AEIS 10-Q Quarterly Report Sept. 30, 2017

AEIS 10-Q Quarter ended Sept. 30, 2017

Exhibits

Exhibits

ADVANCED ENERGY INDUSTRIES INC

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10-Q 1 aeis10qq32017.htm 10-Q AEIS Q3 2017 Document

Table Of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

________________________________________________

FORM 10-Q

________________________________________________



þ		QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.
		For the quarterly period ended September 30, 2017
or
o		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: 000-26966

ADVANCED ENERGY INDUSTRIES, INC.

(Exact name of registrant as specified in its charter)



Delaware		84-0846841
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
1625 Sharp Point Drive, Fort Collins, CO		80525
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (970) 221-4670

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 þ No o

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 þ No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):



Large accelerated filer þ	Accelerated filer o	Non-accelerated filer o (Do not check if a smaller reporting company)	Smaller reporting company o	Emerging growth company o

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. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

As of October 26, 2017 there were 39,657,315 shares of the registrant's Common Stock, par value $0.001 per share, outstanding.

ADVANCED ENERGY INDUSTRIES, INC.

FORM 10-Q

TABLE OF CONTENTS



	Page
PART I FINANCIAL STATEMENTS	3

ITEM 1. UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS	3

Condensed Consolidated Balance Sheets	3

Condensed Consolidated Statements of Operations	4

Condensed Consolidated Statements of Comprehensive Income	5

Condensed Consolidated Statements of Cash Flows	6

Notes to Condensed Consolidated Financial Statements	7

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	19

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	27

ITEM 4. CONTROLS AND PROCEDURES	28

PART II OTHER INFORMATION	29

ITEM 1. LEGAL PROCEEDINGS	29

ITEM 1A. RISK FACTORS	29

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	40

ITEM 6. EXHIBITS	40

SIGNATURES	41
EX-31.1
EX-31.2
EX-32.1
EX-32.2

Table Of Contents

PART I FINANCIAL STATEMENTS


ITEM 1.	UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

ADVANCED ENERGY INDUSTRIES, INC.

Unaudited Condensed Consolidated Balance Sheets

(In thousands, except per share amounts)



	September 30,			December 31,
	2017			2016
ASSETS
Current assets:
Cash and cash equivalents	$	366,572		$	281,953
Marketable securities	3,046			4,737
Accounts receivable, net of allowances of $2,232 and $1,943, respectively	74,993			75,667
Inventories	73,520			55,770
Income taxes receivable	6,380			1,482
Other current assets	8,678			9,324
Current assets of discontinued operations	7,770			9,401
Total current assets	540,959			438,334
Deposits and other assets	2,432			1,835
Property and equipment, net	15,736			13,337
Goodwill	53,509			42,125
Intangible assets, net	34,435			28,071
Deferred income tax assets	58,590			32,197
Non-current assets of discontinued operations	15,630			15,630
TOTAL ASSETS	$	721,291		$	571,529
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	41,275		$	46,255
Income taxes payable	9			1,778
Accrued payroll and employee benefits	16,241			13,230
Customer deposits	5,410			5,774
Other accrued expenses	18,394			14,590
Current liabilities of discontinued operations	9,667			13,419
Total current liabilities	90,996			95,046
Deferred income tax liabilities	2,049			1,008
Uncertain tax positions	4,383			2,538
Long term deferred revenue	36,528			39,170
Other long-term liabilities	22,662			20,536
Non-current liabilities of discontinued operations	16,287			21,157
Total liabilities	172,905			179,455
Stockholders’ equity:
Preferred stock, $0.001 par value, 1,000 shares authorized, none issued and outstanding	—			—
Common stock, $0.001 par value, 70,000 shares authorized; 39,624 and 39,712 issued and outstanding, respectively	40			40
Additional paid-in capital	187,407			203,603
Retained earnings	362,815			195,364
Accumulated other comprehensive loss	(1,876		)	(6,933		)
Total stockholders’ equity	548,386			392,074
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$	721,291		$	571,529

The accompanying notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

Table Of Contents

ADVANCED ENERGY INDUSTRIES, INC.

Unaudited Condensed Consolidated Statements of Operations

(In thousands, except per share amounts)



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016

Sales:
Product	$	152,363		$	107,650		$	424,478		$	294,695
Services	24,212			18,902			67,320			53,666
Total sales	176,575			126,552			491,798			348,361
Cost of sales:
Product	72,146			49,835			198,754			137,984
Services	12,195			10,594			34,838			28,748
Total cost of sales	84,341			60,429			233,592			166,732
Gross profit	92,234			66,123			258,206			181,629
Operating expenses:
Research and development	14,629			11,293			41,742			33,324
Selling, general and administrative	24,692			19,421			70,580			56,814
Amortization of intangible assets	1,240			1,048			3,176			3,180
Total operating expenses	40,561			31,762			115,498			93,318
Operating income	51,673			34,361			142,708			88,311
Other (expense) income, net	153			(55		)	(3,138		)	1,138
Income from continuing operations, before income taxes	51,826			34,306			139,570			89,449
Provision for income taxes	(31,968		)	5,268			(25,538		)	12,937
Income from continuing operations, net of income taxes	83,794			29,038			165,108			76,512
Income from discontinued operations, net of income taxes	70			1,323			2,343			6,661
Net income	$	83,864		$	30,361		$	167,451		$	83,173

Basic weighted-average common shares outstanding	39,786			39,681			39,787			39,723
Diluted weighted-average common shares outstanding	40,172			39,967			40,207			40,015

Earnings per share:
Continuing operations:
Basic earnings per share	$	2.11		$	0.73		$	4.15		$	1.93
Diluted earnings per share	$	2.09		$	0.73		$	4.11		$	1.91
Discontinued operations:
Basic earnings per share	$	—		$	0.03		$	0.06		$	0.17
Diluted earnings per share	$	—		$	0.03		$	0.06		$	0.17
Net income:
Basic earnings per share	$	2.11		$	0.77		$	4.21		$	2.09
Diluted earnings per share	$	2.09		$	0.76		$	4.16		$	2.08

The accompanying notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

Table Of Contents

ADVANCED ENERGY INDUSTRIES, INC.

Unaudited Condensed Consolidated Statements of Comprehensive Income

(In thousands)



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net income	$	83,864		$	30,361		$	167,451		$	83,173
Other comprehensive income, net of tax:
Foreign currency translation adjustment	807			1,125			5,333			1,389
Unrealized (loss) gain on marketable securities	(1		)	(1		)	(22		)	9
Minimum benefit retirement liability	(100		)	(16		)	(254		)	(40		)
Comprehensive income	$	84,570		$	31,469		$	172,508		$	84,531

The accompanying notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

Table Of Contents

ADVANCED ENERGY INDUSTRIES, INC.

Unaudited Condensed Consolidated Statements of Cash Flows

(In thousands)



	Nine Months Ended September 30,
	2017			2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	167,451		$	83,173
Income from discontinued operations, net of income taxes	2,343			6,661
Income from continuing operations, net of income taxes	165,108			76,512
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,792			5,938
Stock-based compensation expense	10,707			4,299
Provision for deferred income taxes	(26,185		)	—
Loss on foreign exchange hedge	3,489			—
Net loss on disposal of assets	106			259
Changes in operating assets and liabilities, net of assets acquired:
Accounts receivable	4,119			(13,679		)
Inventories	(15,062		)	(5,261		)
Other current assets	(430		)	(73		)
Accounts payable	(5,725		)	10,619
Other current liabilities and accrued expenses	3,763			1,489
Income taxes	(6,375		)	2,562
Net cash provided by operating activities from continuing operations	140,307			82,665
Net cash used in operating activities from discontinued operations	(7,293		)	(4,538		)
Net cash provided by operating activities	133,014			78,127
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities	(86		)	(745		)
Proceeds from sale of marketable securities	1,883			7,161
Acquisition, net of cash acquired	(17,347		)	—
Purchase of foreign exchange hedge	(3,489		)	—
Purchases of property and equipment	(5,646		)	(4,524		)
Net cash (used in) provided by investing activities from continuing operations	(24,685		)	1,892
Net cash used in investing activities from discontinued operations	—			—
Net cash (used in) provided by investing activities	(24,685		)	1,892
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase and retirement of common stock	(24,998		)	—
Net (payments) proceeds related to stock-based award activities	(1,904		)	1,753
Other financing activities	2			(3		)
Net cash (used in) provided by financing activities from continuing operations	(26,900		)	1,750
Net cash used in financing activities from discontinued operations	—			(24		)
Net cash (used in) provided by financing activities	(26,900		)	1,726
EFFECT OF CURRENCY TRANSLATION ON CASH	1,138			(550		)
INCREASE IN CASH AND CASH EQUIVALENTS	82,567			81,195
CASH AND CASH EQUIVALENTS, beginning of period	289,517			169,720
CASH AND CASH EQUIVALENTS, end of period	372,084			250,915
Less cash and cash equivalents from discontinued operations	5,512			6,623
CASH AND CASH EQUIVALENTS FROM CONTINUING OPERATIONS, end of period	$	366,572		$	244,292
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	$	27		$	173
Cash paid for income taxes	4,599			4,930
Cash received for refunds of income taxes	1,153			444
Cash held in banks outside the United States	271,777			176,815

The accompanying notes are an integral part of these Unaudited Condensed Consolidated Financial Statements.

Table Of Contents

ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except per share data)


NOTE 1.	BASIS OF PRESENTATION

Advanced Energy Industries, Inc., a Delaware corporation, and its wholly-owned subsidiaries ("we," "us," "our," "Advanced Energy," or the "Company") design, manufacture, sell, and support power conversion products that transform electrical power into various usable forms. Our products enable manufacturing processes that use thin films for various products, such as semiconductor devices, flat panel displays, solar cells, architectural glass, optical coating and decorative and functional coating for consumer products. We also supply thermal instrumentation products for advanced temperature control in the thin film process for these same markets. Our power control modules provide power control solutions for industrial applications where heat treatment and processing are used such as glass manufacturing, metal fabrication and treatment, and material and chemical processing. Our high voltage power supplies and modules are used in applications such as semiconductor ion implantation, scanning electron microscopy, chemical analysis such as mass spectrometry and various applications using X-ray technology and electron guns for both analytical and processing applications. Our network of global service support centers provides a recurring revenue opportunity as we offer repair services, conversions, upgrades, and refurbishments and sales of used equipment to companies using our products. As of December 31, 2015, we discontinued the production, engineering, and sales of our solar inverter product line. As such, all solar inverter revenues, costs, assets and liabilities are reported in Discontinued Operations for all periods presented herein. See

Note 3. Discontinued Operations.

In the opinion of management, the accompanying Unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting of normal, recurring adjustments, necessary to present fairly the financial position of the Company as of September 30, 2017 , the results of our operations for the three and nine months ended September 30, 2017 and 2016 , and cash flows for the nine months ended September 30, 2017 and 2016 .

The Unaudited Condensed Consolidated Financial Statements included herein have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") have been condensed or omitted pursuant to such rules and regulations. These Unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and Notes thereto contained in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016 and other financial information filed with the SEC.

ESTIMATES AND ASSUMPTIONS

The preparation of our Unaudited Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires us to make estimates, assumptions and judgments that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. We believe that the significant estimates, assumptions, and judgments when accounting for items and matters such as allowances for doubtful accounts, excess and obsolete inventory, warranty reserves, acquisitions, asset valuations, goodwill, asset life, depreciation, amortization, recoverability of assets, impairments, deferred revenue, stock option and restricted stock grants, taxes, and other provisions are reasonable, based upon information available at the time they are made. Actual results may differ from these estimates.

CRITICAL ACCOUNTING POLICIES

Our accounting policies are described in our audited Consolidated Financial Statements and Notes contained in our Annual Report on Form 10-K for the year ended December 31, 2016 .

NEW ACCOUNTING STANDARDS

From time to time, the Financial Accounting Standards Board ("FASB") or other standards setting bodies issue new accounting pronouncements. Updates to the FASB Accounting Standards Codification (“ASC”) are communicated through issuance of an Accounting Standards Update (“ASU”). Unless otherwise discussed, we believe that the impact of recently issued guidance, whether adopted or to be adopted in the future, is not expected to have a material impact on the Consolidated Financial Statements upon adoption.

Table of Contents

ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers" and has subsequently issued several supplemental and/or clarifying ASUs (collectively known as "ASC 606"). ASC 606 implements a five step model for how an entity should recognize revenue in order to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for fiscal periods beginning after December 15, 2017 and for the interim periods within that year.

Advanced Energy has established a cross-functional implementation team to analyze its current portfolio of customer contracts. We have completed the disaggregation of the related sales order data and have begun testing contract elements and considering supporting software applications. The implementation team is also responsible for identifying and implementing changes to existing business processes, controls, and systems in order to support revenue recognition and disclosure under the new standard. Based on our preliminary review of our customer contracts, we expect that revenue with the majority of our customers will continue to be recognized at a point in time, generally upon shipment of products, consistent with our current revenue recognition model. Upon adoption of ASC 606, however, we also believe some of our revenue from sales of products to customers will be recognized in advance of actual customer billing, (for example: just in time inventory programs) due to the terms of certain customer contracts. As such, various balance sheet line items will be impacted. Advanced Energy believes the adoption of ASC606 will have an impact on both the timing of revenue recognition and various line items within the Consolidated Balance Sheet.

The standard permits the use of either the retrospective or cumulative effect transition method. Our team is continuing to evaluate the impact that the adoption will have on our Consolidated Financial Statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing reporting.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)," to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within the year of adoption. Early adoption is permitted. Advanced Energy is currently assessing and has not yet determined the impact ASU 2016-02 may have on its Consolidated Financial Statements.

