VICOR CORP - Quarter Report: 2018 June (Form 10-Q)

Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q

For the quarterly period ended June 30, 2018

For the transition period from                     

Commission File Number 0-18277

VICOR CORPORATION

(Exact name of registrant as specified in its charter)

25 Frontage Road, Andover, Massachusetts 01810

(Address of Principal Executive Office)

(978) 470-2900

(Registrant’s telephone number)

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 and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files.)    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a 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.

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  ☒

The number of shares outstanding of each of the issuer’s classes of Common Stock as of July 24, 2018 was:

Table of Contents

VICOR CORPORATION

INDEX TO FORM 10-Q

Table of Contents

VICOR CORPORATION

Part I – Financial Information

Item 1 – Financial Statements

Condensed Consolidated Balance Sheets

(In thousands)

(Unaudited)

See accompanying notes.

-1-

Table of Contents

VICOR CORPORATION

Condensed Consolidated Statements of Operations

(In thousands, except per share amounts)

(Unaudited)

See accompanying notes.

-2-

Table of Contents

VICOR CORPORATION

Condensed Consolidated Statements of Comprehensive Income (Loss)

(In thousands)

(Unaudited)

See accompanying notes.

-3-

Table of Contents

VICOR CORPORATION

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

See accompanying notes.

-4-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

1. Basis of Presentation

The accompanying unaudited Condensed Consolidated Financial Statements of Vicor Corporation and its consolidated subsidiaries (collectively, the “Company”) have been prepared in accordance with generally accepted accounting principles for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission. Accordingly, these interim financial statements do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.

In the opinion of management, all adjustments (consisting of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three and six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for any other interim period or the year ending December 31, 2018. The balance sheet at December 31, 2017 presented herein has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 filed by the Company with the Securities and Exchange Commission on March 9, 2018 (“2017 Form 10-K”).

2. Recently Adopted Accounting Standard

In May 2014, the Financial Accounting Standards Board (“FASB”) issued new guidance for revenue recognition (“Topic 606”), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The new guidance, which includes several amendments, replaces most of the prior revenue recognition guidance under U.S. Generally Accepted Accounting Principles. The Company adopted the new guidance as of January 1, 2018 using the modified retrospective method, as applied to all contracts. As a result, the Company has changed its accounting policy for revenue recognition, as detailed below. The most significant impact of the adoption was on the timing of recognition of sales to the Company’s stocking distributors and including the additional required disclosures under the new standard. Through December 31, 2017, the Company deferred revenue and the related cost of sales on shipments to stocking distributors until the distributors resold the products to their customers. Upon adoption, the Company is no longer permitted to defer revenue until sale by the stocking distributor to the end customer, but rather, is required to estimate the effects of returns and allowances provided to stocking distributors and record revenue at the time of sale to the stocking distributor. In addition, the Company modified the accounting for a contractual arrangement due to a reassessment of the number of performance obligations in the arrangement, and adjusted for the timing of certain royalty revenue. The cumulative effect of adopting this guidance, recorded as an increase to the balance of retained earnings as of January 1, 2018, was approximately $3,670,000. The comparative information for the three and six months ended December 31, 2017, including disclosures, has not been restated and continues to be reported under the accounting standards in effect for that period.

-5-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The following tables summarize the impacts of adopting the new revenue recognition guidance on certain components of the Company’s condensed consolidated financial statements as of and for the three and six months ended June 30, 2018 (in thousands):

-6-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The impact of the adoption of the new revenue recognition standard on the unaudited consolidated statements of comprehensive income (loss) and cash flows for the three and six months ended June 30, 2018 was not material.

3. Revenue Recognition

Prior to January 1, 2018

Product revenue was recognized in the period when persuasive evidence of an arrangement with a customer existed, the products were shipped and title was transferred to the customer, the price was fixed or determinable, and collection was considered probable.

The Company deferred revenue and the related cost of sales on shipments to stocking distributors until the distributors resold the products to their customers. The agreements with these stocking distributors allowed them to receive price adjustment credits or to return qualifying products for credit, as determined by the Company, in order to reduce the amounts of slow-moving, discontinued, or obsolete product from their inventory. These stocking distributors were also granted price adjustment credits in the event of a price decrease subsequent to the date the product was shipped and invoiced to the stocking distributor. Given the uncertainties associated with the levels of price adjustment credits to be granted to stocking distributors, the sales price to the stocking distributor was not fixed or determinable until the stocking distributor resold the products to its customers. Therefore,

-7-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

the Company deferred revenue and the related cost of sales on shipments to stocking distributors until the stocking distributors resold the products to their customers. Accordingly, the Company’s revenue fully reflected end-customer purchases and was not impacted by stocking distributor inventory levels. Agreements with stocking distributors limited returns of qualifying product to the Company to a certain percentage of the value of the Company’s shipments to that stocking distributor during the prior quarter. In addition, stocking distributors were allowed to return unsold products if the Company terminated the relationship with the stocking distributor. Title to the inventory transferred to the stocking distributor at the time of shipment or delivery to the stocking distributor. Payment from the stocking distributors were due in accordance with the Company’s standard payment terms. These payment terms were not contingent upon the stocking distributors’ sale of the products to their end-customers. Upon title transfer to stocking distributors, the Company reduced inventory for the cost of goods shipped, the margin (i.e., revenues less cost of revenues) was recorded as deferred revenue, and an account receivable was recorded. As of December 31, 2017, the Company had gross deferred revenue of approximately $4,659,000 and gross deferred cost of revenues of approximately $2,135,000 under agreements with stocking distributors.

