10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended April 2, 2023

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File No. 001-06462

TERADYNE, INC.

(Exact name of registrant as specified in its charter)

Massachusetts	04-2272148
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
600 Riverpark Drive, North Reading, Massachusetts	01864
(Address of Principal Executive Offices)	(Zip Code)

978-370-2700

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.125 per share	TER	Nasdaq Stock Market LLC

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 the filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files)    Yes  ☒    No  ☐

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

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Emerging growth company	☐
Smaller reporting company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

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

The number of shares outstanding of the registrant’s only class of Common Stock as of May 1, 2023 was 155,038,743 shares.

TERADYNE, INC.

INDEX

		Page No.
PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited):
	Condensed Consolidated Balance Sheets as of April 2, 2023 and December 31, 2022		1
	Condensed Consolidated Statements of Operations for the Three Months ended April 2, 2023 and April 3, 2022		2
	Condensed Consolidated Statements of Comprehensive Income for the Three Months ended April 2, 2023 and April 3, 2022		3
	Condensed Statements of Convertible Common Shares and Shareholders’ Equity for the Three Months Ended April 2, 2023 and April 3, 2022		4
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended April 2, 2023 and April 3, 2022		5
	Notes to Condensed Consolidated Financial Statements		6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		26
Item 3.	Quantitative and Qualitative Disclosures about Market Risk		32
Item 4.	Controls and Procedures		33
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		33
Item 1A.	Risk Factors		33
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		34
Item 4.	Mine Safety Disclosures		34
Item 6.	Exhibits		35

PART I

Item 1: Financial Statements

TERADYNE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	April 2, 2023			December 31, 2022
	(in thousands, except per share amount)
ASSETS
Current assets:
Cash and cash equivalents	$	649,208		$	854,773
Marketable securities		92,895			39,612
Accounts receivable, less allowance for credit losses of $1,973 and $1,955 at April 2, 2023 and December 31, 2022, respectively		455,334			491,145
Inventories, net		352,058			325,019
Prepayments		549,114			532,962
Other current assets		13,367			14,404
Total current assets		2,111,976			2,257,915
Property, plant and equipment, net		432,381			418,683
Operating lease right-of-use assets, net		74,939			73,734
Marketable securities		116,938			110,777
Deferred tax assets		148,527			142,784
Retirement plans assets		11,650			11,761
Other assets		27,922			28,925
Acquired intangible assets, net		49,246			53,478
Goodwill		409,828			403,195
Total assets	$	3,383,407		$	3,501,252
LIABILITIES
Current liabilities:
Accounts payable	$	142,382		$	139,722
Accrued employees’ compensation and withholdings		119,433			212,266
Deferred revenue and customer advances		119,355			148,285
Other accrued liabilities		114,739			112,271
Operating lease liabilities		19,985			18,594
Income taxes payable		77,089			65,010
Current debt		35,109			50,115
Total current liabilities		628,092			746,263
Retirement plans liabilities		121,303			116,005
Long-term deferred revenue and customer advances		41,797			45,131
Long-term other accrued liabilities		16,211			15,981
Deferred tax liabilities		2,325			3,267
Long-term operating lease liabilities		65,082			64,176
Long-term incomes taxes payable		59,135			59,135
Total liabilities		933,945			1,049,958
Commitments and contingencies (Note P)
SHAREHOLDERS’ EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized; 155,445 and 155,759 shares issued and outstanding at April 2, 2023 and December 31, 2022, respectively		19,431			19,470
Additional paid-in capital		1,772,352			1,755,963
Accumulated other comprehensive loss		(36,466	)		(49,868	)
Retained earnings		694,145			725,729
Total shareholders’ equity		2,449,462			2,451,294
Total liabilities and shareholders’ equity	$	3,383,407		$	3,501,252

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022, are an integral part of the condensed consolidated financial statements.

1

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands, except per share amount)
Revenues:
Products	$	473,418		$	625,875
Services		144,111			129,495
Total revenues		617,529			755,370
Cost of revenues:
Cost of products		198,665			243,016
Cost of services		62,444			57,421
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		261,109			300,437
Gross profit		356,420			454,933
Operating expenses:
Selling and administrative		150,955			140,185
Engineering and development		105,762			108,116
Acquired intangible assets amortization		4,802			5,063
Restructuring and other		2,037			15,714
Total operating expenses		263,556			269,078
Income from operations		92,864			185,855
Non-operating (income) expense:
Interest income		(5,258	)		(703	)
Interest expense		987			1,012
Other (income) expense, net		51			5,187
Income before income taxes		97,084			180,359
Income tax provision		13,553			18,431
Net income	$	83,531		$	161,928
Net income per common share:
Basic	$	0.54		$	1.00
Diluted	$	0.50		$	0.92
Weighted average common shares—basic		155,904			162,048
Weighted average common shares—diluted		166,308			175,575

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022, are an integral part of the condensed consolidated financial statements.

2

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Net income	$	83,531		$	161,928
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax of $0 and $0, respectively		9,309			(8,076	)
Available-for-sale marketable securities:
Unrealized gains (losses) on marketable securities arising during period, net of tax of $503 and $(1,333), respectively		2,294			(5,388	)
Less: Reclassification adjustment for losses (gains) included in net income, net of tax of $2 and $(18), respectively		5			(65	)
		2,299			(5,453	)
Cash flow hedges:
Unrealized gains arising during period, net of tax of $167, $0, respectively		596			—
Less: Reclassification adjustment for losses included in net income, net of tax of $338 and $0, respectively		1,200			—
		1,796			—
Defined benefit post-retirement plan:
Amortization of prior service credit, net of tax of $0 and $0, respectively		(2	)		(2	)
Other comprehensive income (loss)		13,402			(13,531	)
Comprehensive income	$	96,933		$	148,397

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022, are an integral part of the condensed consolidated financial statements.

3

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE COMMON SHARES

AND SHAREHOLDERS’ EQUITY

(Unaudited)

				Shareholders’ Equity
	Convertible Common Shares Value			Common Stock Shares			Common Stock Par Value			Additional Paid-in Capital			Accumulated Other Comprehensive (Loss) Income			Retained Earnings			Total Shareholders’ Equity
				(in thousands)
For the Three Months Ended April 2, 2023
Balance, December 31, 2022	$	—			155,759		$	19,470		$	1,755,963		$	(49,868	)	$	725,729		$	2,451,294
Net issuance of common stock under stock-based plans					579			73			(3,943	)								(3,870	)
Stock-based compensation expense											20,332									20,332
Repurchase of common stock					(893	)		(112	)								(97,936	)		(98,048	)
Cash dividends ($0.11 per share)																	(17,179	)		(17,179	)
Settlements of convertible notes					324			41			(41	)								—
Exercise of convertible notes hedge call options					(324	)		(41	)		41									—
Net income																	83,531			83,531
Other comprehensive income														13,402						13,402
Balance, April 2, 2023	$	—			155,445		$	19,431		$	1,772,352		$	(36,466	)	$	694,145		$	2,449,462
For the Three Months Ended April 3, 2022
Balance, December 31, 2021	$	1,512			162,251		$	20,281		$	1,811,545		$	(5,948	)	$	736,566		$	2,562,444
Net issuance of common stock under stock-based plans					552			70			(14,644	)								(14,574	)
Stock-based compensation expense											14,204									14,204
Repurchase of common stock					(1,750	)		(219	)								(211,247	)		(211,466	)
Cash dividends ($0.11 per share)																	(17,908	)		(17,908	)
Settlements of convertible notes					509			64			(157	)								(93	)
Exercise of convertible notes hedge call options					(509	)		(64	)		64									—
Cumulative-effect of change in accounting principle related to convertible debt		(1,512	)								(99,322	)					92,850			(6,472	)
Net income																	161,928			161,928
Other comprehensive loss														(13,531	)					(13,531	)
Balance, April 3, 2022	$	—			161,053		$	20,132		$	1,711,690		$	(19,479	)	$	762,189		$	2,474,532

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022, are an integral part of the condensed consolidated financial statements.

4

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Cash flows from operating activities:
Net income	$	83,531		$	161,928
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation		22,680			22,503
Stock-based compensation		18,885			12,894
Provision for excess and obsolete inventory		5,610			1,590
Amortization		4,926			5,233
Deferred taxes		(7,634	)		11,288
(Gains) losses on investments		(2,238	)		2,001
Other		108			177
Changes in operating assets and liabilities
Accounts receivable		37,204			208
Inventories		(23,697	)		(9,480	)
Prepayments and other assets		(15,380	)		(74,305	)
Accounts payable and other accrued expenses		(83,208	)		(124,382	)
Deferred revenue and customer advances		(32,705	)		6,747
Retirement plan contributions		(1,234	)		(1,329	)
Income taxes		12,488			(7,611	)
Net cash provided by operating activities		19,336			7,462
Cash flows from investing activities:
Purchases of property, plant and equipment		(41,444	)		(43,999	)
Purchases of marketable securities		(69,276	)		(165,977	)
Proceeds from sales of marketable securities		7,929			30,581
Proceeds from maturities of marketable securities		7,468			96,682
Proceeds from life insurance		460			—
Net cash used for investing activities		(94,863	)		(82,713	)
Cash flows from financing activities:
Issuance of common stock under stock purchase and stock option plans		15,997			16,475
Repurchase of common stock		(93,308	)		(201,465	)
Payments related to net settlement of employee stock compensation awards		(19,870	)		(31,048	)
Dividend payments		(17,165	)		(17,895	)
Payments of convertible debt principal		(15,155	)		(20,694	)
Net cash used for financing activities		(129,501	)		(254,627	)
Effects of exchange rate changes on cash and cash equivalents		(537	)		2,282
Decrease in cash and cash equivalents		(205,565	)		(327,596	)
Cash and cash equivalents at beginning of period		854,773			1,122,199
Cash and cash equivalents at end of period	$	649,208		$	794,603
Non-cash investing activities:
Capital expenditures incurred but not yet paid:	$	3,823		$	2,500

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022, are an integral part of the condensed consolidated financial statements.

5

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

A. THE COMPANY

Teradyne, Inc. (“Teradyne”) is a leading global supplier of automated test equipment and robotics solutions. Teradyne designs, develops, manufactures and sells automatic test systems and robotics products. Teradyne’s automatic test systems are used to test semiconductors, wireless products, data storage and complex electronics systems in many industries including consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradyne’s robotics products include collaborative robotic arms and autonomous mobile robots (“AMRs”) used by global manufacturing, logistics and industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing and logistics costs. Teradyne’s automatic test equipment and robotics products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• storage and system level test (“Storage Test”) systems, defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

• wireless test (“Wireless Test”) systems; and

• robotics (“Robotics”) products.

B. ACCOUNTING POLICIES

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts may have been reclassified to conform to the current year presentation. The December 31, 2022 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by United States of America generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 22, 2023, for the year ended December 31, 2022.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent liabilities. On an on-going basis, management evaluates its estimates, including those related to inventories, investments, goodwill, intangible and other long-lived assets, accounts receivable, income taxes, deferred tax assets and liabilities, pensions, warranties, contingent consideration liabilities, and loss contingencies. Management bases its estimates on historical experience and on appropriate and customary assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgements about the carrying values of assets and liabilities that are not readily apparent from other sources. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Management is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change, as new events occur and additional information is obtained. Actual results may differ significantly from these estimates under different assumptions or conditions.

C. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

For the three months ended April 2, 2023, there were no recently issued accounting pronouncements that had, or are expected to have, a material impact to Teradyne’s consolidated financial statements.

6

D. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Robotics
	System on- a-Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		Wireless Test		Corporate and Eliminations			Total
	(in thousands)
For the Three Months Ended April 2, 2023 (1)
Timing of Revenue Recognition
Point in Time	$	273,275	$	61,258	$	56,857	$	70,029	$	15,959	$	35,363	$	—		$	512,741
Over Time		73,559		6,917		17,774		2,008		1,218		3,312		—			104,788
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
Geographical Market
Asia Pacific	$	283,259	$	63,695	$	39,590	$	13,217	$	1,502	$	23,231	$	—		$	424,494
Americas		41,568		2,944		28,980		20,447		11,806		12,846		—			118,591
Europe, Middle East and Africa		22,007		1,536		6,061		38,373		3,869		2,598		—			74,444
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
For the Three Months Ended April 3, 2022 (1)
Timing of Revenue Recognition
Point in Time	$	323,456	$	88,723	$	105,288	$	83,182	$	16,744	$	48,429	$	(346	)	$	665,476
Over Time		63,129		7,033		13,380		2,102		1,161		3,089		—			89,894
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370
Geographical Market
Asia Pacific	$	340,741	$	93,151	$	73,784	$	18,621	$	2,592	$	34,946	$	—		$	563,835
Americas		29,714		2,046		36,608		28,148		8,564		9,687		(346	)		114,421
Europe, Middle East and Africa		16,130		559		8,276		38,515		6,749		6,885		—			77,114
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370

(1) Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

Contract Balances

During the three months ended April 2, 2023 and April 3, 2022, Teradyne recognized $50.7 million and $35.0 million, respectively, that was included within the deferred revenue and customer advances balances at the beginning of the period. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. As of April 2, 2023, Teradyne had $1,240.7 million of unsatisfied performance obligations. Teradyne expects to recognize 88% of the remaining performance obligations in the next 12 months and 12% in 1-3 years.

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	April 2, 2023		December 31, 2022
	(in thousands)
Maintenance, service and training	$	70,609	$	78,089
Extended warranty		49,343		56,180
Customer advances, undelivered elements and other		41,200		59,147
Total deferred revenue and customer advances	$	161,152	$	193,416

7

Accounts Receivable

During the three months ended April 2, 2023 and April 3, 2022, Teradyne sold certain trade accounts receivables on a non-recourse basis to third-party financial institutions pursuant to factoring agreements. During the three months ended April 2, 2023 and April 3, 2022, total trade accounts receivable sold under the factoring agreements were $34.2 million and $19.4 million, respectively. Factoring fees for the sales of receivables were recorded in interest expense and were not material. Teradyne accounted for these transactions as sales of receivables and presented cash proceeds as cash provided by operating activities in the consolidated statements of cash flows.

E. INVENTORIES 

Inventories, net consisted of the following at April 2, 2023 and December 31, 2022:

	April 2, 2023		December 31, 2022
	(in thousands)
Raw material	$	264,035	$	256,065
Work-in-process		43,987		37,982
Finished goods		44,036		30,972
	$	352,058	$	325,019

Inventory reserves at April 2, 2023 and December 31, 2022 were $138.6 million and $136.8 million, respectively.

F. FINANCIAL INSTRUMENTS

Cash Equivalents

Teradyne considers all highly liquid investments with maturities of three months or less at the date of acquisition to be cash equivalents.

Marketable Securities

Teradyne’s equity and debt mutual funds are classified as Level 1 and available-for-sale debt securities are classified as Level 2. Contingent consideration is classified as Level 3. The vast majority of Level 2 securities are fixed income securities priced by third party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities.

During the three months ended April 2, 2023 and April 3, 2022, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.

Realized gains recorded in the three months ended April 2, 2023 and April 3, 2022 were $0.3 million and $0.4 million, respectively. Realized losses recorded in the three months ended April 2, 2023 and April 3, 2022 were $0.1 million and $0.2 million, respectively. Realized gains and losses are included in other (income) expense, net.

Unrealized gains on equity securities recorded in the three months ended April 2, 2023 were $2.0 million. Unrealized losses on equity securities recorded in the three months ended April 3, 2022 were $2.2 million. Unrealized gains and losses on equity securities are included in other (income) expense, net.

Unrealized gains and losses on available-for-sale debt securities are included in accumulated other comprehensive income (loss) on the balance sheet.

The cost of securities sold is based on average cost.

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of April 2, 2023 and December 31, 2022.

8

	April 2, 2023
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	244,542	$	—	$	—	$	244,542
Cash equivalents		252,374		152,292		—		404,666
Available-for-sale securities:
U.S. Treasury securities		—		52,168		—		52,168
Corporate debt securities		—		51,369		—		51,369
Commercial paper		—		47,548		—		47,548
U.S. government agency securities		—		7,394		—		7,394
Debt mutual funds		6,800		—		—		6,800
Certificates of deposit and time deposits		—		1,754		—		1,754
Non-U.S. government securities		—		554		—		554
Equity securities:
Mutual funds		42,246		—		—		42,246
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Derivative liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	496,916	$	152,292	$	—	$	649,208
Marketable securities		—		92,895		—		92,895
Long-term marketable securities		49,046		67,892		—		116,938
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Other current liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

9

	December 31, 2022
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	632,417	$	—	$	—	$	632,417
Cash equivalents		161,767		60,589		—		222,356
Available for sale securities:
Corporate debt securities		—		50,856		—		50,856
U.S. Treasury securities		—		39,649		—		39,649
Commercial paper		—		7,159		—		7,159
Debt mutual funds		6,580		—		—		6,580
U.S. government agency securities		—		6,352		—		6,352
Certificates of deposit and time deposits		—		1,740		—		1,740
Non-U.S. government securities		—		535		—		535
Equity securities:
Mutual funds		37,518		—		—		37,518
Total	$	838,282	$	166,880	$	—	$	1,005,162
Derivative assets		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Derivative liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	794,184	$	60,589	$	—	$	854,773
Marketable securities		—		39,612		—		39,612
Long-term marketable securities		44,098		66,679		—		110,777
Prepayments		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Other current liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

The carrying amounts and fair values of Teradyne’s financial instruments at April 2, 2023 and December 31, 2022 were as follows:

	April 2, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	649,208	$	649,208	$	854,773	$	854,773
Marketable securities		209,833		209,833		150,389		150,389
Derivative assets		—		—		86		86
Liabilities
Derivative liabilities		1,980		1,980		4,215		4,215
Convertible debt		35,109		119,586		50,115		139,007

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The fair values of accounts receivable, net and accounts payable approximate the carrying value due to the short-term nature of these instruments.

The following table summarizes the composition of available-for-sale marketable securities at April 2, 2023:

	April 2, 2023
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
U.S. Treasury securities	$	55,615	$	38	$	(3,485	)	$	52,168	$	49,669
Corporate debt securities		56,040		41		(4,712	)		51,369		49,131
Commercial paper		47,225		337		(14	)		47,548		16,845
U.S. government agency securities		7,427		9		(42	)		7,394		4,419
Debt mutual funds		7,130		—		(330	)		6,800		3,312
Certificates of deposit and time deposits		1,754		—		—			1,754		—
Non-U.S. government securities		554		—		—			554		—
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	92,915	$	337	$	(357	)	$	92,895	$	60,438
Long-term marketable securities		82,830		88		(8,226	)		74,692		62,938
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

The following table summarizes the composition of available-for-sale marketable securities at December 31, 2022:

	December 31, 2022
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Corporate debt securities	$	57,006	$	3	$	(6,153	)	$	50,856	$	50,667
U.S. Treasury securities		44,030		—		(4,381	)		39,649		39,649
Commercial paper		7,089		70		—			7,159		—
Debt mutual funds		6,997		—		(417	)		6,580		3,095
U.S. government agency securities		6,442		—		(90	)		6,352		6,352
Certificates of deposit and time deposits		1,740		—		—			1,740		—
Non-U.S. government securities		535		—		—			535		—
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

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Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	39,950	$	70	$	(408	)	$	39,612	$	30,713
Long-term marketable securities		83,889		3		(10,633	)		73,259		69,050
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

As of April 2, 2023, the fair market value of investments with unrealized losses less than one year and greater than one year totaled $68.4 million and $55.0 million, respectively. As of December 31, 2022, the fair market value of investments with unrealized losses for less than one year and greater than one year totaled $66.3 million and $33.4 million, respectively.

Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at April 2, 2023 and December 31, 2022 were not other than temporary.

The contractual maturities of investments in available-for-sale securities held at April 2, 2023 were as follows:

	April 2, 2023
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	92,915	$	92,895
Due after 1 year through 5 years		31,721		30,672
Due after 5 years through 10 years		5,022		4,612
Due after 10 years		38,957		32,608
Total	$	168,615	$	160,787

Contractual maturities of investments in available-for-sale securities held at April 2, 2023 exclude debt mutual funds with a fair market value of $6.8 million, as they do not have a contractual maturity date.

Derivatives

Teradyne conducts business in various foreign countries, with certain transactions denominated in local currencies. As a result, Teradyne is exposed to risks relating to changes in foreign currency exchange rates. Teradyne’s foreign currency risk management objective is to minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, and changes in its cash inflows attributable to the forecasted cash flows from certain foreign currency denominated revenues.

To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies.

Teradyne also enters into foreign currency forward and option contracts designated as cash flow hedges to hedge the risk of changes in its cash inflows attributable to changes in foreign currency exchange rates. The cash flow hedges have maturities of less than six months and mature in the period of revenue recognition for certain products and services in backlog and forecasted to be recognized in a future period. Teradyne evaluates cash flow hedges for effectiveness at inception based on the critical terms match method. The hedges are not expected to incur any ineffectiveness however a quarterly qualitative assessment of effectiveness is done to determine if the critical terms match method remains appropriate to use. The change in fair value of the contracts is recorded in accumulated other comprehensive income (loss) and reclassified to earnings at maturity date.