In October 2016, the FASB issued ASU 2016-16, “Accounting for Income Taxes: Intra-Entity Asset Transfers of Assets Other than Inventory.” ASU 2016-16 changes the timing of income tax recognition for an intercompany sale of assets. ASU 2016-16 requires the seller’s tax effects and the buyer’s deferred taxes to be recognized immediately upon the sale instead of deferring accounting for the income tax implications until the assets are sold to a third party or recovered through use. ASU 2016-16 is effective for fiscal years beginning after December 15, 2017 including interim periods within the year of adoption. Modified retrospective adoption is required with any cumulative-effect adjustment recorded to retained earnings as of the beginning of the period of adoption. Early adoption is allowed but only if adopted in the first quarter of fiscal year 2017. Advanced Energy is currently assessing the impact of ASU 2016-16 adoption and while it has not completed the assessment, it has determined the impact of ASU 2016-16 adoption will require the recognition of deferred tax assets totaling approximately $18 million to $22 million with a corresponding increase to Retained Earnings in its Consolidated Financial Statements upon adoption.


NOTE 2.	BUSINESS ACQUISITION

On July 3, 2017, Advanced Energy acquired all of the issued and outstanding shares of capital stock of Excelsys Holdings Limited (“Excelsys”), an electronics manufacturer in Cork, Ireland. This acquisition is part of Advanced Energy’s strategy to continue to grow and diversify its revenue through organic and inorganic opportunities. The high-efficiency, configurable power supplies that Excelsys manufactures for medical and industrial applications will further enhance Advanced Energy’s product portfolio.

The components of the fair value of the total consideration transferred for the Excelsys acquisition are as follows:



Cash paid to owners	$	18,512
Cash acquired	(1,165		)
Total fair value of consideration transferred	$	17,347

Table of Contents

ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

The following table summarizes estimated fair values of the assets acquired and liabilities assumed as of July 3, 2017:



Accounts receivable	$	1,930
Inventories	1,048
Income taxes receivable	558
Other current assets	47
Property and equipment	256
Deferred income tax asset	35
Accounts payable	(1,342		)
Income taxes payable	(34		)
Other accrued expenses	(719		)
Deferred income tax liabilities	(946		)
	833
Amortizable intangible assets:
Tradename	182
Customer relationships	1,595
Technology	5,808
Total amortizable intangible assets	7,585
Total identifiable net assets	8,418
Goodwill	8,929
Total fair value of consideration transferred	$	17,347

A summary of the intangible assets acquired, amortization method and estimated useful lives as of July 3, 2017 follows :



	Amount		Amortization Method	Useful Life
Tradename	$	182	Straight-line	5
Customer relationships	1,595		Straight-line	10
Technology	5,808		Straight-line	10
	$	7,585

Goodwill and intangible assets are recorded in the functional currency of the entity and are subject to changes due to translation at each balance sheet date. The goodwill associated with the acquisition is the result of expected synergies and expansion of the technology into adjacent markets we already serve. Advanced Energy is in the process of finalizing the assessment of fair value for the assets acquired and liabilities assumed.


NOTE 3.	DISCONTINUED OPERATIONS

In December 2015, we completed the wind down of engineering, manufacturing and sales of our solar inverter product line (the "inverter business"). Accordingly, the results of our inverter business have been reflected as “Income from discontinued operations, net of income taxes” on our Unaudited Condensed Consolidated Statements of Operations for all periods presented herein.

The effect of extended inverter warranty sales to our customers continues to be reflected in deferred revenue in our Unaudited Condensed Consolidated Balance Sheets. Deferred revenue for extended inverter warranties and the associated costs of warranty service will be reflected in Sales and Cost of goods sold, respectively, from continuing operations in future periods in our Consolidated Statement of Operations, as the deferred revenue is earned and the associated services are rendered. Extended warranties related to the inverter product line are no longer offered.

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

The items included in "Income from discontinued operations, net of income taxes" are as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Sales	$	—		$	—		$	—		$	—
Cost of sales	944			3,095			47			672
Total operating income (including restructuring)	(441		)	(1,473		)	(1,587		)	(3,759		)
Operating income (loss) from discontinued operations	(503		)	(1,622		)	1,540			3,087
Other income (loss)	(86		)	(14		)	291			325
Income (loss) from discontinued operations before income taxes	(589		)	(1,636		)	1,831			3,412
Provision (benefit) for income taxes	(659		)	(2,959		)	(512		)	(3,249		)
Income from discontinued operations, net of income taxes	$	70		$	1,323		$	2,343		$	6,661

Assets and Liabilities of discontinued operations within the Condensed Consolidated Balance Sheets are comprised of the following:



	September 30,		December 31,
	2017		2016
Cash and cash equivalents	$	5,512	$	7,564
Accounts and other receivables, net	1,372		1,670
Inventories	886		167
Current assets of discontinued operations	$	7,770	$	9,401

Other assets	$	70	$	70
Deferred income tax assets	15,560		15,560
Non-current assets of discontinued operations	$	15,630	$	15,630

Accounts payable and other accrued expenses	$	988	$	3,684
Accrued warranty	8,675		9,254
Accrued restructuring	4		481
Current liabilities of discontinued operations	$	9,667	$	13,419

Accrued warranty	$	16,054	$	20,976
Other liabilities	233		181
Non-current liabilities of discontinued operations	$	16,287	$	21,157


NOTE 4.	INCOME TAXES

The following table sets out the tax expense and the effective tax rate for our income from continuing operations:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Income from continuing operations before income taxes	$	51,826		$	34,306		$	139,570		$	89,449
Provision (benefit) for income taxes	(31,968		)	5,268			(25,538		)	12,937
Effective tax rate	(61.7		)%	15.4		%	(18.3		)%	14.5		%

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

The effective tax rates for the three and nine months ended September 30, 2017 differ from the federal statutory rate of 35% due to the benefit of earnings in foreign jurisdictions which are subject to lower tax rates as well as the recognition of excess tax benefits attributable to stock based compensation as a component of tax expense in accordance with ASU 2016-09 “Improvements to Employee Share-Based Payment Accounting” which was implemented in December 2016. In addition, after several attempts by the company to sell its remaining solar businesses, management elected to liquidate its U.S. solar business during the three months ended September 30, 2017 and has accordingly recognized a tax benefit of $40.2 million for a worthless stock tax deduction.

The effective tax rates for the three and nine months ended September 30, 2016 differ from the federal statutory rate of 35% primarily due to the benefit of the earnings in foreign jurisdictions which are subject to lower tax rates.

Our policy is to classify accrued interest and penalties related to unrecognized tax benefits in our income tax provision. The amount of interest and penalties accrued related to our unrecognized tax benefits for the three months ended September 30, 2017 and 2016 was $0.1 million , and for the nine months ended September 30, 2017 and 2016 was $0.2 million and $0.3 million , respectively.


NOTE 5.	EARNINGS PER SHARE

Basic earnings per share ("EPS") is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding during the period. The computation of our diluted EPS is similar to the computation of our basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding (using the if-converted and treasury stock methods), if our outstanding stock options and restricted stock units had been converted to common shares, and if such assumed conversion is dilutive.

The following is a reconciliation of the weighted-average shares outstanding used in the calculation of basic and diluted EPS for the three and nine months ended September 30, 2017 and 2016 :



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Income from continuing operations, net of income taxes	$	83,794	$	29,038	$	165,108	$	76,512

Basic weighted-average common shares outstanding	39,786		39,681		39,787		39,723
Assumed exercise of dilutive stock options and restricted stock units	386		286		420		292
Diluted weighted-average common shares outstanding	40,172		39,967		40,207		40,015
Continuing operations:
Basic earnings per share	$	2.11	$	0.73	$	4.15	$	1.93
Diluted earnings per share	$	2.09	$	0.73	$	4.11	$	1.91

The following restricted stock units were excluded in the computation of diluted earnings per share because they were anti-dilutive:



	Three Months Ended September 30,		Nine Months Ended September 30,
	2017	2016	2017	2016
Restricted stock units	—	1	1	1

Stock Buyback

In September 2015, our Board of Directors authorized a program to repurchase up to $150.0 million of our stock over a thirty-month period. In August 2017, we entered into a Fixed Dollar Share Repurchase Agreement to repurchase $25.0 million of shares of our common stock in the open market. A total of 351,292 shares of our common stock was repurchased under the Share Repurchase Agreement at an average price of $71.16 per share. All share repurchases were executed in the open market, and no shares were repurchased from related parties. The $25.0 million share repurchase was recognized as a reduction to

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

Additional paid-in capital. Repurchased shares were retired and assumed the status of authorized and unissued shares. As of September 30, 2017 , we had $75.0 million remaining for the authorized repurchase of shares.


NOTE 6.	MARKETABLE SECURITIES AND ASSETS MEASURED AT FAIR VALUE

Our investments with original maturities of more than three months at time of purchase and that are intended to be held for no more than 12 months, are considered marketable securities available for sale.

Our marketable securities consist of certificates of deposit. The relative cost and fair value of our marketable securities are as follows:



	September 30, 2017				December 31, 2016
	Cost		Fair Value		Cost		Fair Value
Total marketable securities	$	3,044	$	3,046	$	4,735	$	4,737

The maturities of our marketable securities available for sale as of September 30, 2017 are as follows:

The value and liquidity of the marketable securities we hold are affected by market conditions, as well as the ability of the issuers of such securities to make principal and interest payments when due, and the functioning of the markets in which these securities are traded. As of September 30, 2017 , we do not believe any of the underlying issuers of our marketable securities are at risk of default.

The following tables present information about the fair value hierarchy used to measure our marketable securities at fair value, on a recurring basis, as of September 30, 2017 and December 31, 2016 . We did not have any financial liabilities measured at fair value, on a recurring basis, as of September 30, 2017 and December 31, 2016 .



September 30, 2017	Level 1		Level 2		Level 3		Total
Total marketable securities	$	—	$	3,046	$	—	$	3,046

December 31, 2016	Level 1		Level 2		Level 3		Total
Total marketable securities	$	—	$	4,737	$	—	$	4,737

There were no transfers in or out of Level 1, 2, or 3 fair value measurements during the three and nine months ended September 30, 2017 .


NOTE 7.	DERIVATIVE FINANCIAL INSTRUMENTS

We are impacted by changes in foreign currency exchange rates. We attempt to mitigate these risks through the use of derivative financial instruments, primarily forward currency exchange rate contracts. During the three and nine months ended September 30, 2017 and 2016 , we entered into currency exchange rate forward contracts to attempt to mitigate the exchange rate risk associated with intercompany debt denominated in nonfunctional currencies. These derivative instruments are not designated as hedges for accounting purposes; however, they tend to offset the fluctuations of our intercompany debt due to foreign currency exchange rate changes. These forward contracts are typically for one month periods. At September 30, 2017 , we had one outstanding Euro forward contract.We did not have any currency exchange rate contracts outstanding as of December 31, 2016 .

The notional amount of the exchange contracts at September 30, 2017 was $10.6 million and the fair value of these contracts was not significant at September 30, 2017 .

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

During the three and nine months ended September 30, 2017 and 2016 the gains and losses recorded related to the foreign currency exchange contracts are as follows:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
Loss from foreign currency exchange contracts	$	(469	)	$	—	$	(1,096	)	$	(569	)

These losses were offset by corresponding gains and losses on the revaluation of the underlying intercompany debt and both are included as a component of Other (expense) income, net , in our Unaudited Condensed Consolidated Statements of Operations.

During the first quarter of 2017 we entered into a foreign currency exchange rate forward contract at a cost of $3.5 million , to mitigate the exchange rate risk associated with a planned offshore acquisition which was not consummated. This derivative instrument was designated as a hedge for accounting purposes. The hedge expired upon maturity in the first quarter of 2017. The cost of the forward contract is recorded as a component of Other (expense) income, net in our Condensed Consolidated Statement of Operations.


NOTE 8.	INVENTORIES

Our inventories are valued at the lower of cost or market and computed on a first-in, first-out (FIFO) basis. Components of Inventories are as follows:



	September 30,		December 31,
	2017		2016
Parts and raw materials	$	52,991	$	43,278
Work in process	8,901		5,292
Finished goods	11,628		7,200
Inventories	$	73,520	$	55,770


NOTE 9.	PROPERTY AND EQUIPMENT

Property and equipment are as follows:



	September 30,			December 31,
	2017			2016
Buildings and land	$	1,656		$	1,581
Machinery and equipment	35,270			32,743
Computer and communication equipment	26,452			24,637
Furniture and fixtures	1,379			1,267
Vehicles	340			357
Leasehold improvements	16,538			15,546
Construction in process	1,072			644
	82,707			76,775
Less: Accumulated depreciation	(66,971		)	(63,438		)
Property and equipment, net	$	15,736		$	13,337

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

Depreciation expense included in our income from continuing operations, is as follows:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Depreciation expense	$	1,333	$	845	$	3,616	$	2,758


NOTE 10.	GOODWILL

The following summarizes the changes in goodwill during the nine months ended September 30, 2017 :



	September 30, 2017		Additions		Effect of Changes in Exchange Rates		December 31, 2016
Goodwill	$	53,509	$	8,929	$	2,455	$	42,125

NOTE 11. INTANGIBLE ASSETS

Intangible assets subject to amortization consisted of the following as of September 30, 2017 and December 31, 2016:



September 30, 2017	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Technology-based	$	18,537	$	(5,082	)	$	13,455
Customer relationships	29,865		(10,012		)	19,853
Trademarks and other	2,601		(1,474		)	1,127
Total amortizable intangibles	$	51,003	$	(16,568	)	$	34,435



December 31, 2016	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Technology-based	$	11,643	$	(3,673	)	$	7,970
Customer relationships	26,608		(7,451		)	19,157
Trademarks and other	2,223		(1,279		)	944
Total amortizable intangibles	$	40,474	$	(12,403	)	$	28,071

Amortization expense for our intangible assets included in our income from continuing operations is as follows:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Amortization expense	$	1,240	$	1,048	$	3,176	$	3,180

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

Amortization expense related to intangible assets for each of the five years 2017 (remaining) through 2021 and thereafter is as follows:



Year Ending December 31,
2017 (remaining)	$	1,180
2018	4,842
2019	4,825
2020	4,146
2021	4,043
Thereafter	15,399
	$	34,435


NOTE 12.	WARRANTIES

Provisions of our sales agreements include customary product warranties, ranging from 12 months to 24 months following shipment. The estimated cost of warranties is recorded when revenue is recognized and is based upon historical experience by product, configuration and geographic region.