The Company evaluated revenue arrangements with potential multi-element deliverables to determine if there were more than one unit of accounting. A deliverable constituted a separate unit of accounting when it had standalone value and there were no customer-negotiated refund or return rights for the undelivered elements. The Company entered into arrangements containing multiple elements that could include a combination of non-recurring engineering services (“NRE”), prototype units, and production units. The Company determined NRE and prototype units represented one unit of accounting and production units represented a separate unit of accounting, based on an assessment of the respective standalone value. The Company deferred revenue recognition for NRE and prototype units until completion of the final milestone under the NRE arrangement, which was generally the delivery of the prototype. Recognition generally took place within six to twelve months of the initiation of the arrangement. Revenue for the production units was recognized upon shipment, consistent with other product revenue summarized above.

License fees were recognized as earned. The Company recognized revenue on such arrangements only when the contract was signed, the license term had begun, all obligations had been delivered to the customer, and collection was probable.

Subsequent to January 1, 2018

Revenue is recognized when control of the promised goods or services is transferred to a customer, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods or services. Sales, value add, and other taxes collected concurrent with revenue-producing activities are excluded from revenue. The expected costs associated with product warranties continue to be recognized at the time product revenue is recognized. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in cost of revenues.

The Company’s primary source of net revenue comes from the sale of products, which are modular power components and power systems for converting, regulating and controlling electric current. The principal customers for the Company’s power converters and systems are large original equipment manufacturers and the original design manufacturers and contract manufacturers serving them, and smaller, lower volume users, which are broadly distributed across several major market areas. The Company recognizes revenue for product sales at a point in time following the transfer of control of such products to the customer, which typically occurs upon shipment or delivery, depending on the terms of the underlying contract. As noted above, the Company previously deferred revenue and the related cost of revenues on shipments to stocking distributors until the distributors resold the products to their customers. The Company now records revenue for such transactions at the time of sale to the stocking distributor. The Company establishes sales allowances for estimated future product returns including distributor returns and price adjustment credits, primarily based upon historical and anticipated rates of product returns and allowances.

Certain contracts with customers contain multiple performance obligations, which typically may include a combination of NRE, prototype units, and production units. For these contracts, the individual performance obligations are accounted for separately if they are distinct. Generally, the Company has determined the NRE and prototype units represent one distinct performance obligation and the production units represent a separate distinct performance obligation. For such arrangements, revenue is allocated to each performance obligation based on its relative standalone selling price, based on prices charged to customers or using the expected cost plus a margin approach. The Company defers revenue recognition for NRE and prototype

-8-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

units until the point in time at which the final milestone under the NRE arrangement is completed and control is transferred to the customer, which is generally the delivery of the prototype. Revenue for production units is recognized upon shipment or delivery, consistent with product revenue summarized above.

The Company licenses its intellectual property under right to use licenses, in which royalties due to the Company are based upon a percentage of the licensee’s sales. The Company utilizes the exception under the revenue recognition guidance for the recognition of sales- or usage-based royalties, in which the royalties are not recognized until the later of when 1) the customer’s subsequent sales or usages occur, or 2) the performance obligation to which some or all of the sales- or usage-based royalty has been allocated is satisfied or partially satisfied.

Accounts receivable includes amounts billed and currently due from customers. The amounts due are stated at their estimated realizable value. The Company’s payment terms vary by the type and location of its customers and the products or services offered, although terms generally include a requirement of payment within 30 to 60 days. The Company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments, based on assessments of customers’ credit-risk profiles and payment histories. If the financial condition of the Company’s customers were to deteriorate, resulting in an impairment of their ability to make payments, additional allowances may be required. The Company does not require collateral from its customers, although there have been circumstances when the Company has required cash in advance (i.e., a partial down-payment) to facilitate orders in excess of a customer’s established credit limit. To date, such amounts have not been material.

The Company records deferred revenue, which represents a contract liability, when cash payments are received or due in advance of performance under a contract with a customer. During the three and six months ended June 30, 2018, under Topic 606, the Company recognized revenue of approximately $340,000 and $385,000, respectively, that was included in deferred revenue at the beginning of each respective period.

The Company applies the practical expedient allowed under the new guidance for the incremental costs of obtaining a contract for sales commissions, which are expensed when incurred because the amortization period is generally less than one year. These costs are included in selling, general and administrative expenses.

The Company also applies another practical expedient allowed under the new guidance and does not disclose the value of unsatisfied performance obligations for contracts with an original expected length of one year or less.

-9-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The following tables present the Company’s net revenues disaggregated by geography based on the location of the customer, by reportable segment, for the three and six months ended June 30, 2018 (in thousands):

-10-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The following tables present the Company’s net revenues disaggregated by the category of revenue, by reportable segment, for the three and six months ended June 30, 2018 (in thousands):

The following table presents the changes in certain contract assets and (liabilities) (in thousands):

-11-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The increase in accounts receivable was primarily due to an increase in net revenues of approximately $15,425,000 in the second quarter of 2018 compared to the fourth quarter of 2017. The decrease in deferred revenue was primarily due to the adoption of the new revenue recognition guidance, as the balances related to stocking distributors were reversed as part of the transition adjustment recorded as of January 1, 2018 (see Note 2 to the Condensed Consolidated Financial Statements). The increase in deferred expenses is primarily due to additional work incurred on certain NRE projects during the second quarter of 2018 for which the associated revenue is being deferred. The increase in sales allowances was due to the establishment of new allowances, in connection with the new revenue recognition guidance, for potential returns and price adjustment credits on sales to stocking distributors.

Deferred expenses are included in Other current assets, and customer prepayments are included in Deferred revenue, in the accompanying Condensed Consolidated Balance Sheets, respectively.