Teradyne does not use derivative financial instruments for speculative purposes.

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At April 2, 2023 and December 31, 2022, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:

	April 2, 2023								December 31, 2022
	Buy Position			Sell Position		Net Total			Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(57.7	)	$	—	$	(57.7	)	$	(37.1	)	$	—	$	(37.1	)
Taiwan Dollar		(38.3	)		—		(38.3	)		(29.2	)		—		(29.2	)
Korean Won		(3.1	)		—		(3.1	)		(6.4	)		—		(6.4	)
British Pound Sterling		(1.2	)		—		(1.2	)		(1.2	)		—		(1.2	)
Singapore Dollar		—			35.7		35.7			—			33.5		33.5
Euro		—			24.3		24.3			—			38.4		38.4
Philippine Peso		—			2.5		2.5			—			2.7		2.7
Chinese Yuan		—			1.9		1.9			—			2.2		2.2
Total	$	(100.3	)	$	64.4	$	(35.9	)	$	(73.9	)	$	76.8	$	2.9

The fair value of the outstanding contracts was a loss of $1.1 million and $0.9 million, respectively, at April 2, 2023 and December 31, 2022.

Unrealized gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in other (income) expense, net.

At April 2, 2023 and December 31, 2022, Teradyne had the following cash flow hedge contracts to buy and sell non-U.S. currencies for U.S. dollars with the following notional amounts:

	April 2, 2023							December 31, 2022
	Buy Position			Sell Position		Net Total		Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(13.6	)	$	30.2	$	16.6	$	(23.4	)	$	61.2	$	37.8
Taiwan Dollar		—			—		—		(5.5	)		10.9		5.4
Total	$	(13.6	)	$	30.2	$	16.6	$	(28.9	)	$	72.1	$	43.2

The fair value of the outstanding cash flow hedge contracts was a loss of $0.9 million and $3.2 million at April 2, 2023 and December 31, 2022, respectively.

Unrealized gains and losses on foreign currency cash flow hedge contracts are included in accumulated other comprehensive income (loss). At maturity the gains or losses associated with cash flow hedge contracts are recorded to revenue.

The following table summarizes the fair value of derivative instruments as of April 2, 2023 and December 31, 2022:

	Balance Sheet Location		April 2, 2023			December 31, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Prepayments	$	—		$	86
Foreign exchange forward contracts		Other current liabilities		(1,057	)		(990	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Other current liabilities		(923	)		(3,225	)
Total derivatives			$	(1,980	)	$	(4,129	)

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The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended April 2, 2023 and April 3, 2022:

			For the Three Months Ended
	Location of Losses (Gains) Recognized in Statement of Operations		April 2, 2023		April 3, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Other (income) expense, net	$	1,259	$	(1,752	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Revenue		1,538		—
Total Derivatives			$	2,797	$	(1,752	)

The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities

denominated in foreign currencies. For the three months ended April 2, 2023 and April 3, 2022 net losses from remeasurement of monetary assets and liabilities denominated in foreign currencies were $0.4 million, and $4.3 million, respectively.

See Note G: “Debt” regarding derivatives related to the convertible senior notes.

G. DEBT

Convertible Senior Notes

On December 12, 2016, Teradyne completed a private offering of $460.0 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023 and received net proceeds, after issuance costs, of approximately $450.8 million, $33.0 million of which was used to pay the net cost of the convertible note hedge transactions and $50.1 million of which was used to repurchase 2.0 million shares of Teradyne’s common stock under its existing stock repurchase program from purchasers of the Notes in privately negotiated transactions effected through one of the initial purchasers or its affiliates conducted concurrently with the pricing of the Note offering. The Notes will mature on December 15, 2023, unless earlier repurchased or converted. The Notes bear interest at a rate of 1.25% per year payable semiannually in arrears on June 15 and December 15 of each year. The Notes will be convertible at the option of the noteholders at any time prior to the close of business on the business day immediately preceding September 15, 2023, only under the following circumstances: (1) during any calendar quarter beginning after March 31, 2017 (and only during such calendar quarter), if the closing sale price of Teradyne’s common stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of the Teradyne’s common stock and the conversion rate on each such trading day; and (3) upon the occurrence of specified corporate events. On or after September 15, 2023, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert their Notes at any time, regardless of the foregoing circumstances. Teradyne may satisfy its future conversion obligation by paying cash for the principal amount of the Notes and paying or delivering cash, shares of its common stock or a combination of cash and shares of its common stock, at Teradyne’s election for the amount in excess of principal. On November 4, 2021, Teradyne made an irrevocable election under the Indenture to require the principal portion of the remaining Notes to be settled in cash. As of April 2, 2023, the conversion price was approximately $31.44 per share of Teradyne’s common stock. The conversion rate is subject to adjustment under certain circumstances. As of May 5, 2023, one hundred and thirty debt holders had exercised the option to convert $427.2 million worth of notes.

Concurrent with the offering of the Notes, Teradyne entered into convertible note hedge transactions (the “Note Hedge Transactions”) with the initial purchasers or their affiliates (the “Option Counterparties”). The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, the number of shares of the common stock that underlie the Notes, with a strike price equal to the conversion price of the Notes of $31.44.

Separately and concurrent with the pricing of the Notes, Teradyne entered into warrant transactions with the Option Counterparties (the “Warrant Transactions”) in which it sold net-share-settled (or, at its election subject to certain conditions, cash-settled) warrants to the Option Counterparties. The Warrant Transactions currently cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of common stock. As of April 2, 2023, the strike price of the warrants was approximately $39.46 per share. The strike price is subject to adjustment under certain circumstances. The Warrant Transactions could have a dilutive effect to Teradyne’s common stock to the extent that the market price per share of Teradyne’s common stock, as measured under the terms of the Warrant Transactions, exceeds the applicable strike price of the warrants.

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The Note Hedge Transactions are expected to reduce the potential dilution to Teradyne’s common stock upon any conversion of the Notes. However, the Warrant Transactions could separately have a dilutive effect to the extent that the market value per share of Teradyne’s common stock exceeds the applicable strike price of the warrant. The net cost of the Note Hedge Transactions, after being partially offset by the proceeds from the sale of the warrants, was approximately $33.0 million.

In connection with establishing their initial hedge of these convertible note hedge and warrant transactions, the Option Counterparties have entered into various derivative transactions with respect to Teradyne’s common stock and/or purchased shares of Teradyne’s common stock or other securities, including the Notes, concurrent with, or shortly after, the pricing of the Notes. In addition, the Option Counterparties may modify their hedge positions by entering into or unwinding various derivative transactions with respect to Teradyne’s common stock or by selling Teradyne’s common stock or other securities, including the Notes, in secondary market transactions (and may do so during any observation period related to the conversion of the Notes). These activities could adversely affect the value of Teradyne’s common stock and the Notes.

Originally, Teradyne allocated $100.8 million of the $460.0 million principal amount of the Notes to the equity component, which represented a discount to the debt and was amortized to interest expense using the effective interest method through December 2023. Effective January 1, 2022, Teradyne adopted ASC 2020-06 using the modified retrospective method of transition and accounts for the debt as a single liability measured at its amortized cost. As a result of the adoption, Teradyne recorded an increase of $1.4 million to current debt for unsettled shares, an increase of $1.8 million to deferred tax assets, an increase of $6.6 million to long-term debt for unamortized debt discount, and an increase to retained earnings of $94.6 million for the reclassification of the equity component. Mezzanine equity representing unsettled shares value was reduced to zero and additional paid-in capital was reduced by $100.8 million.

Debt issuance fees at April 2, 2023, have been fully amortized to interest expense using the effective interest method over the seven-year term of the Notes.

The tables below represent the key components of Teradyne’s convertible senior notes:

	April 2, 2023		December 31, 2022
	(in thousands)
Debt principal	$	35,109	$	50,228
Unamortized debt issuance fees		—		113
Net carrying amount of convertible debt	$	35,109	$	50,115

Teradyne’s convertible senior notes were reported as current debt at April 2, 2023 and December 31, 2022.

The interest expense on Teradyne’s convertible senior notes for the three months ended April 2, 2023 and April 3, 2022 was as follows:

	For the Three Months Ended
	April 2, 2023		April 3, 2022
	(in thousands)
Contractual interest expense on the coupon	$	138	$	311
Amortization of the issue fees recognized as interest expense		113		66
Total interest expense on the convertible debt	$	251	$	377

As of April 2, 2023, the conversion price was approximately $31.44 per share and the if converted value of the notes was $120.0 million.

Additional conversions of approximately $2.3 million of debt principal will occur in the second quarter of 2023.

Teradyne expects to make principal interest payments of $0.4 million in the next 12 months.

Revolving Credit Facility

On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provided for a three-year, senior secured revolving credit facility of $400.0 million (the “Credit Facility”).

15

On December 10, 2021, the Credit Agreement was amended to extend the maturity date of the Credit Facility to December 10, 2026. On October 5, 2022, the Credit Agreement was amended to increase the amount of the Credit Facility to $750.0 million from $400.0 million.

The Credit Agreement provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders the available incremental amount under the Credit Facility, not to exceed the greater of $200.0 million or 15% of consolidated EBIDTA. The interest rate applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.00% to 0.75% per annum or SOFR plus a margin ranging from 1.10% to 1.85% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.15% to 0.25% per annum, based on the then applicable consolidated leverage ratio.

Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary SOFR breakage costs.

The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio.

The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65% of the capital stock of certain foreign subsidiaries.

As of May 5, 2023, the Credit Agreement was undrawn and Teradyne was in compliance with all covenants under the Credit Agreement.

H. PREPAYMENTS

Prepayments consist of the following:

	April 2, 2023		December 31, 2022
	(in thousands)
Contract manufacturer and supplier prepayments	$	494,849	$	491,105
Prepaid taxes		22,677		18,625
Prepaid maintenance and other services		16,591		14,545
Other prepayments		14,997		8,687
Total prepayments	$	549,114	$	532,962

I. PRODUCT WARRANTY

Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	14,181		$	24,577
Accruals for warranties issued during the period		4,117			4,100
Accruals related to pre-existing warranties		(405	)		(2,758	)
Settlements made during the period		(4,992	)		(5,814	)
Balance at end of period	$	12,901		$	20,105

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When Teradyne receives revenue for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	56,180		$	64,168
Deferral of new extended warranty revenue		4,413			11,774
Recognition of extended warranty deferred revenue		(11,250	)		(10,216	)
Balance at end of period	$	49,343		$	65,726

J. STOCK-BASED COMPENSATION

On February 1, 2023 (the” Retirement Date”), Mark E. Jagiela retired as Chief Executive Officer of Teradyne and a member of Teradyne’s Board of Directors, and Teradyne entered into an agreement (the “Retirement Agreement”) with Mr. Jagiela. Under the Retirement Agreement, Mr. Jagiela’s unvested time-based restricted stock units and stock options granted prior to his Retirement Date were modified to allow continued vesting; and any vested options or options that vest during that period may be exercised for the remainder of the applicable option term. During the three months ended April 2, 2023, Teradyne recorded a stock based compensation expense of $5.9 million related to the Retirement Agreement.

Under Teradyne’s stock compensation plans, Teradyne grants time-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”).

Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years. Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100% of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to time-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse.

Performance-based restricted stock units (“PRSUs”) granted to Teradyne’s executive officers may have a performance metric based on relative total shareholder return (“TSR”). Teradyne’s three-year TSR performance is measured against the New York Stock Exchange (“NYSE”) Composite Index. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized regardless of the eventual number of units that are earned based upon the market condition, provided the executive officer remains an employee at the end of the three-year period. Compensation expense is reversed if at any time during the three-year service period the executive officer is no longer an employee, subject to the retirement and termination eligibility provisions noted below.

PRSUs granted to Teradyne’s executive officers may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense; and other non-recurring gains and charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the executive officer remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below.

If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will

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vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the executive officer is no longer an employee at the end of the three-year period. Stock options to purchase Teradyne’s common stock at 100% of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.5 million and 0.4 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $102.36 and $111.31, respectively.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of PBIT PRSUs with a grant date fair value of $102.23 and $110.84, respectively.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of TSR PRSUs, with a grant date fair value of $137.64 and $101.06, respectively. The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Risk-free interest rate		3.9	%		1.4	%
Teradyne volatility-historical		50.2	%		47.1	%
NYSE Composite Index volatility-historical		24.8	%		22.7	%
Dividend yield		0.4	%		0.4	%

Expected volatility was based on the historical volatility of Teradyne’s stock and the NYSE Composite Index over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $103.44 for the 2023 grant and an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $112.12 for the 2022 grant.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of service-based stock options to executive officers at a weighted average grant date fair value of $40.90 and $39.01, respectively.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Expected life (years)		4.0			4.0
Risk-free interest rate		3.7	%		1.6	%
Volatility-historical		46.7	%		43.7	%
Dividend yield		0.4	%		0.4	%

Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $103.44 for the 2023 grant and an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $112.12 for the 2022 grant.

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K. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Changes in accumulated other comprehensive income (loss), which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized (Losses) Gains on Marketable Securities			Unrealized (Losses) Gains on Cash Flow Hedges			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended April 2, 2023
Balance at December 31, 2022, net of tax of $0, $(2,308), $(708), $(1,130), respectively	$	(39,849	)	$	(8,661	)	$	(2,517	)	$	1,159		$	(49,868	)
Other comprehensive gain before reclassifications, net of tax of $0, $503, $167, $0, respectively		9,309			2,294			596			—			12,199
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $2, $338, $0, respectively		—			5			1,200			(2	)		1,203
Net current period other comprehensive gain (loss), net of tax of $0, $505, $505 $0, respectively		9,309			2,299			1,796			(2	)		13,402
Balance at April 2, 2023, net of tax of $0, $(1,803), $(203), $(1,130) respectively	$	(30,540	)	$	(6,362	)	$	(721	)	$	1,157		$	(36,466	)
Three Months Ended April 3, 2022
Balance at December 31, 2021, net of tax of $0, $1,055, $0, $(1,128), respectively	$	(10,818	)	$	3,704		$	—		$	1,166		$	(5,948	)
Other comprehensive loss before reclassifications, net of tax of $0, $(1,333), $0, $0, respectively		(8,076	)		(5,388	)		—			—			(13,464	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(18), $0, $0, respectively		—			(65	)		—			(2	)		(67	)
Net current period other comprehensive loss, net of tax of $0, $(1,351), $0, $0, respectively		(8,076	)		(5,453	)		—			(2	)		(13,531	)
Balance at April 3, 2022, net of tax of $0, $(296), $0, $(1,128), respectively	$	(18,894	)	$	(1,749	)	$	—		$	1,164		$	(19,479	)

Reclassifications out of accumulated other comprehensive income (loss) to the statement of operations for the three months ended April 2, 2023 and April 3, 2022, were as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	For the Three Months Ended					Affected Line Item in the Statements of Operations
	April 2,			April 3,
	2023			2022
	(in thousands)
Available-for-sale marketable securities:
Unrealized (losses) gains, net of tax of $(2) and $18, respectively	$	(5	)	$	65		Other (income) expense, net
Cash flow hedges:
Unrealized losses, net of tax of $(338) and $0, respectively		(1,200	)		—		Revenue
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0 and $0, respectively		2			2		(a)
Total reclassifications, net of tax of $(340) and $18, respectively	$	(1,203	)	$	67		Net income

(a) The amortization of prior service credit is included in the computation of net periodic postretirement benefit cost. See Note O: “Retirement Plans.”

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L. GOODWILL AND ACQUIRED INTANGIBLE ASSETS

Goodwill

Teradyne performs its annual goodwill impairment test as required under the provisions of ASC 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless interim indicators of impairment exist. In the three months ended April 2, 2023, there were no interim indicators of impairment. Goodwill is considered impaired when the net book value of a reporting unit exceeds its estimated fair value.

The changes in the carrying amount of goodwill by reportable segments for the three months ended April 2, 2023, were as follows:

	Robotics		Wireless Test			Semiconductor Test			System Test			Total
	(in thousands)
Balance at December 31, 2022
Goodwill	$	383,166	$	361,819		$	262,077		$	158,699		$	1,165,761
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
		383,166		7,976			1,537			10,516			403,195
Foreign currency translation adjustment		6,609		—			24			—			6,633
Balance at April 2, 2023
Goodwill		389,775		361,819			262,101			158,699			1,172,394
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
	$	389,775	$	7,976		$	1,561		$	10,516		$	409,828

Intangible Assets

Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate.

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance at April 2, 2023
Developed technology	$	270,967	$	(237,269	)	$	(5,560	)	$	28,138
Customer relationships		57,739		(51,756	)		184			6,167
Tradenames and trademarks		59,387		(43,101	)		(1,345	)		14,941
Total intangible assets	$	388,093	$	(332,126	)	$	(6,721	)	$	49,246
Balance, December 31, 2022
Developed technology	$	270,967	$	(234,208	)	$	(5,935	)	$	30,824
Customer relationships		57,739		(51,186	)		172			6,725
Tradenames and trademarks		59,387		(41,930	)		(1,528	)		15,929
Total intangible assets	$	388,093	$	(327,324	)	$	(7,291	)	$	53,478

Aggregate intangible asset amortization expense for the three months ended April 2, 2023 and April 3, 2022 was $4.8 million and $5.1 million, respectively.

Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:

Year	Amortization Expense
	(in thousands)
2023	$	14,219
2024		18,749
2025		11,320
2026		2,371
2027		1,155
Thereafter		1,432

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M. NET INCOME PER COMMON SHARE

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	83,531	$	161,928
Weighted average common shares-basic		155,904		162,048
Effect of dilutive potential common shares:
Convertible note hedge warrant shares (1)		8,983		10,028
Incremental shares from assumed conversion of convertible notes (2)		914		2,541
Restricted stock units		453		875
Stock options		48		69
Employee stock purchase plan		6		14
Dilutive potential common shares		10,404		13,527
Weighted average common shares-diluted		166,308		175,575
Net income per common share-basic	$	0.54	$	1.00
Net income per common share-diluted	$	0.50	$	0.92

(1) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price, multiplied by the number of warrant shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

(2) Incremental shares from assumed conversion of the convertible notes were calculated using the difference between the average Teradyne stock price for the period and the conversion price, multiplied by the number of convertible notes shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

The computation of diluted net income per common share for the three months ended April 2, 2023 and April 3, 2022 excludes the effect of the potential vesting of 0.5 million and 0.1 million, respectively, of restricted stock units because the effect would have been anti-dilutive.

N. RESTRUCTURING AND OTHER

During the three months ended April 2, 2023, Teradyne recorded $2.0 million of severance charges related to headcount reductions of 67 people primarily in Semiconductor Test, Robotics and Corporate.

During the three months ended April 3, 2022, Teradyne recorded a charge of $14.7 million related to the arbitration claim filed against Teradyne and AutoGuide related to an earn-out dispute, which was settled on March 25, 2022 for $26.7 million.

O. RETIREMENT PLANS

ASC 715, “Compensation—Retirement Benefits,” requires an employer with defined benefit plans or other postretirement benefit plans to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plans as defined by ASC 715. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all of its plans.

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets of the U.S. qualified pension plan consist primarily of fixed income and equity securities. In addition, Teradyne has an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act (“ERISA”) and the Internal Revenue Code (the “IRC”), as well as unfunded qualified foreign plans.

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In the three months ended April 2, 2023 and April 3, 2022, Teradyne contributed $0.8 million and $0.8 million, respectively, to the U.S. supplemental executive defined benefit pension plan, and $0.2 million and $0.3 million, respectively, to certain qualified pension plans for non-U.S. subsidiaries.

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	April 2, 2023						April 3, 2022
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	272		$	109		$	397		$	206
Interest cost		1,711			262			1,222			118
Expected return on plan assets		(1,285	)		(9	)		(732	)		(20	)
Total net periodic pension cost	$	698		$	362		$	887		$	304

Postretirement Benefit Plan

In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits and the existing benefit obligation relates primarily to those employees.

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Service cost	$	9		$	17
Interest cost		61			44
Amortization of prior service credit		(2	)		(2	)
Total net periodic postretirement benefit cost	$	68		$	59

P. COMMITMENTS AND CONTINGENCIES

Purchase Commitments

As of April 2, 2023, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $589.7 million, of which $530.7 million is for less than one year.

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.

On March 8, 2021, Industrial Automation LLC, sellers of AutoGuide, submitted a demand for arbitration against Teradyne and AutoGuide in Wilmington, Delaware alleging that Teradyne and AutoGuide breached certain provisions of the Membership Interests Purchase Agreement (the “Purchase Agreement”), dated as of October 18, 2019, among Industrial Automation LLC, Teradyne and AutoGuide. The arbitration demand sought full acceleration of the maximum earn-out amount payable under the Purchase Agreement, or $106.9 million, for the alleged breach of the earn-out provisions of the Purchase Agreement. On March 25, 2022, the arbitration claim was settled for $26.7 million. As a result, Teradyne has no remaining earn-out obligations.