We establish accruals for our warranty obligations that are probable to result in future costs. The warranty accrual is included in our Other accrued expenses in our balance sheet. Changes in our product warranty accrual were as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Balances at beginning of period	$	3,933		$	1,933		$	2,329		$	1,633
Increases to accruals	333			789			2,722			1,726
Warranty expenditures	(439		)	(197		)	(1,236		)	(811		)
Effect of changes in exchange rates	6			(8		)	18			(31		)
Balances at end of period	$	3,833		$	2,517		$	3,833		$	2,517


NOTE 13.	PENSION LIABILITY

In connection with the HiTek acquisition on April 12, 2014, we acquired the HiTek Power Limited Pension Scheme ("HPLPS"). The HPLPS has been closed to new participants and additional accruals since 2006. In order to measure the expense and related benefit obligation, various assumptions are made including discount rates used to value the obligation, expected return on plan assets used to fund these expenses and estimated future inflation rates. These assumptions are based on historical experience as well as current facts and circumstances. An actuarial analysis is used to measure the expense and liability associated with pension benefits. We are committed to make annual fixed payments of $0.9 million into the HPLPS through April 30, 2024, and then $1.8 million from May 1, 2024 through November 30, 2033.

The net pension liability is included in Other long-term liabilities in our balance sheet as follows:



	September 30,		December 31,
	2017		2016
Pension liability	$	20,353	$	18,836

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

The components of the net periodic pension expense for the three and nine months ended September 30, 2017 and 2016 were as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Net periodic (benefit) expense:
Expected return on plan assets	$	(128	)	$	(121	)	$	(394	)	$	(385	)
Interest cost	242			235			742			747
Amortization of actuarial gains and losses	64			80			197			255
Net periodic expense	$	178		$	194		$	545		$	617


NOTE 14.	STOCK-BASED COMPENSATION

On May 4, 2017, the shareholders approved the Company's 2017 Omnibus Incentive Plan ("the 2017 Plan") and all shares that were then available for issuance under the 2008 Omnibus Incentive Plan are now available for issuance under the 2017 Plan. We have reserved a total of 4,936,598 shares of Advanced Energy’s common stock for issuance under the 2017 Plan. The 2017 Plan provides for the grant of stock options, stock appreciation rights, restricted stock, stock units (including deferred stock units), unrestricted stock, and dividend equivalent rights. Any of the awards issued under the 2017 Plan may be issued as performance based awards to align compensation awards to the attainment of annual or long-term performance goals. As of September 30, 2017 , there were 4,189,179 shares available for grant under the 2017 Plan.

Stock option awards are granted with an exercise price equal to the market price of our stock at the date of grant and have either a time based vesting schedule of three or four years , or a performance based vesting schedule based upon achievement of organizational performance goals over a three year period, and a term of 10 years . The fair value of each award was estimated on the date of grant using the Black-Scholes-Merton option pricing model.

Restricted stock units (“RSU’s”) are granted with either a time based vesting schedule of three or four years , or a performance based vesting schedule based upon achievement of organizational performance goals over a three year period. The fair value of each RSU is determined based upon the closing fair market value of our common stock on the grant date.

We recognize stock-based compensation expense based on the fair value of the awards issued and the functional area of the employee receiving the award. Stock-based compensation for the three and nine months ended September 30, 2017 and 2016 is as follows:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stock-based compensation expense	$	3,453	$	1,301	$	10,707	$	4,299

A summary of activity for stock option awards during the three and nine months ended September 30, 2017 is as follows:



	Three Months Ended September 30, 2017				Nine Months Ended September 30, 2017
	Number of Options		Weighted-Average Exercise Price per Share		Number of Options		Weighted-Average Exercise Price per Share
Options outstanding at beginning of period	375		$	17.95	474		$	17.47
Options exercised	(20	)	$	14.58	(114	)	$	15.35
Options forfeited	—		$	—	(5	)	$	18.19
Options outstanding at end of period	355		$	18.14	355		$	18.14

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)

A summary of activity for RSU awards for the three and nine months ended September 30, 2017 is as follows:



	Three Months Ended September 30, 2017				Nine Months Ended September 30, 2017
	Number of RSUs		Weighted-Average Grant Date Fair Value		Number of RSUs		Weighted- Average Grant Date Fair Value
RSUs outstanding at beginning of period	411		$	49.56	354		$	29.60
RSUs granted	2		$	74.56	250		$	63.59
RSUs vested	(20	)	$	28.99	(205	)	$	30.60
RSUs forfeited	(1	)	$	34.12	(7	)	$	31.73
RSUs outstanding at end of period	392		$	50.71	392		$	50.71


NOTE 15.	COMMITMENTS AND CONTINGENCIES

We have firm purchase commitments and agreements with various suppliers to ensure the availability of components. The obligation as of September 30, 2017 is approximately $95.5 million . Our policy with respect to all purchase commitments is to record losses, if any, when they are probable and reasonably estimable. We continuously monitor these commitments for exposure to potential losses and will record a provision for losses when it is deemed necessary.


NOTE 16.	RELATED PARTY TRANSACTIONS

Members of our Board of Directors hold various executive positions and serve as directors at other companies, including companies that are our customers. Sales to our related party customers for the three and nine months ended September 30, 2017 and 2016 were as follows:



	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Sales to related parties	$	648	$	673	$	1,255	$	896
Number of related party customers	1		2		1		3

Our accounts receivable balance from related party customers with outstanding balances as of September 30, 2017 and December 31, 2016 was as follows:



	September 30,		December 31,
	2017		2016
Accounts receivable from related parties	$	277	$	—
Number of related party customers	1		—

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ADVANCED ENERGY INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

(in thousands except per share data)


NOTE 17.	SIGNIFICANT CUSTOMER INFORMATION

The following table summarizes sales, and percentages of sales, by customers that individually accounted for 10% or more of our sales for the three and nine months ended September 30, 2017 and 2016 :



	Three Months Ended September 30,
	2017		% of Total Sales		2016		% of Total Sales
Applied Materials, Inc.	$	50,078	28.4	%	$	45,806	36.2	%
LAM Research	46,315		26.2	%	24,305		19.2	%

	Nine Months Ended September 30,
	2017		% of Total Sales		2016		% of Total Sales
Applied Materials, Inc.	$	165,239	33.6	%	$	118,364	34.0	%
LAM Research	114,325		23.2	%	73,319		21.0	%

The following table summarizes the accounts receivable balances, and percentages of the total accounts receivable, for customers that individually accounted for 10% or more of accounts receivable as of September 30, 2017 and December 31, 2016 :



	September 30,				December 31,
	2017				2016
Applied Materials, Inc.	$	32,681	43.6	%	$	31,078	41.1	%
LAM Research	3,550		4.7	%	14,317		18.9	%

Our sales to Applied Materials, Inc. and LAM Research include precision power products used in semiconductor processing and solar and flat panel display. No other customer accounted for 10% or more of our sales or accounts receivable balances during these periods.


NOTE 18.	CREDIT FACILITY

On July 28, 2017, the Company entered into a Loan Agreement (the “Loan Agreement”) with Bank of America N.A. ("BA") which provides a revolving line of credit of up to $100.0 million subject to certain funding conditions through July 28, 2022 . Interest on amounts drawn shall be paid quarterly based upon the LIBOR Daily Floating Rate then in effect, plus between one and one-quarter ( 1.25% ) and one and three-quarters ( 1.75% ) percentage points depending on the Funded Debt to EBITDA ratio. As of September 30, 2017 , the interest rate was 2.49% .The obligations under the Loan Agreement are unsecured until the Funded Debt to EBITDA ratio exceeds 2.0 to 1.0, at which time the Company and certain affiliates’ tangible and intangible personal property will be subject to a first priority, perfected lien and security interest in favor of BA pursuant to a Security Agreement. The Loan Agreement requires us to pay certain fees to the lenders. During the nine months ended September 30, 2017 , we had less than $0.1 million of expenses related to interest and unused line of credit fees. Our credit availability under the Loan Agreement was $100.0 million at September 30, 2017 .

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ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Special Note on Forward-Looking Statements

The following discussion contains, in addition to historical information, 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. Statements in this report that are not historical information are forward-looking statements. For example, statements relating to our beliefs, expectations and plans are forward-looking statements, as are statements that certain actions, conditions or circumstances will continue. The inclusion of words such as "anticipate," "expect," "estimate," "can," "may," "might," "continue," "enables," "plan," "intend," "should," "could," "would," "likely," "potential," or "believe," as well as statements that events or circumstances "will" occur or continue, indicate forward-looking statements. Forward-looking statements involve risks and uncertainties, which are difficult to predict and many of which are beyond our control. Therefore, actual results could differ materially and adversely from those expressed in any forward-looking statements. Neither we nor any other person assumes responsibility for the accuracy and completeness of such forward-looking statements and readers are cautioned not to place undue reliance on forward-looking statements.

For additional information regarding factors that may affect our actual financial condition, results of operations and accuracy of our forward-looking statements, see the information under the caption "Risk Factors" in Part II, Item 1A of this Quarterly Report on Form 10-Q and, in our Annual Report on Form 10-K for the year ended December 31, 2016 . We undertake no obligation to revise or update any forward-looking statements for any reason.

BUSINESS OVERVIEW

We design, manufacture, sell and support precision power products that transform electrical power into various usable forms. Our power conversion products refine, modify and control the raw electrical power from a utility and convert it into power that is predictable, repeatable and customizable. Our products enable thin film manufacturing processes such as plasma enhanced chemical and physical deposition and etch for various semiconductor and industrial products, industrial thermal applications for material and chemical processes, and specialty power for critical industrial applications. We also supply thermal instrumentation products for advanced temperature control in these markets. Our network of global service support centers provides local repair and field service capability in key regions as well as provides upgrades and refurbishment services, and sales of used equipment to businesses that use our products. The markets we serve include:


•	Semiconductor capital equipment market - Customers in the semiconductor capital equipment market incorporate our products into equipment that make integrated circuits. Our power conversion systems provide the energy to enable thin film processes, such as deposition and etch, and high voltage applications such as ion implant, wafer inspection and metrology.


•	Industrial power capital equipment market - Our industrial power capital market is comprised of products for Thin Films Industrial Power and Specialty Power applications.


◦	Thin Films Industrial Power applications include glass coating, glass manufacturing, flat panel displays, solar cell manufacturing, and similar thin film manufacturing, including data storage, hard and optical coating.


◦	Specialty Power applications include power control modules for metal fabrication and treatment, and material and chemical processing. Our high voltage industrial applications include scanning electron microscopy, medical equipment, and instrumentation applications such as x-ray and mass spectroscopy, as well as general electron gun sources for scientific and industrial applications.

◦

Our thermal instrumentation products measure the temperature of the processed substrate or the process chamber. Our remote plasma sources deliver ionized gases for reactive chemical processes used in cleaning, surface treatment, and gas abatement. Precise control over the energy delivered to plasma-based processes enables the production of integrated circuits with reduced feature sizes and increased speed and performance.

The analysis presented below is organized to provide the information we believe will be helpful for understanding our historical performance and relevant trends going forward. This discussion should be read in conjunction with our Unaudited Condensed Consolidated Financial Statements in Part I, Item 1 of this report, including the notes thereto. Also included in the following analysis are measures that are not in accordance with U.S. GAAP. A reconciliation of the non-GAAP measures to U.S. GAAP is provided below.

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Results of Continuing Operations

The following table sets forth certain data, and the percentage of sales each item reflects, derived from our Unaudited Condensed Consolidated Statements of Operations for the periods indicated:



	Three Months Ended September 30,										Nine Months Ended September 30,
	2017					2016					2017					2016
Sales	$	176,575		100.0	%	$	126,552		100.0	%	$	491,798		100.0	%	$	348,361	100.0	%
Gross profit	92,234			52.2		66,123			52.2		258,206			52.5		181,629		52.1
Operating expenses	40,561			23.0		31,762			25.1		115,498			23.5		93,318		26.8
Operating income from continuing operations	51,673			29.2		34,361			27.1		142,708			29.0		88,311		25.3
Other income (expense), net	153			0.1		(55		)	—		(3,138		)	(0.6	)	1,138		0.3
Income from continuing operations before income taxes	51,826			29.3		34,306			27.1		139,570			28.4		89,449		25.6
Provision for income taxes	(31,968		)	(18.2	)	5,268			4.2		(25,538		)	(5.2	)	12,937		3.7
Income from continuing operations, net of income taxes	$	83,794		47.5	%	$	29,038		22.9	%	$	165,108		33.6	%	$	76,512	21.9	%

SALES

The following tables set forth sales, and percentage of sales, by product group for the three and nine months ended September 30, 2017 and 2016 :



	Three Months Ended September 30,
	2017		% of Total Sales		2016		% of Total Sales		Increase/ (Decrease)		Percent Change
Semiconductor capital equipment market	$	116,468	66.0	%	$	81,157	64.1	%	$	35,311	43.5	%
Industrial power capital equipment market	35,895		20.3		26,493		20.9		9,402		35.5	%
Global service	24,212		13.7		18,902		15.0		5,310		28.1	%
Total sales	$	176,575	100.0	%	$	126,552	100.0	%	$	50,023	39.5	%

	Nine Months Ended September 30,
	2017		% of Total Sales		2016		% of Total Sales		Increase/ (Decrease)		Percent Change
Semiconductor capital equipment market	$	338,136	68.8	%	$	229,486	65.9	%	$	108,650	47.3	%
Industrial power capital equipment market	86,342		17.6		65,209		18.7		21,133		32.4	%
Global service	67,320		13.6		53,666		15.4		13,654		25.4	%
Total sales	$	491,798	100.0	%	$	348,361	100.0	%	$	143,437	41.2	%

Total Sales

Sales increased $50.0 million , or 39.5% , to $176.6 million for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 and increased $10.7 million , or 6.5% , as compared to the three months ended June 30, 2017 . Sales for the nine months ended September 30, 2017 increased $143.4 million , or 41.2% , to $491.8 million from $348.4 million for the nine months ended September 30, 2016 . The increase in sales for both periods was primarily due to demand in the semiconductor market driven by accelerated demand and strength in etch applications, as well continued growth in global services. Total sales from Excelsys, which was acquired July 3, 2017, was $4.0 million for the three months ended September 30, 2017 .

