach of security of our systems.
Acquisitions and integration of acquired businesses.
Our ability to increase market share and control expenses.
Our ability to attract and retain qualified employees.
Changes in the competitive environment in our markets and among banking organizations and other financial service providers.
The effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters.
Changes in the reliability of our vendors, internal control systems or information systems.

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Table of Contents

Changes in our liquidity position.
Changes in our organization, compensation and benefit plans.
The costs and effects of legal and regulatory developments, the resolution of legal proceedings or regulatory or other governmental inquiries, the results of regulatory examinations or reviews and the ability to obtain required regulatory approvals.
Greater than expected costs or difficulties related to the integration of new products and lines of business.
Our success at managing the risks involved in the foregoing items.
Forward-looking statements speak only as of the date on which such statements are made. We do not undertake any obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made, or to reflect the occurrence of unanticipated events.
Application of Critical Accounting Policies and Accounting Estimates
We follow accounting and reporting policies that conform, in all material respects, to accounting principles generally accepted in the United States and to general practices within the financial services industry. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. While we base estimates on historical experience, current information and other factors deemed to be relevant, actual results could differ from those estimates.
We consider accounting estimates to be critical to reported financial results if (i) the accounting estimate requires management to make assumptions about matters that are highly uncertain and (ii) different estimates that management reasonably could have used for the accounting estimate in the current period, or changes in the accounting estimate that are reasonably likely to occur from period to period, could have a material impact on our financial statements. Accounting policies related to the allowance for loan losses are considered to be critical as these policies involve considerable subjective judgment and estimation by management.
For additional information regarding critical accounting policies, refer to Note 1 - Summary of Significant Accounting Policies and Note 3 - Loans in the notes to consolidated financial statements and the sections captioned “Application of Critical Accounting Policies and Accounting Estimates” and “Allowance for Loan Losses” in Management’s Discussion and Analysis of Financial Condition and Results of Operations included in the 2018 Form 10-K. There have been no significant changes in our application of critical accounting policies related to the allowance for loan losses since December 31, 2018.
Overview
A discussion of our results of operations is presented below. Certain reclassifications have been made to make prior periods comparable. Taxable-equivalent adjustments are the result of increasing income from tax-free loans and investments by an amount equal to the taxes that would be paid if the income were fully taxable based on a 21% federal tax rate, thus making tax-exempt yields comparable to taxable asset yields.

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Table of Contents

Results of Operations
Net income available to common shareholders totaled $109.6 million, or $1.72 per diluted common share, and $224.1 million, or $3.51 per diluted common share, for the three and six months ended June 30, 2019 compared to $109.3 million, or $1.68 per diluted common share, and $213.8 million, or $3.30 per diluted common share, for the three and six months ended June 30, 2018.
Selected data for the comparable periods was as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Taxable-equivalent net interest income
$
277,751

 
$
260,531

 
$
548,930

 
$
513,067

Taxable-equivalent adjustment
24,320

 
23,261

 
49,030

 
46,049

Net interest income
253,431

 
237,270

 
499,900

 
467,018

Provision for loan losses
6,400

 
8,251

 
17,403

 
15,196

Net interest income after provision for loan losses
247,031

 
229,019

 
482,497

 
451,822

Non-interest income
82,638

 
85,066

 
179,423

 
176,511

Non-interest expense
203,209

 
188,908

 
405,009

 
385,519

Income before income taxes
126,460

 
125,177

 
256,911

 
242,814

Income taxes
14,874

 
13,836

 
28,829

 
24,993

Net income
111,586

 
111,341

 
228,082

 
217,821

Preferred stock dividends
2,015

 
2,015

 
4,031

 
4,031

Net income available to common shareholders
$
109,571

 
$
109,326

 
$
224,051

 
$
213,790

Earnings per common share – basic
$
1.73

 
$
1.70

 
$
3.53

 
$
3.33

Earnings per common share – diluted
1.72

 
1.68

 
3.51

 
3.30

Dividends per common share
0.71

 
0.67

 
1.38

 
1.24

Return on average assets
1.40
%
 
1.43
%
 
1.44
%
 
1.39
%
Return on average common equity
12.60

 
14.03

 
13.32

 
13.83

Average shareholders’ equity to average assets
11.53

 
10.63

 
11.27

 
10.55

Net income available to common shareholders increased $245 thousand, or 0.2%, for the three months ended June 30, 2019 and increased $10.3 million, or 4.8%, for the six months ended June 30, 2019 compared to the same periods in 2018. The increase during the three months ended June 30, 2019 was primarily the result of a $16.2 million increase in net interest income and a $1.9 million decrease in the provision for loan losses partly offset by a $14.3 million increase in non-interest expense, a $2.4 million decrease in non-interest income and a $1.0 million increase in income tax expense. The increase during the six months ended June 30, 2019 was primarily the result of a $32.9 million increase in net interest income and a $2.9 million increase in non-interest income partly offset by a $19.5 million increase in non-interest expense, a $3.8 million increase in income tax expense and a $2.2 million increase in the provision for loan losses.
Details of the changes in the various components of net income are further discussed below.
Net Interest Income
Net interest income is the difference between interest income on earning assets, such as loans and securities, and interest expense on liabilities, such as deposits and borrowings, which are used to fund those assets. Net interest income is our largest source of revenue, representing 73.6% of total revenue during the first six months of 2019. Net interest margin is the ratio of taxable-equivalent net interest income to average earning assets for the period. The level of interest rates and the volume and mix of earning assets and interest-bearing liabilities impact net interest income and net interest margin.
The Federal Reserve influences the general market rates of interest, including the deposit and loan rates offered by many financial institutions. Our loan portfolio is significantly affected by changes in the prime interest rate. The prime rate began 2018 at 4.50% and remained at that level until March 2018, when it increased 25 basis points to 4.75%. During the remainder of 2018, the prime rate increased an additional 75 basis points (25 basis points in each of June, September and December) to end 2018 at 5.50%. The prime rate did not change during the first six months of 2019. Our loan portfolio is also impacted by changes in the London Interbank Offered Rate (LIBOR). At June 30, 2019, the one-month and three-month U.S. dollar LIBOR interest rates were 2.40% and 2.32%, respectively, while at June 30, 2018, the one-month and three-month U.S. dollar LIBOR interest rates were 2.09% and 2.34%, respectively. The effective federal funds rate, which is the cost of immediately available overnight funds, began 2018 at 1.50% and remained at that level until March 2018, when it increased 25 basis points to 1.75%. During the remainder of

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2018 the effective federal funds rate increased 75 basis points (25 basis points in each of June, September, and December) to end 2018 at 2.50%. The effective federal funds rate did not change during the first six months of 2019.
We are primarily funded by core deposits, with non-interest-bearing demand deposits historically being a significant source of funds. This lower-cost funding base is expected to have a positive impact on our net interest income and net interest margin in a rising interest rate environment. The Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”) repealed the federal prohibitions on the payment of interest on demand deposits, thereby permitting depository institutions to pay interest on business transaction and other accounts beginning July 21, 2011. To date, we have not experienced any significant additional interest costs as a result of the repeal. However, as market interest rates have increased, we have increased the interest rates we pay on most of our interest-bearing deposit products. See Item 3. Quantitative and Qualitative Disclosures About Market Risk elsewhere in this report for information about the expected impact of this legislation on our sensitivity to interest rates. Further analysis of the components of our net interest margin is presented below.
The following table presents the changes in taxable-equivalent net interest income and identifies the changes due to differences in the average volume of earning assets and interest-bearing liabilities and the changes due to changes in the average interest rate on those assets and liabilities. The changes in net interest income due to changes in both average volume and average interest rate have been allocated to the average volume change or the average interest rate change in proportion to the absolute amounts of the change in each.
 
Three Months Ended
 
Six Months Ended
 
June 30, 2019 vs. June 30, 2018
 
June 30, 2019 vs. June 30, 2018
 
Increase (Decrease) Due to Change in
 
 
 
Increase (Decrease) Due to Change in
 
 
 
 
 
 
 
 
 
Rate
 
Volume
 
Total
 
Rate
 
Volume
 
Total
Interest-bearing deposits
$
3,998

 
$
(10,087
)
 
$
(6,089
)
 
$
10,126

 
$
(19,670
)
 
$
(9,544
)
Federal funds sold and resell agreements
387

 
(261
)
 
126

 
893

 
60

 
953

Securities:
 
 
 
 
 
 
 
 
 
 
 
Taxable
4,531

 
4,605

 
9,136

 
6,768

 
6,489

 
13,257

Tax-exempt
(773
)
 
3,031

 
2,258

 
(2,341
)
 
8,740

 
6,399

Loans, net of unearned discounts
15,276

 
10,538

 
25,814

 
38,367

 
21,730

 
60,097

Total earning assets
23,419

 
7,826

 
31,245

 
53,813

 
17,349

 
71,162

Savings and interest checking

 
60

 
60

 
354

 
41

 
395

Money market deposit accounts
5,487

 
19

 
5,506

 
18,280

 
168

 
18,448

Time accounts
2,369

 
362

 
2,731

 
4,387

 
516

 
4,903

Public funds
600

 
372

 
972

 
1,487

 
572

 
2,059

Federal funds purchased and repurchase agreements
4,422

 
167

 
4,589

 
8,715

 
256

 
8,971

Junior subordinated deferrable interest debentures
166

 
1

 
167

 
522

 
1

 
523

Subordinated notes payable and other notes
(2
)
 
2

 

 
(4
)
 
4

 

Total interest-bearing liabilities
13,042

 
983

 
14,025

 
33,741

 
1,558

 
35,299

Net change
$
10,377

 
$
6,843

 
$
17,220

 
$
20,072

 
$
15,791

 
$
35,863

Taxable-equivalent net interest income for the three months ended June 30, 2019 increased $17.2 million, or 6.6%, while taxable-equivalent net interest income for the six months ended June 30, 2019 increased $35.9 million, or 7.0%, compared to the same periods in 2018. The increases in taxable-equivalent net interest income during the three and six months ended June 30, 2019 were primarily related to increases in the average yields on loans, taxable securities and interest-bearing deposits combined with increases in the average volumes of loans, tax-exempt securities and taxable securities. The impact of these items was partly offset by increases in the average rates paid on interest-bearing deposits and other borrowed funds and a decrease in the average volume of interest bearing deposits (primarily excess reserves held in an interest-bearing account at the Federal Reserve).
The average volume of interest-earning assets for the three months ended June 30, 2019 increased $467.4 million, while the average volume of interest-earning assets for the six months ended June 30, 2019 increased $211.1 million compared to the same periods in 2018. The increase in the average volume of interest-earning assets for the three months ended June 30, 2019 included an $884.9 million increase in average taxable securities, an $838.6 million increase in average loans and a $509.0 million increase in average tax-exempt securities partly offset by a $1.8 billion decrease in average interest-bearing deposits, federal funds sold and resell agreements. The increase in the average volume of interest-earning assets for the six months ended June 30, 2019 included an $874.4 million increase in average loans, a $630.6 million increase in average taxable securities and a $533.5 million