Guarantees and Indemnification Obligations

Teradyne provides indemnification, to the extent permitted by law, to its officers, directors, employees and agents for liabilities arising from certain events or occurrences, while the officer, director, employee, or agent, is or was serving, at Teradyne’s request in

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such capacity. Teradyne may enter into indemnification agreements with certain of its officers and directors. With respect to acquisitions, Teradyne provides indemnifications to or assumes indemnification obligations for the current and former directors, officers and employees of the acquired companies in accordance with the acquired companies’ by-laws and charter. As a matter of practice, Teradyne has maintained directors’ and officers’ liability insurance coverage including coverage for directors and officers of acquired companies.

Teradyne enters into agreements in the ordinary course of business with customers, resellers, distributors, integrators and suppliers. Most of these agreements require Teradyne to defend and/or indemnify the other party against intellectual property infringement claims brought by a third party with respect to Teradyne’s products. From time to time, Teradyne also indemnifies customers and business partners for damages, losses and liabilities they may suffer or incur relating to personal injury, personal property damage, product liability, breach of confidentiality obligations and environmental claims relating to the use of Teradyne’s products and services or resulting from the acts or omissions of Teradyne, its employees, authorized agents or subcontractors. On occasion, Teradyne has also provided guarantees to customers regarding the delivery and performance of its products in addition to the warranty described below.

As a matter of ordinary course of business, Teradyne warrants that its products will substantially perform in accordance with its standard published specifications in effect at the time of delivery. Most warranties have a one-year duration commencing from installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based upon historical experience. When Teradyne receives revenue for extended warranties beyond the standard duration, the revenue is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. As of April 2, 2023 and December 31, 2022, Teradyne had a product warranty accrual of $12.9 million and $14.2 million, respectively, included in other accrued liabilities and revenue deferrals related to extended warranties of $49.3 million and $56.2 million, respectively, included in short and long-term deferred revenue and customer advances.

In addition, in the ordinary course of business, Teradyne provides minimum purchase guarantees to certain vendors to ensure continuity of supply against the market demand. Although some of these guarantees provide penalties for cancellations and/or modifications to the purchase commitments as the market demand decreases, most of the guarantees do not. Therefore, as the market demand decreases, Teradyne re-evaluates these guarantees and determines what charges, if any, should be recorded.

With respect to its agreements covering product, business or entity divestitures and acquisitions, Teradyne provides certain representations, warranties and covenants to purchasers and agrees to indemnify and hold such purchasers harmless against breaches of such representations, warranties and covenants. Many of the indemnification claims have a definite expiration date while some remain in force indefinitely. With respect to its acquisitions, Teradyne may, from time to time, assume the liability for certain events or occurrences that took place prior to the date of acquisition.

As a matter of ordinary course of business, Teradyne occasionally guarantees certain indebtedness obligations of its subsidiary companies, limited to the borrowings from financial institutions, purchase commitments to certain vendors and lease commitments to landlords.

Based on historical experience and information known as of April 2, 2023 and December 31, 2022, except for product warranty, Teradyne has not recorded any liabilities for these guarantees and obligations because the amount would be immaterial.

Q. INCOME TAXES

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
US statutory federal tax rate		21.0	%		21.0	%
Non-deductible officers’ compensation		0.9			1.1
Discrete benefit related to equity compensation		(3.3	)		(6.6	)
International provisions of the U.S. Tax Cuts and Jobs Act of 2017		(3.2	)		(1.3	)
Tax credits		(2.5	)		(1.6	)
Foreign taxes		(0.6	)		(3.4	)
Other, net		1.7			1.0
Effective tax rate		14.0	%		10.2	%

On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of April 2, 2023, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the

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condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets.

As of April 2, 2023 and December 31, 2022, Teradyne had $15.7 million and $15.6 million, respectively, of reserves for uncertain tax positions. The $0.1 million net increase in reserves for uncertain tax positions is related to U.S. federal research and development credits generated in the current year.

As of April 2, 2023, Teradyne estimates that it is reasonably possible that the balance of unrecognized tax benefits may decrease approximately $0.1 million in the next twelve months because of a lapse of statutes of limitation. The estimated decrease relates to U.S. state research and development credits.

Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of April 2, 2023 and December 31, 2022, $0.4 million and $0.4 million, respectively, of interest and penalties were accrued for uncertain tax positions. For the three months ended April 2, 2023 and April 3, 2022, expense of $0.1 million and $0.1 million, respectively, was recorded for interest and penalties related to income tax items.

Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings due to the tax holiday for the three months ended April 2, 2023 was $0.2 million, or $0.0 per diluted share. The tax savings due to the tax holiday for the three months ended April 3, 2022 was $3.5 million, or $0.02 per diluted share. In November 2020, Teradyne entered into an agreement with the Singapore Economic Development Board which extended our Singapore tax holiday under substantially similar terms to the agreement which expired on December 31, 2020. The new tax holiday is scheduled to expire on December 31, 2025.

On August 16, 2022, the Inflation Reduction Act of 2022 (“IRA”) was signed into law. The IRA introduced a 15% alternative minimum tax based on the financial statement income of certain large corporations (“CAMT”), effective January 1, 2023. Teradyne currently does not expect the CAMT to have a material impact on its financial results.

R. SEGMENT INFORMATION

Teradyne has four reportable segments (Semiconductor Test, System Test, Wireless Test and Robotics). Each of the reportable segments represents an individual operating segment.

The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The System Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace instrumentation test, storage and system level test, and circuit-board test. The Wireless Test segment includes operations related to the design, manufacturing and marketing of wireless test products and services. The Robotics segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms, autonomous mobile robots and advanced robotic control software. Each operating segment has a segment manager who is accountable to and maintains regular contact with Teradyne’s chief operating decision maker (Teradyne’s chief executive officer) to discuss operating activities, financial results, forecasts and plans for the segment.

Teradyne evaluates performance based on several factors, of which the primary financial measure is business segment income (loss) before income taxes. The accounting policies of the business segments are the same as those described in Note B: “Accounting Policies” in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022.

Segment information for the three months ended April 2, 2023 and April 3, 2022 is as follows:

	Semiconductor Test		System Test		Robotics			Wireless Test		Corporate and Eliminations			Consolidated
	(in thousands)
Three Months Ended April 2, 2023
Revenues	$	415,009	$	74,631	$	89,214		$	38,675	$	—		$	617,529
Income (loss) before income taxes (1)(2)		96,185		15,275		(18,490	)		9,352		(5,238	)		97,084
Total assets (3)		1,386,851		173,669		676,092			87,875		1,058,920			3,383,407
Three Months Ended April 3, 2022
Revenues	$	482,341	$	118,668	$	103,189		$	51,518	$	(346	)	$	755,370
Income (loss) before income taxes (1)(2)		149,705		41,322		(5,098	)		18,619		(24,189	)		180,359
Total assets (3)		1,296,070		187,283		675,560			113,821		1,336,420			3,609,154

(1) Included in Corporate and Eliminations are: interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

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(2) Included in income (loss) before taxes are charges related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,768	$	—
Restructuring and other—employee severance		794		—
System Test:
Cost of revenues—inventory charge	$	675		—
Robotics:
Cost of revenues—inventory charge	$	782	$	—
Wireless:
Cost of revenues—inventory charge	$	—	$	877
Corporate and Other:
Selling and administrative - equity modification charge	$	5,889	$	—
Restructuring and other—employee severance		659		—
Restructuring and other—legal settlement charge		—		14,700

S. SHAREHOLDERS’ EQUITY

Stock Repurchase Program

In January 2023, Teradyne’s Board of Directors cancelled its January 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. Teradyne intends to repurchase up to $500.0 million of its common stock in 2023 based on market conditions.

During the three months ended April 2, 2023, Teradyne repurchased 0.9 million shares of common stock for a total cost of $93.7 million at an average price of $104.88 per share. As of January 1, 2023, share repurchases in excess of issuances are subject to a 1% excise tax, which is included as part of the cost basis of the shares acquired.

During the three months ended April 3, 2022, Teradyne repurchased 1.8 million shares of common stock for $201.5 million at an average price of $115.12 per share.

The total cost of shares acquired includes commissions and, starting in 2023, related excise tax, and is recorded as a reduction to retained earnings.

Dividend

Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors.

In January 2023 and January 2022, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.11 per share. Dividend payments for the three months ended April 2, 2023 and April 3, 2022 were $17.2 million and $17.9 million, respectively.

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

Statements in this Quarterly Report on Form 10-Q which are not historical facts, so called “forward-looking statements,” are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in our filings with the Securities and Exchange Commission. See also Part II, Item 1A of this Quarterly Report on Form 10-Q and Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s analysis only as of the date hereof. We assume no obligation to update these forward-looking statements to reflect actual results or changes in factors or assumptions affecting forward-looking statements, except as may be required by law.

Overview

We are a leading global supplier of automated test equipment and robotics solutions. We design, develop, manufacture and sell automatic test systems and robotics products. Our automatic test systems are used to test semiconductors, wireless products, data storage and complex electronics systems in many industries including the consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Our robotics products include collaborative robotic arms and autonomous mobile robots (“AMRs”) used by global manufacturing, logistics and industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing and logistics costs. Our automatic test equipment and robotics products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• storage and system level test (“Storage Test”) systems, defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

• wireless test (“Wireless Test”) systems; and

• robotics (“Robotics”) products.

The market for our test products is concentrated with a limited number of significant customers accounting for a substantial portion of the purchases of test equipment. A few customers drive significant demand for our test products both through direct sales and sales to the customers’ supply partners. We expect that sales of our test products will continue to be concentrated with a limited number of significant customers for the foreseeable future.

In the first quarter of 2023, the demand in the mobility and compute segments of our Semiconductor Test business was lower due to end market slowdown in these segments as well as a slower technology transition in one of our largest end-markets. While the depth of the slowdown and the timing of the recovery are uncertain, we expect the ramp of 3 nanometer process technology followed by gate-all-around process technology, increasing multichip packaging, additional device complexity and unit growth will drive additional demand for test over our four year forecast period.

Our Robotics segment consists of Universal Robots A/S (“UR”), a leading supplier of collaborative robotic arms and Mobile Industrial Robots A/S (“MiR”), a leading maker of AMRs for industrial automation. The market for our Robotics segment products is dependent on the adoption of new automation technologies by large manufacturers as well as small and medium enterprises (“SMEs”) throughout the world. We expect Robotics sales channel expansion combined with new products to drive growth in the second half of 2023.

In the first quarter of 2023 we met customer demand, in part, through faster than expected recoveries from supply chain constraints. Both our test and robotics businesses may still be influenced by supply constraints during the remainder of 2023, which could impact our revenue and costs. Our second quarter 2023 forecast excludes approximately $25 million of revenue, primarily in our test businesses, due to these continued supply chain constraints. In the first quarter of 2023, inflation had minimal effects on our results.

Our financial statements are denominated in U.S. dollars. While the majority of our revenues are in U.S. dollars, approximately 70 percent of our Robotics revenue is denominated in foreign currencies. In 2022, the strengthening of the U.S. dollar was a factor in lower than forecasted revenues in our Robotics segment. Continued strengthening of the U.S. dollar would negatively affect Robotics revenue growth in 2023.

Our corporate strategy continues to focus on profitably gaining market share in our test businesses through the introduction of differentiated products that target expanding segments and accelerating growth through continued investment in our Robotics businesses. We plan to execute on our strategy while balancing capital allocations between returning capital to our shareholders through stock repurchases and dividends and using capital for opportunistic acquisitions.

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Impact of the COVID-19 Pandemic on our Business

The novel coronavirus (COVID-19) pandemic resulted in government authorities implementing numerous measures in an effort to contain the spread of the virus, such as travel bans and restrictions, limitations on gatherings or social distancing requirements, quarantines, shelter-in-place orders, vaccination and testing mandates, and business limitations and shutdowns. These measures impacted our day-to-day operations and disrupted our business, workforce and operations, as well as the operations of our customers, contract manufacturers and suppliers. In the first quarter of 2023 the COVID-19 pandemic had significantly less impact on our business than in prior quarters since the start of the pandemic in 2020. However, we are unable to accurately predict the future impact of COVID-19, which will depend on future developments that are highly uncertain and cannot be predicted with accuracy, including, but not limited to, any new surges or new strains or variants of the virus in areas where we do business.

Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. We are not aware of any specific event or circumstance that would require an update to our estimates or judgments or a revision of the carrying value of our assets or liabilities as of May 5, 2023, the date of issuance of this Quarterly Report on Form 10-Q.

We believe the COVID-19 pandemic and the numerous measures implemented by authorities in response, adversely impacted our results of operations, including by increasing costs, but we cannot accurately estimate the amount of the impact to our financial results. In addition, the pandemic disrupted our contract manufacturers and suppliers, and resulted in supply constraints and in short-term cost increases to meet customer demand.

Supply Chain Constraints and Inflationary Pressures

The global supply shortage of electrical components, including semiconductor chips, continued to impact our supply chain in the first quarter of 2023. As a result, we experienced, and expect to continue to experience, increases in our lead times and costs for certain components for certain of our products. In addition, while not material, inflationary pressures contributed to increased costs for product components and wage inflation, impacting our cost of products, gross margin and profit for the quarter. Our supply chain team, and our suppliers, continue to manage numerous supply, production, and logistics obstacles. While not material through the first quarter of 2023, in an effort to mitigate these risks, in some cases, we have incurred higher costs due to investment in supply chain resiliency and to secure available inventory or have extended or placed non-cancellable purchase commitments with semiconductor suppliers, which introduces inventory risk if our forecasts and assumptions prove inaccurate. We have also sourced components from additional suppliers and multi-sourced and pre-ordered components and finished goods inventory in some cases in an effort to reduce the impact of the adverse supply chain conditions we have experienced. There is no assurance that these efforts will be successful. Our second quarter 2023 forecast excludes approximately $25 million of revenue, primarily in our test businesses, due to these continued supply chain constraints.

See Part II—Item 1A, “Risk Factors,” included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022 for our risk factors regarding risks associated with both the COVID-19 pandemic and international conflicts.

Critical Accounting Policies and Estimates

We have identified the policies which are critical to understanding our business and our results of operations. There have been no significant changes during the three months ended April 2, 2023 to the items disclosed as our critical accounting policies and estimates in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, except as noted below.

Critical accounting estimates are complex and may require significant judgment by management. Changes to the underlying assumptions may have a material impact on our financial condition and results of operations. These estimates may change, as new events occur and additional information is obtained. Actual results could differ significantly from these estimates under different assumptions or conditions.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Actual results may differ significantly from these estimates under different assumptions or conditions.

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SELECTED RELATIONSHIPS WITHIN THE CONDENSED CONSOLIDATED

STATEMENTS OF OPERATIONS

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
Percentage of revenues:
Revenues:
Products		77	%		83	%
Services		23			17
Total revenues		100			100
Cost of revenues:
Cost of products		32			32
Cost of services		10			8
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		42			40
Gross profit		58			60
Operating expenses:
Selling and administrative		24			19
Engineering and development		17			14
Acquired intangible assets amortization		1			1
Restructuring and other		—			2
Total operating expenses		43			36
Income from operations		15			25
Non-operating (income) expense:
Interest income		(1	)		—
Interest expense		—			—
Other (income) expense, net		—			1
Income before income taxes		16			24
Income tax provision		2			2
Net income		14	%		21	%

Results of Operations

First Quarter 2023 Compared to First Quarter 2022

Revenues

Revenues by our reportable segments were as follows:

	For the Three Months Ended
	April 2,		April 3,		Dollar
	2023		2022		Change
	(in millions)
Semiconductor Test	$	415.0	$	482.3	$	(67.3	)
System Test		74.6		118.7		(44.1	)
Robotics		89.2		103.2		(14.0	)
Wireless Test		38.7		51.5		(12.8	)
	$	617.5	$	755.4	$	(137.9	)

The decrease in Semiconductor Test revenues of $67.3 million, or 14.0%, was driven primarily by lower tester sales in high performance compute processor and mobile applications and lower memory test sales of DRAM memory testers. The decrease in System Test revenues of $44.1 million, or 37.2%, was primarily due to lower sales in Storage Test of system level and hard disk drive testers and lower sales in Defense/Aerospace. The decrease in Robotics revenues of $14.0 million, or 13.6%, was driven primarily by lower demand for collaborative robotic arms and autonomous mobile robots. The decrease in Wireless Test revenues of $12.8 million, or 24.9%, was primarily due to a decrease in connectivity test products.

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Revenues by country as a percentage of total revenues were as follows (1):

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Taiwan		18	%		18	%
United States		18			15
Korea		12			13
Europe		12			10
China		10			19
Japan		9			6
Singapore		8			4
Philippines		5			2
Malaysia		3			5
Thailand		3			5
Rest of World		2			3
		100	%		100	%

(1) Revenues attributable to a country are based on location of customer site.

Gross Profit

Our gross profit was as follows:

	For the Three Months Ended
	April 2, 2023			April 3, 2022			Dollar/Point Change
	(in millions)
Gross profit	$	356.4		$	454.9		$	(98.5	)
Percent of total revenues		57.7	%		60.2	%		(2.5	)

Gross profit as a percent of revenue decreased by 2.5 points, primarily due to lower volume and product mix in Semiconductor Test and higher inventory reserves.

Selling and Administrative

Selling and administrative expenses were as follows:

	For the Three Months Ended
	April 2, 2023			April 3, 2022			Dollar Change
	(in millions)
Selling and administrative	$	151.0		$	140.2		$	10.8
Percent of total revenues		24.4	%		18.6	%

The increase of $10.8 million in selling and administrative expenses was primarily due to the charge of $5.9 million recorded in the three months ended April 2, 2023, related to the modification of Teradyne’s chief executive officer’s outstanding equity awards in connection with his retirement and higher spending in Robotics, Semiconductor Test and System Test, partially offset by lower variable compensation.

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Engineering and Development

Engineering and development expenses were as follows:

	For the Three Months Ended
	April 2, 2023			April 3, 2022			Dollar Change
	(in millions)
Engineering and development	$	105.8		$	108.1		$	(2.3	)
Percent of total revenues		17.1	%		14.3	%

The decrease of $2.3 million in engineering and development expenses was primarily due to lower variable compensation, partially offset by higher spending in Robotics.

Restructuring and Other

During the three months ended April 2, 2023, we recorded $2.0 million of severance charges related to headcount reduction of 67 people primarily in Semiconductor Test, Robotics and Corporate.

During the three months ended April 3, 2022, we recorded a charge of $14.7 million related to the arbitration claim filed against Teradyne and AutoGuide related to an earn-out dispute, which was settled on March 25, 2022 for $26.7 million.

Interest and Other

	For the Three Months Ended
	April 2, 2023			April 3, 2022			Dollar Change
	(in millions)
Interest income	$	(5.3	)	$	(0.7	)	$	(4.6	)
Interest expense		1.0			1.0			—
Other (income) expense, net		0.1			5.2			(5.1	)

Interest income increased by $4.6 million primarily due to higher interest rates in 2023. Other (income) expense, net decreased by $5.1 million primarily due to changes in unrealized gains/losses on equity securities, from a $2.2 million loss in 2022 to a $2.0 million gain in 2023.

Income (Loss) Before Income Taxes

	For the Three Months Ended
	April 2, 2023			April 3, 2022			Dollar Change
	(in millions)
Semiconductor Test	$	96.2		$	149.7		$	(53.5	)
System Test		15.3			41.3			(26.0	)
Wireless Test		9.4			18.6			(9.2	)
Robotics		(18.5	)		(5.1	)		(13.4	)
Corporate and Other (1)		(5.2	)		(24.2	)		19.0
	$	97.1		$	180.4		$	(83.3	)

(1) Included in Corporate and Eliminations are interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation, and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

The decrease in income before income taxes in Semiconductor Test was driven primarily by lower revenues in compute processor and mobile applications and lower memory test sales of DRAM memory testers. The decrease in income before income taxes

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in System Test was primarily due to lower sales in Storage Test of system level and hard disk drive testers. The decrease in income before taxes in Wireless Test was driven primarily by a decrease in sales of connectivity test products. The decrease in income before taxes in Robotics was driven primarily by lower demand for collaborative robotic arms and autonomous mobile robots. The decrease in loss before income taxes in Corporate and Eliminations was primarily due to legal settlement charges in 2022 related to litigation for the earn-out dispute in connection with the AutoGuide acquisition.

Income Taxes

The effective tax rate for the three months ended April 2, 2023 and April 3, 2022 was 14.0% and 10.2%, respectively. The increase in the effective tax rate from the three months ended April 3, 2022 to the three months ended April 2, 2023 was primarily attributable to a projected shift in the geographic distribution of income, which increases the income subject to taxation in higher tax rate jurisdictions relative to lower tax rate jurisdictions and a decrease in benefit from equity compensation. These increases in expense were partially offset by increases in benefit from the international provisions of the U.S. Tax Cuts and Jobs Act of 2017 and tax credits.

Contractual Obligations

There have been no changes outside of the ordinary course of business to our contractual obligations as disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022.

Liquidity and Capital Resources

Our cash, cash equivalents and marketable securities balances decreased by $146.1 million in the three months ended April 2, 2023 to $859.0 million.

Operating activities during the three months ended April 2, 2023 provided cash of $19.3 million. Changes in operating assets and liabilities used cash of $106.5 million due to a $1.9 million increase in operating assets and a $104.7 million decrease in operating liabilities.