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Sales in the semiconductor market increased $35.3 million , or 43.5% , for the three months ending September 30, 2017 as compared to the three months ended September 30, 2016 and was flat as compared to the three months ended June 30, 2017 . Semiconductor market sales for the nine months ended September 30, 2017 increased $108.7 million or 47.3% as compared to the same period in 2016 . Our growth in the semiconductor market has been fueled by our leadership in etch applications, specifically related to advanced memory and transition to 3DNAND, along with advances in logic technology. Sales growth in each of the periods is driven primarily by recent program wins which have moved into production and delivery.

Sales in the industrial markets increased $9.4 million , or 35.5% , for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 and increased $9.6 million , or 36.6% , as compared to the three months ended June 30, 2017 . For the nine months ended September 30, 2017 , sales increased $21.1 million or 32.4% as compared to the same period in 2016 . The increase in sales was primarily due to the expansion in advanced coating applications. The industrial markets we serve include solar panel, flat panel display, power control modules, data storage, architectural glass, high voltage and other industrial manufacturing markets. Our customers in these markets are primarily global and regional original equipment manufacturers. For the three months ended September 30, 2017 , sales from Excelsys was $4.0 million .

Global service sales increased $5.3 million , or 28.1% , for the three months ended September 30, 2017 as compared to the three months ended September 30, 2016 and increased $1.6 million , or 7.2% , as compared to the three months ended June 30, 2017 . Global service sales for the nine months ending September 30, 2017 increased $13.7 million , or 25.4% , as compared to the same period in 2016 . The increase in global service sales in all periods is due to share gains and growth in the installed base.

Backlog

Our backlog was $112.1 million at September 30, 2017 as compared to $69.2 million at December 31, 2016 . Backlog remains strong primarily due to increased demand in the semiconductor and industrial thin film markets.

GROSS PROFIT

For the three months ended September 30, 2017 , gross profit increased $26.1 million to $92.2 million as compared to gross profit of $66.1 million for the same period in 2016 . Gross profit as a percent of sales remained flat between the periods at 52.2%. Gross profit for the nine months ended September 30, 2017 was $258.2 million , or 52.5% of sales, as compared to gross profit of $181.6 million , or 52.1% of sales, for the same period in 2016 . The increase in gross profit is primarily attributable to increased volume. For the three months ended September 30, 2017 gross profit from Excelsys was $1.7 million which included$0.1 million associated with a step up in book basis for purchased inventory.

OPERATING EXPENSE

Operating expenses increased $8.8 million to $ 40.6 million , or 23.0% of sales, for the three months ended September 30, 2017 from $31.8 million , or 25.1% of sales, for the same period in 2016 . Operating expenses increased $22.2 million to $115.5 million , or 23.5% of sales, for the nine months ended September 30, 2017 , from $93.3 million , or 26.8% of sales, for the same period in 2016 . For the three months ended September 30, 2017 operating expenses from Excelsys was $1.6 million which included $0.2 million in amortization for purchased intangibles.

The following table summarizes our operating expenses as a percentage of sales for the periods indicated:



	Three Months Ended September 30,								Nine Months Ended September 30,
	2017				2016				2017				2016
Research and development	$	14,629	8.3	%	$	11,293	8.9	%	$	41,742	8.5	%	$	33,324	9.6	%
Selling, general, and administrative	24,692		14.0		19,421		15.4		70,580		14.4		56,814		16.3
Amortization of intangible assets	1,240		0.7		1,048		0.8		3,176		0.6		3,180		0.9
Total operating expenses	$	40,561	23.0	%	$	31,762	25.1	%	$	115,498	23.5	%	$	93,318	26.8	%

Research and Development

We perform research and development of products for new or emerging applications, technological changes to provide higher performance, lower cost, or other attributes that we may expect to advance our customers’ products. We believe that continued development of technological applications, as well as enhancements to existing products to support customer requirements, are critical for us to compete in the markets we serve. Accordingly, we devote significant personnel and financial resources to the development of new products and the enhancement of existing products, and we expect these investments to continue.

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Research and development expenses increased $3.3 million to $14.6 million , or 8.3% of sales, for the three months ended September 30, 2017 from $11.3 million , or 8.9% of sales, for the same period in 2016 . Research and development expenses increased $8.4 million to $41.7 million , or 8.5% of sales, for the nine months ended September 30, 2017 from $33.3 million , or 9.6% of sales, for the same period in 2016 . The increase in research and development expense is due to our investment in new programs to maintain and increase our technological leadership and provide solutions to our customers' evolving needs. For the three months ended September 30, 2017 research and development expense from Excelsys was $0.5 million .

Selling, General and Administrative

Our selling expenses support domestic and international sales and marketing activities that include personnel, trade shows, advertising, third-party sales representative commissions, and other selling and marketing activities. Our general and administrative expenses support our worldwide corporate, legal, tax, financial, governance, administrative, information systems, and human resource functions in addition to our general management, including acquisition-related activities.

Selling, general and administrative expenses increased $5.3 million to $24.7 million , or 14.0% , of sales for the three months ended September 30, 2017 from $19.4 million , or 15.4% of sales, for the same period in 2016 . Selling, general and administrative expenses increased $13.8 million to $70.6 million , or 14.4% of sales, for the nine months ended September 30, 2017 from $56.8 million , or 16.3% of sales, for the same period in 2016 . The increase in selling, general and administrative expense in both periods is primarily driven by higher stock based compensation, performance bonus, increased headcount and payroll, and costs associated with business development. For the three months ended September 30, 2017 selling, general and administrative expense from Excelsys was $1.1 million .

Other Income (Expense), net

Other income (expense), net consists primarily of interest income and expense, foreign exchange gains and losses, gains and losses on sales of fixed assets, and other miscellaneous items. Other income (expense), net was a gain of $0.2 million for the three months ended September 30, 2017 , as compared to a loss of $0.1 million for the same period in 2016 . Other income (expense), net was a loss of $(3.1) million for the nine months ended September 30, 2017 , as compared to a gain of $1.1 million for the same period in 2016 . The loss for the nine months ended September 30, 2017 was primarily the cost of a foreign currency exchange rate forward contract that we entered into for a potential offshore acquisition that we decided not to consummate. See

Note 7. Derivative Financial Instruments in Part I, Item 1 "Unaudited Condensed Consolidated Financial Statements" contained herein.

Provision for Income Taxes

For the three and nine months ended September 30, 2017 , the effective tax rates were (61.7)% and (18.3)% , respectively, compared to 15.4% and 14.5% for the three and nine months ended September 30, 2016 , respectively. The effective tax rates for the three and nine months ended September 30, 2017 reflect the recognition of $40.2 million tax benefit associated with an estimated worthless stock deduction for the liquidation of one of our wholly owned solar inverter entities. The effective tax rates, without the $40.2 million estimated worthless stock benefit, for the three and nine months ended September 30, 2017 , were 15.9% and 10.5% , respectively.

The effective tax rates for 2017 and 2016 are lower than the federal statutory rate primarily due to the tax benefit of earnings in foreign jurisdictions which are subject to lower tax rates. Additionally, the effective rates for the three and nine months ended September 30, 2017 were favorably impacted by the implementation of ASU 2016-09, Compensation - Stock Compensation: Improvements to Employee Share-Based Payments, and the related impact from the tax benefit derived from the exercise of employee equity incentive instruments.

Our future effective income tax rate depends on various factors, such as changes in tax laws, regulations, accounting principles, or interpretations thereof and the geographic composition of our pre-tax income. We carefully monitor these factors and adjust our effective income tax rate accordingly.

Results of Discontinued Operations

We completed the wind down of our inverter engineering, manufacturing and sales product line in December 2015. Accordingly, the inverter product line is presented as a discontinued operation for all periods presented herein. Extended warranties previously sold for the inverter product line are reflected in deferred revenue from continuing operations on our Unaudited Condensed Consolidated Balance Sheets and will be reflected in continuing operations in future periods as the deferred revenue is earned and the associated services are rendered.

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Income from discontinued operations, net of income taxes are as follows:



	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Sales	$	—		$	—		$	—		$	—
Cost of sales	944			3,095			47			672
Total operating expenses	(441		)	(1,473		)	(1,587		)	(3,759		)
Operating income from discontinued operations	(503		)	(1,622		)	1,540			3,087
Other income	(86		)	(14		)	291			325
Income from discontinued operations before income taxes	(589		)	(1,636		)	1,831			3,412
Provision for income taxes	(659		)	(2,959		)	(512		)	(3,249		)
Income from discontinued operations, net of income taxes	$	70		$	1,323		$	2,343		$	6,661

Operating income from discontinued operations for the three and nine months ended September 30, 2017 and 2016 reflects the recovery of accounts receivable previously reserved for and the release of product warranty liability.

Non-GAAP Results

Management uses non-GAAP operating income and non-GAAP EPS to evaluate business performance without the impacts of certain non-cash charges and other charges which are not part of our usual operations. We use these non-GAAP measures to assess performance against business objectives, make business decisions, including developing budgets and forecasting future periods. In addition, management's incentive plans include these non-GAAP measures as criteria for achievements. These non-GAAP measures are not in accordance with U.S. GAAP and may differ from non-GAAP methods of accounting and reporting used by other companies. However, we believe these non-GAAP measures provide additional information that enables readers to evaluate our business from the perspective of management. The presentation of this additional information should not be considered a substitute for results prepared in accordance with U.S. GAAP.

The non-GAAP results presented below exclude the impact of non-cash related charges, such as the amortization of intangible assets, stock-based compensation, and restructuring charges, as well as acquisition-related costs and other nonrecurring costs, as they are not indicative of future performance. The tax effect of our non-GAAP adjustments represents the anticipated annual tax rate applied to each non-GAAP adjustment after consideration of their respective book and tax treatments.



Reconciliation of Non-GAAP measure - operating expenses and operating income from continuing operations, excluding certain items	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Gross Profit from continuing operations, as reported	$	92,234		$	66,123		$	258,206		$	181,629
Operating expenses from continuing operations, as reported	40,561			31,762			115,498			93,318
Adjustments:
Stock-based compensation	(3,453		)	(1,301		)	(10,707		)	(4,299		)
Amortization of intangible assets	(1,240		)	(1,048		)	(3,176		)	(3,180		)
Acquisition-related costs	—			—			(150		)	—
Non-GAAP operating expenses from continuing operations	35,868			29,413			101,465			85,839
Non-GAAP operating income from continuing operations	$	56,366		$	36,710		$	156,741		$	95,790

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Reconciliation of Non-GAAP measure - operating expenses and operating income from continuing operations, excluding certain items	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
Gross Profit from continuing operations, as reported	52.2	%	52.2	%	52.5	%	52.1	%
Operating expenses from continuing operations, as reported	23.0		25.1		23.5		26.8
Adjustments:
Stock-based compensation	(2.0	)	(1.1	)	(2.3	)	(1.3	)
Amortization of intangible assets	(0.7	)	(0.8	)	(0.6	)	(0.9	)
Acquisition-related costs	—		—		—		—
Non-GAAP operating expenses from continuing operations	20.3		23.2		20.6		24.6
Non-GAAP operating income from continuing operations	31.9	%	29.0	%	31.9	%	27.5	%



Reconciliation of Non-GAAP measure - income from continuing operations, excluding certain items	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Income from continuing operations, net of income taxes, as reported	$	83,794		$	29,038		$	165,108		$	76,512
Adjustments:
Stock-based compensation	3,453			1,301			10,707			4,299
Amortization of intangible assets	1,240			1,048			3,176			3,180
Loss on foreign exchange hedge	—			—			3,489			—
Acquisition-related costs	—			—			150			—
Incremental expense associated with start-up of the Asia regional headquarters	1,133			—			1,133			—
Nonrecurring tax benefit associated with inverter business	(40,194		)	—			(40,194		)	—
Tax effect of non-GAAP adjustments	(1,426		)	(608		)	(4,451		)	(1,973		)
Non-GAAP income from continuing operations, net of income taxes	$	48,000		$	30,779		$	139,118		$	82,018
Non-GAAP diluted earnings per share	$1.19			$0.77			$3.46			$2.05

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Impact of Inflation

In recent years, inflation has not had a significant impact on our operations. However, we continuously monitor operating price increases, particularly in connection with the supply of component parts used in our manufacturing process. To the extent permitted by competition, we pass increased costs on to our customers by increasing sales prices over time. From time to time, we may also reduce prices to customers to decrease sales prices due to reductions in the cost structure of our products from cost improvement initiatives and decreases in component part prices.

Liquidity and Capital Resources

LIQUIDITY

We believe that adequate liquidity and cash generation are important to the execution of our strategic initiatives. Our ability to fund our operations, acquisitions, capital expenditures, and product development efforts may depend on our ability to generate cash from operating activities which is subject to future operating performance, as well as general economic, financial, competitive, legislative, regulatory, and other conditions, some of which may be beyond our control. Our primary sources of liquidity are our available cash, investments, cash generated from current operations as well as our credit facility noted below.

At September 30, 2017 , we had $369.6 million in cash, cash equivalents, and marketable securities. We believe that our current and available cash levels, available credit facility, as well as our cash flows from future operations, will be adequate to meet anticipated working capital needs, levels of capital expenditures, acquisitions and contractual obligations for the next twelve months. We may, however, seek additional financing from time to time.