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increase in average tax-exempt securities partly offset by a $1.8 billion decrease in average interest-bearing deposits, federal funds sold and resell agreements
The taxable-equivalent net interest margin increased 21 basis points from 3.64% during the three months ended June 30, 2018 to 3.85% during the three months ended June 30, 2019 and increased 24 basis points from 3.58% during the six months ended June 30, 2018 to 3.82% during the six months ended June 30, 2019. The increases in the taxable-equivalent net interest margin during the three and six months ended June 30, 2019 were primarily related to increases in the average yields on loans; interest-bearing deposits; federal funds sold and resell agreements; and taxable securities partly offset by increases in the average cost of interest-bearing deposits and other borrowed funds and a decrease in the average yield on tax-exempt securities. The taxable-equivalent net interest margin was also positively impacted by a decrease in the relative proportion of interest-earning assets invested in lower-yielding interest-bearing deposits (primarily excess reserves held in an interest-bearing account at the Federal Reserve).
The average taxable-equivalent yield on interest-earning assets increased 40 basis points from 3.93% during the three months ended June 30, 2018 to 4.33% during the three months ended June 30, 2019 and increased 48 basis points from 3.82% during the six months ended June 30, 2018 to 4.30% during the six months ended June 30, 2019. The average taxable-equivalent yield on interest-earning assets was primarily impacted by the aforementioned changes in market interest rates and changes in the volume and relative mix of interest-earning assets.
The average taxable-equivalent yield on loans increased 55 basis points from 4.78% during the six months ended June 30, 2018 to 5.33% during the six months ended June 30, 2019. The average taxable-equivalent yield on loans was positively impacted by the increases in market interest rates discussed above. The average volume of loans for the six months ended June 30, 2019 increased $874.4 million, or 6.5%, compared to the same period in 2018. Loans made up approximately 49.2% of average interest-earning assets during the six months ended June 30, 2019 compared to 46.5% during the same period in 2018.
The average taxable-equivalent yield on securities was 3.40% during the six months ended June 30, 2019, increasing 4 basis points compared to the 3.36% during the same period in 2018. The average taxable-equivalent yield on securities during the six months ended June 30, 2019 compared to the same period in 2018 was positively impacted by increases in the average volume of tax-exempt and taxable securities and an increase in the average yield on taxable securities but was negatively impacted by a decrease in the average yield on tax-exempt securities. The average yield on taxable securities increased 30 basis points from 2.00% during the six months ended June 30, 2018 to 2.30% during the six months ended June 30, 2019. The average taxable-equivalent yield on tax-exempt securities decreased 6 basis points from 4.11% during the six months ended June 30, 2018 to 4.05% during the six months ended June 30, 2019. Tax exempt securities made up approximately 63.1% of total average securities during the six months ended June 30, 2019, compared to 64.8% during the same period in 2018. The average volume of total securities during the six months ended June 30, 2019 increased $1.2 billion, or 9.8%, compared to the same period in 2018. Securities made up approximately 44.9% of average interest-earning assets during the six months ended June 30, 2019 compared to 41.2% during the same period in 2018.
Average interest-bearing deposits, federal funds sold and resell agreements for the six months ended June 30, 2019 decreased $1.8 billion, or 51.9%, compared to the same period in 2018. Interest-bearing deposits, federal funds sold and resell agreements made up approximately 5.8% of average interest-earning assets during the six months ended June 30, 2019 compared to 12.2% during the six months ended June 30, 2018. The decrease in the average volume of interest-bearing deposits, federal funds sold and resell agreements was primarily due to a decrease in the average volume of our excess reserves held in an interest-bearing account at the Federal Reserve during the first six months of 2019 compared to the same period in 2018 as such funds were invested in higher yielding loans and securities. The volume of interest-bearing deposits, federal funds sold and resell agreements was also impacted by a decrease in the average volume of deposits during the first six months of 2019 compared to the same period in 2018. The combined average yield on interest-bearing deposits, federal funds sold and resell agreements was 2.53% during the six months ended June 30, 2019 compared to 1.73% during the same period in 2018. As discussed above, the effective federal funds rate began 2018 at 1.50% and subsequently increased 100 basis points (25 basis points in each of March, June, September and December) to end 2018 at 2.50%, where it remained through June 30, 2019.
The average rate paid on interest-bearing liabilities was 0.81% during the six months ended June 30, 2019 increasing 40 basis points from 0.41% during the same period in 2018. Average deposits decreased $195.9 million, or 0.75%, during the six months ended June 30, 2019 compared to the same period in 2018 and included a $629.5 million decrease in average non-interest bearing deposits partly offset by a $433.6 million increase in average interest-bearing deposits. The ratio of average interest-bearing deposits to total average deposits was 61.0% during the six months ended June 30, 2019 compared to 58.9% during the same period in 2018. The average cost of deposits is primarily impacted by changes in market interest rates as well as changes in the volume and relative mix of interest-bearing deposits. The average cost of interest-bearing deposits and total deposits was 0.69% and 0.42%, respectively, during the six months ended June 30, 2019 compared to 0.37% and 0.22%, respectively, during the six months ended June 30, 2018. The average cost of deposits during 2019 was impacted by increases in the interest rates we pay on

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most of our interest-bearing deposit products as a result of the aforementioned increases in market interest rates and market competition.
Our net interest spread, which represents the difference between the average rate earned on earning assets and the average rate paid on interest-bearing liabilities, was 3.49% during the six months ended June 30, 2019 compared to 3.41% during same period in 2018. The net interest spread, as well as the net interest margin, will be impacted by future changes in short-term and long-term interest rate levels, as well as the impact from the competitive environment. A discussion of the effects of changing interest rates on net interest income is set forth in Item 3. Quantitative and Qualitative Disclosures About Market Risk included elsewhere in this report.
Our hedging policies permit the use of various derivative financial instruments, including interest rate swaps, swaptions, caps and floors, to manage exposure to changes in interest rates. Details of our derivatives and hedging activities are set forth in Note 8 - Derivative Financial Instruments in the accompanying notes to consolidated financial statements included elsewhere in this report. Information regarding the impact of fluctuations in interest rates on our derivative financial instruments is set forth in Item 3. Quantitative and Qualitative Disclosures About Market Risk included elsewhere in this report.
Provision for Loan Losses
The provision for loan losses is determined by management as the amount to be added to the allowance for loan losses after net charge-offs have been deducted to bring the allowance to a level which, in management’s best estimate, is necessary to absorb inherent losses within the existing loan portfolio. The provision for loan losses totaled $6.4 million and $17.4 million for the three and six months ended June 30, 2019 compared to $8.3 million and $15.2 million for the three and six months ended June 30, 2018. See the section captioned “Allowance for Loan Losses” elsewhere in this discussion for further analysis of the provision for loan losses.
Non-Interest Income
The components of non-interest income were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Trust and investment management fees
$
30,448

 
$
29,121

 
$
62,145

 
$
58,708

Service charges on deposit accounts
21,798

 
21,142

 
42,588

 
41,985

Insurance commissions and fees
10,118

 
10,556

 
28,524

 
26,536

Interchange and debit card transaction fees
3,868

 
3,446

 
7,148

 
6,604

Other charges, commissions and fees
8,933

 
9,273

 
17,995

 
18,280

Net gain (loss) on securities transactions
169

 
(60
)
 
169

 
(79
)
Other
7,304

 
11,588

 
20,854

 
24,477

Total
$
82,638

 
$
85,066

 
$
179,423

 
$
176,511

Total non-interest income for the three months ended June 30, 2019 decreased $2.4 million, or 2.9%, while total non-interest income for the six months ended June 30, 2019 increased $2.9 million, or 1.6%, compared to the same periods in 2018, respectively. Changes in the various components of non-interest income are discussed in more detail below.
Trust and Investment Management Fees. Trust and investment management fees for the three and six months ended June 30, 2019 increased $1.3 million, or 4.6%, and $3.4 million, or 5.9%, compared to the same periods in 2018, respectively. Investment fees are the most significant component of trust and investment management fees, making up approximately 82.2% and 82.4% of total trust and investment management fees for the first six months of 2019 and 2018, respectively. Investment and other custodial account fees are generally based on the market value of assets within a trust account. Volatility in the equity and bond markets impacts the market value of trust assets and the related investment fees. The increase in trust and investment management fees during the three and six months ended June 30, 2019 compared to the same periods in 2018 was primarily the result of increases in trust investment fees (up $1.2 million and $2.7 million, respectively) due to higher average equity valuations and an increase in the number of accounts.
At June 30, 2019, trust assets, including both managed assets and custody assets, were primarily composed of equity securities (49.6% of assets), fixed income securities (36.2% of assets) and cash equivalents (8.7% of assets). The estimated fair value of these assets was $36.2 billion (including managed assets of $15.6 billion and custody assets of $20.5 billion) at June 30, 2019, compared to $33.3 billion (including managed assets of $14.7 billion and custody assets of $18.7 billion) at December 31, 2018 and $33.4 billion (including managed assets of $14.4 billion and custody assets of $19.0 billion) at June 30, 2018.