The increase in operating assets was primarily due to a $23.7 million increase in inventories, a $15.4 million increase in prepayments and other assets due to prepayments to our contract manufacturers, partially offset by a $37.2 million decrease in accounts receivable.

The decrease in operating liabilities was due to a $93.1 million decrease in accrued employee compensation, a $32.7 million decrease in deferred revenue and customer advance payments, and $1.2 million of retirement plan contributions, partially offset by a $12.5 million increase in income taxes, a $9.6 million increase in other accrued liabilities, and a $0.3 million increase in accounts payable.

Investing activities during the three months ended April 2, 2023 used cash of $94.9 million due to $69.3 million used for purchases of marketable securities, and $41.4 million used for purchases of property, plant and equipment, partially offset by $7.9 million and $7.4 million in proceeds from sales and maturities of marketable securities, respectively, and $0.5 million in proceeds from the cancellation of Teradyne owned life insurance policies related to the cash surrender value.

Financing activities during the three months ended April 2, 2023 used cash of $129.5 million due to $93.3 million used for the repurchase of 0.9 million shares of common stock at an average price of $104.88 per share, $19.9 million used for payment related to net settlements of employee stock compensation awards, $17.2 million used for dividend payments, and $15.2 million used for payments of convertible debt principal, partially offset by $16.0 million from the issuance of common stock under employee stock purchase and stock option plans.

Operating activities during the three months ended April 3, 2022 provided cash of $7.5 million. Changes in operating assets and liabilities used cash of $210.2 million. This was due to an $83.6 million increase in operating assets and a $126.6 million decrease in operating liabilities.

The increase in operating assets was due to a $74.3 million increase in prepayments and other assets due to prepayments to our contract manufacturers, a $9.5 million increase in inventories, partially offset by a $0.2 million decrease in accounts receivable.

The decrease in operating liabilities was due to a $114.0 million decrease in accrued employee compensation, a $13.8 million decrease in other accrued liabilities, a $7.6 million decrease in income taxes, and $1.3 million of retirement plan contributions, partially offset by a $6.7 million increase in deferred revenue and customer advance payments, and a $3.4 million increase in accounts payable.

Investing activities during the three months ended April 3, 2022 used cash of $82.7 million due to $166.0 million used for purchases of marketable securities and $44.0 million used for purchases of property, plant and equipment, partially offset by $96.7 million and $30.6 million in proceeds from maturities and sales of marketable securities, respectively.

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Financing activities during the three months ended April 3, 2022 used cash of $254.6 million due to $201.5 million used for the repurchase of 1.8 million shares of common stock at an average price of $115.12 per share, $31.0 million used for payment related to net settlements of employee stock compensation awards, $20.7 million used for payments of convertible debt principal, $17.9 million used for dividend payments, partially offset by $16.5 million from the issuance of common stock under employee stock purchase and stock option plans.

In January 2022, Teradyne’s Board of Directors declared a 10% increase in the quarterly cash dividend to $0.11 per share. Dividend payments for the three months ended April 3, 2022 were $17.9 million. In January 2021, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.10 per share. Dividend payments for the three months ended April 4, 2021 were $16.7 million.

In January 2023, our Board of Directors cancelled the 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. We intend to repurchase up to $500.0 million of common stock in 2023 subject to market conditions.

During the three months ended April 2, 2023, we repurchased 0.9 million shares of common stock for $93.3 million at an average price of $104.88 per share. During the three months ended April 3, 2022, we repurchased 1.8 million shares of common stock for $201.5 million at an average price of $115.12 per share.

While we declared a quarterly cash dividend and authorized a share repurchase program, we may reduce or eliminate the cash dividend or share repurchase program in the future. Future cash dividends and stock repurchases are subject to the discretion of our Board of Directors, which will consider, among other things, our earnings, capital requirements and financial condition.

On May 1, 2020, we entered into a credit agreement providing a three-year, senior secured revolving credit facility of $400 million. On December 10, 2021, the credit agreement was amended to extend the senior secured revolving credit facility to December 10, 2026. On October 5, 2022, the credit agreement was amended to increase the amount of the credit facility to $750.0 million from $400.0 million. As of May 5, 2023, we have not borrowed any funds under the credit facility.

We believe our cash, cash equivalents and marketable securities balance will be sufficient to pay our quarterly dividend and meet our working capital and expenditure needs for at least the next twelve months. Inflation has not had a significant long-term impact on earnings. At this time, the COVID-19 pandemic has not had an impact on our liquidity, but there is no assurance that continued impacts resulting from the pandemic will not have an adverse effect in the future.

Equity Compensation Plans

In addition to our 1996 Employee Stock Purchase Program as discussed in Note Q: “Stock-Based Compensation” in our 2022 Annual Report on Form 10-K, we have a 2006 Equity and Cash Compensation Incentive Plan (the “2006 Equity Plan”).

The purpose of the 1996 Employee Stock Purchase Plan is to encourage stock ownership by all eligible employees of Teradyne. The purpose of the 2006 Equity Plan is to provide equity ownership and compensation opportunities in Teradyne to our employees, officers and directors. Both plans were approved by our shareholders.

Recently Issued Accounting Pronouncements

For the three months ended April 2, 2023, there were no recently issued accounting pronouncements that had, or are expected to have, a material impact to our consolidated financial statements.

Item 3: Quantitative and Qualitative Disclosures about Market Risks

For “Quantitative and Qualitative Disclosures about Market Risk” affecting Teradyne, see Part 2 Item 7A, “Quantitative and Qualitative Disclosures about Market Risks,” in our Annual Report on Form 10-K filed with the SEC on February 22, 2023. There were no material changes in our exposure to market risk from those set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

In addition to market risks described in our Annual Report on Form 10-K, we have an equity price risk related to the fair value of our convertible senior unsecured notes issued in December 2016. In December 2016, Teradyne issued $460 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023. As of April 2, 2023, $35.1 million of principal remained outstanding and the Notes had a fair value of $119.6 million. The table below provides a sensitivity analysis of hypothetical 10% changes of Teradyne’s stock price as of the end of the first quarter of 2022 and the estimated impact on the fair value of the Notes. The selected scenarios are not predictions of future events, but rather are intended to illustrate the effect such event may have on the fair value of the Notes. The fair value of the Notes is subject to equity price risk due to the convertible feature. The fair value of the Notes will generally increase as Teradyne’s common stock price increases and will generally decrease as the common stock price declines in value. The change in stock price affects the fair value of the Notes, but does not impact Teradyne’s financial position, cash flows or results of operations due to the fixed nature of the debt obligation. Additionally,

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we carry the Notes at face value less unamortized discount on our balance sheet, and we present the fair value for required disclosure purposes only. In connection with the offering of the Notes we also sold warrants to the option counterparties. These transactions have been accounted for as an adjustment to our shareholders’ equity. The convertible note hedge transactions are expected to reduce the potential equity dilution upon conversion of the Notes. The warrants along with any shares issuable upon conversion of the Notes will have a dilutive effect on our earnings per share to the extent that the average market price of our common stock for a given reporting period exceeds the applicable strike price or conversion price of the warrants or Notes, respectively.

Hypothetical Change in Teradyne Stock Price	Fair Value		Estimated change in fair value			Hypothetical percentage increase (decrease) in fair value
10% Increase	$	131,584	$	11,998			10.0	%
No Change		119,586		—			—
10% Decrease		107,588		(11.998	)		(10.0	)

Item 4: Controls and Procedures

As of the end of the period covered by this report, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) or Rule 15d-15(f) promulgated under the Exchange Act. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the three months ended April 2, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1: Legal Proceedings

We are subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.

On March 8, 2021, Industrial Automation LLC submitted a demand for arbitration against Teradyne and AutoGuide in Wilmington, Delaware alleging that Teradyne and AutoGuide breached certain provisions of the Membership Interests Purchase Agreement (the “Purchase Agreement”), dated as of October 18, 2019, among Industrial Automation LLC, Teradyne and AutoGuide. The arbitration demand sought full acceleration of the maximum earn-out amount payable under the Purchase Agreement, or $106.9 million, for the alleged breach of the earn-out provisions of the Purchase Agreement. On March 25, 2022, the arbitration claim was settled for $26.7 million. As a result, Teradyne has no remaining earn-out obligations.

Item 1A: Risk Factors

In addition to other information set forth in this Form 10-Q, including the risk discussed below, you should carefully consider the factors discussed in Part I, “Item 1A: Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022, which could materially affect our business, financial condition or future results. The risk factors described in our Annual Report on Form 10-K remain applicable to our business and many of these risks could be further increased due to the COVID-19 pandemic.

The risks described in our Annual Report on Form 10-K are not the only risks that we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Adverse developments affecting the financial services industry, including events or risks involving liquidity, defaults or non-performance by financial institutions, could have a material adverse effect on our business, financial condition or results of operations.

On March 10, 2023, Silicon Valley Bank (SVB), who is a lender in our revolving credit facility and where we maintain certain accounts and cash deposits, was placed into receivership with the Federal Deposit Insurance Corporation (FDIC), which resulted in all funds held at SVB being temporarily inaccessible by SVB’s customers. As of March 13, 2023, access to our cash and cash equivalents at SVB was fully restored. Although our cash balances at SVB are insignificant and we do not expect further developments at SVB to have a material impact on our cash and cash equivalents, we do hold cash balances in several large financial institutions significantly in excess of FDIC and global insurance limits. If other banks and financial institutions with whom we have banking relationships enter receivership or become insolvent in the future, we may be unable to access, and we may lose, some or all of our existing cash, cash equivalents and investments to the extent those funds are not insured or otherwise protected by the FDIC.

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Item 2: Unregistered Sales of Equity Securities and Use of Proceeds

In January 2023, Teradyne’s Board of Directors cancelled our 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. During the three months ended April 2, 2023, we repurchased 0.9 million shares of common stock for a total cost of $93.7 million at an average price of $104.88 per share. We record share repurchases at cost, which includes broker commissions and related excise taxes. During the three months ended April 3, 2022, we repurchased 1.8 million shares of common stock for $201.5 million at an average price of $115.12 per share.

The following table includes information with respect to repurchases we made of our common stock during the three months ended April 2, 2023 (in thousands except per share price):

Period	Total Number of Shares (or Units) Purchased			Average Price Paid per Share (or Unit)			Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs		Maximum Number (or Approximate Dollar Value) of Shares (or Units) that may Yet Be Purchased Under the Plans or Programs (2)
January 1, 2023 - January 29, 2023		147		$	103.09			—	$	2,000,000
January 30, 2023 – February 26, 2023		414		$	105.18			369	$	1,960,941
February 27, 2023 – April 2, 2023		526		$	104.25			524	$	1,906,292
		1,087	(1)	$	104.44	(1)		893

(1) Includes approximately one hundred ninety-four thousand shares at an average price of $102.42 withheld from employees for the payment of taxes.

(2) As of January 1, 2023, share repurchases net of share issuances are subject to a 1% excise tax under the Inflation Reduction Act. Excise tax incurred is included as part of the cost basis of shares repurchased in the Condensed Consolidated Statements of Convertible Common Shares and Stockholders’ Equity.

We satisfy U.S. federal and state minimum withholding tax obligations due upon the vesting and the conversion of restricted stock units into shares of our common stock, by automatically withholding from the shares being issued, a number of shares with an aggregate fair market value on the date of such vesting and conversion that would satisfy the minimum withholding amount due.

Item 4: Mine Safety Disclosures

Not Applicable

34

Item 6: Exhibits

Exhibit Number	Description
3.1	Amended and Restated By-Laws of Teradyne, Inc. effective March 24, 2023 (filed as Exhibit 3.1 to Teradyne’s Current Report on Form 8-K filed on March 28, 2023)
31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
32.1	Certification of Principal Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
32.2	Certification of Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
101.INS	Inline XBRL Instance Document
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL, and contained in Exhibit 101)

35

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.

TERADYNE, INC.

Registrant

/s/ SANJAY MEHTA

Sanjay Mehta

Vice President,

Chief Financial Officer and Treasurer

(Duly Authorized Officer

and Principal Financial Officer)

May 5, 2023

36

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Gregory S. Smith, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 5, 2023

By:	/s/ GREGORY S. SMITH
	Gregory S. Smith
	Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Sanjay Mehta, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 5, 2023

By:	/s/ SANJAY MEHTA
	Sanjay Mehta
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended April 2, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory S. Smith, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ GREGORY S. SMITH

Gregory S. Smith

Chief Executive Officer

May 5, 2023

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended April 2, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Sanjay Mehta, Chief Financial Officer of the Company, certify pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ SANJAY MEHTA

Sanjay Mehta

Chief Financial Officer

May 5, 2023

XML

Cover Page - shares	3 Months Ended
	Apr. 02, 2023	May 01, 2023
Cover [Abstract]
Amendment Flag	false
Document Type	10-Q
Document Fiscal Year Focus	2023
Entity Central Index Key	0000097210
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Document Period End Date	Apr. 02, 2023
Entity Registrant Name	TERADYNE, INC.
Entity Filer Category	Large Accelerated Filer
Trading Symbol	TER
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Entity File Number	001-06462
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2272148
Entity Address, Address Line One	600 Riverpark Drive
Entity Address, City or Town	North Reading
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01864
City Area Code	978
Local Phone Number	370-2700
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		155,038,743

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 02, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 649,208		$ 854,773
Marketable securities	92,895		39,612
Accounts receivable, less allowance for credit losses of $1,973 and $1,955 at April 2, 2023 and December 31, 2022, respectively	455,334		491,145
Inventories, net	352,058		325,019
Prepayments	549,114		532,962
Other current assets	13,367		14,404
Total current assets	2,111,976		2,257,915
Property, plant and equipment, net	432,381		418,683
Operating lease right-of-use assets, net	74,939		73,734
Marketable securities	116,938		110,777
Deferred tax assets	148,527		142,784
Retirement plans assets	11,650		11,761
Other assets	27,922		28,925
Acquired intangible assets, net	49,246		53,478
Goodwill	409,828		403,195
Total assets	3,383,407	[1]	3,501,252
Current liabilities:
Accounts payable	142,382		139,722
Accrued employees' compensation and withholdings	119,433		212,266
Deferred revenue and customer advances	119,355		148,285
Other accrued liabilities	114,739		112,271
Operating lease liabilities	19,985		18,594
Income taxes payable	77,089		65,010
Current debt	35,109		50,115
Total current liabilities	628,092		746,263
Retirement plans liabilities	121,303		116,005
Long-term deferred revenue and customer advances	41,797		45,131
Long-term other accrued liabilities	16,211		15,981
Deferred tax liabilities	2,325		3,267
Long-term operating lease liabilities	65,082		64,176
Long-term incomes taxes payable	59,135		59,135
Total liabilities	933,945		1,049,958
Commitments and contingencies (Note Q)
SHAREHOLDERS' EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized; 155,445 and 155,759 shares issued and outstanding at April 2, 2023 and December 31, 2022, respectively	19,431		19,470
Additional paid-in capital	1,772,352		1,755,963
Accumulated other comprehensive loss	(36,466)		(49,868)
Retained earnings	694,145		725,729
Total shareholders' equity	2,449,462		2,451,294
Total liabilities and shareholders' equity	$ 3,383,407		$ 3,501,252

[1] Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Accounts receivable, less allowance for doubtful accounts	$ 1,973	$ 1,955
Common stock, par value	$ 0.125	$ 0.125
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares issued	155,445	155,759
Common stock, shares outstanding	155,445	155,759

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Apr. 02, 2023	Apr. 03, 2022
Revenues:
Total revenues	[1]	$ 617,529	$ 755,370
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		261,109	300,437
Gross profit		356,420	454,933
Operating expenses:
Selling and administrative		150,955	140,185
Engineering and development		105,762	108,116
Acquired intangible assets amortization		4,802	5,063
Restructuring and other		2,037	15,714
Total operating expenses		263,556	269,078
Income from operations		92,864	185,855
Non-operating (income) expense:
Interest income		(5,258)	(703)
Interest expense		987	1,012
Other (income) expense, net		51	5,187
Income before income taxes	[2],[3]	97,084	180,359
Income tax provision		13,553	18,431
Net income		$ 83,531	$ 161,928
Net income per common share:
Basic		$ 0.54	$ 1
Diluted		$ 0.5	$ 0.92
Weighted average common shares—basic		155,904	162,048
Weighted average common shares—diluted		166,308	175,575
Product [Member]
Revenues:
Total revenues		$ 473,418	$ 625,875
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		198,665	243,016
Service [Member]
Revenues:
Total revenues		144,111	129,495
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		$ 62,444	$ 57,421

[1] Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

[2] Included in Corporate and Eliminations are: interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

[3] Included in income (loss) before taxes are charges related to restructuring and other, and inventory charges.

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Net income	$ 83,531	$ 161,928
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment, net of tax of $0 and $0, respectively	9,309	(8,076)
Available-for-sale marketable securities:
Unrealized gains (losses) on marketable securities arising during period, net of tax of $503 and $(1,333), respectively	2,294	(5,388)
Less: Reclassification adjustment for losses (gains) included in net income, net of tax of $2 and $(18), respectively	5	(65)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Total	2,299	(5,453)
Cash flow hedges:
Unrealized gains arising during period, net of tax of $167, $0, respectively	596	0
Less: Reclassification adjustment for losses included in net income, net of tax of $338 and $0, respectively	1,200	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent	1,796	0
Defined benefit post-retirement plan:
Amortization of prior service credit, net of tax of $0 and $0, respectively	(2)	(2)
Other comprehensive income (loss)	13,402	(13,531)
Comprehensive income	$ 96,933	$ 148,397

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Foreign currency translation adjustments, tax	$ 0	$ 0
Unrealized gains (losses) on marketable securities arising during period, net of tax	503	(1,333)
Reclassification adjustment for losses (gains) included in net income, net of tax	2	(18)
Amortization of prior service credit, net of tax	0	0
Cash flow hedges Unrealized gains	167	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	$ 338	$ 0

XML

CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE COMMON SHARES AND SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Common Stock Convertible Common Shares	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss) Income	Retained Earnings
Balance at Dec. 31, 2021	$ 2,562,444	$ 20,281		$ 1,811,545	$ (5,948)	$ 736,566
Balance, Shares at Dec. 31, 2021		162,251,000	1,512,000
Net issuance of common stock under stock-based plans	(14,574)	$ 70		(14,644)
Net issuance of common stock under stock-based plans (in shares)		552,000
Stock-based compensation expense	14,204			14,204
Repurchase of common stock	(211,466)	$ (219)				(211,247)
Repurchase of common stock (in shares)		(1,750,000)
Cash dividends	(17,908)					(17,908)
Settlements of convertible notes	(93)	$ 64		(157)
Settlements of convertible notes (in shares)		509,000
Exercise of convertible notes hedge call options	0	$ (64)		64
Exercise of convertible notes hedge call options (in shares)		(509,000)
Cumulative-effect of change in accounting principle related to convertible debt	(6,472)			(99,322)		92,850
Cumulative-effect of change in accounting principle related to convertible debt (in shares)			(1,512,000)
Net income	161,928					161,928
Other comprehensive income/loss	(13,531)				(13,531)
Balance at Apr. 03, 2022	2,474,532	$ 20,132		1,711,690	(19,479)	762,189
Balance, Shares at Apr. 03, 2022		161,053,000	0
Balance at Dec. 31, 2022	2,451,294	$ 19,470		1,755,963	(49,868)	725,729
Balance, Shares at Dec. 31, 2022		155,759,000	0
Net issuance of common stock under stock-based plans	(3,870)	$ 73		(3,943)
Net issuance of common stock under stock-based plans (in shares)		579,000
Stock-based compensation expense	20,332			20,332
Repurchase of common stock	(98,048)	$ (112)				(97,936)
Repurchase of common stock (in shares)		(893,000)
Cash dividends	(17,179)					(17,179)
Settlements of convertible notes	0	$ 41		(41)
Settlements of convertible notes (in shares)		324,000
Exercise of convertible notes hedge call options	0	$ (41)		41
Exercise of convertible notes hedge call options (in shares)		(324,000)
Net income	83,531					83,531
Other comprehensive income/loss	13,402				13,402
Balance at Apr. 02, 2023	$ 2,449,462	$ 19,431		$ 1,772,352	$ (36,466)	$ 694,145
Balance, Shares at Apr. 02, 2023		155,445,000	0

XML

CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE COMMON SHARES AND SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Common Stock, Dividends, Per Share, Cash Paid	$ 0.11	$ 0.11

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Cash flows from operating activities:
Net income	$ 83,531	$ 161,928
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation	22,680	22,503
Stock-based compensation	18,885	12,894
Amortization	4,926	5,233
Deferred taxes	(7,634)	11,288
(Gains) losses on investments	(2,238)	2,001
Provision for excess and obsolete inventory	5,610	1,590
Other	108	177
Changes in operating assets and liabilities
Accounts receivable	37,204	208
Inventories	(23,697)	(9,480)
Prepayments and other assets	(15,380)	(74,305)
Accounts payable and other accrued expenses	(83,208)	(124,382)
Deferred revenue and customer advances	(32,705)	6,747
Retirement plan contributions	(1,234)	(1,329)
Income taxes	12,488	(7,611)
Net cash provided by operating activities	19,336	7,462
Cash flows from investing activities:
Purchases of property, plant and equipment	(41,444)	(43,999)
Purchases of marketable securities	(69,276)	(165,977)
Proceeds from sales of marketable securities	7,929	30,581
Proceeds from maturities of marketable securities	7,468	96,682
Proceeds from life insurance	460	0
Net cash used for investing activities	(94,863)	(82,713)
Cash flows from financing activities:
Issuance of common stock under stock purchase and stock option plans	15,997	16,475
Repurchase of common stock	(93,308)	(201,465)
Payments related to net settlement of employee stock compensation awards	(19,870)	(31,048)
Dividend payments	(17,165)	(17,895)
Payments of convertible debt principal	(15,155)	(20,694)
Net cash used for financing activities	(129,501)	(254,627)
Effects of exchange rate changes on cash and cash equivalents	(537)	2,282
Decrease in cash and cash equivalents	(205,565)	(327,596)
Cash and cash equivalents at beginning of period	854,773	1,122,199
Cash and cash equivalents at end of period	649,208	794,603
Non-cash investing activities:
Capital expenditures incurred but not yet paid:	$ 3,823	$ 2,500

XML

The Company

3 Months Ended

Apr. 02, 2023

The Company

A. THE COMPANY

Teradyne, Inc. (“Teradyne”) is a leading global supplier of automated test equipment and robotics solutions. Teradyne designs, develops, manufactures and sells automatic test systems and robotics products. Teradyne’s automatic test systems are used to test semiconductors, wireless products, data storage and complex electronics systems in many industries including consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradyne’s robotics products include collaborative robotic arms and autonomous mobile robots (“AMRs”) used by global manufacturing, logistics and industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing and logistics costs. Teradyne’s automatic test equipment and robotics products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• storage and system level test (“Storage Test”) systems, defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

• wireless test (“Wireless Test”) systems; and

• robotics (“Robotics”) products.