4. Long-Term Investments

As of June 30, 2018 and December 31, 2017, the Company held one auction rate security with a par value of $3,000,000, purchased through and held in custody by a broker-dealer affiliate of Bank of America, N.A., that has experienced failed auctions (the “Failed Auction Security”) since February 2008. The Failed Auction Security held by the Company is Aaa/AA+ rated by major credit rating agencies, is collateralized by student loans, and is guaranteed by the U.S. Department of Education under the Federal Family Education Loan Program. Management is not aware of any reason to believe the issuer of the Failed Auction Security is presently at risk of default. Through June 30, 2018, the Company has continued to receive interest payments on the Failed Auction Security in accordance with the terms of its indenture. Management believes the Company ultimately should be able to liquidate the Failed Auction Security without significant loss primarily due to the overall quality of the issue held and the collateral securing the substantial majority of the underlying obligation. However, current conditions in the auction rate securities market have led management to conclude the recovery period for the Failed Auction Security exceeds 12 months. As a result, the Company continued to classify the Failed Auction Security as long-term as of June 30, 2018.

The following is a summary of available-for-sale securities (in thousands):

As of June 30, 2018, the Failed Auction Security had been in an unrealized loss position for greater than 12 months.

-12-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

The amortized cost and estimated fair value of the Failed Auction Security on June 30, 2018, by contractual maturity, is shown below (in thousands):

Based on the fair value measurements described in Note 5, the fair value of the Failed Auction Security on June 30, 2018, with a par value of $3,000,000, was estimated by the Company to be approximately $2,581,000. The gross unrealized loss of $419,000 on the Failed Auction Security consists of two types of estimated loss: an aggregate credit loss of $44,000 and an aggregate temporary impairment of $375,000. In determining the amount of credit loss, the Company compared the present value of cash flows expected to be collected to the amortized cost basis of the security, considering credit default risk probabilities and changes in credit ratings as significant inputs, among other factors (See Note 5).

The following table represents a rollforward of the activity related to the credit loss recognized in earnings on the Failed Auction Security for the six months ended June 30 (in thousands):

At this time, the Company has no intent to sell the impaired Failed Auction Security and does not believe it is more likely than not the Company will be required to sell this security. If current market conditions deteriorate further, the Company may be required to record additional unrealized losses. If the credit rating of the security deteriorates, the Company may be required to adjust the carrying value of the investment through impairment charges recorded in the Condensed Consolidated Statements of Operations, and any such impairment adjustments may be material.

Based on the Company’s ability to access cash and cash equivalents and its expected operating cash flows, management does not anticipate the current lack of liquidity associated with the Failed Auction Security held will affect the Company’s ability to execute its current operating plan.

5. Fair Value Measurements

The Company accounts for certain financial assets at fair value, defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions market participants would use in pricing an asset or liability. A three-level hierarchy is used to show the extent and level of judgment used to estimate fair value measurements.

-13-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

Assets and liabilities measured at fair value on a recurring basis included the following as of June 30, 2018 (in thousands):

As of June 30, 2018, there was insufficient observable auction rate security market information available to determine the fair value of the Failed Auction Security using Level 1 or Level 2 inputs. As such, the Company’s investment in the Failed Auction Security was deemed to require valuation using Level 3 inputs. Management, after consulting with advisors, valued the Failed Auction Security using analyses and pricing models similar to those used by market participants (i.e., buyers, sellers, and the broker-dealers responsible for execution of the Dutch auction pricing mechanism by which each issue’s interest rate was set). Management utilized a probability weighted discounted cash flow (“DCF”) model to determine the estimated fair value of this security as of June 30, 2018. The major assumptions used in preparing the DCF model were similar to those described in Note 5 - Fair Value Measurements in the Notes to the Consolidated Financial Statements contained in the Company’s 2017 Form 10-K.

-14-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

Quantitative information about Level 3 fair value measurements as of June 30, 2018 is as follows (dollars in thousands):

The change in the estimated fair value calculated for the investment valued on a recurring basis utilizing Level 3 inputs (i.e., the Failed Auction Security) for the six months ended June 30, 2018 was as follows (in thousands):

The Company has classified its contingent consideration obligations as Level 3 because the fair value for these liabilities was determined using unobservable inputs. The liabilities were based on estimated sales of legacy products over the period of royalty payments at the royalty rate, discounted using the Company’s estimated cost of capital.

The change in the estimated fair value calculated for the liabilities valued on a recurring basis utilizing Level 3 inputs (i.e., the Contingent consideration obligations) for the six months ended June 30, 2018 was as follows (in thousands):

There were no transfers between Level 1 and Level 2 of the fair value hierarchy during the six months ended June 30, 2018.

-15-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

6. Stock-Based Compensation

The Company uses the Black-Scholes option pricing model to calculate the fair value of stock option awards and options granted under the Vicor Corporation 2017 Employee Stock Purchase Plan (“ESPP”) as of their grant date. Stock-based compensation expense, net for the three and six months ended June 30 was as follows (in thousands):

The overall increase in stock-based compensation between the 2018 and 2017 periods was due to an increase in stock options granted between July 1, 2017 and June 30, 2018. The increase in selling, general and administrative stock-based compensation for the three and six months ended June 30, 2018, compared to the same periods in 2017, was also due to increased expense for certain Vicor stock options held by a non-employee. The fair value of these stock options, and related stock-based compensation, are adjusted monthly based on changes in the assumptions under the Black-Scholes option pricing model, including the price of the Company’s common stock, in accordance with the accounting for stock options granted to non-employees.

Compensation expense by type of award for the three and six months ended June 30 was as follows (in thousands):

-16-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

7. Net Income (Loss) per Share

The following table sets forth the computation of basic and diluted net income (loss) per share for the three and six months ended June 30 (in thousands, except per share amounts):

8. Inventories

Inventories are valued at the lower of cost (determined using the first-in, first-out method) or net realizable value. Fixed production overhead is allocated to the inventory cost per unit based on the normal capacity of the production facilities. Abnormal production costs, including fixed cost variances from normal production capacity, if any, are charged to cost of revenues in the period incurred. All shipping and handling costs incurred in connection with the sale of products are included in cost of revenues.