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Service Charges on Deposit Accounts. Service charges on deposit accounts for the three and six months ended June 30, 2019 increased $656 thousand, or 3.1%, and $603 thousand, or 1.4%, respectively, compared to the same periods in 2018. The increases were primarily related to increases in overdraft/insufficient funds charges on consumer and commercial accounts (up $1.1 million and $1.9 million, respectively) partly offset by decreases in commercial service charges (down $395 thousand and $1.3 million, respectively). Overdraft/insufficient funds charges totaled $10.3 million ($8.1 million consumer and $2.2 million commercial) during the three months ended June 30, 2019 compared to $9.2 million ($7.1 million consumer and $2.1 million) during the same period in 2018. Overdraft/insufficient funds charges totaled $19.9 million ($15.5 million consumer and $4.4 million commercial) during the six months ended June 30, 2019 compared to $18.0 million ($13.8 million consumer and $4.2 million commercial) during the same period in 2018. The increases in overdraft/insufficient funds charges were partly due to increased transaction volumes during the three and six months ended June 30, 2019 compared to the same periods in 2018. Overdraft/insufficient funds charges were also impacted by a change in the fee schedule during the second quarter of 2019. The decreases in commercial service charges were partly related to a higher earnings credit rate. The earnings credit rate is the value given to deposits maintained by treasury management customers. Because average market interest rates in 2019 were higher compared to 2018, deposit balances have become more valuable and are yielding a higher earnings credit rate. Earnings credits applied to customer deposit balances offset service fees that would otherwise be charged.
Insurance Commissions and Fees. Insurance commissions and fees for the three months ended June 30, 2019 decreased $438 thousand, or 4.1%, compared to the same period in 2018. The decrease was related to decreases in commission income (down $305 thousand) and contingent income (down $133 thousand). Insurance commissions and fees for the six months ended June 30, 2019 increased $2.0 million, or 7.5%, compared to the same period in 2018. The increase was related to an increase in commission income (up $2.3 million) partly offset by a decrease in contingent income (down $322 thousand). The decrease in commission income during the three months ended June 30, 2019 was primarily related to a decrease in benefit plan commissions due to fluctuations in business volumes. The increase in commission income during the six months ended June 30, 2019 was primarily related to increases in benefit plan commissions; commissions on property and casualty policies; and life insurance commissions. The increases in benefit plan commissions and property and casualty commissions were related to increased business volumes and market rates. The increase in life insurance commissions was related to increased business volumes.
Contingent income totaled $359 thousand and $3.6 million during the three and six months ended June 30, 2019, respectively, compared to $492 thousand and $3.9 million during the same periods in 2018. Contingent income primarily consists of amounts received from various property and casualty insurance carriers related to the loss performance of insurance policies previously placed. These performance related contingent payments are seasonal in nature and are mostly received during the first quarter of each year. This performance related contingent income totaled $2.7 million and $3.0 million during the six months ended June 30, 2019 and 2018, respectively. The decrease in performance related contingent income during 2019 was related to lower growth within the portfolio partly offset by the impact of improvement in the loss performance of insurance policies previously placed. Contingent income also includes amounts received from various benefit plan insurance companies related to the volume of business generated and/or the subsequent retention of such business. This benefit plan related contingent income totaled $262 thousand and $865 thousand during the three and six months ended June 30, 2019, respectively, and $313 thousand and $865 thousand during the same periods in 2018.
Interchange and Debit Card Transaction Fees. Interchange fees, or “swipe” fees, are charges that merchants pay to us and other card-issuing banks for processing electronic payment transactions. Interchange and debit card transaction fees consist of income from debit card usage, point of sale income from PIN-based debit card transactions and ATM service fees. Interchange and debit card transaction fees are reported net of related network costs. A comparison of gross and net interchange and debit card transaction fees for the reported periods is presented in the table below:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Income from debit card transactions
$
5,974

 
$
5,467

 
$
11,379

 
$
10,591

ATM service fees
1,086

 
1,016

 
2,067

 
1,963

Gross interchange and debit card transaction fees
7,060

 
6,483

 
13,446

 
12,554

Network costs
3,192

 
3,037

 
6,298

 
5,950

Net interchange and debit card transaction fees
$
3,868

 
$
3,446

 
$
7,148

 
$
6,604

The increase in interchange and debit card transaction fees during 2019, on a net basis, was primarily related to increased transaction volumes.
Federal Reserve rules applicable to financial institutions that have assets of $10 billion or more provide that the maximum permissible interchange fee for an electronic debit transaction is the sum of 21 cents per transaction and 5 basis points multiplied

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by the value of the transaction. An upward adjustment of no more than 1 cent to an issuer's debit card interchange fee is allowed if the card issuer develops and implements policies and procedures reasonably designed to achieve certain fraud-prevention standards. The Federal Reserve also has rules governing routing and exclusivity that require issuers to offer two unaffiliated networks for routing transactions on each debit or prepaid product.
Other Charges, Commissions and Fees. Other charges, commissions and fees for the three months ended June 30, 2019 decreased $340 thousand, or 3.7%, compared to the same period in 2018. The decrease was primarily related to decreases in income from capital markets advisory services (down $412 thousand) and processing fees (down $336 thousand) partly offset by increases in income from the sale of money market accounts (up $312 thousand) and letter of credit fees (up $112 thousand). Other charges, commissions and fees for the six months ended June 30, 2019 decreased $285 thousand, or 1.6%, compared to the same period in 2018. The decrease was primarily related to decreases in processing fees (down $410 thousand), income from capital markets advisory services (down $356 thousand), income from the sale of mutual funds and annuities (down $279 thousand and $204 thousand, respectively) and brokerage commissions (down $241 thousand) mostly offset by increases in income from the sale of money market accounts and life insurance (up $628 thousand and $396 thousand, respectively) and letter of credit fees (up $278 thousand).
Net Gain/Loss on Securities Transactions. During the six months ended June 30, 2019, and 2018, we sold certain available-for-sale U.S Treasury securities with amortized costs totaling $2.4 billion and $10.9 billion, respectively. We realized a net gain of $3 thousand on the 2019 sales and a net loss of $79 thousand on the 2018 sales. The sales were primarily related to securities purchased and subsequently sold in the same period of their purchase in connection with our tax planning strategies related to the Texas franchise tax. The gross proceeds from the sales of these securities outside of Texas are included in total revenues/receipts from all sources reported for Texas franchise tax purposes, which results in a reduction in the overall percentage of revenues/receipts apportioned to Texas and subjected to taxation under the Texas franchise tax.
During the second quarter of 2019, we also sold certain available-for-sale U.S. Treasury securities with an amortized cost totaling $548.9 million and certain available-for-sale municipal securities with an amortized cost totaling $310.7 million. We realized a net gain of $166 thousand on those sales. The proceeds from the sales provided short-term liquidity and were subsequently reinvested in other higher yielding securities.
Other Non-Interest Income. Other non-interest income for the three months ended June 30, 2019 decreased $4.3 million, or 37.0%, compared to the same period in 2018. The decrease during the three months ended June 30, 2019 was primarily related to decreases in sundry and other miscellaneous income (down $2.8 million), gains on the sale of foreclosed and other assets (down $837 thousand) and public finance underwriting fees (down $666 thousand). Other non-interest income for the six months ended June 30, 2019 decreased $3.6 million, or 14.8%, compared to the same period in 2018. The decrease during the six months ended June 30, 2019 was primarily related to decreases in sundry and other miscellaneous income (down $2.0 million), income from customer derivative and trading activities (down $999 thousand) and gains on the sale of foreclosed and other assets (down $726 thousand). Sundry income during the six months ended June 30, 2019 included $931 thousand related to the recovery of prior write-offs and $250 thousand related to a settlement, among other things, while sundry income for the same period in 2018 included $2.4 million related to the recovery of prior write-offs and $1.2 million related to a distribution from a private equity investment, among other things. The fluctuations in public finance underwriting fees income and income from customer derivative and trading activities during the three and six months ended June 30, 2019 were primarily related to changes in business volumes. Other non-interest income also included gains on the sale of various branch and operational facilities totaling $4.0 million during the six months ended June 30, 2019 and $4.2 million during the same period in 2018.
Non-Interest Expense
The components of non-interest expense were as follows:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Salaries and wages
$
90,790

 
$
85,204

 
$
183,266

 
$
171,887

Employee benefits
20,051

 
17,907

 
43,577

 
39,902

Net occupancy
21,133

 
19,455

 
40,400

 
39,195

Technology, furniture and equipment
22,157

 
20,459

 
43,821

 
40,138

Deposit insurance
2,453

 
4,605

 
5,261

 
9,484

Intangible amortization
305

 
369

 
630

 
757

Other
46,320

 
40,909

 
88,054

 
84,156

Total
$
203,209

 
$
188,908

 
$
405,009

 
$
385,519


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Total non-interest expense for the three and six months ended June 30, 2019 increased $14.3 million, or 7.6%, and $19.5 million, or 5.1%, compared to the same periods in 2018, respectively. Changes in the various components of non-interest expense are discussed below.
Salaries and Wages. Salaries and wages for the three and six months ended June 30, 2019 increased $5.6 million, or 6.6%, and $11.4 million, or 6.6%, compared to the same periods in 2018. The increases were primarily related to increases in salaries, due to an increase in the number of employees and normal annual merit and market increases, as well as increases in incentive compensation and stock compensation.
Employee Benefits. Employee benefits expense for the three and six months ended June 30, 2019 increased $2.1 million, or 12.0%, and $3.7 million, or 9.2%, compared to the same periods in 2018, respectively. The increases were primarily due to increases in medical benefits expense (up $562 thousand and $1.2 million, respectively), expenses related to our defined benefit retirement plans (up $585 thousand and $1.2 million, respectively), expenses related to our 401(k) plan (up $505 thousand and $891 thousand, respectively) and payroll taxes (up $376 thousand and $297 thousand, respectively).
During the three and six months ended June 30, 2019, we recognized a combined net periodic pension expense of $331 thousand and $662 thousand, respectively, related to our defined benefit retirement plans compared to a combined net periodic pension benefit of $254 thousand and $508 thousand during the same periods in 2018. Our defined benefit retirement and restoration plans were frozen effective as of December 31, 2001 and were replaced by a profit sharing plan (which was merged with and into our 401(k) plan during 2019). Management believes these actions helped to reduce the volatility in retirement plan expense. However, we still have funding obligations related to the defined benefit and restoration plans and could recognize retirement expense related to these plans in future years, which would be dependent on the return earned on plan assets, the level of interest rates and employee turnover. See Note 12 - Defined Benefit Plans for additional information related to our net periodic pension benefit/cost.
Net Occupancy. Net occupancy expense for the three and six months ended June 30, 2019 increased $1.7 million, or 8.6%, and $1.2 million, or 3.1%, respectively, compared to the same periods in 2018. The increases during the three and six months ended June 30, 2019 were primarily related to increases in lease expense (up $1.8 million and $2.2 million, respectively), depreciation on leasehold improvements (up $226 thousand and $456 thousand, respectively) and repairs and maintenance/service contracts expense (up $458 thousand and $238 thousand, respectively) partly offset by decreases in property taxes (down $749 thousand and $1.5 million, respectively). Fluctuations in the foregoing categories of net occupancy expense were primarily related to the commencement of the lease of our new corporate headquarters building in San Antonio and other leases related to existing facilities and our expansion within the Houston market area.
Technology, Furniture and Equipment. Technology, furniture and equipment expense for the three and six months ended June 30, 2019 increased $1.7 million, or 8.3%, and $3.7 million, or 9.2%, respectively, compared to the same periods in 2018. The increases were primarily related to increases in software maintenance (up $1.5 million and $3.1 million for the three and six months ended June 30, 2019, respectively), software amortization (up $249 thousand and $456 thousand for the three and six months ended June 30, 2019, respectively) and depreciation (up $46 thousand and $334 thousand for the three and six months ended June 30, 2019, respectively).
Deposit Insurance. Deposit insurance expense totaled $2.5 million and $5.3 million for the three and six months ended June 30, 2019 compared to $4.6 million and $9.5 million for the three and six months ended June 30, 2018. The decrease in deposit insurance expense during 2019 was primarily related to the termination of the quarterly Deposit Insurance Fund surcharge in the fourth quarter of 2018, as further discussed below.
In August 2016, the Federal Deposit Insurance Corporation (“FDIC”) announced that the Deposit Insurance Fund reserve ratio had surpassed 1.15% as of June 30, 2016. As a result, beginning in the third quarter of 2016, the range of initial assessment rates for all institutions was adjusted downward and institutions with $10 billion or more in assets were assessed a quarterly surcharge. The quarterly surcharge was terminated in the fourth quarter of 2018 as the Deposit Insurance Fund reserve ratio as of September 30, 2018 exceeded the statutory minimum of 1.35% required by the Dodd-Frank Act.
Intangible Amortization. Intangible amortization is primarily related to core deposit intangibles and, to a lesser extent, intangibles related to customer relationships and non-compete agreements. Intangible amortization for the three and six months ended June 30, 2019 decreased $64 thousand, or 17.3%, and $127 thousand, or 16.8%, respectively, compared to the same periods in 2018. The decrease in amortization during 2019 was primarily related to the completion of amortization of certain previously recognized intangible assets as well as a reduction in the annual amortization rate of certain previously recognized intangible assets as we use an accelerated amortization approach which results in higher amortization rates during the earlier years of the useful lives of intangible assets.