XML

Accounting Policies

3 Months Ended

Apr. 02, 2023

Accounting Policies

B. ACCOUNTING POLICIES

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts may have been reclassified to conform to the current year presentation. The December 31, 2022 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by United States of America generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 22, 2023, for the year ended December 31, 2022.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent liabilities. On an on-going basis, management evaluates its estimates, including those related to inventories, investments, goodwill, intangible and other long-lived assets, accounts receivable, income taxes, deferred tax assets and liabilities, pensions, warranties, contingent consideration liabilities, and loss contingencies. Management bases its estimates on historical experience and on appropriate and customary assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgements about the carrying values of assets and liabilities that are not readily apparent from other sources. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Management is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change, as new events occur and additional information is obtained. Actual results may differ significantly from these estimates under different assumptions or conditions.

XML

Recently Issued Accounting Pronouncements

3 Months Ended

Apr. 02, 2023

Recently Issued Accounting Pronouncements

C. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

For the three months ended April 2, 2023, there were no recently issued accounting pronouncements that had, or are expected to have, a material impact to Teradyne’s consolidated financial statements.

XML

Revenue

3 Months Ended

Apr. 02, 2023

Revenue from Contract with Customer [Abstract]

Revenue

D. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Robotics
	System on- a-Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		Wireless Test		Corporate and Eliminations			Total
	(in thousands)
For the Three Months Ended April 2, 2023 (1)
Timing of Revenue Recognition
Point in Time	$	273,275	$	61,258	$	56,857	$	70,029	$	15,959	$	35,363	$	—		$	512,741
Over Time		73,559		6,917		17,774		2,008		1,218		3,312		—			104,788
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
Geographical Market
Asia Pacific	$	283,259	$	63,695	$	39,590	$	13,217	$	1,502	$	23,231	$	—		$	424,494
Americas		41,568		2,944		28,980		20,447		11,806		12,846		—			118,591
Europe, Middle East and Africa		22,007		1,536		6,061		38,373		3,869		2,598		—			74,444
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
For the Three Months Ended April 3, 2022 (1)
Timing of Revenue Recognition
Point in Time	$	323,456	$	88,723	$	105,288	$	83,182	$	16,744	$	48,429	$	(346	)	$	665,476
Over Time		63,129		7,033		13,380		2,102		1,161		3,089		—			89,894
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370
Geographical Market
Asia Pacific	$	340,741	$	93,151	$	73,784	$	18,621	$	2,592	$	34,946	$	—		$	563,835
Americas		29,714		2,046		36,608		28,148		8,564		9,687		(346	)		114,421
Europe, Middle East and Africa		16,130		559		8,276		38,515		6,749		6,885		—			77,114
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370

(1) Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

Contract Balances

During the three months ended April 2, 2023 and April 3, 2022, Teradyne recognized $50.7 million and $35.0 million, respectively, that was included within the deferred revenue and customer advances balances at the beginning of the period. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. As of April 2, 2023, Teradyne had $1,240.7 million of unsatisfied performance obligations. Teradyne expects to recognize 88% of the remaining performance obligations in the next 12 months and 12% in 1-3 years.

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	April 2, 2023		December 31, 2022
	(in thousands)
Maintenance, service and training	$	70,609	$	78,089
Extended warranty		49,343		56,180
Customer advances, undelivered elements and other		41,200		59,147
Total deferred revenue and customer advances	$	161,152	$	193,416

Accounts Receivable

During the three months ended April 2, 2023 and April 3, 2022, Teradyne sold certain trade accounts receivables on a non-recourse basis to third-party financial institutions pursuant to factoring agreements. During the three months ended April 2, 2023 and April 3, 2022, total trade accounts receivable sold under the factoring agreements were $34.2 million and $19.4 million, respectively. Factoring fees for the sales of receivables were recorded in interest expense and were not material. Teradyne accounted for these transactions as sales of receivables and presented cash proceeds as cash provided by operating activities in the consolidated statements of cash flows.

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Inventories

3 Months Ended

Apr. 02, 2023

Inventories

E. INVENTORIES 

Inventories, net consisted of the following at April 2, 2023 and December 31, 2022:

	April 2, 2023		December 31, 2022
	(in thousands)
Raw material	$	264,035	$	256,065
Work-in-process		43,987		37,982
Finished goods		44,036		30,972
	$	352,058	$	325,019

Inventory reserves at April 2, 2023 and December 31, 2022 were $138.6 million and $136.8 million, respectively.

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Financial Instruments

3 Months Ended

Apr. 02, 2023

Financial Instruments

F. FINANCIAL INSTRUMENTS

Cash Equivalents

Teradyne considers all highly liquid investments with maturities of three months or less at the date of acquisition to be cash equivalents.

Marketable Securities

Teradyne’s equity and debt mutual funds are classified as Level 1 and available-for-sale debt securities are classified as Level 2. Contingent consideration is classified as Level 3. The vast majority of Level 2 securities are fixed income securities priced by third party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities.

During the three months ended April 2, 2023 and April 3, 2022, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.

Realized gains recorded in the three months ended April 2, 2023 and April 3, 2022 were $0.3 million and $0.4 million, respectively. Realized losses recorded in the three months ended April 2, 2023 and April 3, 2022 were $0.1 million and $0.2 million, respectively. Realized gains and losses are included in other (income) expense, net.

Unrealized gains on equity securities recorded in the three months ended April 2, 2023 were $2.0 million. Unrealized losses on equity securities recorded in the three months ended April 3, 2022 were $2.2 million. Unrealized gains and losses on equity securities are included in other (income) expense, net.

Unrealized gains and losses on available-for-sale debt securities are included in accumulated other comprehensive income (loss) on the balance sheet.

The cost of securities sold is based on average cost.

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of April 2, 2023 and December 31, 2022.

	April 2, 2023
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	244,542	$	—	$	—	$	244,542
Cash equivalents		252,374		152,292		—		404,666
Available-for-sale securities:
U.S. Treasury securities		—		52,168		—		52,168
Corporate debt securities		—		51,369		—		51,369
Commercial paper		—		47,548		—		47,548
U.S. government agency securities		—		7,394		—		7,394
Debt mutual funds		6,800		—		—		6,800
Certificates of deposit and time deposits		—		1,754		—		1,754
Non-U.S. government securities		—		554		—		554
Equity securities:
Mutual funds		42,246		—		—		42,246
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Derivative liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	496,916	$	152,292	$	—	$	649,208
Marketable securities		—		92,895		—		92,895
Long-term marketable securities		49,046		67,892		—		116,938
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Other current liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

	December 31, 2022
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	632,417	$	—	$	—	$	632,417
Cash equivalents		161,767		60,589		—		222,356
Available for sale securities:
Corporate debt securities		—		50,856		—		50,856
U.S. Treasury securities		—		39,649		—		39,649
Commercial paper		—		7,159		—		7,159
Debt mutual funds		6,580		—		—		6,580
U.S. government agency securities		—		6,352		—		6,352
Certificates of deposit and time deposits		—		1,740		—		1,740
Non-U.S. government securities		—		535		—		535
Equity securities:
Mutual funds		37,518		—		—		37,518
Total	$	838,282	$	166,880	$	—	$	1,005,162
Derivative assets		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Derivative liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	794,184	$	60,589	$	—	$	854,773
Marketable securities		—		39,612		—		39,612
Long-term marketable securities		44,098		66,679		—		110,777
Prepayments		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Other current liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

The carrying amounts and fair values of Teradyne’s financial instruments at April 2, 2023 and December 31, 2022 were as follows:

	April 2, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	649,208	$	649,208	$	854,773	$	854,773
Marketable securities		209,833		209,833		150,389		150,389
Derivative assets		—		—		86		86
Liabilities
Derivative liabilities		1,980		1,980		4,215		4,215
Convertible debt		35,109		119,586		50,115		139,007

The fair values of accounts receivable, net and accounts payable approximate the carrying value due to the short-term nature of these instruments.

The following table summarizes the composition of available-for-sale marketable securities at April 2, 2023:

	April 2, 2023
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
U.S. Treasury securities	$	55,615	$	38	$	(3,485	)	$	52,168	$	49,669
Corporate debt securities		56,040		41		(4,712	)		51,369		49,131
Commercial paper		47,225		337		(14	)		47,548		16,845
U.S. government agency securities		7,427		9		(42	)		7,394		4,419
Debt mutual funds		7,130		—		(330	)		6,800		3,312
Certificates of deposit and time deposits		1,754		—		—			1,754		—
Non-U.S. government securities		554		—		—			554		—
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	92,915	$	337	$	(357	)	$	92,895	$	60,438
Long-term marketable securities		82,830		88		(8,226	)		74,692		62,938
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

The following table summarizes the composition of available-for-sale marketable securities at December 31, 2022:

	December 31, 2022
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Corporate debt securities	$	57,006	$	3	$	(6,153	)	$	50,856	$	50,667
U.S. Treasury securities		44,030		—		(4,381	)		39,649		39,649
Commercial paper		7,089		70		—			7,159		—
Debt mutual funds		6,997		—		(417	)		6,580		3,095
U.S. government agency securities		6,442		—		(90	)		6,352		6,352
Certificates of deposit and time deposits		1,740		—		—			1,740		—
Non-U.S. government securities		535		—		—			535		—
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	39,950	$	70	$	(408	)	$	39,612	$	30,713
Long-term marketable securities		83,889		3		(10,633	)		73,259		69,050
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

As of April 2, 2023, the fair market value of investments with unrealized losses less than one year and greater than one year totaled $68.4 million and $55.0 million, respectively. As of December 31, 2022, the fair market value of investments with unrealized losses for less than one year and greater than one year totaled $66.3 million and $33.4 million, respectively.

Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at April 2, 2023 and December 31, 2022 were not other than temporary.

The contractual maturities of investments in available-for-sale securities held at April 2, 2023 were as follows:

	April 2, 2023
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	92,915	$	92,895
Due after 1 year through 5 years		31,721		30,672
Due after 5 years through 10 years		5,022		4,612
Due after 10 years		38,957		32,608
Total	$	168,615	$	160,787

Contractual maturities of investments in available-for-sale securities held at April 2, 2023 exclude debt mutual funds with a fair market value of $6.8 million, as they do not have a contractual maturity date.

Derivatives

Teradyne conducts business in various foreign countries, with certain transactions denominated in local currencies. As a result, Teradyne is exposed to risks relating to changes in foreign currency exchange rates. Teradyne’s foreign currency risk management objective is to minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, and changes in its cash inflows attributable to the forecasted cash flows from certain foreign currency denominated revenues.

To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies.

Teradyne also enters into foreign currency forward and option contracts designated as cash flow hedges to hedge the risk of changes in its cash inflows attributable to changes in foreign currency exchange rates. The cash flow hedges have maturities of less than six months and mature in the period of revenue recognition for certain products and services in backlog and forecasted to be recognized in a future period. Teradyne evaluates cash flow hedges for effectiveness at inception based on the critical terms match method. The hedges are not expected to incur any ineffectiveness however a quarterly qualitative assessment of effectiveness is done to determine if the critical terms match method remains appropriate to use. The change in fair value of the contracts is recorded in accumulated other comprehensive income (loss) and reclassified to earnings at maturity date.

Teradyne does not use derivative financial instruments for speculative purposes.

At April 2, 2023 and December 31, 2022, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:

	April 2, 2023								December 31, 2022
	Buy Position			Sell Position		Net Total			Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(57.7	)	$	—	$	(57.7	)	$	(37.1	)	$	—	$	(37.1	)
Taiwan Dollar		(38.3	)		—		(38.3	)		(29.2	)		—		(29.2	)
Korean Won		(3.1	)		—		(3.1	)		(6.4	)		—		(6.4	)
British Pound Sterling		(1.2	)		—		(1.2	)		(1.2	)		—		(1.2	)
Singapore Dollar		—			35.7		35.7			—			33.5		33.5
Euro		—			24.3		24.3			—			38.4		38.4
Philippine Peso		—			2.5		2.5			—			2.7		2.7
Chinese Yuan		—			1.9		1.9			—			2.2		2.2
Total	$	(100.3	)	$	64.4	$	(35.9	)	$	(73.9	)	$	76.8	$	2.9

The fair value of the outstanding contracts was a loss of $1.1 million and $0.9 million, respectively, at April 2, 2023 and December 31, 2022.

Unrealized gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in other (income) expense, net.

At April 2, 2023 and December 31, 2022, Teradyne had the following cash flow hedge contracts to buy and sell non-U.S. currencies for U.S. dollars with the following notional amounts:

	April 2, 2023							December 31, 2022
	Buy Position			Sell Position		Net Total		Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(13.6	)	$	30.2	$	16.6	$	(23.4	)	$	61.2	$	37.8
Taiwan Dollar		—			—		—		(5.5	)		10.9		5.4
Total	$	(13.6	)	$	30.2	$	16.6	$	(28.9	)	$	72.1	$	43.2

The fair value of the outstanding cash flow hedge contracts was a loss of $0.9 million and $3.2 million at April 2, 2023 and December 31, 2022, respectively.

Unrealized gains and losses on foreign currency cash flow hedge contracts are included in accumulated other comprehensive income (loss). At maturity the gains or losses associated with cash flow hedge contracts are recorded to revenue.

The following table summarizes the fair value of derivative instruments as of April 2, 2023 and December 31, 2022:

	Balance Sheet Location		April 2, 2023			December 31, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Prepayments	$	—		$	86
Foreign exchange forward contracts		Other current liabilities		(1,057	)		(990	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Other current liabilities		(923	)		(3,225	)
Total derivatives			$	(1,980	)	$	(4,129	)

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended April 2, 2023 and April 3, 2022:

			For the Three Months Ended
	Location of Losses (Gains) Recognized in Statement of Operations		April 2, 2023		April 3, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Other (income) expense, net	$	1,259	$	(1,752	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Revenue		1,538		—
Total Derivatives			$	2,797	$	(1,752	)

The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities

denominated in foreign currencies. For the three months ended April 2, 2023 and April 3, 2022 net losses from remeasurement of monetary assets and liabilities denominated in foreign currencies were $0.4 million, and $4.3 million, respectively.

See Note G: “Debt” regarding derivatives related to the convertible senior notes.

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Debt

3 Months Ended

Apr. 02, 2023

Debt

G. DEBT

Convertible Senior Notes

On December 12, 2016, Teradyne completed a private offering of $460.0 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023 and received net proceeds, after issuance costs, of approximately $450.8 million, $33.0 million of which was used to pay the net cost of the convertible note hedge transactions and $50.1 million of which was used to repurchase 2.0 million shares of Teradyne’s common stock under its existing stock repurchase program from purchasers of the Notes in privately negotiated transactions effected through one of the initial purchasers or its affiliates conducted concurrently with the pricing of the Note offering. The Notes will mature on December 15, 2023, unless earlier repurchased or converted. The Notes bear interest at a rate of 1.25% per year payable semiannually in arrears on June 15 and December 15 of each year. The Notes will be convertible at the option of the noteholders at any time prior to the close of business on the business day immediately preceding September 15, 2023, only under the following circumstances: (1) during any calendar quarter beginning after March 31, 2017 (and only during such calendar quarter), if the closing sale price of Teradyne’s common stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of the Teradyne’s common stock and the conversion rate on each such trading day; and (3) upon the occurrence of specified corporate events. On or after September 15, 2023, until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert their Notes at any time, regardless of the foregoing circumstances. Teradyne may satisfy its future conversion obligation by paying cash for the principal amount of the Notes and paying or delivering cash, shares of its common stock or a combination of cash and shares of its common stock, at Teradyne’s election for the amount in excess of principal. On November 4, 2021, Teradyne made an irrevocable election under the Indenture to require the principal portion of the remaining Notes to be settled in cash. As of April 2, 2023, the conversion price was approximately $31.44 per share of Teradyne’s common stock. The conversion rate is subject to adjustment under certain circumstances. As of May 5, 2023, one hundred and thirty debt holders had exercised the option to convert $427.2 million worth of notes.

Concurrent with the offering of the Notes, Teradyne entered into convertible note hedge transactions (the “Note Hedge Transactions”) with the initial purchasers or their affiliates (the “Option Counterparties”). The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, the number of shares of the common stock that underlie the Notes, with a strike price equal to the conversion price of the Notes of $31.44.

Separately and concurrent with the pricing of the Notes, Teradyne entered into warrant transactions with the Option Counterparties (the “Warrant Transactions”) in which it sold net-share-settled (or, at its election subject to certain conditions, cash-settled) warrants to the Option Counterparties. The Warrant Transactions currently cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of common stock. As of April 2, 2023, the strike price of the warrants was approximately $39.46 per share. The strike price is subject to adjustment under certain circumstances. The Warrant Transactions could have a dilutive effect to Teradyne’s common stock to the extent that the market price per share of Teradyne’s common stock, as measured under the terms of the Warrant Transactions, exceeds the applicable strike price of the warrants.

The Note Hedge Transactions are expected to reduce the potential dilution to Teradyne’s common stock upon any conversion of the Notes. However, the Warrant Transactions could separately have a dilutive effect to the extent that the market value per share of Teradyne’s common stock exceeds the applicable strike price of the warrant. The net cost of the Note Hedge Transactions, after being partially offset by the proceeds from the sale of the warrants, was approximately $33.0 million.

In connection with establishing their initial hedge of these convertible note hedge and warrant transactions, the Option Counterparties have entered into various derivative transactions with respect to Teradyne’s common stock and/or purchased shares of Teradyne’s common stock or other securities, including the Notes, concurrent with, or shortly after, the pricing of the Notes. In addition, the Option Counterparties may modify their hedge positions by entering into or unwinding various derivative transactions with respect to Teradyne’s common stock or by selling Teradyne’s common stock or other securities, including the Notes, in secondary market transactions (and may do so during any observation period related to the conversion of the Notes). These activities could adversely affect the value of Teradyne’s common stock and the Notes.

Originally, Teradyne allocated $100.8 million of the $460.0 million principal amount of the Notes to the equity component, which represented a discount to the debt and was amortized to interest expense using the effective interest method through December 2023. Effective January 1, 2022, Teradyne adopted ASC 2020-06 using the modified retrospective method of transition and accounts for the debt as a single liability measured at its amortized cost. As a result of the adoption, Teradyne recorded an increase of $1.4 million to current debt for unsettled shares, an increase of $1.8 million to deferred tax assets, an increase of $6.6 million to long-term debt for unamortized debt discount, and an increase to retained earnings of $94.6 million for the reclassification of the equity component. Mezzanine equity representing unsettled shares value was reduced to zero and additional paid-in capital was reduced by $100.8 million.

Debt issuance fees at April 2, 2023, have been fully amortized to interest expense using the effective interest method over the seven-year term of the Notes.

The tables below represent the key components of Teradyne’s convertible senior notes:

	April 2, 2023		December 31, 2022
	(in thousands)
Debt principal	$	35,109	$	50,228
Unamortized debt issuance fees		—		113
Net carrying amount of convertible debt	$	35,109	$	50,115

Teradyne’s convertible senior notes were reported as current debt at April 2, 2023 and December 31, 2022.