The Company provides reserves for inventories estimated to be excess, obsolete or unmarketable. The Company’s estimation process for assessing net realizable value is based upon its known backlog, projected future demand, historical consumption and expected market conditions. If the Company’s estimated demand and/or market expectation were to change or if product sales were to decline, the Company’s estimation process may cause larger inventory reserves to be recorded, resulting in larger charges to cost of revenues.

-17-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

Inventories were as follows (in thousands):

9. Product Warranties

The Company generally offers a two-year warranty for all of its products, though it has extended the warranty period to three years for certain military grade products sold after January 1, 2017. The Company is party to a limited number of supply agreements with certain customers contractually committing the Company to warranty and indemnification requirements exceeding those to which the Company has been exposed in the past. The Company provides for the estimated cost of product warranties at the time product revenue is recognized. Factors influencing the Company’s warranty reserves include the number of units sold, historical and anticipated rates of warranty returns, and the cost per return. The Company periodically assesses the adequacy of warranty reserves and adjusts the amounts as necessary. Warranty obligations are included in “Accrued expenses” in the accompanying Condensed Consolidated Balance Sheets.

Product warranty activity for the three and six months ended June 30 was as follows (in thousands):

10. Severance Charge

In May 2018, the Company’s management authorized the closure of its Granite Power Technologies, Inc. (“GPT”) subsidiary, of the Brick Business Unit (“BBU”) segment, by the end of 2018. GPT, located in Manchester, N.H., is one of three Vicor Custom Power (“VCP”) entities. Certain of GPT’s products will continue to be manufactured and sold by the two remaining VCP entities. As a result, the Company recorded a pre-tax charge of $350,000 in the second quarter of 2018, for the cost of severance and other employee-related costs involving cash payments based on each employee’s respective length of service. This was recorded as “Severance charge” in the Condensed Consolidated Statement of Operations. The related liability is presented as “Accrued severance charge” in the Condensed Consolidated Balance Sheets.

-18-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

11. Income Taxes

The tax provision is based on the estimated annual effective tax rate for the year, which includes estimated federal, state and foreign income taxes on the Company’s projected pre-tax income (loss).

The provision for income taxes and the effective income tax rates for the three and six months ended June 30 were as follows (dollars in thousands):

The effective tax rate was lower than the statutory tax rate in 2018 due to the utilization of net operating carryforwards and tax credits. The provisions for income taxes in each 2017 period were primarily due to estimated foreign income taxes and for estimated state taxes in jurisdictions in which the Company does not have net operating loss carryforwards. No tax benefit could be recognized for the majority of the Company’s losses during these periods due to a full valuation allowance against all net domestic deferred tax assets. The provision and effective income tax rate were higher in the second quarter of 2017 as the Company had previously recorded a tax benefit in the first quarter of 2017.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation, referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to: (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) elimination of the corporate alternative minimum tax (“AMT”) and changing how existing AMT credits can be realized; (3) changing rules related to the usage and limitation of net operating loss carryforwards created in tax years beginning after December 31, 2017; and (4) implementing a territorial tax system, which generally eliminates the U.S. federal income tax on dividends from foreign subsidiaries, and imposes a one-time transition tax on certain earnings of foreign subsidiaries previously untaxed in the United States.

Certain impacts of the Tax Act would generally require accounting to be completed in the period of enactment. However, in response to the complexities of the Tax Act, the Securities and Exchange Commission (“SEC”) issued guidance through Staff Accounting Bulletin No. 118 to provide companies with relief. Specifically, when the initial accounting for items under the Tax Act is incomplete, the guidance allows companies to include provisional amounts when reasonable estimates can be made. The SEC has provided up to a one-year measurement period for companies to finalize the accounting for the impact of the new legislation and the Company expects to finalize the accounting over the coming quarters. The Company has recognized the provisional tax impacts related to the re-measurement of its deferred tax assets and liabilities, and one-time transition tax, for the year ended December 31, 2017. The ultimate impact may differ from these provisional amounts due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued, and actions the Company may take as a result of the Tax Act. There were no changes to the provisional tax impacts referred to above in the first or second quarters of 2018.

-19-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

As of June 30, 2018, the Company continues to maintain a valuation allowance of approximately $33,024,000 against all domestic net deferred tax assets. Management assesses the need for the valuation allowance on a quarterly basis. In assessing the need for a valuation allowance, the Company considers all positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies, and past financial performance. Due to improving financial results, there is increasing positive evidence to support realization of deferred tax assets. Until actual operating results continue to be consistently positive, and the Company believes it is more likely than not it can forecast sufficient future taxable income of the appropriate nature to realize those deferred tax assets, it will continue to maintain the full valuation allowance position. If and when the Company determines the valuation allowance should be released (i.e., reduced), the adjustment would result in a tax benefit reported in that period’s consolidated statements of operations, the effect of which would be an increase in reported net income.

In May 2017, the Company received notice from the Internal Revenue Service that its federal corporate tax return for tax year 2015 had been selected for examination. The examination was completed in May 2018 resulting in no tax liability to the Company. In January 2018, the Company received notice from the New York State Department of Taxation that its New York State tax returns for tax years 2014 through 2016 were selected for audit. Onsite fieldwork for this audit was completed in May 2018, and the Company is awaiting the results of the audit.

12. Commitments and Contingencies

At June 30, 2018, the Company had approximately $2,044,000 of capital expenditure commitments.