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Other Non-Interest Expense. Other non-interest expense for the three and six months ended June 30, 2019 increased $5.4 million, or 13.2%, and $3.9 million, or 4.6%, respectively, compared to the same periods in 2018. The increases during the three and six months ended June 30, 2019 included increases in advertising/promotions expense, partly related to new sponsorship arrangements (up $3.3 million and $6.8 million, respectively); platform fees related to investment services (up $1.0 million and $1.5 million); and travel, meals and entertainment expense (up $1.0 million and $1.2 million). The increase during the three months ended June 30, 2019 also included an increase in professional services expense (up $773 thousand). The increases from these items, among other things, were partly offset by decreases in donations expense, which was impacted by a significant contribution to our charitable foundation in 2018 (down $434 thousand and $4.1 million, respectively); and sundry and other miscellaneous expense (down $723 thousand and $1.1 million, respectively).
Results of Segment Operations
Our operations are managed along two primary operating segments: Banking and Frost Wealth Advisors. A description of each business and the methodologies used to measure financial performance is described in Note 15 - Operating Segments in the accompanying notes to consolidated financial statements included elsewhere in this report. Net income (loss) by operating segment is presented below:
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Banking
$
110,893

 
$
109,276

 
$
223,810

 
$
212,917

Frost Wealth Advisors
4,897

 
5,901

 
11,297

 
11,535

Non-Banks
(4,204
)
 
(3,836
)
 
(7,025
)
 
(6,631
)
Consolidated net income
$
111,586

 
$
111,341

 
$
228,082

 
$
217,821

Banking
Net income for the three and six months ended June 30, 2019 increased $1.6 million, or 1.5%, and increased $10.9 million, or 5.1%, compared to the same periods in 2018. The increase during the three months ended June 30, 2019 was primarily the result of a $16.3 million increase in net interest income and a $1.9 million decrease in the provision for loan losses partly offset by an $11.4 million increase in non-interest expense, a $4.0 million decrease in non-interest income and a $1.2 million increase in income tax expense. The increase during the six months ended June 30, 2019 was primarily the result of a $33.4 million increase in net interest income partly offset by a $15.6 million increase in non-interest expense, a $3.7 million increase in income tax expense, a $2.2 million increase in the provision for loan losses and a $1.0 million decrease in non-interest income.
Net interest income for the three and six months ended June 30, 2019 increased $16.3 million, or 6.8%, and $33.4 million, or 7.1%, compared to the same periods in 2018. The increases were primarily related to increases in the average yields on loans, taxable securities and interest-bearing deposits combined with increases in the average volumes of loans, tax-exempt securities and taxable securities. The impact of these items were partly offset by increases in the average rates paid on interest-bearing deposits and other borrowed funds and decreases in the average volume of interest bearing deposits (primarily excess reserves held in an interest-bearing account at the Federal Reserve). See the analysis of net interest income included in the section captioned “Net Interest Income” included elsewhere in this discussion.
The provision for loan losses for the three and six months ended June 30, 2019 totaled $6.4 million and $17.4 million compared to $8.3 million and $15.2 million for the same periods in 2018. See the analysis of the provision for loan losses included in the section captioned “Allowance for Loan Losses” included elsewhere in this discussion.
Non-interest income for the three and six months ended June 30, 2019 decreased $4.0 million, or 7.7%, and $1.0 million, or 0.9%, compared to the same periods in 2018. The decrease during the three months ended June 30, 2019 was primarily due to decreases in other non-interest income, other charges, commissions and fees and insurance commissions and fees partly offset by increases in service charges on deposit accounts and interchange and debit card transaction fees. The decrease during the six months ended June 30, 2019 was primarily due to decreases in other non-interest income, and other charges, commissions and fees partly offset by increases in insurance commissions and fees, service charges on deposit accounts and interchange and debit card transaction fees. The decreases in other non-interest income during the three and six months ended June 30, 2019 were primarily related to decreases in sundry and other miscellaneous income, gains on the sale of foreclosed and other assets, public finance underwriting fees and income from customer derivative and trading activities. The decreases in other charges, commissions and fees during the three and six months ended June 30, 2019 were primarily related to decreases in income from capital markets advisory services and processing fees partly offset by increases in letter of credit fees. The decrease in insurance commissions and fees during the three months ended June 30, 2019 was primarily related to a decrease in business volumes and a decrease in contingent income. The increase in insurance commission and fees during the six months ended June 30, 2019 was primarily related to increased business volumes and market rates partly offset by a decrease in contingent income. The increase in service

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charges on deposit accounts during 2019 was primarily related to an increase in overdraft/insufficient funds charges on consumer and commercial accounts partly offset by a decrease in commercial service charges. The increase in interchange and debit card transaction fees during 2019 was primarily related to increased transaction volumes. See the analysis of these categories of non-interest income included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Non-interest expense for the three and six months ended June 30, 2019 increased $11.4 million, or 7.2%, and $15.6 million, or 4.8%, compared to the same periods in 2018. The increases were primarily related to increases in salaries and wages, employee benefits, other non-interest expense, technology, furniture and equipment expense and net occupancy expense partly offset by decreases in deposit insurance expense. The increases in salaries and wages during 2019 were primarily due to an increase in the number of employees and normal annual merit and market increases, as well as increases in incentive compensation and stock compensation. The increases in employee benefits were primarily related to increases in medical benefits expense, expenses related to our defined benefit retirement plans, expenses related to our 401(k) plan and payroll taxes. The increases in other non-interest expense during the three and six months ended June 30, 2019 compared to the same periods in 2018 were primarily related to increases in advertising/promotions expense and travel, meals and entertainment expense partly offset by decreases in donations expense and sundry and other miscellaneous expense. The increase in other non-interest expense during the three months ended June 30, 2019 also included an increase in professional services expense. The increases in technology, furniture and equipment expense during 2019 were primarily related to increases in software maintenance, software amortization and depreciation. The increases in net occupancy expense during 2019 were primarily related to increases in lease expense, depreciation on leasehold improvements and repairs and maintenance/service contracts expense partly offset by decreases in property taxes. The decreases in deposit insurance expense during 2019 were primarily related to the termination of the quarterly Deposit Insurance Fund surcharge in the fourth quarter of 2018. See the analysis of these categories of non-interest expense included in the section captioned “Non-Interest Expense” included elsewhere in this discussion.
Frost Insurance Agency, which is included in the Banking operating segment, had gross commission revenues of $10.1 million and $28.7 million during the three and six months ended June 30, 2019 compared to $10.6 million and $26.7 million during the three and six months ended June 30, 2018. The decrease during the three months ended June 30, 2019 was primarily related to a decrease in business volumes and a decrease in contingent income. The increase during the six months ended June 30, 2019 was primarily related to increased business volumes and market rates partly offset by a decrease in contingent income. The decrease in contingent income during 2019 was primarily due to decreases in performance related contingent income related to lower growth within the portfolio partly offset by the impact of improvement in the loss performance of insurance policies previously placed. See the analysis of insurance commissions and fees included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Frost Wealth Advisors
Net income for the three and six months ended June 30, 2019 decreased $1.0 million, or 17.0%, and $238 thousand, or 2.1%, compared to the same periods in 2018. The decreases were primarily related to increases in non-interest expense (up $2.9 million and $4.2 million, respectively) partly offset by increases in non-interest income (up $1.6 million and $3.9 million, respectively).
Non-interest income for the three and six months ended June 30, 2019 increased $1.6 million, or 4.8%, and $3.9 million, or 5.7%, compared to the same periods in 2018. The increases were primarily related to increases in trust and investment management fees and other charges, commissions and fees. Trust and investment management fee income is the most significant income component for Frost Wealth Advisors. Investment fees are the most significant component of trust and investment management fees, making up approximately 82.2% of total trust and investment management fees for the first six months of 2019. Investment and other custodial account fees are generally based on the market value of assets within a trust account. Volatility in the equity and bond markets impacts the market value of trust assets and the related investment fees. The increases in trust and investment management fees during the three and six months ended June 30, 2019 compared to the same periods in 2018 were primarily the result of increases in trust investment fees due to higher average equity valuations and an increase in the number of accounts. The increases in other charges, commissions and fees during the three and six months ended June 30, 2019 were primarily due to increases in income from the sale of money market accounts and life insurance partly offset by decreases in income from the sale of mutual funds and annuities and brokerage commissions. See the analysis of trust and investment management fees included in the section captioned “Non-Interest Income” included elsewhere in this discussion.
Non-interest expense for the three and six months ended June 30, 2019 increased $2.9 million, or 10.8%, and $4.2 million, or 7.7%, compared to the same periods in 2018. The increases were primarily related to increases in other non-interest expense, salaries and wages and net occupancy expense. The increases in other non-interest expense during 2019 were primarily due to increases in platform fees related to investment services, professional service expense and travel, meals and entertainment expense, among other things, partly offset by decreases in outside computer services, among other things. The increases in salaries and wages during 2019 were primarily due to an increase in the number of employees and normal annual merit and market increases,