On July 28, 2017, Advanced Energy entered into a Loan Agreement (the “Loan Agreement”) with a bank which provides a revolving line of credit of up to $100.0 million subject to certain funding conditions through July 28, 2022. The credit facility provides us with further future flexibility for execution of our strategic plans. At September 30, 2017 , we had $100.0 million in available funding under the Loan Agreement. For more information on the Loan Agreement, see "Note 18. Credit Facility" as set forth in Part I Item 1 of this Form 10-Q.

In September 2015, our Board of Directors authorized a program to repurchase up to $150.0 million of our stock over a thirty-month period. In August 2017, we entered into a Fixed Dollar Share Repurchase Agreement to repurchase $25.0 million of shares of our common stock in the open market. A total of 351,292 shares of our common stock was repurchased under the Share Repurchase Agreement at an average price of $71.16 per share. We retired the shares repurchased under the Share Repurchase Agreement and recognized the $25.0 million share repurchase as a reduction to Additional paid-in capital. As of September 30, 2017 , we had $75.0 million remaining for the authorized repurchase of shares.

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CASH FLOWS

A summary of our cash provided by and (used in) operating, investing and financing activities is as follows:



	Nine Months Ended September 30,
	2017			2016
Net cash provided by operating activities from continuing operations	$	140,307		$	82,665
Net cash used in operating activities from discontinued operations	(7,293		)	(4,538		)
Net cash provided by operating activities	133,014			78,127

Net cash (used in) provided by investing activities from continuing operations	(24,685		)	1,892
Net cash used in investing activities from discontinued operations	—			—
Net cash (used in) provided by investing activities	(24,685		)	1,892

Net cash (used in) provided by financing activities from continuing operations	(26,900		)	1,750
Net cash used in financing activities from discontinued operations	—			(24		)
Net cash (used in) provided by financing activities	(26,900		)	1,726

EFFECT OF CURRENCY TRANSLATION ON CASH	1,138			(550		)
INCREASE IN CASH AND CASH EQUIVALENTS	82,567			81,195
CASH AND CASH EQUIVALENTS, beginning of period	289,517			169,720
CASH AND CASH EQUIVALENTS, end of period	372,084			250,915
Less cash and cash equivalents from discontinued operations	5,512			6,623
CASH AND CASH EQUIVALENTS FROM CONTINUING OPERATIONS, end of period	$	366,572		$	244,292

2017 CASH FLOWS COMPARED TO 2016

Net cash provided by operating activities

Net cash provided by operating activities for the nine months ended September 30, 2017 was $133.0 million , as compared to $78.1 million for the same period in 2016 . The increase of $54.9 million in net cash flows from operating activities is due to improved earnings from operations.

Net cash (used in) provided by investing activities

Net cash (used in) provided by investing activities for the nine months ended September 30, 2017 was $(24.7) million , as compared to $1.9 million for the nine months ended September 30, 2016 . Included in cash used in investing activities for the nine months ended September 30, 2017 was $17.3 million used in the acquisition of Excelsys and the purchase of $3.5 million in foreign currency exchange hedges. Included in the cash provided by investing activities for the nine months ended September 30, 2017 was $7.2 million of proceeds from the sale of marketable securities.

Net cash (used in) provided by financing activities

Net cash (used in) provided by financing activities for the nine months ended September 30, 2017 was $(26.9) million , as compared to $1.7 million for the nine months ended September 30, 2016 . Included in cash used in financing activities for the nine months ended September 30, 2017 was $25.0 million for the repurchase of company stock.

Effect of currency translation on cash

During the nine months ended September 30, 2017 , currency translation had a $1.1 million favorable impact as compared to a $0.6 million unfavorable impact during the nine months ended September 30, 2016 . Our foreign operations primarily sell product and incur expenses in the related local currency. Exchange rate fluctuations could require us to increase prices to foreign customers, which could result in lower net sales by us to such customers. Alternatively, if we do not adjust the prices for our products in response to unfavorable currency fluctuations, our results of operations could be adversely impacted. The functional

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currencies of our worldwide operations include U.S. dollar ("USD"), Canadian Dollar ("CAD"), Swiss Franc ("CHF"), Chinese Yuan ("CNY"), Euro ("EUR"), Pound Sterling ("GBP"), Indian Rupee ("INR"), Japanese Yen ("JPY"), South Korean Won ("KRW"), and New Taiwan Dollar ("TWD"). Our purchasing and sales activities are primarily denominated in USD, CNY, EUR, and JPY. The change in these key currency rates during the nine months ended September 30, 2017 and 2016 are as follows:



		Nine Months Ended September 30,
From	To	2017		2016
CAD	USD	7.8	%	5.3	%
CHF	USD	4.6	%	3.5	%
CNY	USD	4.4	%	(2.6	)%
EUR	USD	12.3	%	3.3	%
GBP	USD	8.6	%	(12.0	)%
INR	USD	4.0	%	(0.7	)%
JPY	USD	4.0	%	18.8	%
KRW	USD	4.7	%	6.8	%
TWD	USD	6.5	%	4.9	%

Critical Accounting Policies and Estimates

The preparation of financial statements and related disclosures in conformity with U.S. GAAP requires us to make judgments, assumptions and estimates that affect the amounts reported in the Condensed Consolidated Financial Statements and accompanying notes.

Note 1. Operation and Summary of Significant Accounting Policies and Estimates to the Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended December 31, 2016 describes the significant accounting policies and methods used in the preparation of our Consolidated Financial Statements. Our critical accounting estimates, discussed in the Management's Discussion and Analysis of Financial Condition and Results of Operations in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2016 , include estimates for allowances for doubtful accounts, determining useful lives for depreciation and amortization, the valuation of assets and liabilities acquired in business combinations, assessing the need for impairment charges for identifiable intangible assets and goodwill, establishing warranty reserves, accounting for income taxes, and assessing excess and obsolete inventories. Such accounting policies and estimates require significant judgments and assumptions to be used in the preparation of the Condensed Consolidated Financial Statements and actual results could differ materially from the amounts reported based on variability in factors affecting these estimates.


ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

Our market risk exposure relates to changes in interest rates in our investment portfolio. We generally place our investments with high-credit quality issuers and by policy are averse to principal loss and seek to protect and preserve our invested funds by limiting default risk, market risk, and reinvestment risk.

As of September 30, 2017 , our investments consisted of certificates of deposit, with maturities of less than 1 years (see

Note 6. Marketable Securities and Assets Measured at Fair Value in Part 1, Item 1 "Unaudited Condensed Consolidated Financial Statements"). As a measurement of the sensitivity of our portfolio and assuming that our investment portfolio balances remain constant, a hypothetical decrease of one percentage point in interest rates would decrease annual pre-tax earnings by a negligible amount.

Foreign Currency Exchange Rate Risk

We are impacted by changes in foreign currency exchange rates through sales and purchasing transactions when we sell products and purchase materials in currencies different from the currency in which product and manufacturing costs were incurred. Our purchasing and sales activities are primarily denominated in the USD, EUR, JPY, and CNY. As these currencies fluctuate against each other, and other currencies, we are exposed to foreign currency exchange rate risk on sales, purchasing transactions and labor.

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Our reported financial results of operations, including the reported value of our assets and liabilities, are also impacted by changes in foreign currency exchange rates. Assets and liabilities of many of our subsidiaries outside the U.S. are translated at period end rates of exchange for each reporting period. Operating results and cash flow statements are translated at weighted-average rates of exchange during each reporting period. Although these translation changes have no immediate cash impact, the translation changes may impact future borrowing capacity, and overall value of our net assets.

From time to time, we enter into foreign currency exchange rate contracts with banks to hedge against changes in foreign currency exchange rates on assets and liabilities expected to be settled at a future date. Market risk arises from the potential adverse effects on the value of derivative instruments that result from a change in foreign currency exchange rates. We attempt to mitigate our market risk applicable to foreign currency exchange rate contracts by establishing and monitoring parameters that limit the types and degree of our derivative contract instruments. We enter into derivative contract instruments for risk management purposes only. We do not enter into or issue derivatives for trading or speculative purposes.

Currency exchange rates vary daily and often one currency strengthens against the USD while another currency weakens. Because of the complex interrelationship of the worldwide supply chains and distribution channels, it is difficult to quantify the impact of a change in one or more particular exchange rates.

See the "Risk Factors" set forth in Part I, Item 1A of our Annual Report on Form 10-K and Part II, Item 1A of this Form 10-Q for more information about the market risks to which we are exposed. There have been no material changes in our exposure to market risk from December 31, 2016 .


ITEM 4.	CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We have established disclosure controls and procedures, which are designed to ensure that information required to be disclosed in reports filed or submitted under the Securities Exchange Act of 1934 ("Act") is recorded, processed, summarized, and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. These disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in the reports that we file or submit under the Act is accumulated and communicated to management, including our Principal Executive Officer (Yuval Wasserman, Chief Executive Officer) and Principal Financial Officer (Thomas Liguori, Chief Financial Officer), as appropriate, to allow timely decisions regarding required disclosures.

As of the end of the period covered by this report, we conducted an evaluation, with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures pursuant to the Exchange Act Rule 13a-15(b). Based upon this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2017 . The conclusions of the Chief Executive Officer and Chief Financial Officer from this evaluation were communicated to the Audit Committee. We intend to continue to review and document our disclosure controls and procedures, including our internal controls and procedures for financial reporting, and may from time to time make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting that occurred during the fiscal quarter covered by this Form 10-Q that has 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 involved in disputes and legal actions arising in the normal course of our business. There have been no material developments in legal proceedings in which we are involved during the nine months ended September 30, 2017 . For a description of previously reported legal proceedings refer to Part I, Item 3, "Legal Proceedings" of our Annual Report on Form 10-K for the year ended December 31, 2016 .


ITEM 1A.	RISK FACTORS

Our business, financial condition, operating results and cash flows can be impacted by a number of factors, including, but not limited to, those set forth below, any of which could cause our results to be adversely impacted and could result in a decline in the value or loss of an investment in our common stock. Other factors may also exist that we cannot anticipate or that we currently do not consider to be significant based on information that is currently available. These risks and uncertainties have the potential to materially affect our business, financial condition, results of operations, cash flows and future results. Such risks and uncertainties may also impact the accuracy of forward-looking statements included in this Form 10-Q and other reports we file with the Securities and Exchange Commission.

We conduct manufacturing at only a few sites and our sites are not generally interchangeable.

Our power products for the semiconductor industry are manufactured in Shenzhen, PRC. Our high voltage products are manufactured in Ronkonkoma, New York, Littlehampton, United Kingdom and Shenzhen, PRC. Our thermal instrumentation products that are used in the semiconductor industry are manufactured in Vancouver, Washington and Littlehampton, United Kingdom. Each facility is under operating lease and interruptions in operations could be caused by early termination of existing leases by landlords or failure by landlords to renew existing leases upon expiration, including the possibility that suitable operating locations may not be available in proximity to existing facilities which could result in labor or supply chain risks. Each facility manufactures different products, and therefore, is not interchangeable. Natural, uncontrollable occurrences or other operational issues at any of our manufacturing facilities could significantly reduce our productivity at such site and could prevent us from meeting our customers’ requirements in a timely manner, or at all. In particular, for certain higher demand products manufactured out of our Littlehampton, United Kingdom site, we are experiencing longer delivery times and delayed shipments to customers which may continue over the short term. Any potential losses from such occurrences could significantly affect our relationship with customers, operations and results of operations for a prolonged period of time.

Our restructuring and other cost-reduction efforts in prior years have included transitioning manufacturing operations to our facility in Shenzhen from other manufacturing facilities, such as Fort Collins, Colorado and Littlehampton, United Kingdom, which renders us increasingly reliant upon our Shenzhen facility. A disruption in manufacturing at our Shenzhen facility, from whatever cause, could have a significantly adverse effect on our ability to fulfill customer orders, our ability to maintain customer relationships, our costs to manufacture our products and, as a result, our results of operations and financial condition.

Our evolving manufacturing footprint may increase our risk.

The nature of our manufacturing is evolving as we continue to grow by acquisition. Historically, our principal manufacturing location was in China; however, we have also added specialized manufacturing at our Littlehampton, United Kingdom and Ronkonkoma, New York facilities. From time to time we may be required to relocate manufacturing or migrate manufacturing of specific products between facilities or to third party manufacturers. We have been notified that we will be required to relocate our Shenzhen, PRC manufacturing facility by July 2020. If we do not successfully coordinate the timely manufacturing and distribution of our products during this time, we may have insufficient supply of products to meet customer demand, we could lose sales, we may experience a build-up in inventory, or we may incur additional costs.

Raw material, part, component, and subassembly shortages, exacerbated by our dependence on sole and limited source suppliers, could affect our ability to manufacture products and systems and could delay our shipments.

Our business depends on our ability to manufacture products that meet the rapidly changing demands of our customers. Our ability to timely manufacture our products depends in part on the timely delivery of raw materials, parts, components, and subassemblies from suppliers. We rely on sole and limited source suppliers for some of our raw materials, parts, components, and subassemblies that are critical to the manufacturing of our products.

This reliance involves several risks, including the following:


•	the inability to obtain an adequate supply of required parts, components, or subassemblies;

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•	supply shortages, if a sole or limited source provider ceases operations;


•	the need to fund the operating losses of a sole or limited source provider;


•	reduced control over pricing and timing of delivery of raw materials and parts, components, or subassemblies;


•	the need to qualify alternative suppliers;


•	suppliers that may provide parts, components or subassemblies that are defective, contain counterfeit goods or are otherwise misrepresented to us in terms of form, fit or function; and


•	the inability of our suppliers to develop technologically advanced products to support our growth and development of new products.