The Company is the defendant in a patent infringement lawsuit originally filed on January 28, 2011 by SynQor, Inc. (“SynQor”) in the U.S. District Court for the Eastern District of Texas (the “Texas Action”). The complaint, as amended in September 2011, alleges that the Company’s products, including but not limited to, unregulated bus converters used in intermediate bus architecture power supply systems, infringe SynQor’s U.S. patent numbers 7,072,190, 7,272,021, 7,564,702, and 8,023,290 (“the ‘190 patent”, “the ‘021 patent”, “the ‘702 patent”, and “the ‘290 patent”, respectively). SynQor’s complaint sought an injunction against further infringement and an award of unspecified compensatory and enhanced damages, interest, costs and attorney fees. The Company has denied that its products infringe any of the SynQor patents, asserted that the SynQor patents are invalid, and asserted that the ‘290 patent is unenforceable due to inequitable conduct by SynQor or its agents during the examination of the ‘290 patent at the United States Patent and Trademark Office (“USPTO”). The Company also asserted counterclaims seeking damages against SynQor for deceptive trade practices and tortious interference with prospective economic advantage arising from SynQor’s attempted enforcement of its patents against the Company. On May 23, 2016, after extensive discovery, the Texas Action was stayed by the court pending completion of certain inter partes reexamination proceedings at the USPTO (including any appeals from such proceedings to the Federal Circuit (as defined below)) concerning the SynQor patents, which are described below.

In response to the Texas Action, the Company initiated inter partes reexamination proceedings at the USPTO challenging the validity of certain claims of the SynQor patents asserted in the Texas Action, including all claims that were asserted against the Company by SynQor. The current status of these proceedings is as follows. Regarding the ‘190 patent, the United States Court of Appeals for the Federal Circuit (the “Federal Circuit”) issued a decision on March 13, 2015, determining that certain claims were invalid, and remanding the matter to the Patent Trial and Appeal Board (“PTAB”) of the USPTO for further proceedings. On May 2, 2016, the PTAB issued a decision determining that all but one of the remaining claims of the ‘190 patent were invalid and remanding the remaining claim to a patent examiner for further examination. On June 22, 2017, the examiner issued a determination under 37 C.F.R. § 41.77(d), finding that the remaining claim of the ‘190 patent was unpatentable. That decision is expected to be further reviewed by the PTAB pursuant to 37 C.F.R. § 41.77(f). On May 2, 2016, the PTAB also issued decisions finding all challenged claims of SynQor’s ‘021 patent invalid and upholding the validity of all challenged claims of SynQor’s ‘702 and ‘290 patents.

On August 30, 2017, the Federal Circuit issued rulings with regard to PTAB’s reexamination decisions for the ‘021, ‘702 and ‘290 patents. With respect to the ‘021 patent, the Federal Circuit affirmed the PTAB’s determination that all of the challenged claims of the ‘021 patent were invalid. The Federal Circuit remanded the case to the PTAB for further consideration of the patentability of certain claims that had been added by amendment during the reexamination. With respect to the ‘702 patent, the Federal Circuit affirmed the PTAB’s determination that all of the challenged claims of the ‘702 patent were patentable. With respect to the ‘290 patent, the Federal Circuit vacated the PTAB’s decision upholding the patentability of the ‘290 patent claims, and remanded the case to the PTAB for further consideration.

-20-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

On October 31, 2017, the Company filed a request with the USPTO for ex parte reexamination of the ‘702 patent, based on different prior art references than had been at issue in the previous inter parte reexamination of the ‘702 patent. On December 6, 2017, the USPTO issued a decision granting the Company’s request and initiating ex parte reexamination of the ‘702 patent. On March 21, 2018, the USPTO issued a non-final office action finding all of the challenged claims of the ‘702 patent to be unpatentable. On May 14, 2018, SynQor filed a petition asking the USPTO to vacate its prior decision granting the Company’s request for ex parte reexamination. No action has been taken on the petition to date. The Company continues to monitor the progress of this proceeding.

The Company continues to believe none of its products, including its unregulated bus converters, infringe any valid claim of the asserted SynQor patents, either alone or when used in an intermediate bus architecture implementation. The Company believes SynQor’s claims lack merit and, therefore, continues to vigorously defend itself against SynQor’s patent infringement allegations. The Company does not believe a loss is probable for this matter. If a loss were to be incurred, however, the Company cannot estimate the amount of possible loss or range of possible loss at this time.

In addition to the SynQor matter, the Company is involved in certain other litigation and claims incidental to the conduct of its business. While the outcome of lawsuits and claims against the Company cannot be predicted with certainty, management does not expect any current litigation or claims will have a material adverse impact on the Company’s financial position or results of operations.

13. Picor Merger

On May 25, 2018, the Company’s Board of Directors unanimously approved the merger of the Company with Picor Corporation (“Picor”), a subsidiary of Vicor, fully consolidated for financial reporting purposes, in which the Company was the majority stockholder. The merger was completed as of May 30, 2018, at which time the separate corporate existence of Picor ceased. To effect the merger, holders of Picor Common Stock and Picor stock options received an equivalent value of Vicor Common Stock and Vicor stock options, respectively, which caused the Picor Corporation Amended and Restated 2001 Stock Option and Incentive Plan, and options outstanding thereunder, to be assumed and restated by Vicor. While Picor’s subsidiary status and corporate form ceased to exist upon the closing of the merger, the operations previously conducted by Picor, which are now legally merged into Vicor, continue to be managed and remain categorized as a segment for financial reporting purposes. There was no net impact on the Company’s consolidated financial statements nor any impact on the Company’s segment reporting for the three and six months ended June 30, 2018 as a result of the merger.

14. Segment Information

The Company has organized its business segments according to its key product lines. The BBU segment designs, develops, manufactures, and markets the Company’s legacy lines of DC-DC converters and configurable products, and also includes the entities comprising Vicor Custom Power and the BBU operations of Vicor Japan Company, Ltd. (“VJCL”). The VI Chip segment includes VI Chip Corporation, which designs, develops, manufactures, and markets many of the Company’s advanced power component products. The VI Chip segment also includes the VI Chip business conducted in Japan through VJCL. The Picor segment, which consists of the operations of the Company’s former subsidiary Picor Corporation (see Note 13, above), designs, develops, manufactures, and markets integrated circuits for use in a variety of power management and power system applications. The Picor segment develops integrated circuits for use in the Company’s BBU and VI Chip modules, to be sold as complements to the Company’s BBU and VI Chip products, or for sale to third parties for separate (i.e., stand-alone) applications.