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as well as increases in incentive compensation. The increases in net occupancy expense during 2019 were partly related to increases in lease expense and lease overhead allocations.
Non-Banks
The Non-Banks operating segment had net losses of $4.2 million and $7.0 million during the three and six months ended June 30, 2019, respectively, compared to net losses of $3.8 million and $6.6 million during the same periods in 2018. The increased net losses for the three and six months ended June 30, 2019 were primarily due to increases in net interest expense due to increases in the interest rate paid on our long-term borrowings and increases in other non-interest expense partly offset by decreases in salaries and wages compared to the same periods in 2018.
Income Taxes
We recognized income tax expense of $14.9 million and $28.8 million, for an effective tax rate of 11.8% and 11.2% for the three and six months ended June 30, 2019 compared to $13.8 million and $25.0 million, for an effective tax rate of 11.1% and 10.3% for the three and six months ended June 30, 2018. The effective income tax rates differed from the U.S. statutory federal income tax rates of 21% during 2019 and 2018 primarily due to the effect of tax-exempt income from loans, securities and life insurance policies and the income tax effects associated with stock-based compensation.
Average Balance Sheet
Average assets totaled $31.4 billion for the six months ended June 30, 2019 representing an increase of $450.5 million, or 1.5%, compared to average assets for the same period in 2018. Earning assets increased $211.1 million, or 0.7%, during the first six months of 2019 compared to the same period in 2018. The increase in earning assets was primarily related to an $874.4 million increase in average loans, a $630.6 million increase in average taxable securities and a $533.5 million increase in average tax-exempt securities mostly offset by a $1.8 billion decrease in average interest-bearing deposits, federal funds sold and resell agreements. Average premises and equipment increased $244.8 million, or 46.4%, primarily resulting from the adoption of a new accounting standard which required the recognition of our operating leases on our balance sheet (See Note 1 - Significant Accounting Policies in the accompanying Notes to Financial Statements). Average deposits decreased $195.9 million, or 0.7%, during the first six months of 2019 compared to the same period in 2018. The decrease included a $629.5 million decrease in non-interest bearing deposits partly offset by a $433.6 million increase in interest-bearing deposit accounts. Average non-interest bearing deposits made up 39.0% and 41.1% of average total deposits during the first six months of 2019 and 2018, respectively.
Loans
Loans were as follows as of the dates indicated:
 
June 30,
2019
 
Percentage
of Total
 
December 31,
2018
 
Percentage
of Total
Commercial and industrial
$
5,380,487

 
37.2
%
 
$
5,111,957

 
36.3
%
Energy:
 
 
 
 
 
 
 
Production
1,197,717

 
8.3

 
1,309,314

 
9.3

Service
173,473

 
1.2

 
168,775

 
1.2

Other
110,159

 
0.7

 
124,509

 
0.9

Total energy
1,481,349

 
10.2

 
1,602,598

 
11.4

Commercial real estate:
 
 
 
 
 
 
 
Commercial mortgages
4,291,781

 
29.7

 
4,121,966

 
29.2

Construction
1,323,040

 
9.2

 
1,267,717

 
9.0

Land
299,435

 
2.1

 
306,755

 
2.2

Total commercial real estate
5,914,256

 
41.0

 
5,696,438

 
40.4

Consumer real estate:
 
 
 
 
 
 
 
Home equity loans
356,754

 
2.5

 
353,924

 
2.5

Home equity lines of credit
349,061

 
2.4

 
337,168

 
2.4

Other
453,083

 
3.1

 
427,898

 
3.0

Total consumer real estate
1,158,898

 
8.0

 
1,118,990

 
7.9

Total real estate
7,073,154

 
49.0

 
6,815,428

 
48.3

Consumer and other
524,159

 
3.6

 
569,750

 
4.0

Total loans
$
14,459,149

 
100.0
%
 
$
14,099,733

 
100.0
%

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Loans increased $359.4 million, or 2.5%, compared to December 31, 2018. The majority of our loan portfolio is comprised of commercial and industrial loans, energy loans and real estate loans. Commercial and industrial loans made up 37.2% and 36.3% of total loans at June 30, 2019 and December 31, 2018, respectively, while energy loans made up 10.2% and 11.4% of total loans, respectively, and real estate loans made up 49.0% and 48.3% of total loans, respectively, at those dates. Real estate loans include both commercial and consumer balances. Selected details related to our loan portfolio segments are presented below. Refer to our 2018 Form 10-K for a more detailed discussion of our loan origination and risk management processes.
Commercial and industrial. Commercial and industrial loans increased $268.5 million, or 5.3%, during the first six months of 2019. Our commercial and industrial loans are a diverse group of loans to small, medium and large businesses. The purpose of these loans varies from supporting seasonal working capital needs to term financing of equipment. While some short-term loans may be made on an unsecured basis, most are secured by the assets being financed with collateral margins that are consistent with our loan policy guidelines. The commercial and industrial loan portfolio also includes commercial leases and purchased shared national credits ("SNC"s).
Energy. Energy loans include loans to entities and individuals that are engaged in various energy-related activities including (i) the development and production of oil or natural gas, (ii) providing oil and gas field servicing, (iii) providing energy-related transportation services (iv) providing equipment to support oil and gas drilling (v) refining petrochemicals, or (vi) trading oil, gas and related commodities. Energy loans decreased $121.2 million, or 7.6%, during the first six months of 2019 compared to December 31, 2018. The average loan size, the significance of the portfolio and the specialized nature of the energy industry requires a highly prescriptive underwriting policy. Exceptions to this policy are rarely granted. Due to the large borrowing requirements of this customer base, the energy loan portfolio includes participations and SNCs.
Purchased Shared National Credits. Purchased shared national credits are participations purchased from upstream financial organizations and tend to be larger in size than our originated portfolio. Our purchased SNC portfolio totaled $832.5 million at June 30, 2019, increasing $75.0 million, or 9.9%, from $757.5 million at December 31, 2018. At June 30, 2019, 46.4% of outstanding purchased SNCs were related to the energy industry and 17.8% related to the construction industry. The remaining purchased SNCs were diversified throughout various other industries, with no other single industry exceeding 10% of the total purchased SNC portfolio. Additionally, almost all of the outstanding balance of purchased SNCs was included in the energy and commercial and industrial portfolio, with the remainder included in the real estate categories. SNC participations are originated in the normal course of business to meet the needs of our customers. As a matter of policy, we generally only participate in SNCs for companies headquartered in or which have significant operations within our market areas. In addition, we must have direct access to the company’s management, an existing banking relationship or the expectation of broadening the relationship with other banking products and services within the following 12 to 24 months. SNCs are reviewed at least quarterly for credit quality and business development successes.
Commercial Real Estate. Commercial real estate loans totaled $5.9 billion at June 30, 2019, increasing $217.8 million, or 3.8%, compared to $5.7 billion at December 31, 2018. At such dates, commercial real estate loans represented 83.6% of total real estate loans. The majority of this portfolio consists of commercial real estate mortgages, which includes both permanent and intermediate term loans. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Consequently, these loans must undergo the analysis and underwriting process of a commercial and industrial loan, as well as that of a real estate loan. At June 30, 2019, approximately 49% of the outstanding principal balance of our commercial real estate loans were secured by owner-occupied properties.
Consumer Real Estate and Other Consumer Loans. The consumer loan portfolio, including all consumer real estate and consumer installment loans, totaled $1.7 billion at both June 30, 2019 and December 31, 2018. Consumer real estate loans increased $39.9 million, or 3.6%, from December 31, 2018. Combined, home equity loans and lines of credit made up 60.9% and 61.8% of the consumer real estate loan total at June 30, 2019 and December 31, 2018, respectively. We offer home equity loans up to 80% of the estimated value of the personal residence of the borrower, less the value of existing mortgages and home improvement loans. In general, we do not originate 1-4 family mortgage loans; however, from time to time, we may invest in such loans to meet the needs of our customers or for other regulatory compliance purposes. Consumer and other loans decreased $45.6 million, or 8.0%, from December 31, 2018. The consumer and other loan portfolio primarily consists of automobile loans, overdrafts, unsecured revolving credit products, personal loans secured by cash and cash equivalents and other similar types of credit facilities.

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Non-Performing Assets
Non-performing assets and accruing past due loans are presented in the table below. Troubled debt restructurings on non-accrual status are reported as non-accrual loans. Troubled debt restructurings on accrual status are reported separately.
 
June 30,
2019
 
December 31,
2018
Non-accrual loans:
 
 
 
Commercial and industrial
$
18,768

 
$
9,239

Energy
40,228

 
46,932

Commercial real estate:
 
 
 
Buildings, land and other
10,437

 
15,268

Construction

 

Consumer real estate
669

 
892

Consumer and other
1,419

 
1,408

Total non-accrual loans
71,521

 
73,739

Restructured loans
3,973

 

Foreclosed assets:
 
 
 
Real estate
907

 
1,175

Other

 

Total foreclosed assets
907

 
1,175

Total non-performing assets
$
76,401

 
$
74,914

 
 
 
 
Ratio of non-performing assets to:
 
 
 
Total loans and foreclosed assets
0.53
%
 
0.53
%
Total assets
0.24

 
0.23

Accruing past due loans:
 
 
 
30 to 89 days past due
$
71,411

 
$
59,595

90 or more days past due
15,647

 
20,468

Total accruing past due loans
$
87,058

 
$
80,063

Ratio of accruing past due loans to total loans:
 
 
 
30 to 89 days past due
0.49
%
 
0.42
%
90 or more days past due
0.11

 
0.15

Total accruing past due loans
0.60
%
 
0.57
%
Non-performing assets include non-accrual loans, troubled debt restructurings and foreclosed assets. Non-performing assets at June 30, 2019 increased $1.5 million from December 31, 2018 reflecting increases in non-accrual commercial and industrial loans and restructured loans partly offset by decreases in non-accrual energy loans and commercial real estate loans. There were no non-accrual commercial and industrial loans in excess of $5.0 million at June 30, 2019 or December 31, 2018. Non-accrual energy loans included one credit relationship in excess of $5 million totaling $34.4 million at June 30, 2019. This credit relationship was previously reported as non-accrual with an aggregate balance of $37.6 million at December 31, 2018. Non-accrual energy loans included one other credit relationship in excess of $5 million totaling $6.4 million at December 31, 2018. Non-accrual real estate loans primarily consist of land development, 1-4 family residential construction credit relationships and loans secured by office buildings and religious facilities. There were no non-accrual commercial real estate loans in excess of $5.0 million at June 30, 2019. Non-accrual commercial real estate loans included one relationship in excess of $5.0 million totaling $12.2 million at December 31, 2018.
Generally, loans are placed on non-accrual status if principal or interest payments become 90 days past due and/or management deems the collectibility of the principal and/or interest to be in question, as well as when required by regulatory requirements. Once interest accruals are discontinued, accrued but uncollected interest is charged to current year operations. Subsequent receipts on non-accrual loans are recorded as a reduction of principal, and interest income is recorded only after principal recovery is reasonably assured. Classification of a loan as non-accrual does not preclude the ultimate collection of loan principal or interest.
Restructured loans totaled $4.0 million at June 30, 2019 and consisted of four notes related to a single credit relationship primarily related to commercial real estate. There were no restructured loans at December 31, 2018.
Foreclosed assets represent property acquired as the result of borrower defaults on loans. Foreclosed assets are recorded at estimated fair value, less estimated selling costs, at the time of foreclosure. Write-downs occurring at foreclosure are charged