From time to time, our sole or limited source suppliers have given us notice that they are ending supply of critical parts, components, and subassemblies that are required for us to deliver product. If we cannot qualify alternative suppliers before ending supply of critical parts from the sole or limited source suppliers, we may be required to make a last-time-buy(s) and take possession of material amounts of inventory in advance of customer demand. In some instances, the last-time-buy materials required to be purchased may be for several years which in turn exposes us to additional excess and obsolescence risk. If we cannot qualify alternative suppliers before the last-time-buy materials are utilized in our products or legacy inverter warranty operations, we may be unable to deliver further product or legacy inverter warranty service to our customers.

Qualifying alternative suppliers could be time consuming and lead to delays in, or prevention of delivery of products to our customers, as well as increased costs. If we are unable to qualify additional suppliers and manage relationships with our existing and future suppliers successfully, if our suppliers experience financial difficulties including bankruptcy, or if our suppliers cannot meet our performance or quality specifications or timing requirements, we may experience shortages, delays, or increased costs of raw materials, parts, components, or subassemblies. This in turn could limit or prevent our ability to manufacture and ship our products, which could materially and adversely affect our relationships with our current and prospective customers and our business, financial condition, and results of operations.

Our orders of raw materials, parts, components, and subassemblies are based on demand forecasts.

We place orders with many of our suppliers based on our customers’ quarterly forecasts and our annual forecasts. These forecasts are based on our customers’ and our expectations as to demand for our products. As the quarter and the year progress, such demand can change rapidly or we may realize that our customers’ expectations were overly optimistic or pessimistic, especially when industry or general economic conditions change. Orders with our suppliers cannot always be amended in response. In addition, in order to assure availability of certain components or to obtain priority pricing, we have entered into contracts with some of our suppliers that require us to purchase a specified amount of components and subassemblies each quarter, even if we are not able to use such components or subassemblies. Moreover, we have obligations to some of our customers to hold a minimum amount of finished goods in inventory, in order to fulfill just in time orders, regardless of whether the customers expect to place such orders. We currently have firm purchase commitments and agreements with various suppliers to ensure the availability of components. If demand for our products does not continue at current levels, we might not be able to use all of the components that we are required to purchase under these commitments and agreements, and our reserves for excess and obsolete inventory may increase, which could have a material adverse effect on our results of operations. If demand for our products exceeds our customers’ and our forecasts, we may not be able to timely obtain sufficient raw materials, parts, components, or subassemblies, on favorable terms or at all, to fulfill the excess demand.

Significant developments stemming from recent U.S. government proposals concerning tariffs, tax reform and other economic proposals could have a material adverse effect on us.

Recent U.S. government proposals could impose greater restrictions and economic disincentives on international trade, particularly imports.

Proposals to date include possible tariffs on goods imported into the United States, particularly from China, as well as possible border adjusted tax rules that could make the cost of imported product a non-tax deductible expense, potentially raising tax expense. While the final changes in regulation are not known at this time, any final regulation that adds a cost to imported product or limits a tax deductible expense could have a material effect on our costs and net income. We have our primary manufacturing facility in Shenzhen, China and a significant portion of our products are imported into the United States. Any increase in the cost of our goods imported into the United States could adversely impact our competitiveness. Depending on the final regulation, we may elect to move some of our manufacturing operations to the US which could increase our costs as well. Changes in U.S. social, political, regulatory and economic conditions or in laws and policies governing foreign trade, manufacturing, development and investment in the territories and countries where we currently develop and sell products, and any negative sentiments towards the United States as a result of such changes, could adversely affect our business. In addition, negative sentiments towards the United States among non-U.S. customers and among non-U.S. employees or prospective employees could adversely affect sales or hiring and retention, respectively.

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Some proposals, such as provisions that would make it easier (require less tax payment) to repatriate overseas cash to the U.S., as well as border adjusted tax regulations that could exclude export revenue from taxable income, may be a benefit to our company. The ability to repatriate cash to the U.S. would provide greater flexibility to acquire assets in the U.S. as well as perform share repurchases and potentially pay shareholder dividends. The ability to exclude export revenue from taxable income potentially makes manufacture of product in the US economically beneficial.

At this time, the final regulations are not known and therefore no assurance can be made that they will not have a material adverse effect.

Increased governmental action on income tax regulations could negatively impact our business.

International governments have heightened their review and scrutiny of multinational businesses like ours which could increase our compliance costs and future tax liability to those governments. As governments continue to look for ways to increase their revenue streams they could increase audits of companies to accelerate the recovery of monies perceived as owed to them under current or past regulations. Such an increase in audit activity could have a negative impact on companies which operate internationally, as we do.

Activities necessary to integrate acquisitions may result in costs in excess of current expectations or be less successful than anticipated.

We have completed acquisitions in the past and we may acquire other businesses in the future. The success of such transactions will depend on, among other things, our ability to integrate assets and personnel acquired in these transactions and to apply our internal controls process to these acquired businesses. The integration of acquisitions may require significant attention from our management, and the diversion of management’s attention and resources could have a material adverse effect on our ability to manage our business. Furthermore, we may not realize the degree or timing of benefits we anticipated when we first entered into the acquisition transaction. If actual integration costs are higher than amounts originally anticipated, if we are unable to integrate the assets and personnel acquired in an acquisition as anticipated, or if we are unable to fully benefit from anticipated synergies, our business, financial condition, results of operations, and cash flows could be materially adversely affected.

We have historically made acquisitions and divestitures. However, we may not find suitable acquisition candidates in the future and we may not be able to successfully integrate and manage acquired businesses. In either an acquisition or a divestiture, we may be required to make fundamental changes in our ERP, business processes and tools which could disrupt our core business and harm our financial condition.

In the past, we have made strategic acquisitions of other corporations and entities, as well as asset purchases, and we continue to evaluate potential strategic acquisitions of complementary companies, products, and technologies. We have also divested businesses. In the future, we could:


•	issue stock that would dilute our current stockholders' percentage ownership;


•	pay cash that would decrease our working capital;


•	incur debt;


•	assume liabilities; or


•	incur expenses related to impairment of goodwill and amortization.

Acquisitions and divestitures also involve numerous risks, including:


•	problems combining or separating the acquired/divested operations, systems, technologies, or products;


•	an inability to realize expected sales forecasts, operating efficiencies or product integration benefits;


•	difficulties in coordinating and integrating geographically separated personnel, organizations, systems, and facilities;


•	difficulties integrating business cultures;


•	unanticipated costs or liabilities;


•	diversion of management's attention from our core business;


•	adverse effects on existing business relationships with suppliers and customers;


•	potential loss of key employees, particularly those of purchased organizations;


•	incurring unforeseen obligations or liabilities in connection with either acquisitions or divestitures; and


•	the failure to complete acquisitions even after signing definitive agreements which, among other things, would result in the expensing of potentially significant professional fees and other charges in the period in which the acquisition or negotiations are terminated.

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Our operations in the People’s Republic of China are subject to significant political and economic uncertainties over which we have little or no control and we may be unable to alter our business practice in time to avoid reductions in revenues.

A significant portion of our operations outside the United States are located in the PRC, which exposes us to risks, such as exchange controls and currency restrictions, changes in local economic conditions, changes in customs regulations, changes in tax policies, changes in PRC laws and regulations, possible expropriation or other PRC government actions, and unsettled political conditions including potential changes in U.S. policy regarding overseas manufacturing. These factors may have a material adverse effect on our operations, business, results of operations, and financial condition. See "We are exposed to risks associated with worldwide financial markets and the global economy" risk factor below.

The PRC’s economy differs from the economies of most developed countries in many respects, including with respect to the amount of government involvement, level of development, rate of growth, control of foreign exchange and allocation of resources. While the economy of the PRC has experienced significant growth in the past 20 years, growth has been uneven across different regions and amongst various economic sectors of the PRC. The PRC government has implemented various measures to encourage economic development and guide the allocation of resources. Strikes by workers and picketing in front of the factory gates of certain companies in Shenzhen have caused unrest among some workers seeking higher wages, which could impact our manufacturing facility in Shenzhen. While some of the government's measures may benefit the overall economy of the PRC, they may have a negative effect on us. For example, our financial condition and results of operations may be materially and adversely affected by government control over capital investments or changes in tax regulations that are applicable to us as well as work stoppages.

Changes in tax laws, tax rates, or mix of earnings in tax jurisdictions in which we do business, could impact our future tax liabilities and related corporate profitability

We are subject to income taxes in the U.S. (federal and state) and numerous foreign jurisdictions. Tax laws, regulations, and administrative practices in various jurisdictions may be subject to significant change due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating our provision and accruals for these taxes. There are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. Our effective tax rates could be adversely affected by earnings being lower than anticipated in jurisdictions where we have lower statutory rates and earnings higher than anticipated in jurisdictions where we have higher statutory rates, losses incurred in jurisdictions for which we are not able to realize the related tax benefit, changes in foreign currency exchange rates, entry into new businesses and geographies and changes to our existing businesses, acquisitions (including integrations) and investments, changes in our deferred tax assets and liabilities and their valuation, and changes in the relevant tax, accounting, and other laws, regulations, administrative practices, principles, and interpretations, including fundamental changes to the tax laws applicable to corporate multinationals. The U.S., many countries in the European Union, and a number of other countries are actively considering changes in this regard.

For example, on October 5, 2015, the Organisation for Economic Co-operation and Development (OECD) issued the final report on all 15 Base Erosion and Profit Shifting “BEPS” Action Plans. According to the OECD, the current rules have created opportunities for Base Erosion and Profit Shifting, and suggest new rules whereby profits are taxed where economic activities take place and value is created. OECD comments include new or reinforced international standards as well as concrete measures to help countries tackle BEPS. Among the highlights of the OECD Final Reports are the new transfer pricing approach and reinforced international standards on tax treaties, the setting of minimum standards on harmful tax practices, treaty abuse, country-by-country reporting and dispute resolution, action items requiring national legislation particularly in hybrid mismatches and interest restriction, and analytical reports with recommendations concerning digital economy and multilateral instruments. If countries in which we operate adopt the OECD recommendations as outlined in the BEPS Action Plans, it is uncertain to what extent the changes could impact the Company.

We are exposed to risks associated with worldwide financial markets and the global economy.

Our business depends on the expansion of manufacturing capacity in our end markets and the installation base for the products we sell. In the past, severe tightening of credit markets, turmoil in the financial markets, and a weakening global economy have contributed to slowdowns in the industries in which we operate. Some of our key markets depend largely on consumer spending. Economic uncertainty, such as that recently experienced in the PRC, exacerbates negative trends in consumer spending and may cause our customers to push out, cancel, or refrain from placing equipment orders.

Difficulties in obtaining capital and uncertain market conditions may also lead to a reduction of our sales and greater instances of nonpayment. These conditions may similarly affect our key suppliers, which could affect their ability to deliver parts and result in delays for our products. Further, these conditions and uncertainty about future economic conditions could make it challenging for us to forecast our operating results and evaluate the risks that may affect our business, financial condition, and

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results of operations. As discussed in “ Our orders of raw materials, parts, components, and subassemblies are based on demand forecasts ,” a significant percentage of our expenses are relatively fixed and based, in part, on expectations of future net sales. If a sudden decrease in demand for our products from one or more customers were to occur, the inability to adjust spending quickly enough to compensate for any shortfall would magnify the adverse impact of a shortfall in net sales on our results of operations. Conversely, if market conditions were to unexpectedly improve and demand for our products were to increase suddenly, we might not be able to respond quickly enough, which could have a negative impact on our results of operations and customer relations.

Our results of operations could be affected by natural disasters and other events in the locations in which we or our customers or suppliers operate.

We have manufacturing and other operations in locations subject to natural occurrences such as severe weather and geological events including earthquakes or tsunamis that could disrupt operations. In addition, our suppliers and customers also have operations in such locations. A natural disaster, fire, explosion, or other event that results in a prolonged disruption to our operations, or the operations of our customers or suppliers, may materially adversely affect our business, results of operations, or financial condition.

We transitioned a significant amount of our supply base to Asian suppliers.

We transitioned the purchasing of a substantial portion of components for our thin film products to Asian suppliers to lower our materials costs and shipping expenses. These components might require us to incur higher than anticipated testing or repair costs, which would have an adverse effect on our operating results. Customers who have strict and extensive qualification requirements might not accept our products if these lower-cost components do not meet their requirements. A delay or refusal by our customers to accept such products, as well as an inability of our suppliers to meet our purchasing requirements, might require us to purchase higher-priced components from our existing suppliers or might cause us to lose sales to these customers, either of which could lead to decreased revenue and gross margins and have an adverse effect on our results of operations.

The industries in which we compete are subject to volatile and unpredictable cycles.

As a supplier to the global semiconductor, flat panel display, solar, industrial and related industries, we are subject to business cycles, the timing, length, and volatility of which can be difficult to predict. These industries historically have been cyclical due to sudden changes in customers’ manufacturing capacity requirements and spending, which depend in part on capacity utilization, demand for customers’ products, inventory levels relative to demand, and access to affordable capital. These changes have affected the timing and amounts of customers’ purchases and investments in technology, and continue to affect our orders, net sales, operating expenses, and net income. In addition, we may not be able to respond adequately or quickly to the declines in demand by reducing our costs. We may be required to record significant reserves for excess and obsolete inventory as demand for our products changes.

To meet rapidly changing demand in each of the industries we serve, we must effectively manage our resources and production capacity. During periods of decreasing demand for our products, we must be able to appropriately align our cost structure with prevailing market conditions, effectively manage our supply chain, and motivate and retain key employees. During periods of increasing demand, we must have sufficient manufacturing capacity and inventory to fulfill customer orders, effectively manage our supply chain, and attract, retain, and motivate a sufficient number of qualified individuals. If we are not able to timely and appropriately adapt to changes in our business environment or to accurately assess where we are positioned within a business cycle, our business, financial condition, or results of operations may be materially and adversely affected.

We must continually design and introduce new products into the markets we serve to respond to competition and rapid technological changes.