The Company’s Chief Executive Officer (i.e., the chief operating decision maker) evaluates performance and allocates resources based on segment revenues and segment operating income (loss). The operating income (loss) for each segment includes selling, general, and administrative and research and development expenses directly attributable to the segment. Certain of the Company’s indirect overhead costs, which include corporate selling, general, and administrative expenses, are allocated among the segments based upon an estimate of costs associated with each segment. Assets allocated to each segment are based upon specific

-21-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

identification of such assets, which include accounts receivable, inventories, fixed assets and certain other assets. The Corporate segment consists of those operations and assets shared by all segments. The costs of certain centralized executive and administrative functions are recorded in this segment, as are certain shared assets, most notably cash and cash equivalents, deferred tax assets, long-term investments, the Company’s facilities in Massachusetts, real estate, and other assets. The Company’s accounting policies and method of presentation for segments are consistent with that used throughout the Condensed Consolidated Financial Statements.

The following table provides segment financial data as of and for the three months ended June 30 (in thousands):

-22-

Table of Contents

VICOR CORPORATION

Notes to Condensed Consolidated Financial Statements

June 30, 2018

(unaudited)

15. Impact of Recently Issued Accounting Standards

In June 2018, the FASB issued new guidance, Improvements to Nonemployee Share-Based Payment Accounting , which more closely aligns the accounting for share-based payments to non-employees with the accounting for share-based payments to employees. This new guidance is effective for public business entities for annual and interim periods in fiscal years beginning after December 15, 2018. Early adoption is permitted, but no earlier than an entity’s adoption date of Topic 606.The Company is currently evaluating the impact this new guidance will have on its consolidated financial statements.

In May 2017, the FASB issued guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718, Compensation – Stock Compensation. The new guidance is effective for annual and interim periods beginning after December 15, 2017, with early adoption permitted. The Company adopted the new standard on January 1, 2018. The adoption of this new guidance did not have a material impact on its consolidated financial statements and related disclosures.

In August 2016, the FASB issued guidance to clarify how certain cash receipts and cash payments should be presented in the statement of cash flows. These include debt prepayment, settlement of zero-coupon debt instruments, contingent consideration payments made after a business combination, proceeds from the settlement of insurance claims, proceeds from the settlement of corporate-owned life insurance policies, distributions received from equity method investees and beneficial interests in securitization transactions. The new guidance is effective for interim and annual reporting periods beginning after December 15, 2017, with early adoption permitted. The Company adopted the new standard on January 1, 2018. The adoption of this new guidance did not have a material impact on its consolidated financial statements and related disclosures.

In June 2016, the FASB issued new guidance which will require measurement and recognition of expected credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. The new guidance is effective for interim and annual reporting periods beginning after December 15, 2019, with early adoption permitted. It is required to be applied on a modified-retrospective approach with certain elements being adopted prospectively. The Company does not expect the adoption of the new guidance will have a material impact on its consolidated financial statements and related disclosures.

In February 2016, the FASB issued new guidance for lease accounting, which will require lessees to recognize leases on the balance sheet and disclose key information about leasing arrangements. The new guidance establishes a right-of-use model (“ROU”) that will require a lessee to recognize a ROU asset and a lease liability on the balance sheet for all leases with a term longer than twelve months. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. For lessors, the guidance modifies the classification criteria and accounting for sales-type and direct financing leases. The majority of the Company’s leases are for certain of its office and manufacturing space. The Company has developed an implementation plan and continues to gather information, including compiling an inventory of all leasing arrangements, to assess the impact of the new standard on its financial statements. The new standard is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. The Company plans to adopt the new guidance effective January 1, 2019. The new standard must be adopted using a modified retrospective transition which includes certain practical expedients. The Company has not yet determined the impact this new guidance will have on its consolidated financial statements and related disclosures.

Other new pronouncements issued but not effective until after June 30, 2018 are not expected to have a material impact on the Company’s consolidated financial statements.

-23-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Item 2 — Management’s Discussion and Analysis of Financial Condition and Results of Operations

Except for statements of historical fact contained herein, statements in this report constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The words “believes,” “expects,” “anticipates,” “intends,” “estimates,” “plans,” “assumes,” “may,” “will,” “would,” “should,” “continue,” “prospective,” “project,” and other similar words or expressions identify forward-looking statements. Forward-looking statements include, without limitation, statements regarding the transition of the Company’s business strategically and organizationally from serving a large number of relatively low volume customers across diversified markets and geographies to serving a small number of relatively large volume customers, typically concentrated in computing and communications; the level of customer orders overall and, in particular, from large customers and the delivery lead times associated therewith; the financial and operational impact of customer changes to shipping schedules; the derivation of a portion of the Company’s sales in each quarter from orders booked in the same quarter; the Company’s ongoing development of power conversion architectures, switching topologies, packaging technologies, and products; the Company’s plans to invest in expanded manufacturing capacity and the timing and location thereof; the Company’s continued success depending in part on its ability to attract and retain qualified personnel; the Company’s belief that cash generated from operations and the total of its cash and cash equivalents will be sufficient to fund operations for the foreseeable future; the Company’s belief that it has limited exposure to currency risks; the Company’s intentions regarding the declaration and payment of cash dividends; the Company’s intentions regarding protecting its rights under its patents; and the Company’s expectation that no current litigation or claims will have a material adverse impact on its financial position or results of operations. These statements are based upon the Company’s current expectations and estimates as to the prospective events and circumstances which may or may not be within the Company’s control and as to which there can be no assurance. Actual results could differ materially from those expressed or implied by forward-looking statements as a result of various factors, including the Company’s ability to: grow its revenues, establish and maintain profitability, develop and market new products and technologies cost effectively, and on a timely basis leverage the Company’s new technologies in standard products to promote market acceptance of the Company’s new approach to power system architecture; leverage design wins into increased product sales; continue to meet requirements of key customers and prospects; enter into licensing agreements increasing the Company’s market opportunity and accelerating market penetration; realize significant royalties under such licensing agreements; achieve sustainable bookings rates for the Company’s products across served markets and geographies; improve manufacturing and operating efficiencies; successfully enforce the Company’s intellectual property rights; successfully defend outstanding litigation; hire and retain key personnel; and maintain an effective system of internal controls over financial reporting. These and other factors that may influence actual results are described in the risk factors set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017, under Part I, Item 1 — “Business,” under Part I, Item 1A — “Risk Factors,” under Part I, Item 3 — “Legal Proceedings,” and under Part II, Item 7 — “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” The risk factors contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 may not be exhaustive. Therefore, the information contained therein should be read together with other reports and documents that the Company files with the Securities and Exchange Commission from time to time, including Forms 10-Q, 8-K and 10-K, which may supplement, modify, supersede or update those risk factors. Except as required by law, the Company does not undertake any obligation to update any forward-looking statements as a result of future events or developments.