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against the allowance for loan losses. Regulatory guidelines require us to reevaluate the fair value of foreclosed assets on at least an annual basis. Our policy is to comply with the regulatory guidelines. Write-downs are provided for subsequent declines in value and are included in other non-interest expense along with other expenses related to maintaining the properties. There were no write-downs of foreclosed assets during the six months ended June 30, 2019 while write-downs of foreclosed assets totaled $473 thousand during the six months ended June 30, 2018.
Potential problem loans consist of loans that are performing in accordance with contractual terms but for which management has concerns about the ability of an obligor to continue to comply with repayment terms because of the obligor’s potential operating or financial difficulties. Management monitors these loans closely and reviews their performance on a regular basis. At June 30, 2019 and December 31, 2018, we had $56.9 million and $63.4 million in loans of this type which are not included in any one of the non-accrual, restructured or 90 days past due loan categories. At June 30, 2019, potential problem loans consisted of eight credit relationships. Of the total outstanding balance at June 30, 2019, 32.0% was related to the restaurant industry, 26.1% was related to the leasing industry and 21.4% was related to the energy industry. Weakness in these organizations’ operating performance and financial condition, among other factors, have caused us to heighten the attention given to these credits.
Allowance for Loan Losses
The allowance for loan losses is a reserve established through a provision for loan losses charged to expense, which represents management’s best estimate of inherent losses that have been incurred within the existing portfolio of loans. The allowance, in the judgment of management, is necessary to reserve for estimated loan losses and risks inherent in the loan portfolio. Our allowance for loan loss methodology, which is more fully described in our 2018 Form 10-K, follows the accounting guidance set forth in U.S. generally accepted accounting principles and the Interagency Policy Statement on the Allowance for Loan and Lease Losses, which was jointly issued by U.S. bank regulatory agencies. The level of the allowance reflects management’s continuing evaluation of industry concentrations, specific credit risks, loan loss and recovery experience, current loan portfolio quality, present economic, political and regulatory conditions and unidentified losses inherent in the current loan portfolio. Portions of the allowance may be allocated for specific credits; however, the entire allowance is available for any credit that, in management’s judgment, should be charged off.
The table below provides, as of the dates indicated, an allocation of the allowance for loan losses by loan type; however, allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories:
 
June 30,
2019
 
December 31,
2018
Commercial and industrial
$
57,714

 
$
48,580

Energy
25,818

 
29,052

Commercial real estate
35,914

 
38,777

Consumer real estate
5,637

 
6,103

Consumer and other
9,846

 
9,620

Total
$
134,929

 
$
132,132

The reserve allocated to commercial and industrial loans at June 30, 2019 increased $9.1 million compared to December 31, 2018. The increase was primarily due to increases in historical valuation allowances and specific valuation allowances partly offset by a decrease in macroeconomic valuation allowances. Historical valuation allowances increased $6.3 million from $25.4 million at December 31, 2018 to $31.7 million at June 30, 2019. The increase was primarily related to an increase in the volume of classified loans graded as "substandard - accrual" (risk grade 11) as well as non-classified loans graded "watch" (risk grade 9) combined with increases in the historical loss allocation factors applied to these loan grades. Classified loans consist of loans having a risk grade of 11, 12 or 13. Classified commercial and industrial loans totaled $112.9 million at June 30, 2019 compared to $78.9 million at December 31, 2018. The weighted-average risk grade of commercial and industrial loans was 6.37 at June 30, 2019 compared to 6.30 at December 31, 2018. Commercial loan net charge-offs totaled $4.4 million during the first six months of 2019 compared to $11.2 million during the first six months of 2018. Charge-offs in 2018 included $8.2 million related to two credit relationships. Specific valuation allowances for commercial and industrial loans increased $3.7 million from $2.6 million at December 31, 2018 to $6.3 million at June 30, 2019. The increase was mostly related to new specific valuation allowances totaling $3.8 million on three credit relationships which had an aggregate outstanding balance totaling $9.8 million at June 30, 2019. Macroeconomic valuation allowances for commercial and industrial loans decreased $1.1 million from $10.6 million at December 31, 2018 to $9.5 million at June 30, 2019. The decrease was primarily related to a decrease in the general macroeconomic risk allocation (down $1.1 million), as further discussed below. General valuation allowances for commercial and industrial loans did not significantly fluctuate, increasing $165 thousand from $10.1 million at December 31, 2018 to $10.2 million at June 30, 2019.
The reserve allocated to energy loans at June 30, 2019 decreased $3.2 million compared to December 31, 2018. As a result, reserves allocated to energy loans as a percentage of total energy loans totaled 1.74% at June 30, 2019 compared to 1.81% at

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December 31, 2018. This decrease was primarily related to decreases in general valuation allowances, macroeconomic valuation allowances and historical valuation allowances. General valuation allowances for energy loans decreased $1.5 million from $6.0 million at December 31, 2018 to $4.5 million at June 30, 2019. The decrease was primarily related to decreases in the allocations for highly-leveraged transactions and excessive industry concentrations partly offset by a decrease in the adjustment for recoveries. Macroeconomic valuation allowances related to energy loans decreased $1.1 million from $3.7 million at December 31, 2018 to $2.5 million at June 30, 2019, due to a decrease in the environmental risk adjustment (down $695 thousand), as a result of decreases in the environmental adjustment factor and the historical loss valuation allowances to which the environmental risk adjustment factor is applied, and a decrease in the general macroeconomic risk allocation (down $452 thousand), as further discussed below. Historical valuation allowances decreased $610 thousand from $9.7 million at December 31, 2018 to $9.1 million at June 30, 2019. The decrease was partly related to decreases in the historical loss allocation factors for both non-classified energy loans and classified energy loans. The decrease was also partly related to decreases in the volume of non-classified energy loans graded as "pass"(risk grades below 9) (down $146.1 million) and "special mention" (risk grade 10) (down $40.9 million) partly offset by increases in the volume of non-classified energy loans graded as "watch" (risk grade 9) (up $46.6 million) and classified energy loans graded as "substandard - accrual" (risk grade 11) (up $25.9 million). Total classified energy loans increased $19.2 million from $72.4 million at December 31, 2018 to $91.6 million at June 30, 2019. The weighted-average risk grade of energy loans increased to 6.35 at June 30, 2019 from 6.22 at December 31, 2018. Specific valuation allowances for energy loans totaled $9.7 million at June 30, 2019 and related to a single credit relationship totaling $33.9 million while specific valuation allowances for energy loans totaled $9.7 million at December 31, 2018 and related to four credit relationships totaling $39.9 million. We had net charge-offs of energy loans totaling $1.9 million during the six months ended June 30, 2019 compared to net charge-offs of $4.9 million during the same period in 2018.
The reserve allocated to commercial real estate loans at June 30, 2019 decreased $2.9 million compared to December 31, 2018. The decrease was primarily related to decreases in macroeconomic valuation allowances and specific valuation allowances. Macroeconomic valuation allowances decreased $1.6 million from $11.0 million at December 31, 2018 to $9.4 million at June 30, 2019. The decrease was primarily related to a decrease in the general macroeconomic risk allocation (down $1.1 million), as further discussed below, and a decrease in the environmental risk adjustment (down $457 thousand), primarily resulting from a decrease in the environmental risk adjustment factor. Specific valuation allowances for commercial real estate loans totaled $1.4 million at June 30, 2019 decreasing $1.2 million from $2.6 million at December 31, 2018. Specific valuation allowances at December 31, 2018 primarily related to a single credit relationship totaling $12.2 million. This relationship was sold during the second quarter of 2019. We recognized net charge-offs totaling $266 thousand in connection with the sale. Specific valuation allowances for commercial real estate loans at June 30, 2019 related to two credit relationships totaling $4.8 million. Historical valuation allowances related to commercial real estate loans increased $162 thousand from $20.8 million at December 31, 2018 to $21.0 million at June 30, 2019. Classified commercial real estate loans decreased $19.7 million from $118.3 million at December 31, 2018 to $98.6 million at June 30, 2019 while non-classified commercial real estate loans increased $237.5 million from $5.6 billion at December 31, 2018 to $5.8 billion at June 30, 2019. The weighted-average risk grade of commercial real estate loans was 7.03 and 7.05 at June 30, 2019 and December 31, 2018, respectively. General valuation allowances for commercial real estate loans decreased $261 thousand from $4.4 million at December 31, 2018 to $4.1 million at June 30, 2019.
The reserve allocated to consumer real estate loans at June 30, 2019 decreased $466 thousand compared to December 31, 2018. This decrease was primarily due to a $286 thousand decrease in macroeconomic valuation allowances, as further discussed below, and a $111 thousand decrease in general valuation allowances, which was primarily related to a decrease in the allocation for loans not reviewed by concurrence partly offset by a decrease in the adjustment for recoveries.
The reserve allocated to consumer and other loans at June 30, 2019 increased $226 thousand compared to December 31, 2018. The increase was primarily related to a $747 thousand increase in historical valuation allowances primarily due to an increase in the historical loss allocation factor. This increase was partly offset by a decrease in general valuation allowances (down $384 thousand), primarily related to a decrease in the allocation for loans not reviewed by concurrence and an increase in the adjustment for recoveries, and a decrease in macroeconomic valuation allowances (down $149 thousand), primarily related to a decrease in the general macroeconomic risk allocation, as further discussed below.
As more fully discussed in our 2018 Form 10-K, under our allowance methodology, we allocate additional reserves for general macroeconomic risk in excess of our minimum calculated need using our allowance model. These additional reserves are based upon management's assessment of current and expected economic conditions, trends and other quantitative and qualitative portfolio risk factors that are external to us or that are not otherwise captured in our allowance modeling process but impact the credit risk or inherent losses within our loan portfolio segments. These additional reserves are allocated to our various portfolio segments based upon management judgment.