We operate in a highly competitive environment where innovation is critical, our future success depends on many factors, including the effective commercialization and customer acceptance of our products and services. The development, introduction and support of a broadening set of products is critical to our continued success. Our results of operations could be adversely affected if we do not continue to develop new products, improve and develop new applications for existing products, and differentiate our products from those of competitors resulting in their adoption by customers.

We must achieve design wins to retain our existing customers and to obtain new customers, although design wins achieved do not necessarily result in substantial sales.

Driven by continuing technology migration and changing customers demand the markets we serve are constantly changing in terms of advancement in applications, core technology and competitive pressures. New products we design for capital equipment manufacturers typically have a lifespan of five to ten years. Our success and future growth depends on our products being designed into our customers new generations of equipment as they develop new technologies and applications. We must work with these manufacturers early in their design cycles to modify, enhance and upgrade our products or design new products that meet the

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requirements of their new systems. The design win process is highly competitive and we may win or lose new design wins for our existing customers or new customers next generations of equipment. In case existing or new customers do not choose our products as a result of the development, evaluation and qualification efforts related to the design win process, our market share will be reduced, the potential revenues related to the lifespan of our customers' products, which can be 5-10 years, will not be realized, and our business, financial condition and results of operations would be materially and adversely impacted.

We generally have no long-term contracts with our customers requiring them to purchase any specified quantities from us.

Our sales are primarily made on a purchase order basis, and we generally have no long-term purchase commitments from our customers, which is typical in the industries we serve. As a result, we are limited in our ability to predict the level of future sales or commitments from our current customers, which may diminish our ability to allocate labor, materials, and equipment in the manufacturing process effectively. In addition, we may purchase inventory in anticipation of sales that do not materialize, resulting in excess and obsolete inventory write-offs.

If we are unable to adjust our business strategy successfully for some of our product lines to reflect the increasing price sensitivity on the part of our customers, our business and financial condition could be harmed.

Our business strategy for many of our product lines has been focused on product performance and technology innovation to provide enhanced efficiencies and productivity. As a result of recent economic conditions and changes in various markets that we serve, our customers have experienced significant cost pressures. We have observed increased price sensitivity on the part of our customers. If competition against any of our product lines should come to focus solely on price rather than on product performance and technology innovation, we will need to adjust our business strategy and product offerings accordingly, and if we are unable to do so, our business, financial condition, and results of operations could be materially and adversely affected.

Our competitive position could be weakened if we are unable to convince end users to specify that our products be used in the equipment sold by our customers.

The end users in our markets may direct equipment manufacturers to use a specified supplier’s product in their equipment at a particular facility. This occurs with frequency because our products are critical in manufacturing process control for thin-film applications. Our success, therefore, depends in part on our ability to have end users specify that our products be used at their facilities. In addition, we may encounter difficulties in changing established relationships of competitors that already have a large installed base of products within such facilities.

The markets we operate in are highly competitive.

We face substantial competition, primarily from established companies, some of which have greater financial, marketing, and technical resources than we do. We expect our competitors will continue to develop new products in direct competition with ours, improve the design and performance of their products, and introduce new products with enhanced performance characteristics. In order to remain competitive, we must improve and expand our products and product offerings. In addition, we may need to maintain a high level of investment in research and development and expand our sales and marketing efforts, particularly outside of the United States. We might not be able to make the technological advances and investments necessary to remain competitive. If we were unable to improve and expand our products and product offerings, our business, financial condition, and results of operations could be materially and adversely affected.

A significant portion of our sales and accounts receivable are concentrated among a few customers.

Our ten largest customers accounted for 70.2% and 66.5% of our sales for the nine months ended September 30, 2017 and 2016 , respectively. During the nine months ended September 30, 2017 , sales to Applied Materials, Inc. and Lam Research were $165.2 million and $114.3 million , respectively. During the nine months ended September 30, 2016 sales to Applied Materials, Inc., and Lam Research were $118.4 million and $73.3 million , respectively. A significant decline in sales from either or both of these customers, or the Company's inability to collect on these sales, could materially and adversely impact our business, results of operations and financial condition.

We maintain significant amounts of cash in international locations.

Given the global nature of our business, we have both domestic and international concentrations of cash and investments. The value of our cash, cash equivalents, and marketable securities can be negatively affected by liquidity, credit deterioration, financial results, economic risk, political risk, sovereign risk or other factors. The Company intends to utilize its foreign cash to expand our international operations through internal growth and strategic acquisitions. If our intent changes or if these funds are needed for our U.S. operations, or we are negatively impacted by any of the factors above, our financial condition and results of operations could be materially adversely affected.

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We may not be able to successfully identify appropriate acquisition candidates, to integrate any businesses, products, technologies, or personnel that we might acquire in the future or achieve the anticipated benefits of such transactions, which may harm our business.

We are subject to risks inherent in international operations.

Sales to our customers outside the United States were approximately 32.1% and 32.9% of our total sales for the nine months ended September 30, 2017 and 2016 . The acquisitions of the power controls modules and high voltage product lines have increased our presence in international locations. Our success producing goods internationally and competing in international markets is subject to our ability to manage various risks and difficulties, including, but not limited to:


•	our ability to effectively manage our employees at remote locations who are operating in different business environments from the United States;


•	our ability to develop and maintain relationships with suppliers and other local businesses;


•	compliance with product safety requirements and standards that are different from those of the United States;


•	variations and changes in laws applicable to our operations in different jurisdictions, including enforceability of intellectual property and contract rights;


•	trade restrictions, political instability, disruptions in financial markets, and deterioration of economic conditions;


•	customs regulations and the import and export of goods (including customs audits in various countries that occur from time to time);


•	the ability to provide sufficient levels of technical support in different locations;


•	our ability to obtain business licenses that may be needed in international locations to support expanded operations;


•	timely collecting accounts receivable from foreign customers including $20.3 million in accounts receivable from foreign customers as of September 30, 2017 ; and


•	changes in tariffs, taxes, and foreign currency exchange rates.

Our profitability and ability to implement our business strategies, maintain market share and compete successfully in international markets will be compromised if we are unable to manage these and other international risks successfully.

Globalization of sales increases risk of compliance with policy.

We operate in an increasingly complex sales environment around the world which places greater importance on our global control environment and imposes additional oversight risk. Such increased complexity could adversely affect our operating results by increasing compliance costs in the near-term and by increasing the risk of control failures in the event of non-compliance.

Market pressures and increased low-cost competition may reduce or eliminate our profitability.

Our customers continually exert pressure on us to reduce our prices and extend payment terms. Given the nature of our customer base and the highly competitive markets in which we compete, we may be required to reduce our prices or extend payment terms to remain competitive. We have recently seen pricing pressure from our largest customers due in part to low-cost competition and market consolidation. As a result of the competitive markets we serve, from time to time we may enter into long term pricing agreements with our largest customers that results in reduced product pricing. Such reduced product pricing may result in product margin declines unless we are successful in reducing our product costs ahead of such price reductions. We believe some of our Asian competitors benefit from local governmental funding incentives and purchasing preferences from end-user customers in their respective countries. Moreover, in order to be successful in the current competitive environment, we are required to accelerate our investment in research & development to meet time-to-market, performance and technology adoption cycle needs of our customers simply in order to compete for design wins, and if successful, receive potential purchase orders. Given such up-front investments we have to make and the competitive nature of our markets, we may not be able to reduce our expenses in an amount sufficient to offset potential margin declines or loss of business, and may not be able to meet customer product time-line expectations. The potential decrease in cash flow could materially and adversely impact our financial condition.

We are highly dependent on our intellectual property.

Our success depends significantly on our proprietary technology. We attempt to protect our intellectual property rights through patents and non-disclosure agreements; however, we might not be able to protect our technology, and competitors might be able to develop similar technology independently. In addition, the laws of some foreign countries might not afford our intellectual property the same protections as do the laws of the United States. Our intellectual property is not protected by patents in several countries in which we do business, and we have limited patent protection in other countries, including the PRC. The cost of applying for patents in foreign countries and translating the applications into foreign languages requires us to select carefully the inventions for which we apply for patent protection and the countries in which we seek such protection. Generally, our efforts to obtain international patents have been concentrated in the European Union and certain industrialized countries in Asia, including Korea,

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Japan, and Taiwan. If we are unable to protect our intellectual property successfully, our business, financial condition, and results of operations could be materially and adversely affected.

The PRC commercial law is relatively undeveloped compared to the commercial law in the United States. Limited protection of intellectual property is available under PRC law. Consequently, manufacturing our products in the PRC may subject us to an increased risk that unauthorized parties may attempt to copy our products or otherwise obtain or use our intellectual property. We may not be able to protect our intellectual property rights effectively. Additionally, we may not have adequate legal recourse in the event that we encounter infringements of our intellectual property in the PRC.

Our legacy inverter products may suffer higher than anticipated litigation, damage or warranty claims.

Our legacy inverter products (of which we discontinued the manufacture, engineering, and sale in December 2015 and which are reflected as Discontinued Operations in this filing) contain components that may contain errors or defects and were sold with original product warranties ranging from one to ten years with an option to purchase additional warranty coverage for up to 20 years. If any of our products are defective or fail because of their design, we might be required to repair, redesign or recall those products or to pay damages (including liquidated damages) or warranty claims, and we could suffer significant harm to our reputation. We are experiencing claims from customers and suppliers and in some cases litigation related to the legacy inverter product line. Prior suppliers of the legacy inverter business have made claims and have pursued lawsuits ranging from allegations of losses associated with raw material inventory and other commercial claims, to an allegation of improper use of proprietary design. We review such claims and vigorously defend against such lawsuits in the ordinary course of our business. We cannot assure you that any such claims or litigation brought against us will not have a material adverse effect on our business or financial statements. Our involvement in such litigation could result in significant expense to us and divert the efforts of our technical and management personnel. We also accrue a warranty reserve for estimated costs to provide warranty services including the cost of technical support, product repairs, and product replacement for units that cannot be repaired. Our estimate of costs to fulfill our warranty obligations is based on historical experience and expectation of future conditions. To the extent we experience increased warranty claim activity or increased costs associated with servicing those claims, our warranty accrual will increase, resulting in additional expenses in the line "Income (loss) from discontinued operations, net of tax” on our Consolidated Statement of Operations in future periods. We plan to continue supporting inverter customers with service maintenance and repair operations. This includes performing service to fulfill obligations under existing service maintenance contracts. There is no certainty that these can be performed profitably and could be adversely affected by higher than anticipated product failure rates, loss of critical service technician skills, an inability to obtain service parts, customer demands and disputes and cost of repair parts, among other factors. See Note 3. Discontinued Operations in Part I, Item 1 "Unaudited Condensed Consolidated Financial Statements" contained herein.

Our products may suffer from defects or errors leading to damage or warranty claims.

Our products use complex system designs and components that may contain errors or defects, particularly when we incorporate new technology into our products or release new versions. If any of our products are defective or fail because of their design, we might be required to repair, redesign or recall those products, pay damages (including liquidated damages) or warranty claims, and we could suffer significant harm to our reputation. We accrue a warranty reserve for estimated costs to provide warranty services including the cost of technical support, product repairs, and product replacement for units that cannot be repaired. Our estimate of costs to fulfill our warranty obligations is based on historical experience and expectation of future conditions. To the extent we experience increased warranty claim activity or increased costs associated with servicing those claims, our warranty accrual will increase, resulting in decreased gross profit. In recent years, we have experienced increased warranty costs for our legacy inverter product lines, which is reflected in "Income from discontinued operations, net of income taxes." See

Note 3. Discontinued Operations in Part I, Item 1 "Unaudited Condensed Consolidated Financial Statements" contained herein.

Unfavorable currency exchange rate fluctuations may lead to lower operating margins, or may cause us to raise prices, which could result in reduced sales.

Currency exchange rate fluctuations could have an adverse effect on our sales and results of operations and we could experience losses with respect to forward exchange contracts into which we may enter. Unfavorable currency fluctuations could require us to increase prices to foreign customers, which could result in lower net sales by us to such customers. Alternatively, if we do not adjust the prices for our products in response to unfavorable currency fluctuations, our results of operations could be materially and adversely affected. In addition, most sales made by our foreign subsidiaries are denominated in the currency of the country in which these products are sold and the currency in which they receive payment for such sales could be less valuable at the time of receipt as a result of exchange rate fluctuations. Given recent acquisitions in Europe, our exposure to fluctuations in the value of the Euro is becoming more significant. From time to time, we enter into forward exchange contracts and local currency purchased options to reduce currency exposures related to likely or pending transactions including those arising from intercompany sales of inventory. However, we cannot be certain that our efforts will be adequate to protect us against significant currency

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fluctuations or that such efforts will not expose us to additional exchange rate risks, which could materially and adversely affect our results of operations.

Recent developments relating to the United Kingdom's referendum vote in favor of leaving the European Union and related actions could adversely affect us.

On June 23, 2016, the United Kingdom (UK) held a referendum in which voters approved an exit from the EU. On March 29, 2017, the UK's ambassador to the EU delivered a letter to the president of the European Council that gave formal notice under Article 50 of the Lisbon Treaty of Britain's withdrawl from the EU, commonly referred to as "Brexit". As a result, negotiations have commenced to determine the terms of the UK's withdrawl from the EU as well as its relationship with the EU going forward, including the terms of trade between the UK and the EU. Although it is unknown what those terms will be, it is possible that there will be greater restrictions on imports and exports between the UK and EU countries and increased regulatory complexities. These changes may adversely affect our sales, operations and financial results. In particular, our operations in the UK may be adversely affected by extreme fluctuations in the UK exchange rates. Moreover, the imposition of any import restrictions and duties levied on our UK products as imported for EU customers may make our products more expensive for such customers and less competitive from a pricing perspective.

Changes in the value of the Chinese yuan could impact the cost of our operation in Shenzhen, PRC and our sales growth in our PRC markets.