The interest expense on Teradyne’s convertible senior notes for the three months ended April 2, 2023 and April 3, 2022 was as follows:

	For the Three Months Ended
	April 2, 2023		April 3, 2022
	(in thousands)
Contractual interest expense on the coupon	$	138	$	311
Amortization of the issue fees recognized as interest expense		113		66
Total interest expense on the convertible debt	$	251	$	377

As of April 2, 2023, the conversion price was approximately $31.44 per share and the if converted value of the notes was $120.0 million.

Additional conversions of approximately $2.3 million of debt principal will occur in the second quarter of 2023.

Teradyne expects to make principal interest payments of $0.4 million in the next 12 months.

Revolving Credit Facility

On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provided for a three-year, senior secured revolving credit facility of $400.0 million (the “Credit Facility”).

On December 10, 2021, the Credit Agreement was amended to extend the maturity date of the Credit Facility to December 10, 2026. On October 5, 2022, the Credit Agreement was amended to increase the amount of the Credit Facility to $750.0 million from $400.0 million.

The Credit Agreement provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders the available incremental amount under the Credit Facility, not to exceed the greater of $200.0 million or 15% of consolidated EBIDTA. The interest rate applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.00% to 0.75% per annum or SOFR plus a margin ranging from 1.10% to 1.85% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.15% to 0.25% per annum, based on the then applicable consolidated leverage ratio.

Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary SOFR breakage costs.

The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio.

The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65% of the capital stock of certain foreign subsidiaries.

As of May 5, 2023, the Credit Agreement was undrawn and Teradyne was in compliance with all covenants under the Credit Agreement.

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Prepayments

3 Months Ended

Apr. 02, 2023

Prepayments [Abstract]

Prepayments

H. PREPAYMENTS

Prepayments consist of the following:

	April 2, 2023		December 31, 2022
	(in thousands)
Contract manufacturer and supplier prepayments	$	494,849	$	491,105
Prepaid taxes		22,677		18,625
Prepaid maintenance and other services		16,591		14,545
Other prepayments		14,997		8,687
Total prepayments	$	549,114	$	532,962

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Product Warranty

3 Months Ended

Apr. 02, 2023

Product Warranty

I. PRODUCT WARRANTY

Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	14,181		$	24,577
Accruals for warranties issued during the period		4,117			4,100
Accruals related to pre-existing warranties		(405	)		(2,758	)
Settlements made during the period		(4,992	)		(5,814	)
Balance at end of period	$	12,901		$	20,105

When Teradyne receives revenue for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	56,180		$	64,168
Deferral of new extended warranty revenue		4,413			11,774
Recognition of extended warranty deferred revenue		(11,250	)		(10,216	)
Balance at end of period	$	49,343		$	65,726

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Stock-Based Compensation

3 Months Ended

Apr. 02, 2023

Stock-Based Compensation

J. STOCK-BASED COMPENSATION

On February 1, 2023 (the” Retirement Date”), Mark E. Jagiela retired as Chief Executive Officer of Teradyne and a member of Teradyne’s Board of Directors, and Teradyne entered into an agreement (the “Retirement Agreement”) with Mr. Jagiela. Under the Retirement Agreement, Mr. Jagiela’s unvested time-based restricted stock units and stock options granted prior to his Retirement Date were modified to allow continued vesting; and any vested options or options that vest during that period may be exercised for the remainder of the applicable option term. During the three months ended April 2, 2023, Teradyne recorded a stock based compensation expense of $5.9 million related to the Retirement Agreement.

Under Teradyne’s stock compensation plans, Teradyne grants time-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”).

Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years. Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100% of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to time-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse.

Performance-based restricted stock units (“PRSUs”) granted to Teradyne’s executive officers may have a performance metric based on relative total shareholder return (“TSR”). Teradyne’s three-year TSR performance is measured against the New York Stock Exchange (“NYSE”) Composite Index. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized regardless of the eventual number of units that are earned based upon the market condition, provided the executive officer remains an employee at the end of the three-year period. Compensation expense is reversed if at any time during the three-year service period the executive officer is no longer an employee, subject to the retirement and termination eligibility provisions noted below.

PRSUs granted to Teradyne’s executive officers may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense; and other non-recurring gains and charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the year following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the executive officer remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below.

If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will

vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the executive officer is no longer an employee at the end of the three-year period. Stock options to purchase Teradyne’s common stock at 100% of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.5 million and 0.4 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $102.36 and $111.31, respectively.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of PBIT PRSUs with a grant date fair value of $102.23 and $110.84, respectively.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of TSR PRSUs, with a grant date fair value of $137.64 and $101.06, respectively. The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Risk-free interest rate		3.9	%		1.4	%
Teradyne volatility-historical		50.2	%		47.1	%
NYSE Composite Index volatility-historical		24.8	%		22.7	%
Dividend yield		0.4	%		0.4	%

Expected volatility was based on the historical volatility of Teradyne’s stock and the NYSE Composite Index over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $103.44 for the 2023 grant and an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $112.12 for the 2022 grant.

During the three months ended April 2, 2023 and April 3, 2022, Teradyne granted 0.1 million of service-based stock options to executive officers at a weighted average grant date fair value of $40.90 and $39.01, respectively.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Expected life (years)		4.0			4.0
Risk-free interest rate		3.7	%		1.6	%
Volatility-historical		46.7	%		43.7	%
Dividend yield		0.4	%		0.4	%

Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $103.44 for the 2023 grant and an estimated annual dividend amount of $0.44 per share divided by Teradyne’s stock price on the grant date of $112.12 for the 2022 grant.

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Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Apr. 02, 2023

Accumulated Other Comprehensive Income (Loss)

K. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Changes in accumulated other comprehensive income (loss), which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized (Losses) Gains on Marketable Securities			Unrealized (Losses) Gains on Cash Flow Hedges			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended April 2, 2023
Balance at December 31, 2022, net of tax of $0, $(2,308), $(708), $(1,130), respectively	$	(39,849	)	$	(8,661	)	$	(2,517	)	$	1,159		$	(49,868	)
Other comprehensive gain before reclassifications, net of tax of $0, $503, $167, $0, respectively		9,309			2,294			596			—			12,199
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $2, $338, $0, respectively		—			5			1,200			(2	)		1,203
Net current period other comprehensive gain (loss), net of tax of $0, $505, $505 $0, respectively		9,309			2,299			1,796			(2	)		13,402
Balance at April 2, 2023, net of tax of $0, $(1,803), $(203), $(1,130) respectively	$	(30,540	)	$	(6,362	)	$	(721	)	$	1,157		$	(36,466	)
Three Months Ended April 3, 2022
Balance at December 31, 2021, net of tax of $0, $1,055, $0, $(1,128), respectively	$	(10,818	)	$	3,704		$	—		$	1,166		$	(5,948	)
Other comprehensive loss before reclassifications, net of tax of $0, $(1,333), $0, $0, respectively		(8,076	)		(5,388	)		—			—			(13,464	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(18), $0, $0, respectively		—			(65	)		—			(2	)		(67	)
Net current period other comprehensive loss, net of tax of $0, $(1,351), $0, $0, respectively		(8,076	)		(5,453	)		—			(2	)		(13,531	)
Balance at April 3, 2022, net of tax of $0, $(296), $0, $(1,128), respectively	$	(18,894	)	$	(1,749	)	$	—		$	1,164		$	(19,479	)

Reclassifications out of accumulated other comprehensive income (loss) to the statement of operations for the three months ended April 2, 2023 and April 3, 2022, were as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	For the Three Months Ended					Affected Line Item in the Statements of Operations
	April 2,			April 3,
	2023			2022
	(in thousands)
Available-for-sale marketable securities:
Unrealized (losses) gains, net of tax of $(2) and $18, respectively	$	(5	)	$	65		Other (income) expense, net
Cash flow hedges:
Unrealized losses, net of tax of $(338) and $0, respectively		(1,200	)		—		Revenue
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0 and $0, respectively		2			2		(a)
Total reclassifications, net of tax of $(340) and $18, respectively	$	(1,203	)	$	67		Net income

(a) The amortization of prior service credit is included in the computation of net periodic postretirement benefit cost. See Note O: “Retirement Plans.”

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Goodwill and Acquired Intangible Assets

3 Months Ended

Apr. 02, 2023

Goodwill and Acquired Intangible Assets

L. GOODWILL AND ACQUIRED INTANGIBLE ASSETS

Goodwill

Teradyne performs its annual goodwill impairment test as required under the provisions of ASC 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless interim indicators of impairment exist. In the three months ended April 2, 2023, there were no interim indicators of impairment. Goodwill is considered impaired when the net book value of a reporting unit exceeds its estimated fair value.

The changes in the carrying amount of goodwill by reportable segments for the three months ended April 2, 2023, were as follows:

	Robotics		Wireless Test			Semiconductor Test			System Test			Total
	(in thousands)
Balance at December 31, 2022
Goodwill	$	383,166	$	361,819		$	262,077		$	158,699		$	1,165,761
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
		383,166		7,976			1,537			10,516			403,195
Foreign currency translation adjustment		6,609		—			24			—			6,633
Balance at April 2, 2023
Goodwill		389,775		361,819			262,101			158,699			1,172,394
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
	$	389,775	$	7,976		$	1,561		$	10,516		$	409,828

Intangible Assets

Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate.

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance at April 2, 2023
Developed technology	$	270,967	$	(237,269	)	$	(5,560	)	$	28,138
Customer relationships		57,739		(51,756	)		184			6,167
Tradenames and trademarks		59,387		(43,101	)		(1,345	)		14,941
Total intangible assets	$	388,093	$	(332,126	)	$	(6,721	)	$	49,246
Balance, December 31, 2022
Developed technology	$	270,967	$	(234,208	)	$	(5,935	)	$	30,824
Customer relationships		57,739		(51,186	)		172			6,725
Tradenames and trademarks		59,387		(41,930	)		(1,528	)		15,929
Total intangible assets	$	388,093	$	(327,324	)	$	(7,291	)	$	53,478

Aggregate intangible asset amortization expense for the three months ended April 2, 2023 and April 3, 2022 was $4.8 million and $5.1 million, respectively.

Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:

Year	Amortization Expense
	(in thousands)
2023	$	14,219
2024		18,749
2025		11,320
2026		2,371
2027		1,155
Thereafter		1,432

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Net Income Per Common Share

3 Months Ended

Apr. 02, 2023

Net Income per Common Share

M. NET INCOME PER COMMON SHARE

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	83,531	$	161,928
Weighted average common shares-basic		155,904		162,048
Effect of dilutive potential common shares:
Convertible note hedge warrant shares (1)		8,983		10,028
Incremental shares from assumed conversion of convertible notes (2)		914		2,541
Restricted stock units		453		875
Stock options		48		69
Employee stock purchase plan		6		14
Dilutive potential common shares		10,404		13,527
Weighted average common shares-diluted		166,308		175,575
Net income per common share-basic	$	0.54	$	1.00
Net income per common share-diluted	$	0.50	$	0.92

(1) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price, multiplied by the number of warrant shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

(2) Incremental shares from assumed conversion of the convertible notes were calculated using the difference between the average Teradyne stock price for the period and the conversion price, multiplied by the number of convertible notes shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

The computation of diluted net income per common share for the three months ended April 2, 2023 and April 3, 2022 excludes the effect of the potential vesting of 0.5 million and 0.1 million, respectively, of restricted stock units because the effect would have been anti-dilutive.

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Restructuring and Other

3 Months Ended

Apr. 02, 2023

Restructuring and Related Activities [Abstract]

Restructuring and Other

N. RESTRUCTURING AND OTHER

During the three months ended April 2, 2023, Teradyne recorded $2.0 million of severance charges related to headcount reductions of 67 people primarily in Semiconductor Test, Robotics and Corporate.

During the three months ended April 3, 2022, Teradyne recorded a charge of $14.7 million related to the arbitration claim filed against Teradyne and AutoGuide related to an earn-out dispute, which was settled on March 25, 2022 for $26.7 million.

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Retirement Plans

3 Months Ended

Apr. 02, 2023

Retirement Plans

O. RETIREMENT PLANS

ASC 715, “Compensation—Retirement Benefits,” requires an employer with defined benefit plans or other postretirement benefit plans to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plans as defined by ASC 715. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all of its plans.

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets of the U.S. qualified pension plan consist primarily of fixed income and equity securities. In addition, Teradyne has an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act (“ERISA”) and the Internal Revenue Code (the “IRC”), as well as unfunded qualified foreign plans.

In the three months ended April 2, 2023 and April 3, 2022, Teradyne contributed $0.8 million and $0.8 million, respectively, to the U.S. supplemental executive defined benefit pension plan, and $0.2 million and $0.3 million, respectively, to certain qualified pension plans for non-U.S. subsidiaries.

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	April 2, 2023						April 3, 2022
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	272		$	109		$	397		$	206
Interest cost		1,711			262			1,222			118
Expected return on plan assets		(1,285	)		(9	)		(732	)		(20	)
Total net periodic pension cost	$	698		$	362		$	887		$	304

Postretirement Benefit Plan

In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits and the existing benefit obligation relates primarily to those employees.

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Service cost	$	9		$	17
Interest cost		61			44
Amortization of prior service credit		(2	)		(2	)
Total net periodic postretirement benefit cost	$	68		$	59

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Commitments and Contingencies

3 Months Ended

Apr. 02, 2023

Commitments and Contingencies

P. COMMITMENTS AND CONTINGENCIES

Purchase Commitments

As of April 2, 2023, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $589.7 million, of which $530.7 million is for less than one year.

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.

On March 8, 2021, Industrial Automation LLC, sellers of AutoGuide, submitted a demand for arbitration against Teradyne and AutoGuide in Wilmington, Delaware alleging that Teradyne and AutoGuide breached certain provisions of the Membership Interests Purchase Agreement (the “Purchase Agreement”), dated as of October 18, 2019, among Industrial Automation LLC, Teradyne and AutoGuide. The arbitration demand sought full acceleration of the maximum earn-out amount payable under the Purchase Agreement, or $106.9 million, for the alleged breach of the earn-out provisions of the Purchase Agreement. On March 25, 2022, the arbitration claim was settled for $26.7 million. As a result, Teradyne has no remaining earn-out obligations.

Guarantees and Indemnification Obligations

Teradyne provides indemnification, to the extent permitted by law, to its officers, directors, employees and agents for liabilities arising from certain events or occurrences, while the officer, director, employee, or agent, is or was serving, at Teradyne’s request in

such capacity. Teradyne may enter into indemnification agreements with certain of its officers and directors. With respect to acquisitions, Teradyne provides indemnifications to or assumes indemnification obligations for the current and former directors, officers and employees of the acquired companies in accordance with the acquired companies’ by-laws and charter. As a matter of practice, Teradyne has maintained directors’ and officers’ liability insurance coverage including coverage for directors and officers of acquired companies.

Teradyne enters into agreements in the ordinary course of business with customers, resellers, distributors, integrators and suppliers. Most of these agreements require Teradyne to defend and/or indemnify the other party against intellectual property infringement claims brought by a third party with respect to Teradyne’s products. From time to time, Teradyne also indemnifies customers and business partners for damages, losses and liabilities they may suffer or incur relating to personal injury, personal property damage, product liability, breach of confidentiality obligations and environmental claims relating to the use of Teradyne’s products and services or resulting from the acts or omissions of Teradyne, its employees, authorized agents or subcontractors. On occasion, Teradyne has also provided guarantees to customers regarding the delivery and performance of its products in addition to the warranty described below.

As a matter of ordinary course of business, Teradyne warrants that its products will substantially perform in accordance with its standard published specifications in effect at the time of delivery. Most warranties have a one-year duration commencing from installation. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based upon historical experience. When Teradyne receives revenue for extended warranties beyond the standard duration, the revenue is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. As of April 2, 2023 and December 31, 2022, Teradyne had a product warranty accrual of $12.9 million and $14.2 million, respectively, included in other accrued liabilities and revenue deferrals related to extended warranties of $49.3 million and $56.2 million, respectively, included in short and long-term deferred revenue and customer advances.

In addition, in the ordinary course of business, Teradyne provides minimum purchase guarantees to certain vendors to ensure continuity of supply against the market demand. Although some of these guarantees provide penalties for cancellations and/or modifications to the purchase commitments as the market demand decreases, most of the guarantees do not. Therefore, as the market demand decreases, Teradyne re-evaluates these guarantees and determines what charges, if any, should be recorded.

With respect to its agreements covering product, business or entity divestitures and acquisitions, Teradyne provides certain representations, warranties and covenants to purchasers and agrees to indemnify and hold such purchasers harmless against breaches of such representations, warranties and covenants. Many of the indemnification claims have a definite expiration date while some remain in force indefinitely. With respect to its acquisitions, Teradyne may, from time to time, assume the liability for certain events or occurrences that took place prior to the date of acquisition.

As a matter of ordinary course of business, Teradyne occasionally guarantees certain indebtedness obligations of its subsidiary companies, limited to the borrowings from financial institutions, purchase commitments to certain vendors and lease commitments to landlords.

Based on historical experience and information known as of April 2, 2023 and December 31, 2022, except for product warranty, Teradyne has not recorded any liabilities for these guarantees and obligations because the amount would be immaterial.

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Income Taxes

3 Months Ended

Apr. 02, 2023

Income Taxes

Q. INCOME TAXES

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
US statutory federal tax rate		21.0	%		21.0	%
Non-deductible officers’ compensation		0.9			1.1
Discrete benefit related to equity compensation		(3.3	)		(6.6	)
International provisions of the U.S. Tax Cuts and Jobs Act of 2017		(3.2	)		(1.3	)
Tax credits		(2.5	)		(1.6	)
Foreign taxes		(0.6	)		(3.4	)
Other, net		1.7			1.0
Effective tax rate		14.0	%		10.2	%

On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of April 2, 2023, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the

condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets.

As of April 2, 2023 and December 31, 2022, Teradyne had $15.7 million and $15.6 million, respectively, of reserves for uncertain tax positions. The $0.1 million net increase in reserves for uncertain tax positions is related to U.S. federal research and development credits generated in the current year.

As of April 2, 2023, Teradyne estimates that it is reasonably possible that the balance of unrecognized tax benefits may decrease approximately $0.1 million in the next twelve months because of a lapse of statutes of limitation. The estimated decrease relates to U.S. state research and development credits.

Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of April 2, 2023 and December 31, 2022, $0.4 million and $0.4 million, respectively, of interest and penalties were accrued for uncertain tax positions. For the three months ended April 2, 2023 and April 3, 2022, expense of $0.1 million and $0.1 million, respectively, was recorded for interest and penalties related to income tax items.

Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings due to the tax holiday for the three months ended April 2, 2023 was $0.2 million, or $0.0 per diluted share. The tax savings due to the tax holiday for the three months ended April 3, 2022 was $3.5 million, or $0.02 per diluted share. In November 2020, Teradyne entered into an agreement with the Singapore Economic Development Board which extended our Singapore tax holiday under substantially similar terms to the agreement which expired on December 31, 2020. The new tax holiday is scheduled to expire on December 31, 2025.

On August 16, 2022, the Inflation Reduction Act of 2022 (“IRA”) was signed into law. The IRA introduced a 15% alternative minimum tax based on the financial statement income of certain large corporations (“CAMT”), effective January 1, 2023. Teradyne currently does not expect the CAMT to have a material impact on its financial results.

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Segment Information

3 Months Ended

Apr. 02, 2023

Segment Reporting [Abstract]

Segment Information

R. SEGMENT INFORMATION

Teradyne has four reportable segments (Semiconductor Test, System Test, Wireless Test and Robotics). Each of the reportable segments represents an individual operating segment.

The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The System Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace instrumentation test, storage and system level test, and circuit-board test. The Wireless Test segment includes operations related to the design, manufacturing and marketing of wireless test products and services. The Robotics segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms, autonomous mobile robots and advanced robotic control software. Each operating segment has a segment manager who is accountable to and maintains regular contact with Teradyne’s chief operating decision maker (Teradyne’s chief executive officer) to discuss operating activities, financial results, forecasts and plans for the segment.

Teradyne evaluates performance based on several factors, of which the primary financial measure is business segment income (loss) before income taxes. The accounting policies of the business segments are the same as those described in Note B: “Accounting Policies” in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2022.

Segment information for the three months ended April 2, 2023 and April 3, 2022 is as follows:

	Semiconductor Test		System Test		Robotics			Wireless Test		Corporate and Eliminations			Consolidated
	(in thousands)
Three Months Ended April 2, 2023
Revenues	$	415,009	$	74,631	$	89,214		$	38,675	$	—		$	617,529
Income (loss) before income taxes (1)(2)		96,185		15,275		(18,490	)		9,352		(5,238	)		97,084
Total assets (3)		1,386,851		173,669		676,092			87,875		1,058,920			3,383,407
Three Months Ended April 3, 2022
Revenues	$	482,341	$	118,668	$	103,189		$	51,518	$	(346	)	$	755,370
Income (loss) before income taxes (1)(2)		149,705		41,322		(5,098	)		18,619		(24,189	)		180,359
Total assets (3)		1,296,070		187,283		675,560			113,821		1,336,420			3,609,154

(1) Included in Corporate and Eliminations are: interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

(2) Included in income (loss) before taxes are charges related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,768	$	—
Restructuring and other—employee severance		794		—
System Test:
Cost of revenues—inventory charge	$	675		—
Robotics:
Cost of revenues—inventory charge	$	782	$	—
Wireless:
Cost of revenues—inventory charge	$	—	$	877
Corporate and Other:
Selling and administrative - equity modification charge	$	5,889	$	—
Restructuring and other—employee severance		659		—
Restructuring and other—legal settlement charge		—		14,700

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Shareholders' Equity

3 Months Ended

Apr. 02, 2023

Equity [Abstract]

Shareholders' Equity

S. SHAREHOLDERS’ EQUITY

Stock Repurchase Program

In January 2023, Teradyne’s Board of Directors cancelled its January 2021 repurchase program and approved a new repurchase program for up to $2.0 billion of common stock. Teradyne intends to repurchase up to $500.0 million of its common stock in 2023 based on market conditions.