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Activity in the allowance for loan losses is presented in the following table.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2019
 
2018
 
2019
 
2018
Balance at beginning of period
$
136,350

 
$
149,885

 
$
132,132

 
$
155,364

Provision for loan losses
6,400

 
8,251

 
17,403

 
15,196

Charge-offs:
 
 
 
 
 
 
 
Commercial and industrial
(3,389
)
 
(4,153
)
 
(6,077
)
 
(13,405
)
Energy
(2,000
)
 
(2,689
)
 
(2,000
)
 
(5,539
)
Commercial real estate
(557
)
 
(614
)
 
(617
)
 
(619
)
Consumer real estate
(601
)
 
(482
)
 
(2,379
)
 
(1,201
)
Consumer and other
(5,103
)
 
(3,994
)
 
(10,800
)
 
(7,966
)
Total charge-offs
(11,650
)
 
(11,932
)
 
(21,873
)
 
(28,730
)
Recoveries:
 
 
 
 
 
 
 
Commercial and industrial
935

 
605

 
1,685

 
2,182

Energy
29

 
613

 
76

 
614

Commercial real estate
29

 
218

 
119

 
306

Consumer real estate
315

 
318

 
404

 
511

Consumer and other
2,521

 
2,268

 
4,983

 
4,783

Total recoveries
3,829

 
4,022

 
7,267

 
8,396

Net charge-offs
(7,821
)
 
(7,910
)
 
(14,606
)
 
(20,334
)
Balance at end of period
$
134,929

 
$
150,226

 
$
134,929

 
$
150,226

 
 
 
 
 
 
 
 
Ratio of allowance for loan losses to:
 
 
 
 
 
 
 
Total loans
0.93
%
 
1.10
%
 
0.93
%
 
1.10
%
Non-accrual loans
188.66

 
126.05

 
188.66

 
126.05

Ratio of annualized net charge-offs to average total loans
0.22

 
0.23

 
0.21

 
0.31

The provision for loan losses increased $2.2 million, or 14.5%, during the six months ended June 30, 2019 compared to the same period in 2018. The provision for loan losses during the six months ended June 30, 2019 primarily reflects the level of net charge-offs and specific valuation allowances as well as the impact of an increase in classified loans and the overall growth in the loan portfolio since December 31, 2018. Net charge-offs totaled $14.6 million for the six months ended June 30, 2019 compared to $20.3 million for the same period in 2018. Specific valuation allowances totaled $18.8 million at June 30, 2019 compared to $16.2 million at December 31, 2018 and $24.7 million at June 30, 2018. Classified energy, commercial and industrial and commercial real estate loans totaled $303.0 million at June 30, 2019 compared to $269.6 million at December 31, 2018 and $324.9 million at June 30, 2018. The overall weighted-average risk grade of our energy, commercial and industrial and commercial real estate loan portfolios was 6.68 at June 30, 2019 compared to 6.63 at December 31, 2018 and 6.71 at June 30, 2018.
The ratio of the allowance for loan losses to total loans was 0.93% at June 30, 2019 compared to 0.94% at December 31, 2018. Management believes the recorded amount of the allowance for loan losses is appropriate based upon management’s best estimate of probable losses that have been incurred within the existing portfolio of loans. Should any of the factors considered by management in evaluating the appropriate level of the allowance for loan losses change, our estimate of probable loan losses could also change, which could affect the level of future provisions for loan losses.
Capital and Liquidity
Capital. Shareholders’ equity totaled $3.7 billion at June 30, 2019 and $3.4 billion December 31, 2018. In addition to net income of $228.1 million, other sources of capital during the six months ended June 30, 2019 included other comprehensive income, net of tax, of $283.0 million; $8.0 million related to stock-based compensation and $7.8 million in proceeds from stock option exercises. Uses of capital during the six months ended June 30, 2019 included $91.5 million of dividends paid on preferred and common stock, $50.5 million of treasury stock purchases and $12.6 million related to the cumulative effect of a new accounting principle adopted during the first quarter of 2019. See Note 1 - Significant Accounting Policies.
The accumulated other comprehensive income/loss component of shareholders’ equity totaled a net, after-tax, unrealized gain of $219.4 million at June 30, 2019 compared to a net, after-tax, unrealized loss of $63.6 million at December 31, 2018. The change was primarily due to a $281.3 million net, after-tax, change in the net unrealized gain/loss on securities available for sale.

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Under the Basel III Capital Rules, we have elected to opt-out of the requirement to include most components of accumulated other comprehensive income in regulatory capital. Accordingly, amounts reported as accumulated other comprehensive income/loss do not increase or reduce regulatory capital and are not included in the calculation of risk-based capital and leverage ratios. Regulatory agencies for banks and bank holding companies utilize capital guidelines designed to measure capital and take into consideration the risk inherent in both on-balance sheet and off-balance sheet items. See Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report.
We paid a quarterly dividend of $0.67 and $0.71 per common share during the first and second quarters of 2019, respectively, and a quarterly dividend of $0.57 and $0.67 per common share during the first and second quarters of 2018, respectively. This equates to a common stock dividend payout ratio of 39.0% and 37.2% during the first six months of 2019 and 2018, respectively. Our ability to declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our capital stock may be impacted by certain restrictions described in Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report.
Stock Repurchase Plans. From time to time, our board of directors has authorized stock repurchase plans. In general, stock repurchase plans allow us to proactively manage our capital position and return excess capital to shareholders. Shares purchased under such plans also provide us with shares of common stock necessary to satisfy obligations related to stock compensation awards. On October 24, 2017, our board of directors authorized a $150.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a two-year period from time to time at various prices in the open market or through private transactions. We repurchased 496,307 shares under this plan at a total cost of $50.0 million during the second quarter of 2019 while we repurchased 1,027,292 shares at a total cost of $100.0 million during the fourth quarter of 2018. On July 24, 2019, our board of directors authorized a $100.0 million stock repurchase program, allowing us to repurchase shares of our common stock over a one-year period from time to time at various prices in the open market or through private transactions. See Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements and Part II, Item 2 - Unregistered Sales of Equity Securities and Use of Proceeds, each included elsewhere in this report.
Liquidity. As more fully discussed in our 2018 Form 10-K, our liquidity position is continuously monitored and adjustments are made to the balance between sources and uses of funds as deemed appropriate. Liquidity risk management is an important element in our asset/liability management process. We regularly model liquidity stress scenarios to assess potential liquidity outflows or funding problems resulting from economic disruptions, volatility in the financial markets, unexpected credit events or other significant occurrences deemed problematic by management. These scenarios are incorporated into our contingency funding plan, which provides the basis for the identification of our liquidity needs. As of June 30, 2019, management is not aware of any events that are reasonably likely to have a material adverse effect on our liquidity, capital resources or operations.
Since Cullen/Frost is a holding company and does not conduct operations, its primary sources of liquidity are dividends upstreamed from Frost Bank and borrowings from outside sources. Banking regulations may limit the amount of dividends that may be paid by Frost Bank. See Note 7 - Capital and Regulatory Matters in the accompanying notes to consolidated financial statements included elsewhere in this report regarding such dividends. At June 30, 2019, Cullen/Frost had liquid assets, including cash and resell agreements, totaling $221.9 million.
Accounting Standards Updates
See Note 17 - Accounting Standards Updates in the accompanying notes to consolidated financial statements included elsewhere in this report for details of recently issued accounting pronouncements and their expected impact on our financial statements.

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Consolidated Average Balance Sheets and Interest Income Analysis - Quarter To Date
(Dollars in thousands - taxable-equivalent basis)
 
June 30, 2019
 
June 30, 2018
 
Average
Balance
 
Interest
Income/
Expense
 
Yield/
Cost
 
Average
Balance
 
Interest
Income/
Expense
 
Yield/
Cost
Assets:
 
 
 
 
 
 
 
 
 
 
 
Interest-bearing deposits
$
1,171,139

 
$
7,828

 
2.64
%
 
$
2,885,455

 
$
13,917

 
1.93
%
Federal funds sold and resell agreements
245,554

 
1,541

 
2.48

 
296,335

 
1,415

 
1.92

Securities:
 
 
 
 
 
 
 
 
 
 
 
Taxable
5,082,573

 
30,324

 
2.40

 
4,197,627

 
21,188

 
2.01

Tax-exempt
8,239,595

 
81,536

 
4.06

 
7,730,597

 
79,278

 
4.10

Total securities
13,322,168

 
111,860

 
3.42

 
11,928,224

 
100,466

 
3.36

Loans, net of unearned discounts
14,375,154

 
191,228

 
5.34

 
13,536,590

 
165,414

 
4.90

Total Earning Assets and Average Rate Earned
29,114,015

 
312,457

 
4.33

 
28,646,604

 
281,212

 
3.93

Cash and due from banks
484,085

 
 
 
 
 
476,212

 
 
 
 
Allowance for loan losses
(138,349
)
 
 
 
 
 
(150,551
)
 
 
 
 
Premises and equipment, net
809,088

 
 
 
 
 
531,410

 
 
 
 
Accrued interest and other assets
1,222,246

 
 
 
 
 
1,254,506

 
 
 
 
Total Assets
$
31,491,085

 
 
 
 
 
$
30,758,181

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
Non-interest-bearing demand deposits:
 
 
 
 
 
 
 
 
 
 
 
Commercial and individual
$
9,640,935

 
 
 
 
 
$
10,062,771

 
 
 
 
Correspondent banks
201,779

 
 
 
 
 
190,879

 
 
 
 
Public funds
304,897

 
 
 
 
 
374,817

 
 
 
 
Total non-interest-bearing demand deposits
10,147,611

 
 
 
 
 
10,628,467

 
 
 
 
Interest-bearing deposits:
 
 
 
 
 
 
 
 
 
 
 
Private accounts
 
 
 
 
 
 
 
 
 
 
 
Savings and interest checking
6,774,143

 
1,364

 
0.08

 
6,687,540

 
1,304

 
0.08

Money market deposit accounts
7,588,056

 
19,529

 
1.03

 
7,577,963

 
14,023

 
0.74

Time accounts
969,668

 
4,021

 
1.66

 
787,450

 
1,290

 
0.66

Public funds
513,272

 
1,930

 
1.51

 
387,141

 
958

 
0.99

Total interest-bearing deposits
15,845,139

 
26,844

 
0.68

 
15,440,094

 
17,575

 
0.46

Total deposits
25,992,750

 
 
 
 
 
26,068,561

 
 
 
 
Federal funds purchased and repurchase agreements
1,242,246

 
5,220

 
1.69

 
1,019,961

 
631

 
0.25

Junior subordinated deferrable interest debentures
136,265

 
1,478

 
4.34

 
136,208

 
1,311

 
3.85

Subordinated notes payable and other notes
98,772

 
1,164

 
4.71

 
98,615

 
1,164

 
4.72

Total Interest-Bearing Funds and Average Rate Paid
17,322,422

 
34,706

 
0.80

 
16,694,878

 
20,681

 
0.50

Accrued interest and other liabilities
388,680

 
 
 
 
 
164,995

 
 
 
 
Total Liabilities
27,858,713

 
 
 
 
 
27,488,340

 
 
 
 
Shareholders’ Equity
3,632,372

 
 
 
 
 
3,269,841

 
 
 
 
Total Liabilities and Shareholders’ Equity
$
31,491,085

 
 
 
 
 
$
30,758,181

 
 
 
 
Net interest income
 
 
$
277,751

 
 
 
 
 
$
260,531

 
 
Net interest spread
 
 
 
 
3.53
%
 
 
 
 
 
3.43
%
Net interest income to total average earning assets
 
 
 
 
3.85
%
 
 
 
 
 
3.64
%
For these computations: (i) average balances are presented on a daily average basis, (ii) information is shown on a taxable-equivalent basis assuming a 21% tax rate (iii) average loans include loans on non-accrual status, and (iv) average securities include unrealized gains and losses on securities available for sale while yields are based on average amortized cost.