The PRC government is continually pressured by its trading partners to allow its currency to float in a manner similar to other major currencies. In 2016, China’s currency devalued by a cumulative 6.5% against the U.S. dollar, making Chinese exports cheaper and imports into China more expensive by that amount. This devaluation negatively impacts U.S. businesses that trade with China because it puts them at a cost disadvantage. Any change in the value of the Chinese yuan may impact our ability to control the cost of our products in the world market. Specifically, the decision by the PRC government to allow the yuan to begin to float against the United States dollar could significantly increase the labor and other costs incurred in the operation of our Shenzhen facility and the cost of raw materials, parts, components, and subassemblies that we source in the PRC, thereby having a material and adverse effect on our financial condition and results of operations.

Difficulties with our enterprise resource planning (“ERP”) system and other parts of our global information technology system could harm our business and results of operation.

Like many multinational corporations, we maintain a global information technology system, including software products licensed from third parties. Any system, network or Internet failures, misuse by system users, the hacking into or disruption caused by unauthorized access or loss of license rights could disrupt our ability to timely and accurately manufacture and ship products or to report our financial information in compliance with the timelines mandated by the SEC. Any such failure, misuse, hacking, disruptions or loss would likely cause a diversion of management's attention from the underlying business and could harm our operations. In addition, a significant failure of our global information technology system could adversely affect our ability to complete an evaluation of our internal controls and attestation activities pursuant to Section 404 of the Sarbanes-Oxley Act of 2002.

If our network security measures are breached and unauthorized access is obtained to a customer's data or our data or our information technology systems, we may incur significant legal and financial exposure and liabilities.

As part of our day-to-day business, we store our data and certain data about our customers in our global information technology system. Unauthorized access to our data, including any regarding our customers, could expose us to a risk of loss of this information, loss of business, litigation and possible liability. These security measures may be breached by intentional misconduct by computer hackers, as a result of third-party action, employee error, malfeasance or otherwise. Additionally, third parties may attempt to fraudulently induce employees or customers into disclosing sensitive information such as user names, passwords or other information in order to gain access to our customers' data or our data, including our intellectual property and other confidential business information, or our information technology systems. Because the techniques used to obtain unauthorized access, or to sabotage systems, change frequently and generally are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures. Any security breach could result in a loss of confidence by our customers, damage our reputation, disrupt our business, lead to legal liability and negatively impact our future sales.

The loss of any of our key personnel could significantly harm our results of operations and competitive position.

Our success depends to a significant degree upon the continuing contributions of our key management, technical, marketing, and sales employees. We may not be successful in retaining our key employees or attracting or retaining additional skilled personnel as required. Failure to retain or attract key personnel could significantly harm our results of operations and

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competitive position. We must develop our personnel to provide succession plans capable of maintaining continuity in the midst of the inevitable unpredictability of personnel retention. While we have plans for key management succession and long-term compensation plans designed to retain our senior employees, if our succession plans do not operate effectively, our business could be adversely affected.

Deterioration of demand for our inverter services could negatively impact our business.

Our business may be adversely affected by changes in national or global demand for our inverter service repair capabilities. Any such changes could adversely affect the carrying amount of our inverter service inventories, thereby negatively affecting our financial results from Continuing Operations.

We have been, and in the future may again be, involved in litigation. Litigation is costly and could result in further restrictions on our ability to conduct business or make use of market relationships we have developed, or an inability to prevent others from using technology.

Litigation may be necessary to enforce our commercial or property rights, to defend ourselves against claimed violations of such rights of others, or to protect our interests in regulatory, tax, customs, commercial, and other disputes or similar matters. Litigation often requires a substantial amount of our management's time and attention, as well as financial and other resources, including:


•	substantial costs in the form of legal fees, fines, and royalty payments;


•	restrictions on our ability to sell certain products or in certain markets;


•	an inability to prevent others from using technology we have developed; and


•	a need to redesign products or seek alternative marketing strategies.

Any of these events could have a significant adverse effect on our business, financial condition, and results of operations.

Return on investments or interest rate declines on plan investments could result in additional unfunded pension obligations for the HiTek Power pension plan.

We currently have unfunded obligations in the HiTek Power pension plan. The extent of future contributions to the pension plan depends heavily on market factors such as the discount rate used to calculate our future obligations and the actual return on plan assets which enable future payments. We estimate future contributions to the plan using assumptions with respect to these and other items. Changes to those assumptions could have a significant effect on future contributions. Additionally, a material deterioration in the funded status of the plan could increase pension expenses and reduce our profitability. See

Note 13. Pension Liability in Part I, Item 1 "Unaudited Condensed Consolidated Financial Statements" contained herein.

Funds associated with our marketable securities that we have traditionally held as short-term investments may not be liquid or readily available.

In the past, certain of our investments have been affected by external market conditions that impacted the liquidity of the investment. We do not currently have investments with reduced liquidity, but external market conditions that we cannot anticipate or mitigate may impact the liquidity of our marketable securities. Any changes in the liquidity associated with these investments may require us to borrow funds at terms that are not favorable or repatriate cash from international locations at a significant cost. We cannot be certain that we will be able to borrow funds or continue to repatriate cash on favorable terms, or at all. If we are unable to do so, our available cash may be reduced until those investments can be liquidated. The lack of available cash may prevent us from taking advantage of business opportunities that arise and may prevent us from executing some of our business plans, either of which could cause our business, financial condition or results of operations to be materially and adversely affected.

Our intangible assets may become impaired.

As of September 30, 2017 , we have $53.5 million of goodwill and $34.4 million in intangible assets. We periodically review the estimated useful lives of our goodwill and identifiable intangible assets, taking into consideration any events or circumstances that might result in either a diminished fair value, or for intangible assets, a revised useful life. The events and circumstances include significant changes in the business climate, legal factors, operating performance indicators, and competition. Any impairment or revised useful life could have a material and adverse effect on our financial position and results of operations, and could harm the trading price of our common stock.

We are subject to numerous governmental regulations.

We are subject to federal, state, local and foreign regulations, including environmental regulations and regulations relating to the design and operation of our products and control systems and regulations governing the import, export and customs duties related to our products. We might incur significant costs as we seek to ensure that our products meet safety and emissions standards, many of which vary across the states and countries in which our products are used. In the past, we have invested significant

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resources to redesign our products to comply with these directives. Compliance with future regulations, directives, and standards could require us to modify or redesign some products, make capital expenditures, or incur substantial costs. Also, we may incur significant costs in complying with the myriad of different import, export and customs regulations as we seek to sell our products internationally. If we do not comply with current or future regulations, directives, and standards:


•	we could be subject to fines and penalties;


•	our production or shipments could be suspended; and


•	we could be prohibited from offering particular products in specified markets.

If we were unable to comply with current or future regulations, directives and standards, our business, financial condition and results of operations could be materially and adversely affected.

Financial reform legislation will result in new laws and regulations that may increase our costs of operations.

The Dodd-Frank Wall Street Reform and Consumer Protection Act (the "Dodd-Frank Act") requires various federal agencies to adopt a broad range of new implementing rules and regulations, and to prepare numerous studies and reports for Congress. On August 22, 2012, under the Dodd-Frank Act, the SEC adopted new requirements for companies that use certain minerals and metals, known as conflict minerals, in their products, whether or not these products are manufactured by third parties. These requirements require companies to perform due diligence, disclose and report whether or not such minerals originate from the Democratic Republic of Congo and adjoining countries. We have to perform sufficient due diligence to determine whether such minerals are used in the manufacture of our products. However, the implementation of these new requirements could adversely affect the sourcing, availability and pricing of such minerals if they are found to be used in the manufacture of our products. In addition, we incur costs to comply with the disclosure requirements, including costs related to determining the source of any of the relevant minerals and metals used in our products. Since our supply chain is complex, we may not be able to sufficiently verify the origins for these minerals and metals used in our products through the due diligence procedures that we implement, which may harm our reputation. In such event, we may also face difficulties in satisfying customers who require that all of the components of our products are certified as conflict mineral free.

The market price of our common stock has fluctuated and may continue to fluctuate for reasons over which we have no control.

The stock market has from time to time experienced, and is likely to continue to experience, extreme price and volume fluctuations. Prices of securities of technology companies have been especially volatile and have often fluctuated for reasons that are unrelated to their operating performance. In the past, companies that have experienced volatility in the market price of their stock have been the subject of securities class action litigation. If we were the subject of securities class action litigation, it could result in substantial costs and a diversion of management’s attention and resources.

Our operating results are subject to fluctuations, and if we fail to meet the expectations of securities analysts or investors, our share price may decrease significantly .

Our annual and quarterly results may vary significantly depending on various factors, many of which are beyond our control. Because our operating expenses are based on anticipated revenue levels, our sales cycle for development work is relatively long, and a high percentage of our expenses are fixed for the short term, a small variation in the timing of recognition of revenue can cause significant variations in operating results from period to period. If our earnings do not meet the expectations of securities analysts or investors, the price of our stock could decline.

Deterioration of economic conditions could negatively impact our business.

Our business may be adversely affected by changes in national or global economic conditions, including inflation, interest rates, availability of capital markets, consumer spending rates, energy availability and costs (including fuel surcharges) and the effects of governmental initiatives to manage economic conditions. Any such changes could adversely affect the demand for our products both in domestic and export markets, or the cost and availability of our needed raw materials and packaging materials, thereby negatively affecting our financial results.

A disruption in credit and other financial markets and deterioration of national and global economic conditions, could, among other things:


•	negatively impact global demand for our products, which could result in a reduction of sales, operating income and cash flows;


•	make it more difficult or costly for us to obtain financing for our operations or investments or to refinance our debt in the future;


•	cause our lenders to depart from prior credit industry practice and make more difficult or expensive the granting of any technical or other waivers under our debt agreements to the extent we may seek them in the future;


•	decrease the value of our investments; and


•	impair the financial viability of our insurers.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Sales of Unregistered Securities

None.

Issuer Purchases of Equity Securities



Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Program (1)	Approximate Value of Shares that May Yet Be Purchased Under the Program (2)
August 1 - August 31, 2017	351,292	$	71.16	351,292	$	75,003,000
(1) In September 2015, our Board of Directors authorized a program to repurchase up to $150.0 million of our stock over a thirty-month period. Under this program, in August 2017, we entered into a Fixed Dollar Share Repurchase Agreement to repurchase $25.0 million of shares of our common stock in the open market.
(2) While the Company has remaining authority to repurchase up to $75.0 million of our common stock, the Company has no current commitments or obligations to repurchase any shares of our common stock.


ITEM 6.	EXHIBITS



31.1		Certification of the Chief Executive Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2		Certification of the Chief Financial Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1		Certification of the Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2		Certification of the Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS		XBRL Instance Document

101.SCH		XBRL Taxonomy Extension Schema Document

101.CAL		XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF		XBRL Taxonomy Extension Definition Linkbase Document

101.LAB		XBRL Taxonomy Extension Label Linkbase Document

101.PRE		XBRL Taxonomy Extension Presentation Linkbase Document

		Attached as Exhibit 101 to this report are the following materials from Advanced Energy, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Statements of Earnings, (ii) the Condensed Consolidated Statements of Comprehensive Earnings, (iii) the Condensed Consolidated Balance Sheets, (iv) the Condensed Consolidated Statements of Cash Flows, (v) the Condensed Consolidated Statements of Stockholders’ Equity, and (vi) the Notes to the Condensed Consolidated Financial Statements.

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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.



		ADVANCED ENERGY INDUSTRIES, INC.

Dated:	October 30, 2017	/s/ Thomas Liguori
		Thomas Liguori
		Executive Vice President & Chief Financial Officer

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INDEX TO EXHIBITS



31.1	Certification of the Chief Executive Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

31.2	Certification of the Chief Financial Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.1	Certification of the Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

32.2	Certification of the Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS	XBRL Instance Document

101.SCH	XBRL Taxonomy Extension Schema Document

101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

101.LAB	XBRL Taxonomy Extension Label Linkbase Document

101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

	Attached as Exhibit 101 to this report are the following materials from Advanced Energy, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Statements of Earnings, (ii) the Condensed Consolidated Statements of Comprehensive Earnings, (iii) the Condensed Consolidated Balance Sheets, (iv) the Condensed Consolidated Statements of Cash Flows, (v) the Condensed Consolidated Statements of Stockholders’ Equity, and (vi) the Notes to the Condensed Consolidated Financial Statements.

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Part I Financial Statements Item 1. Unaudited Condensed Consolidated Financial Statements Note 1. Basis Of Presentation Note 3. Discontinued Operations Note 2. Business Acquisition Note 4. Income Taxes Note 5. Earnings Per Share Note 6. Marketable Securities and Assets Measured At Fair Value Note 7. Derivative Financial Instruments Note 8. Inventories Note 9. Property and Equipment Note 10. Goodwill Note 11. Intangible Assets Note 12. Warranties Note 13. Pension Liability Note 14. Stock-based Compensation Note 15. Commitments and Contingencies Note 16. Related Party Transactions Note 17. Significant Customer Information Note 18. Credit Facility Item 2. Management S Discussion and Analysis Of Financial Condition and Results Of Operations Note 1. Operation and Summary Of Significant Accounting Policies and Estimates Item 3. Quantitative and Qualitative Disclosures About Market Risk Item 4. Controls and Procedures Part II Other Information Item 1. Legal Proceedings Item 1A. Risk Factors Item 2. Unregistered Sales Of Equity Securities and Use Of Proceeds Item 6. Exhibits

31.1 Certification of the Chief Executive Officer Pursuant to Rule13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section302 of the Sarbanes-Oxley Act of 2002. 31.2 Certification of the Chief Financial Officer Pursuant to Rule13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to Section302 of the Sarbanes-Oxley Act of 2002. 32.1 Certification of the Chief Executive Officer Pursuant to 18U.S.C. Section1350, as adopted pursuant to Section906 of the Sarbanes-Oxley Act of 2002. 32.2 Certification of the Chief Financial Officer Pursuant to 18U.S.C. Section1350, as adopted pursuant to Section906 of the Sarbanes-Oxley Act of 2002.

Certificates of deposit