Overview

We design, develop, manufacture, and market modular power components and power systems for converting, regulating, and controlling electric current. We also license certain rights to our technology in return for recurring royalties. The principal customers for our power converters and systems are large original equipment manufacturers (“OEMs”) and the original design manufacturers (“ODMs”) and contract manufacturers serving them, and smaller, lower volume users. We serve a broad range of market segments and geographies worldwide.

We have organized our business segments according to our key product lines. Reflecting our history and direction, we broadly categorize our products as either “legacy” or “advanced,” generally based on design, performance, and form factor considerations, as well as the range of applications for which the products are appropriate.

-24-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

The Brick Business Unit (“BBU”) segment designs, develops, manufactures and markets our legacy lines of DC-DC converters and configurable products, as well as complementary components providing AC line rectification, input filtering, power factor correction, and transient protection. The BBU segment also includes the BBU business conducted through Vicor Japan Company, Ltd. (“VJCL”) and our Vicor Custom Power subsidiaries. The BBU has customers concentrated in aerospace and aviation, defense electronics, industrial automation, industrial equipment, medical diagnostics, rail transportation, and test and measurement instrumentation.

The VI Chip segment consists of our subsidiary, VI Chip Corporation, which designs, develops, manufactures, and markets many of our advanced power component products. The VI Chip segment also includes the VI Chip business conducted in Japan through VJCL. VI Chip generally targets large, high volume customers concentrated in the datacenter and supercomputer segments of the computing market, although we also target applications in aerospace and aviation, autonomous driving, defense electronics, electric and hybrid vehicles, instrumentation and test equipment, networking equipment, and solid state lighting.

The Picor segment consists of the operations of our former subsidiary, Picor Corporation, which was merged into Vicor in May 2018 (see Note 13 to the Condensed Consolidated Financial Statements). The Picor segment designs, develops, and markets integrated circuits for use in a variety of power management and power system applications. The Picor segment is a “fabless manufacturer,” as its products are manufactured, assembled, packaged, and tested by third parties in Asia and the United States. The Picor segment develops integrated circuits for use in our BBU and VI Chip modules, to be sold as complements to our BBU and VI Chip products, or for sale to third parties for separate (i.e., stand-alone) applications, and are often integrated with VI Chip products to enable a customer solution, particularly in the datacenter and supercomputer segments of the computing market. While Picor Corporation’s subsidiary status and corporate form ceased to exist upon the closing of the merger, the operations previously legally merged into Picor Corporation, which are now conducted by Vicor, continue to be managed and remain categorized as a segment for financial reporting purposes.

Our improved consolidated operating results for the second quarter of 2018 were driven by an increase in net revenues, a consequence of sequential quarterly increases in bookings and order backlog, as well as improved gross margins resulting from higher production volumes, favorable product mix, and improved pricing. The sequential increase in quarterly revenue for the period was primarily a result of double-digit percentage increases in the value of shipments of certain legacy and advanced product lines, as well as the start of production shipments of our “Power-on-Package^TM” solution.

Current order booking activity reflects customer interest in our expanding portfolio of highly-differentiated advanced products. Market uptake of our 48 volt to point-of-load solutions for datacenters and supercomputers accelerated during the second quarter of 2018, with increased order volumes for our PRM-VTM and Power-on-Package solutions. We also are receiving increased interest and orders for our ChiP, SM-ChiP, and CM-ChiP modules across a range of applications. Year-to-date bookings for our legacy brick converters, configurable products, and associated components have recovered and are above historical trend, which we attribute primarily to the extended recovery of economic conditions in the geographies and markets we serve, notably in defense electronics, high-value capital goods, and rail.

We believe the following considerations may influence our performance over the remainder of 2018:

Operational Considerations

-25-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Market and Macroeconomic Considerations

Financial Highlights:

-26-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Critical Accounting Policies and Estimates

Please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 for a summary of the Company’s critical accounting policies and estimates.

See Note 2 to the Condensed Consolidated Financial Statements pertaining to the adoption of the new accounting standard for revenue recognition.

-27-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Three months ended June 30, 2018, compared to three months ended June 30, 2017

Consolidated net revenues for the second quarter of 2018 were $74,196,000, an increase of $16,487,000, or 28.6%, as compared to $57,709,000 for the second quarter of 2017, and an increase of $8,927,000, or 13.7%, on a sequential basis from $65,269,000 for the first quarter of 2018.