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Consolidated Average Balance Sheets and Interest Income Analysis - Year To Date
(Dollars in thousands - taxable-equivalent basis)
 
June 30, 2019
 
June 30, 2018
 
Average
Balance
 
Interest
Income/
Expense
 
Yield/
Cost
 
Average
Balance
 
Interest
Income/
Expense
 
Yield/
Cost
Assets:
 
 
 
 
 
 
 
 
 
 
 
Interest-bearing deposits
$
1,448,520

 
$
18,467

 
2.54
%
 
$
3,281,979

 
$
28,011

 
1.72
%
Federal funds sold and resell agreements
247,738

 
3,129

 
2.51

 
241,610

 
2,176

 
1.82

Securities:
 
 
 
 
 
 
 
 
 
 
 
Taxable
4,813,190

 
55,003

 
2.30

 
4,182,596

 
41,746

 
2.00

Tax-exempt
8,234,541

 
164,011

 
4.05

 
7,701,055

 
157,612

 
4.11

Total securities
13,047,731

 
219,014

 
3.40

 
11,883,651

 
199,358

 
3.36

Loans, net of unearned discounts
14,290,642

 
377,878

 
5.33

 
13,416,282

 
317,781

 
4.78

Total Earning Assets and Average Rate Earned
29,034,631

 
618,488

 
4.30

 
28,823,522

 
547,326

 
3.82

Cash and due from banks
503,286

 
 
 
 
 
493,981

 
 
 
 
Allowance for loan losses
(136,011
)
 
 
 
 
 
(153,518
)
 
 
 
 
Premises and equipment, net
772,293

 
 
 
 
 
527,515

 
 
 
 
Accrued interest and other assets
1,216,706

 
 
 
 
 
1,248,863

 
 
 
 
Total Assets
$
31,390,905

 
 
 
 
 
$
30,940,363

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
Non-interest-bearing demand deposits:
 
 
 
 
 
 
 
 
 
 
 
Commercial and individual
$
9,637,530

 
 
 
 
 
$
10,171,916

 
 
 
 
Correspondent banks
203,746

 
 
 
 
 
207,813

 
 
 
 
Public funds
328,551

 
 
 
 
 
419,585

 
 
 
 
Total non-interest-bearing demand deposits
10,169,827

 
 
 
 
 
10,799,314

 
 
 
 
Interest-bearing deposits:
 
 
 
 
 
 
 
 
 
 
 
Private accounts
 
 
 
 
 
 
 
 
 
 
 
Savings and interest checking
6,774,003

 
2,836

 
0.08

 
6,661,661

 
2,441

 
0.07

Money market deposit accounts
7,641,488

 
40,169

 
1.06

 
7,584,045

 
21,721

 
0.58

Time accounts
932,771

 
7,177

 
1.55

 
782,905

 
2,274

 
0.59

Public funds
533,730

 
3,836

 
1.45

 
419,773

 
1,777

 
0.85

Total interest-bearing deposits
15,881,992

 
54,018

 
0.69

 
15,448,384

 
28,213

 
0.37

Total deposits
26,051,819

 
 
 
 
 
26,247,698

 
 
 
 
Federal funds purchased and repurchase agreements
1,211,376

 
10,236

 
1.70

 
1,035,101

 
1,265

 
0.25

Junior subordinated deferrable interest debentures
136,258

 
2,976

 
4.37

 
136,200

 
2,453

 
3.60

Subordinated notes payable and other notes
98,752

 
2,328

 
4.71

 
98,596

 
2,328

 
4.72

Total Interest-Bearing Funds and Average Rate Paid
17,328,378

 
69,558

 
0.81

 
16,718,281

 
34,259

 
0.41

Accrued interest and other liabilities
355,551

 
 
 
 
 
160,089

 
 
 
 
Total Liabilities
27,853,756

 
 
 
 
 
27,677,684

 
 
 
 
Shareholders’ Equity
3,537,149

 
 
 
 
 
3,262,679

 
 
 
 
Total Liabilities and Shareholders’ Equity
$
31,390,905

 
 
 
 
 
$
30,940,363

 
 
 
 
Net interest income
 
 
$
548,930

 
 
 
 
 
$
513,067

 
 
Net interest spread
 
 
 
 
3.49
%
 
 
 
 
 
3.41
%
Net interest income to total average earning assets
 
 
 
 
3.82
%
 
 
 
 
 
3.58
%
For these computations: (i) average balances are presented on a daily average basis, (ii) information is shown on a taxable-equivalent basis assuming a 21% tax rate, (iii) average loans include loans on non-accrual status, and (iv) average securities include unrealized gains and losses on securities available for sale while yields are based on average amortized cost.



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Item 3. Quantitative and Qualitative Disclosures About Market Risk
The disclosures set forth in this item are qualified by the section captioned “Forward-Looking Statements and Factors that Could Affect Future Results” included in Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations of this report and other cautionary statements set forth elsewhere in this report.
Refer to the discussion of market risks included in Item 7A. Quantitative and Qualitative Disclosures About Market Risk in the 2018 Form 10-K. There has been no significant change in the types of market risks we face since December 31, 2018.
We utilize an earnings simulation model as the primary quantitative tool in measuring the amount of interest rate risk associated with changing market rates. The model quantifies the effects of various interest rate scenarios on projected net interest income and net income over the next 12 months. The model measures the impact on net interest income relative to a flat-rate case scenario of hypothetical fluctuations in interest rates over the next 12 months. These simulations incorporate assumptions regarding balance sheet growth and mix, pricing and the repricing and maturity characteristics of the existing and projected balance sheet. The impact of interest rate derivatives, such as interest rate swaps, caps and floors, is also included in the model. Other interest rate-related risks such as prepayment, basis and option risk are also considered.
For modeling purposes, as of June 30, 2019, the model simulations projected that 100 and 200 basis point ratable increases in interest rates would result in positive variances in net interest income of 0.4% and 1.7%, respectively, relative to the flat-rate case over the next 12 months, while 100 and 200 basis point ratable decreases in interest rates would result in negative variances in net interest income of 3.0% and 8.2%, respectively, relative to the flat-rate case over the next 12 months. The June 30, 2019 model simulations for increased interest rates were impacted by the assumption, for modeling purposes, that we will begin to pay interest on commercial demand deposits (those not already receiving an earnings credit rate) in the third quarter of 2019, as further discussed below. For modeling purposes, as of June 30, 2018, the model simulations projected that 100 and 200 basis point ratable increases in interest rates would result in positive variances in net interest income of 0.5% and 1.8%, respectively, relative to the flat-rate case over the next 12 months, while 100 and 200 basis point ratable decreases in interest rates would result in negative variances in net interest income of 3.2% and 8.6%, respectively, relative to the flat-rate case over the next 12 months. The June 30, 2018 model simulations for increased interest rates were impacted by the assumption, for modeling purposes, that we would begin to pay interest on commercial demand deposits (those not already receiving an earnings credit rate) in the third quarter of 2018, as further discussed below. The model simulations as of June 30, 2019 indicate that our balance sheet is in a similar asset sensitive position in comparison to our balance sheet as of June 30, 2018.
We do not currently pay interest on a significant portion of our commercial demand deposits. If we began to pay interest on commercial demand deposits (those not already receiving an earnings credit rate), our balance sheet would likely become less asset sensitive. Any interest rate that would ultimately be paid on these commercial demand deposits would likely depend upon a variety of factors, some of which are beyond our control. For modeling purposes, we have assumed an aggressive pricing structure with interest payments for commercial demand deposits (those not already receiving an earnings credit) beginning in the third quarters of 2018 and 2019, respectively, for each simulation. Should the actual interest rate paid on commercial demand deposits be less than the rate assumed in the model simulations, or should the interest rate paid for commercial demand deposits become an administered rate with less direct correlation to movements in general market interest rates, our balance sheet could be more asset sensitive than the model simulations might otherwise indicate.
As of June 30, 2019, the effects of a 200 basis point increase and a 200 basis point decrease in interest rates on our derivative holdings would not result in a significant variance in our net interest income.
The effects of hypothetical fluctuations in interest rates on our securities classified as “trading” under ASC Topic 320, “Investments—Debt and Equity Securities,” are not significant, and, as such, separate quantitative disclosure is not presented.
Item 4. Controls and Procedures
As of the end of the period covered by this Quarterly Report on Form 10-Q, an evaluation was carried out by management, with the participation of its Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the disclosure controls and procedures were effective as of the end of the period covered by this report. No change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934) occurred during the last fiscal quarter that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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Part II. Other Information
Item 1. Legal Proceedings
We are subject to various claims and legal actions that have arisen in the course of conducting business. Management does not expect the ultimate disposition of these matters to have a material adverse impact on our financial statements.
Item 1A. Risk Factors
There has been no material change in the risk factors disclosed under Item 1A. of our 2018 Form 10-K.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
The following table provides information with respect to purchases we made or were made on our behalf or any “affiliated purchaser” (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of our common stock during the three months ended June 30, 2019. Dollar amounts in thousands.
Period
Total Number of
Shares Purchased
 
Average Price
Paid Per Share
 
Total Number of
Shares Purchased
as Part of Publicly
Announced Plan
 
Maximum
Number of Shares
(or Approximate
Dollar Value)
That May Yet Be
Purchased Under
the Plan at the
End of the Period
April 1, 2019 to April 30, 2019
150,708

 
$
101.27

 
150,708

 
$
50,000

May 1, 2019 to May 31, 2019
345,599

 
100.51

 
345,599

 
34,737

June 1, 2019 to June 30, 2019

 

 

 

Total
496,307

 
$
100.74

 
496,307

 
 

Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
None.
Item 5. Other Information
None.
Item 6. Exhibits
(a) Exhibits
Exhibit
Number
Description
10.1+
31.1
31.2
32.1++
32.2++
101
Interactive Data File - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
+
Management contract or compensatory plan or arrangement.
++
This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

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Table of Contents

Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

 
 
 
 
 
 
 
 
 
Cullen/Frost Bankers, Inc.
 
 
 
 
(Registrant)
 
 
 
 
 
 
 
Date:
July 25, 2019
 
By:  
/s/ Jerry Salinas
 
 
 
 
 
Jerry Salinas
 
 
 
 
 
Group Executive Vice President
 
 
 
 
 
and Chief Financial Officer
 
 
 
 
 
(Duly Authorized Officer, Principal Financial
 
 
 
 
 
Officer and Principal Accounting Officer)
 

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