Net revenues, by segment, for the second quarter of 2018 and the second quarter of 2017 were as follows (dollars in thousands):

The increase in consolidated net revenues for the second quarter of 2018 from the second quarter of 2017 was primarily due to an overall 47.3% increase in bookings in the second quarter of 2018, compared to the second quarter of 2017, with significant increases across all business units. The increase in BBU segment revenues was primarily attributable to an increase in BBU module and configurable product revenues of approximately $8,471,000. Increases in revenues recorded by the VI Chip and Picor segments for the second quarter of 2018 were associated largely with fulfillment of increased orders for our 48 volt to point-of-load solutions.

Gross margin for the second quarter of 2018 increased $9,953,000, or 38.4%, to $35,883,000, from $25,930,000 for the second quarter of 2017. Gross margin as a percentage of net revenue increased to 48.4% for the second quarter of 2018 compared to 44.9% for the second quarter of 2017. Both increases were primarily due to the increase in net revenues and an improved mix of products shipped.

-28-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Selling, general, and administrative expenses were $15,814,000 for the second quarter of 2018, an increase of $1,278,000, or 8.8%, from $14,536,000 for the second quarter of 2017. Selling, general, and administrative expenses as a percentage of net revenues decreased to 21.3% for the second quarter of 2018 from 25.2% for the second quarter of 2017, primarily due to the increase in net revenues.

The components of the $1,278,000 increase in selling, general and administrative expenses for the second quarter of 2018 from the second quarter of 2017 were as follows (dollars in thousands):

-29-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Research and development expenses were $11,403,000 for the second quarter of 2018, a decrease of $529,000, or 4.4%, compared to $11,932,000 for the second quarter of 2017. As a percentage of net revenues, research and development expenses decreased to 15.4% for the second quarter of 2018 from 20.7% for the second quarter of 2017, primarily due to the increase in net revenues.

The components of the $529,000 decrease in research and development expenses were as follows (dollars in thousands):

-30-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

In May 2018, the Company’s management authorized the closure of GPT by the end of 2018. GPT is one of three Vicor Custom Power (“VCP”) entities, located in Manchester, N.H. Certain of GPT’s products will continue to be manufactured and sold by the two remaining VCP entities. As a result, we recorded a pre-tax charge of $350,000 in the second quarter of 2018, for the cost of severance and other employee-related costs involving cash payments based on each employee’s respective length of service.

The significant components of ‘‘Other income (expense), net’’ for the three months ended June 30, and the changes between the periods were as follows (in thousands):

Our exposure to market risk fluctuations in foreign currency exchange rates relates to the operations of VJCL, for which the functional currency is the Japanese Yen, and all other subsidiaries in Europe and Asia, for which the functional currency is the U.S. Dollar. These other subsidiaries in Europe and Asia experienced unfavorable foreign currency exchange rate fluctuations in 2018 compared to 2017.

Income (loss) before income taxes was $8,272,000 for the second quarter of 2018, as compared to $(178,000) for the second quarter of 2017.

The provision for income taxes and the effective income tax rates for the second quarter of 2018 and the second quarter of 2017 were as follows (dollars in thousands):

The effective tax rate was lower than the statutory tax rate in 2018 due to the utilization of net operating carryforwards and tax credits. The provision for income taxes in 2017 was primarily due to estimated foreign income taxes and for estimated state taxes in jurisdictions in which we do not have net operating loss carryforwards. No tax benefit could be recognized for the majority of our losses during that period due to a full valuation allowance against all net domestic deferred tax assets. The provision and effective income tax rate were relatively high in the second quarter of 2017 as we had previously recorded a tax benefit in the first quarter of 2017.

Net income per diluted share attributable to Vicor Corporation was $0.19 for the second quarter of 2018 as compared to net loss per share of $(0.01) for the second quarter of 2017.

-31-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Six months ended June 30, 2018, compared to six months ended June 30, 2017

Consolidated net revenues for the six months ended June 30, 2018 were $139,465,000, an increase of $27,294,000, or 24.3%, from $112,171,000 for the six months ended June 30, 2017.

Net revenues, by segment, for the six months ended June 30, 2018 and the six months ended June 30, 2017 were as follows (dollars in thousands):

The overall increase in consolidated net revenues for the six months ended June 30, 2018 from the six months ended June 30, 2017 was primarily due to an overall 44.4% increase in bookings for the six months ended June 30, 2018, compared to the six months ended June 30, 2017, with significant increases across all business units. The increase in BBU segment revenues was primarily attributable to an increase in BBU module and configurable product revenues of approximately $10,553,000, VJCL revenues of approximately $1,363,000 and Vicor Custom Power revenues of $631,000. Increases in revenues recorded by the VI Chip and Picor segments for the six months ended June 30, 2018 were associated largely with fulfillment of increased orders for our 48 volt to point-of-load solutions.

Gross margin for the six months ended June 30, 2018 increased $16,512,000, or 33.3%, to $66,094,000 from $49,582,000 for the six months ended June 30, 2017, primarily due to the increase in net revenues. Gross margin as a percentage of net revenues increased to 47.4% for the six month period ended June 30, 2018 compared to 44.2% for the six month period ended June 30, 2017. Both increases were primarily due to the increase in net revenues and an improved mix of products shipped.

-32-

Table of Contents

VICOR CORPORATION

Management’s Discussion and Analysis of

Financial Condition and Results of Operation

June 30, 2018

Selling, general and administrative expenses were $31,213,000 for the six months ended June 30, 2018, an increase of $2,654,000, or 9.3%, compared to $28,559,000 for the six months ended June 30, 2017. Selling, general and administrative expenses as a percentage of net revenues decreased to 22.4% for the six month period ended June 30, 2018 from 25.5% for the six month period ended June 30, 2017, primarily due to the increase in net revenues.

The components of the $2,654,000 increase in selling, general and administrative expenses for the six months ended June 30, 2018 from the six months ended June 30, 2017 were as follows (dollars in thousands):