During the three months ended April 2, 2023, Teradyne repurchased 0.9 million shares of common stock for a total cost of $93.7 million at an average price of $104.88 per share. As of January 1, 2023, share repurchases in excess of issuances are subject to a 1% excise tax, which is included as part of the cost basis of the shares acquired.

During the three months ended April 3, 2022, Teradyne repurchased 1.8 million shares of common stock for $201.5 million at an average price of $115.12 per share.

The total cost of shares acquired includes commissions and, starting in 2023, related excise tax, and is recorded as a reduction to retained earnings.

Dividend

Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors.

In January 2023 and January 2022, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.11 per share. Dividend payments for the three months ended April 2, 2023 and April 3, 2022 were $17.2 million and $17.9 million, respectively.

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Accounting Policies (Policies)

3 Months Ended

Apr. 02, 2023

Basis of Presentation

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts may have been reclassified to conform to the current year presentation. The December 31, 2022 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by United States of America generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on February 22, 2023, for the year ended December 31, 2022.

Preparation of Financial Statements and Use of Estimates

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts of assets, liabilities, revenues and expenses, and related disclosures of contingent liabilities. On an on-going basis, management evaluates its estimates, including those related to inventories, investments, goodwill, intangible and other long-lived assets, accounts receivable, income taxes, deferred tax assets and liabilities, pensions, warranties, contingent consideration liabilities, and loss contingencies. Management bases its estimates on historical experience and on appropriate and customary assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgements about the carrying values of assets and liabilities that are not readily apparent from other sources. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Management is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q. These estimates may change, as new events occur and additional information is obtained. Actual results may differ significantly from these estimates under different assumptions or conditions.

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Revenue (Tables)

3 Months Ended

Apr. 02, 2023

Revenue from Contract with Customer [Abstract]

Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Robotics
	System on- a-Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		Wireless Test		Corporate and Eliminations			Total
	(in thousands)
For the Three Months Ended April 2, 2023 (1)
Timing of Revenue Recognition
Point in Time	$	273,275	$	61,258	$	56,857	$	70,029	$	15,959	$	35,363	$	—		$	512,741
Over Time		73,559		6,917		17,774		2,008		1,218		3,312		—			104,788
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
Geographical Market
Asia Pacific	$	283,259	$	63,695	$	39,590	$	13,217	$	1,502	$	23,231	$	—		$	424,494
Americas		41,568		2,944		28,980		20,447		11,806		12,846		—			118,591
Europe, Middle East and Africa		22,007		1,536		6,061		38,373		3,869		2,598		—			74,444
Total	$	346,834	$	68,175	$	74,631	$	72,037	$	17,177	$	38,675	$	—		$	617,529
For the Three Months Ended April 3, 2022 (1)
Timing of Revenue Recognition
Point in Time	$	323,456	$	88,723	$	105,288	$	83,182	$	16,744	$	48,429	$	(346	)	$	665,476
Over Time		63,129		7,033		13,380		2,102		1,161		3,089		—			89,894
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370
Geographical Market
Asia Pacific	$	340,741	$	93,151	$	73,784	$	18,621	$	2,592	$	34,946	$	—		$	563,835
Americas		29,714		2,046		36,608		28,148		8,564		9,687		(346	)		114,421
Europe, Middle East and Africa		16,130		559		8,276		38,515		6,749		6,885		—			77,114
Total	$	386,585	$	95,756	$	118,668	$	85,284	$	17,905	$	51,518	$	(346	)	$	755,370

(1) Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

Deferred Revenue and Customer Advances

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	April 2, 2023		December 31, 2022
	(in thousands)
Maintenance, service and training	$	70,609	$	78,089
Extended warranty		49,343		56,180
Customer advances, undelivered elements and other		41,200		59,147
Total deferred revenue and customer advances	$	161,152	$	193,416

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Inventories (Tables)

3 Months Ended

Apr. 02, 2023

Composition of Inventories, Net

Inventories, net consisted of the following at April 2, 2023 and December 31, 2022:

	April 2, 2023		December 31, 2022
	(in thousands)
Raw material	$	264,035	$	256,065
Work-in-process		43,987		37,982
Finished goods		44,036		30,972
	$	352,058	$	325,019

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Financial Instruments (Tables)

3 Months Ended

Apr. 02, 2023

Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of April 2, 2023 and December 31, 2022.

	April 2, 2023
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	244,542	$	—	$	—	$	244,542
Cash equivalents		252,374		152,292		—		404,666
Available-for-sale securities:
U.S. Treasury securities		—		52,168		—		52,168
Corporate debt securities		—		51,369		—		51,369
Commercial paper		—		47,548		—		47,548
U.S. government agency securities		—		7,394		—		7,394
Debt mutual funds		6,800		—		—		6,800
Certificates of deposit and time deposits		—		1,754		—		1,754
Non-U.S. government securities		—		554		—		554
Equity securities:
Mutual funds		42,246		—		—		42,246
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Derivative liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	496,916	$	152,292	$	—	$	649,208
Marketable securities		—		92,895		—		92,895
Long-term marketable securities		49,046		67,892		—		116,938
Total	$	545,962	$	313,079	$	—	$	859,041
Liabilities
Other current liabilities	$	—	$	1,980	$	—	$	1,980
Total	$	—	$	1,980	$	—	$	1,980

	December 31, 2022
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	632,417	$	—	$	—	$	632,417
Cash equivalents		161,767		60,589		—		222,356
Available for sale securities:
Corporate debt securities		—		50,856		—		50,856
U.S. Treasury securities		—		39,649		—		39,649
Commercial paper		—		7,159		—		7,159
Debt mutual funds		6,580		—		—		6,580
U.S. government agency securities		—		6,352		—		6,352
Certificates of deposit and time deposits		—		1,740		—		1,740
Non-U.S. government securities		—		535		—		535
Equity securities:
Mutual funds		37,518		—		—		37,518
Total	$	838,282	$	166,880	$	—	$	1,005,162
Derivative assets		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Derivative liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	794,184	$	60,589	$	—	$	854,773
Marketable securities		—		39,612		—		39,612
Long-term marketable securities		44,098		66,679		—		110,777
Prepayments		—		86		—		86
Total	$	838,282	$	166,966	$	—	$	1,005,248
Liabilities
Other current liabilities	$	—	$	4,215	$	—	$	4,215
Total	$	—	$	4,215	$	—	$	4,215

Schedule of Carrying Amounts and Fair Values of Financial Instruments

The carrying amounts and fair values of Teradyne’s financial instruments at April 2, 2023 and December 31, 2022 were as follows:

	April 2, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	649,208	$	649,208	$	854,773	$	854,773
Marketable securities		209,833		209,833		150,389		150,389
Derivative assets		—		—		86		86
Liabilities
Derivative liabilities		1,980		1,980		4,215		4,215
Convertible debt		35,109		119,586		50,115		139,007

Schedule of Available-for-Sale Marketable Securities

The following table summarizes the composition of available-for-sale marketable securities at April 2, 2023:

	April 2, 2023
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
U.S. Treasury securities	$	55,615	$	38	$	(3,485	)	$	52,168	$	49,669
Corporate debt securities		56,040		41		(4,712	)		51,369		49,131
Commercial paper		47,225		337		(14	)		47,548		16,845
U.S. government agency securities		7,427		9		(42	)		7,394		4,419
Debt mutual funds		7,130		—		(330	)		6,800		3,312
Certificates of deposit and time deposits		1,754		—		—			1,754		—
Non-U.S. government securities		554		—		—			554		—
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	92,915	$	337	$	(357	)	$	92,895	$	60,438
Long-term marketable securities		82,830		88		(8,226	)		74,692		62,938
	$	175,745	$	425	$	(8,583	)	$	167,587	$	123,376

The following table summarizes the composition of available-for-sale marketable securities at December 31, 2022:

	December 31, 2022
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Corporate debt securities	$	57,006	$	3	$	(6,153	)	$	50,856	$	50,667
U.S. Treasury securities		44,030		—		(4,381	)		39,649		39,649
Commercial paper		7,089		70		—			7,159		—
Debt mutual funds		6,997		—		(417	)		6,580		3,095
U.S. government agency securities		6,442		—		(90	)		6,352		6,352
Certificates of deposit and time deposits		1,740		—		—			1,740		—
Non-U.S. government securities		535		—		—			535		—
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	39,950	$	70	$	(408	)	$	39,612	$	30,713
Long-term marketable securities		83,889		3		(10,633	)		73,259		69,050
	$	123,839	$	73	$	(11,041	)	$	112,871	$	99,763

Contractual Maturities of Investments Held

The contractual maturities of investments in available-for-sale securities held at April 2, 2023 were as follows:

	April 2, 2023
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	92,915	$	92,895
Due after 1 year through 5 years		31,721		30,672
Due after 5 years through 10 years		5,022		4,612
Due after 10 years		38,957		32,608
Total	$	168,615	$	160,787

Schedule of Notional Amount of Derivatives

At April 2, 2023 and December 31, 2022, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:

	April 2, 2023								December 31, 2022
	Buy Position			Sell Position		Net Total			Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(57.7	)	$	—	$	(57.7	)	$	(37.1	)	$	—	$	(37.1	)
Taiwan Dollar		(38.3	)		—		(38.3	)		(29.2	)		—		(29.2	)
Korean Won		(3.1	)		—		(3.1	)		(6.4	)		—		(6.4	)
British Pound Sterling		(1.2	)		—		(1.2	)		(1.2	)		—		(1.2	)
Singapore Dollar		—			35.7		35.7			—			33.5		33.5
Euro		—			24.3		24.3			—			38.4		38.4
Philippine Peso		—			2.5		2.5			—			2.7		2.7
Chinese Yuan		—			1.9		1.9			—			2.2		2.2
Total	$	(100.3	)	$	64.4	$	(35.9	)	$	(73.9	)	$	76.8	$	2.9

Schedule of Foreign Currency Cash Flow Hedges

At April 2, 2023 and December 31, 2022, Teradyne had the following cash flow hedge contracts to buy and sell non-U.S. currencies for U.S. dollars with the following notional amounts:

	April 2, 2023							December 31, 2022
	Buy Position			Sell Position		Net Total		Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	(13.6	)	$	30.2	$	16.6	$	(23.4	)	$	61.2	$	37.8
Taiwan Dollar		—			—		—		(5.5	)		10.9		5.4
Total	$	(13.6	)	$	30.2	$	16.6	$	(28.9	)	$	72.1	$	43.2

Schedule of Derivative Instruments in Statement of Financial Position at Fair Value

The following table summarizes the fair value of derivative instruments as of April 2, 2023 and December 31, 2022:

	Balance Sheet Location		April 2, 2023			December 31, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Prepayments	$	—		$	86
Foreign exchange forward contracts		Other current liabilities		(1,057	)		(990	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Other current liabilities		(923	)		(3,225	)
Total derivatives			$	(1,980	)	$	(4,129	)

Schedule of Effect of Derivative Instruments on Statement of Operations Recognized

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended April 2, 2023 and April 3, 2022:

			For the Three Months Ended
	Location of Losses (Gains) Recognized in Statement of Operations		April 2, 2023		April 3, 2022
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange forward contracts		Other (income) expense, net	$	1,259	$	(1,752	)
Derivatives designated as hedging instruments:
Foreign exchange option contracts		Revenue		1,538		—
Total Derivatives			$	2,797	$	(1,752	)

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Debt (Tables)

3 Months Ended

Apr. 02, 2023

Components of Convertible Senior Notes

The tables below represent the key components of Teradyne’s convertible senior notes:

	April 2, 2023		December 31, 2022
	(in thousands)
Debt principal	$	35,109	$	50,228
Unamortized debt issuance fees		—		113
Net carrying amount of convertible debt	$	35,109	$	50,115

Teradyne’s convertible senior notes were reported as current debt at April 2, 2023 and December 31, 2022.

The interest expense on Teradyne’s convertible senior notes for the three months ended April 2, 2023 and April 3, 2022 was as follows:

	For the Three Months Ended
	April 2, 2023		April 3, 2022
	(in thousands)
Contractual interest expense on the coupon	$	138	$	311
Amortization of the issue fees recognized as interest expense		113		66
Total interest expense on the convertible debt	$	251	$	377

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Prepayments (Tables)

3 Months Ended

Apr. 02, 2023

Prepayments [Abstract]

Schedule of Prepayments and other assets

Prepayments consist of the following:

	April 2, 2023		December 31, 2022
	(in thousands)
Contract manufacturer and supplier prepayments	$	494,849	$	491,105
Prepaid taxes		22,677		18,625
Prepaid maintenance and other services		16,591		14,545
Other prepayments		14,997		8,687
Total prepayments	$	549,114	$	532,962

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Product Warranty (Tables)

3 Months Ended

Apr. 02, 2023

Other Accrued Liabilities

Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	14,181		$	24,577
Accruals for warranties issued during the period		4,117			4,100
Accruals related to pre-existing warranties		(405	)		(2,758	)
Settlements made during the period		(4,992	)		(5,814	)
Balance at end of period	$	12,901		$	20,105

Extended Product Warranty of Short and Long-Term Deferred Revenue and Customer Advances

Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	April 2, 2023			April 3, 2022
	(in thousands)
Balance at beginning of period	$	56,180		$	64,168
Deferral of new extended warranty revenue		4,413			11,774
Recognition of extended warranty deferred revenue		(11,250	)		(10,216	)
Balance at end of period	$	49,343		$	65,726

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Stock-Based Compensation (Tables)

3 Months Ended

Apr. 02, 2023

Schedule of Estimated Fair Value of TSR Performance-Based Restricted Stock Unit Awards Assumptions

The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Risk-free interest rate		3.9	%		1.4	%
Teradyne volatility-historical		50.2	%		47.1	%
NYSE Composite Index volatility-historical		24.8	%		22.7	%
Dividend yield		0.4	%		0.4	%

Fair Value of Stock Options Using Assumptions

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	April 2, 2023			April 3, 2022
Expected life (years)		4.0			4.0
Risk-free interest rate		3.7	%		1.6	%
Volatility-historical		46.7	%		43.7	%
Dividend yield		0.4	%		0.4	%

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Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Apr. 02, 2023

Changes in Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss), which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized (Losses) Gains on Marketable Securities			Unrealized (Losses) Gains on Cash Flow Hedges			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended April 2, 2023
Balance at December 31, 2022, net of tax of $0, $(2,308), $(708), $(1,130), respectively	$	(39,849	)	$	(8,661	)	$	(2,517	)	$	1,159		$	(49,868	)
Other comprehensive gain before reclassifications, net of tax of $0, $503, $167, $0, respectively		9,309			2,294			596			—			12,199
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $2, $338, $0, respectively		—			5			1,200			(2	)		1,203
Net current period other comprehensive gain (loss), net of tax of $0, $505, $505 $0, respectively		9,309			2,299			1,796			(2	)		13,402
Balance at April 2, 2023, net of tax of $0, $(1,803), $(203), $(1,130) respectively	$	(30,540	)	$	(6,362	)	$	(721	)	$	1,157		$	(36,466	)
Three Months Ended April 3, 2022
Balance at December 31, 2021, net of tax of $0, $1,055, $0, $(1,128), respectively	$	(10,818	)	$	3,704		$	—		$	1,166		$	(5,948	)
Other comprehensive loss before reclassifications, net of tax of $0, $(1,333), $0, $0, respectively		(8,076	)		(5,388	)		—			—			(13,464	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(18), $0, $0, respectively		—			(65	)		—			(2	)		(67	)
Net current period other comprehensive loss, net of tax of $0, $(1,351), $0, $0, respectively		(8,076	)		(5,453	)		—			(2	)		(13,531	)
Balance at April 3, 2022, net of tax of $0, $(296), $0, $(1,128), respectively	$	(18,894	)	$	(1,749	)	$	—		$	1,164		$	(19,479	)

Reclassifications Out of Accumulated Other Comprehensive Income (Loss) to Statements of Operations

Reclassifications out of accumulated other comprehensive income (loss) to the statement of operations for the three months ended April 2, 2023 and April 3, 2022, were as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	For the Three Months Ended					Affected Line Item in the Statements of Operations
	April 2,			April 3,
	2023			2022
	(in thousands)
Available-for-sale marketable securities:
Unrealized (losses) gains, net of tax of $(2) and $18, respectively	$	(5	)	$	65		Other (income) expense, net
Cash flow hedges:
Unrealized losses, net of tax of $(338) and $0, respectively		(1,200	)		—		Revenue
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0 and $0, respectively		2			2		(a)
Total reclassifications, net of tax of $(340) and $18, respectively	$	(1,203	)	$	67		Net income

(a) The amortization of prior service credit is included in the computation of net periodic postretirement benefit cost. See Note O: “Retirement Plans.”

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Goodwill and Acquired Intangible Assets (Tables)

3 Months Ended

Apr. 02, 2023

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the three months ended April 2, 2023, were as follows:

	Robotics		Wireless Test			Semiconductor Test			System Test			Total
	(in thousands)
Balance at December 31, 2022
Goodwill	$	383,166	$	361,819		$	262,077		$	158,699		$	1,165,761
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
		383,166		7,976			1,537			10,516			403,195
Foreign currency translation adjustment		6,609		—			24			—			6,633
Balance at April 2, 2023
Goodwill		389,775		361,819			262,101			158,699			1,172,394
Accumulated impairment losses		—		(353,843	)		(260,540	)		(148,183	)		(762,566	)
	$	389,775	$	7,976		$	1,561		$	10,516		$	409,828

Schedule of Amortizable Intangible Assets

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance at April 2, 2023
Developed technology	$	270,967	$	(237,269	)	$	(5,560	)	$	28,138
Customer relationships		57,739		(51,756	)		184			6,167
Tradenames and trademarks		59,387		(43,101	)		(1,345	)		14,941
Total intangible assets	$	388,093	$	(332,126	)	$	(6,721	)	$	49,246
Balance, December 31, 2022
Developed technology	$	270,967	$	(234,208	)	$	(5,935	)	$	30,824
Customer relationships		57,739		(51,186	)		172			6,725
Tradenames and trademarks		59,387		(41,930	)		(1,528	)		15,929
Total intangible assets	$	388,093	$	(327,324	)	$	(7,291	)	$	53,478

Schedule of Estimated Intangible Assets Amortization Expense

Estimated intangible asset amortization expense for each of the five succeeding fiscal years and thereafter is as follows:

Year	Amortization Expense
	(in thousands)
2023	$	14,219
2024		18,749
2025		11,320
2026		2,371
2027		1,155
Thereafter		1,432

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Net Income Per Common Share (Tables)

3 Months Ended

Apr. 02, 2023

Computation of Basic and Diluted Net Income (Loss) Per Common Share

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	83,531	$	161,928
Weighted average common shares-basic		155,904		162,048
Effect of dilutive potential common shares:
Convertible note hedge warrant shares (1)		8,983		10,028
Incremental shares from assumed conversion of convertible notes (2)		914		2,541
Restricted stock units		453		875
Stock options		48		69
Employee stock purchase plan		6		14
Dilutive potential common shares		10,404		13,527
Weighted average common shares-diluted		166,308		175,575
Net income per common share-basic	$	0.54	$	1.00
Net income per common share-diluted	$	0.50	$	0.92

(1) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price, multiplied by the number of warrant shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

(2) Incremental shares from assumed conversion of the convertible notes were calculated using the difference between the average Teradyne stock price for the period and the conversion price, multiplied by the number of convertible notes shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

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Retirement Plans (Tables)

3 Months Ended

Apr. 02, 2023

Defined Benefit Pension Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	April 2, 2023						April 3, 2022
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	272		$	109		$	397		$	206
Interest cost		1,711			262			1,222			118
Expected return on plan assets		(1,285	)		(9	)		(732	)		(20	)
Total net periodic pension cost	$	698		$	362		$	887		$	304

Postretirement Benefit Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Service cost	$	9		$	17
Interest cost		61			44
Amortization of prior service credit		(2	)		(2	)
Total net periodic postretirement benefit cost	$	68		$	59

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Segment Information (Tables)

3 Months Ended

Apr. 02, 2023

Segment Information

Segment information for the three months ended April 2, 2023 and April 3, 2022 is as follows:

	Semiconductor Test		System Test		Robotics			Wireless Test		Corporate and Eliminations			Consolidated
	(in thousands)
Three Months Ended April 2, 2023
Revenues	$	415,009	$	74,631	$	89,214		$	38,675	$	—		$	617,529
Income (loss) before income taxes (1)(2)		96,185		15,275		(18,490	)		9,352		(5,238	)		97,084
Total assets (3)		1,386,851		173,669		676,092			87,875		1,058,920			3,383,407
Three Months Ended April 3, 2022
Revenues	$	482,341	$	118,668	$	103,189		$	51,518	$	(346	)	$	755,370
Income (loss) before income taxes (1)(2)		149,705		41,322		(5,098	)		18,619		(24,189	)		180,359
Total assets (3)		1,296,070		187,283		675,560			113,821		1,336,420			3,609,154

(1) Included in Corporate and Eliminations are: interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

(2) Included in income (loss) before taxes are charges related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

Schedule of Segment Reporting Information by Segment Charges

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	April 2,		April 3,
	2023		2022
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,768	$	—
Restructuring and other—employee severance		794		—
System Test:
Cost of revenues—inventory charge	$	675		—
Robotics:
Cost of revenues—inventory charge	$	782	$	—
Wireless:
Cost of revenues—inventory charge	$	—	$	877
Corporate and Other:
Selling and administrative - equity modification charge	$	5,889	$	—
Restructuring and other—employee severance		659		—
Restructuring and other—legal settlement charge		—		14,700

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Revenue - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Deferred Revenue And Customer Advances	$ 50.7	$ 35.0
Trade Accounts Receivable	34.2	$ 19.4
Revenue, Remaining Performance Obligation, Amount	$ 1,240.7
Short-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation, Percentage	88.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	12 months
Long-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation, Percentage	12.00%
Long-term Contract with Customer [Member] | Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	3 years
Long-term Contract with Customer [Member] | Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	1 year

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Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Detail) - USD ($) $ in Thousands		3 Months Ended
		Apr. 02, 2023	Apr. 03, 2022
Disaggregation of Revenue [Line Items]
Total	[1]	$ 617,529	$ 755,370
Semiconductor Test
Disaggregation of Revenue [Line Items]
Total		415,009	482,341
System Test
Disaggregation of Revenue [Line Items]
Total	[1]	74,631	118,668
Robotics
Disaggregation of Revenue [Line Items]
Total		89,214	103,189
Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	38,675	51,518
Corporate and Eliminations
Disaggregation of Revenue [Line Items]
Total	[1]	0	(346)
Point in Time
Disaggregation of Revenue [Line Items]
Total	[1]	512,741	665,476
Point in Time | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	56,857	105,288
Point in Time | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	35,363	48,429
Point in Time | Corporate and Eliminations
Disaggregation of Revenue [Line Items]
Total	[1]	0	(346)
Over Time
Disaggregation of Revenue [Line Items]
Total	[1]	104,788	89,894
Over Time | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	17,774	13,380
Over Time | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	3,312	3,089
Asia Pacific
Disaggregation of Revenue [Line Items]
Total	[1]	424,494	563,835
Asia Pacific | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	39,590	73,784
Asia Pacific | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	23,231	34,946
Americas
Disaggregation of Revenue [Line Items]
Total	[1]	118,591	114,421
Americas | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	28,980	36,608
Americas | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	12,846	9,687
Americas | Corporate and Eliminations
Disaggregation of Revenue [Line Items]
Total	[1]	0	(346)
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total	[1]	74,444	77,114
Europe, Middle East and Africa | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	6,061	8,276
Europe, Middle East and Africa | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	2,598	6,885
SOC | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	346,834	386,585
SOC | Point in Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	273,275	323,456
SOC | Over Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	73,559	63,129
SOC | Asia Pacific | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	283,259	340,741
SOC | Americas | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	41,568	29,714
SOC | Europe, Middle East and Africa | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	22,007	16,130
Memory | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	68,175	95,756
Memory | Point in Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	61,258	88,723
Memory | Over Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	6,917	7,033
Memory | Asia Pacific | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	63,695	93,151
Memory | Americas | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	2,944	2,046
Memory | Europe, Middle East and Africa | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	1,536	559
Universal Robots (UR) | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	72,037	85,284
Universal Robots (UR) | Point in Time | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	70,029	83,182
Universal Robots (UR) | Over Time | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	2,008	2,102
Universal Robots (UR) | Asia Pacific | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	13,217	18,621
Universal Robots (UR) | Americas | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	20,447	28,148
Universal Robots (UR) | Europe, Middle East and Africa | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	38,373	38,515
MiR | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	17,177	17,905
MiR | Point in Time | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	15,959	16,744
MiR | Over Time | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	1,218	1,161
MiR | Asia Pacific | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	1,502	2,592
MiR | Americas | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	11,806	8,564
MiR | Europe, Middle East and Africa | Robotics
Disaggregation of Revenue [Line Items]
Total	[1]	$ 3,869	$ 6,749

[1] Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

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Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Accounting Policies [Abstract]
Revenue on leases	$ 1.3	$ 2.3

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Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022	Apr. 03, 2022	Dec. 31, 2021
Deferred Revenue Arrangement
Maintenance, service and training	$ 70,609	$ 78,089
Extended warranty	49,343	56,180	$ 65,726	$ 64,168
Customer advances, undelivered elements and other	41,200	59,147
Total deferred revenue and customer advances	$ 161,152	$ 193,416

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Composition of Inventories, Net (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw material	$ 264,035	$ 256,065
Work-in-process	43,987	37,982
Finished goods	44,036	30,972
Inventories, net	$ 352,058	$ 325,019

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Inventories - Additional Information (Detail) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Inventory [Line Items]
Inventory reserves	$ 138.6	$ 136.8

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Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 02, 2023	Apr. 03, 2022	Dec. 31, 2022
Financial Instruments and Fair Value [Line Items]
Available-for-sale securities, realized gain	$ 300	$ 400
Available-for-sale securities, realized loss	100	200
Fair market value of investments with unrealized losses greater than one year	55,000		$ 33,400
Fair market value of investments with unrealized losses less than one year	68,400		66,300
Unrealized Gain (loss) on contracts	400	4,300
Equity securities unrealized gain	2,000
Equity securities unrealized loss		2,200
Other comprehensive income (Loss), cash flow hedge, gain (loss), before reclassification, after tax	596	$ 0
Cash Flow Hedging [Member]
Financial Instruments and Fair Value [Line Items]
Other comprehensive income (Loss), cash flow hedge, gain (loss), before reclassification, after tax	900		3,200
Debt Mutual Funds
Financial Instruments and Fair Value [Line Items]
Available for sale securities with out contractual maturity date	6,800
Foreign Exchange Contracts
Financial Instruments and Fair Value [Line Items]
Unrealized Gain (loss) on contracts	$ 1,100		$ 900

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Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	$ 167,587	$ 112,871
U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	52,168	39,649
Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	51,369	50,856
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	47,548	7,159
U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	7,394	6,352
Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	6,800	6,580
Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	1,754	1,740
Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	554	535
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	859,041	1,005,162
Derivative assets		86
Total	859,041	1,005,248
Derivative liabilities	1,980	4,215
Total	1,980	4,215
Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	244,542	632,417
Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	404,666	222,356
Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	52,168	39,649
Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	51,369	50,856
Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	47,548	7,159
Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	7,394	6,352
Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	6,800	6,580
Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	1,754	1,740
Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	554	535
Fair Value, Measurements, Recurring | Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	42,246	37,518
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	545,962	838,282
Derivative assets		0
Total	545,962	838,282
Derivative liabilities	0	0
Total	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	244,542	632,417
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	252,374	161,767
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	6,800	6,580
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	42,246	37,518
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	313,079	166,880
Derivative assets		86
Total	313,079	166,966
Derivative liabilities	1,980	4,215
Total	1,980	4,215
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	152,292	60,589
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	52,168	39,649
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	51,369	50,856
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	47,548	7,159
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	7,394	6,352
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	1,754	1,740
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	554	535
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	0	0
Derivative assets		0
Total	0	0
Derivative liabilities	0	0
Total	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	$ 0	$ 0

XML

Schedule of Reported Financial Assets and Liabilities (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	$ 859,041	$ 1,005,248
Liabilities	1,980	4,215
Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	1,980	4,215
Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	649,208	854,773
Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	92,895	39,612
Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	116,938	110,777
Prepayments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets		86
Quoted Prices in Active Markets for Identical Instruments (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	545,962	838,282
Liabilities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	496,916	794,184
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	49,046	44,098
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Prepayments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets		0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	313,079	166,966
Liabilities	1,980	4,215
Significant Other Observable Inputs (Level 2) | Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	1,980	4,215
Significant Other Observable Inputs (Level 2) | Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	152,292	60,589
Significant Other Observable Inputs (Level 2) | Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	92,895	39,612
Significant Other Observable Inputs (Level 2) | Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	67,892	66,679
Significant Other Observable Inputs (Level 2) | Prepayments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets		86
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	0	0
Liabilities	0	0
Significant Unobservable Inputs (Level 3) | Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	0	0
Significant Unobservable Inputs (Level 3) | Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	0	0
Significant Unobservable Inputs (Level 3) | Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	0	0
Significant Unobservable Inputs (Level 3) | Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	$ 0	0
Significant Unobservable Inputs (Level 3) | Prepayments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets		$ 0

XML

Schedule of Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Marketable securities	$ 167,587	$ 112,871
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Cash and cash equivalents	649,208	854,773
Marketable securities	209,833	150,389
Derivative assets	0	86
Derivative liabilities	1,980	4,215
Convertible debt	$ 35,109	$ 50,115
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Deferred Tax and Other Liabilities, Noncurrent	Deferred Tax and Other Liabilities, Noncurrent
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Cash and cash equivalents	$ 649,208	$ 854,773
Marketable securities	209,833	150,389
Derivative assets	0	86
Derivative liabilities	1,980	4,215
Convertible debt	$ 119,586	$ 139,007
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Deferred Tax and Other Liabilities, Noncurrent	Deferred Tax and Other Liabilities, Noncurrent
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent

XML

Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 175,745	$ 123,839
Available-for-sale marketable securities, Unrealized Gain	425	73
Available-for-sale marketable securities, Unrealized (Loss)	(8,583)	(11,041)
Available-for-sale marketable securities, Fair Market Value	167,587	112,871
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	123,376	99,763
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	55,615	44,030
Available-for-sale marketable securities, Unrealized Gain	38
Available-for-sale marketable securities, Unrealized (Loss)	(3,485)	(4,381)
Available-for-sale marketable securities, Fair Market Value	52,168	39,649
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	49,669	39,649
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	56,040	57,006
Available-for-sale marketable securities, Unrealized Gain	41	3
Available-for-sale marketable securities, Unrealized (Loss)	(4,712)	(6,153)
Available-for-sale marketable securities, Fair Market Value	51,369	50,856
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	49,131	50,667
Commercial Paper
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	47,225	7,089
Available-for-sale marketable securities, Unrealized Gain	337	70
Available-for-sale marketable securities, Unrealized (Loss)	(14)
Available-for-sale marketable securities, Fair Market Value	47,548	7,159
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	16,845
U.S. Government Agency Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	7,427	6,442
Available-for-sale marketable securities, Unrealized Gain	9
Available-for-sale marketable securities, Unrealized (Loss)	(42)	(90)
Available-for-sale marketable securities, Fair Market Value	7,394	6,352
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	4,419	6,352
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	7,130	6,997
Available-for-sale marketable securities, Unrealized (Loss)	(330)	(417)
Available-for-sale marketable securities, Fair Market Value	6,800	6,580
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	3,312	3,095
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	1,754	1,740
Available-for-sale marketable securities, Fair Market Value	1,754	1,740
Non-U.S. Government Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	554	535
Available-for-sale marketable securities, Fair Market Value	$ 554	$ 535

XML

Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 175,745	$ 123,839
Available-for-sale marketable securities, Unrealized Gain	425	73
Available-for-sale marketable securities, Unrealized (Loss)	(8,583)	(11,041)
Available-for-sale marketable securities, Fair Market Value	167,587	112,871
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	123,376	99,763
Marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	92,915	39,950
Available-for-sale marketable securities, Unrealized Gain	337	70
Available-for-sale marketable securities, Unrealized (Loss)	(357)	(408)
Available-for-sale marketable securities, Fair Market Value	92,895	39,612
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	60,438	30,713
Long-term marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	82,830	83,889
Available-for-sale marketable securities, Unrealized Gain	88	3
Available-for-sale marketable securities, Unrealized (Loss)	(8,226)	(10,633)
Available-for-sale marketable securities, Fair Market Value	74,692	73,259
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 62,938	$ 69,050

XML

Contractual Maturities of Investments in Debt Securities Held (Detail) $ in Thousands	Apr. 02, 2023 USD ($)
Schedule of Available-for-sale Securities
Due within one year, cost	$ 92,915
Due after 1 year through 5 years, cost	31,721
Due after 5 years through 10 years, cost	5,022
Due after 10 years, cost	38,957
Total, cost	168,615
Due within one year, fair market value	92,895
Due after 1 year through 5 years, fair market value	30,672
Due after 5 years through 10 years, fair market value	4,612
Due after 10 years, fair maket value	32,608
Total, fair market value	$ 160,787

XML

Schedule of Notional Amount of Derivatives (Detail) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	$ (35.9)
Derivative Asset, Notional amounts		$ 2.9
Buy Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(100.3)	(73.9)
Sell Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	64.4	76.8
Japanese Yen
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(57.7)	(37.1)
Japanese Yen | Buy Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(57.7)	(37.1)
Taiwan Dollar
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(38.3)	(29.2)
Taiwan Dollar | Buy Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(38.3)	(29.2)
Korean Won
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(3.1)	(6.4)
Korean Won | Buy Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(3.1)	(6.4)
British Pound Sterling
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(1.2)	(1.2)
British Pound Sterling | Buy Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Liability, Notional amounts	(1.2)	(1.2)
Singapore Dollar
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	35.7	33.5
Singapore Dollar | Sell Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	35.7	33.5
Euro
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	24.3	38.4
Euro | Sell Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	24.3	38.4
Philippines, Pesos
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	2.5	2.7
Philippines, Pesos | Sell Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	2.5	2.7
China, Yuan Renminbi
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	1.9	2.2
China, Yuan Renminbi | Sell Position
Intercompany Foreign Currency Balance [Line Items]
Derivative Asset, Notional amounts	$ 1.9	$ 2.2

XML

Schedule Of Foreign Currency Cash Flow Hedges (Detail) - USD ($) $ in Millions	Apr. 02, 2023	Dec. 31, 2022
Derivative Asset, Notional amounts		$ 2.9
Derivative Liability, Notional amounts	$ (35.9)
Japan, Yen
Derivative Liability, Notional amounts	(57.7)	(37.1)
Taiwan, New Dollars
Derivative Liability, Notional amounts	(38.3)	(29.2)
Short [Member]
Derivative Asset, Notional amounts	64.4	76.8
Long [Member]
Derivative Liability, Notional amounts	(100.3)	(73.9)
Long [Member] | Japan, Yen
Derivative Liability, Notional amounts	(57.7)	(37.1)
Long [Member] | Taiwan, New Dollars
Derivative Liability, Notional amounts	(38.3)	(29.2)
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member]
Derivative, Notional Amount	16.6	43.2
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative, Notional Amount	16.6	37.8
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Taiwan, New Dollars
Derivative, Notional Amount	0.0	5.4
Foreign Exchange Forward [Member] | Short [Member] | Cash Flow Hedging [Member]
Derivative Asset, Notional amounts	30.2	72.1
Foreign Exchange Forward [Member] | Short [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative Asset, Notional amounts	30.2	61.2
Foreign Exchange Forward [Member] | Short [Member] | Cash Flow Hedging [Member] | Taiwan, New Dollars
Derivative Asset, Notional amounts	0.0	10.9
Foreign Exchange Forward [Member] | Long [Member] | Cash Flow Hedging [Member]
Derivative Liability, Notional amounts	(13.6)	(28.9)
Foreign Exchange Forward [Member] | Long [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative Liability, Notional amounts	(13.6)	(23.4)
Foreign Exchange Forward [Member] | Long [Member] | Cash Flow Hedging [Member] | Taiwan, New Dollars
Derivative Liability, Notional amounts	$ 0.0	$ (5.5)

XML

Schedule of Derivative Instruments in Statement of Financial Position at Fair Value (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), net	$ (1,980)	$ (4,129)
Not Designated as Hedging Instrument | Foreign currency forward contracts | Prepayments
Derivatives, Fair Value [Line Items]
Derivative assets	0	86
Not Designated as Hedging Instrument | Foreign currency forward contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	(1,057)	(990)
Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member] | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ (923)	$ (3,225)

XML

Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	$ 2,797	$ (1,752)
Other (income) expense, net | Not Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Losses (Gains) on derivatives recognized in statements of operations	1,259	(1,752)
Sales [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Option [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	$ 1,538	$ 0

XML

Debt - Additional Information (Detail) $ / shares in Units, $ in Thousands, shares in Millions		3 Months Ended
	Dec. 12, 2016 USD ($) Day $ / shares shares	Apr. 02, 2023 USD ($) $ / shares shares	Apr. 03, 2022 USD ($)	May 05, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 05, 2022 USD ($)	Jan. 01, 2022 USD ($)	May 01, 2020 USD ($)
Debt Instrument
Repurchase of common stock		$ 93,308	$ 201,465
Trading days measurement period | Day	5
Debt issuance costs, amortization period		7 years
Line of Credit Facility, Maximum Borrowing Capacity						$ 750,000		$ 400,000
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases		$ 200,000
Line of Credit Facility, Interest Rate Description		The interest rate applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.00% to 0.75% per annum or SOFR plus a margin ranging from 1.10% to 1.85% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.15% to 0.25% per annum, based on the then applicable consolidated leverage ratio.
Term of revolving credit facility								3 years
Expected principal interest payments in next 12 months		$ 400
Available Incremental Amount Under The Credit Facility Not To Exceed Percentage Of Consolidated EBIDTA		15.00%
Current debt, Conversion		$ 35,109			$ 50,115
Retained earnings		694,145			$ 725,729
Convertible Common Shares [Member]
Debt Instrument
Mezzanine equity		$ 2,300
Subsequent Event
Debt Instrument
Long-Term Debt				$ 427,200
Collateral Pledged [Member]
Debt Instrument
Line of Credit Facility, Interest Rate Description		65
1.25% Convertible Senior Unsecured Notes Due December 15, 2023
Debt Instrument
Aggregate principal amount	$ 460,000	$ 460,000
Debt instrument, interest rate, stated percentage	1.25%
Debt instrument, net proceeds after issuance costs	$ 450,800
Payment for net cost of convertible note hedges net of warrant proceeds	33,000	$ 33,000
Repurchase of common stock	$ 50,100
Repurchase of stock, shares | shares	2.0
Senior notes maturity date	Dec. 15, 2023
Debt instrument, frequency of periodic payment	payable semiannually in arrears on June 15 and December 15 of each year
Debt instrument, date of first required payment	Mar. 31, 2017
Debt instrument, conversion option expiration date	Sep. 15, 2023
Consecutive trading days measurement period | Day	5
Debt instrument conversion price | $ / shares	$ 31.44	$ 31.44
Shares that would be issued upon conversion | shares		14.6
Strike price per share of warrant | $ / shares		$ 39.46
Debt instrument, convertible, carrying amount of equity component		$ 100,800
Value of notes converted		$ 120,000
1.25% Convertible Senior Unsecured Notes Due December 15, 2023 | Conversion option one
Debt Instrument
Trading days measurement period | Day	20
Consecutive trading days measurement period | Day	30
Percentage of conversion price	130.00%
1.25% Convertible Senior Unsecured Notes Due December 15, 2023 | Conversion option two
Debt Instrument
Aggregate principal amount	$ 1,000
Percentage of closing sale price of common stock and conversion rate product	98.00%
Revolving Credit Facility | Maximum | Truist Bank [Member]
Debt Instrument
Commitment fee percentage of unused portion of credit facility		0.25%
Revolving Credit Facility | Minimum | Truist Bank [Member]
Debt Instrument
Commitment fee percentage of unused portion of credit facility		0.15%
Revolving Credit Facility | Base Rate | Maximum | Truist Bank [Member]
Debt Instrument
Debt instrument, basis spread on variable rate		0.75%
Revolving Credit Facility | Base Rate | Minimum | Truist Bank [Member]
Debt Instrument
Debt instrument, basis spread on variable rate		0.00%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum | Truist Bank [Member]
Debt Instrument
Debt instrument, basis spread on variable rate		1.85%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum | Truist Bank [Member]
Debt Instrument
Debt instrument, basis spread on variable rate		1.10%
Teradyne [Member]
Debt Instrument
Mezzanine equity							$ 100,800
Current debt, Conversion							1,400
Debt							6,600
Retained earnings							94,600
Teradyne [Member] | Accounting Standards Update 2020-06 [Member]
Debt Instrument
Deferred Tax Assets, Other							1,800
Teradyne [Member] | Accounting Standards Update 2020-06 [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Debt Instrument
Mezzanine equity							$ 0

XML

Components of Convertible Senior Notes (Detail) - Convertible Senior Notes [Member] - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Debt Instrument
Debt principal	$ 35,109	$ 50,228
Unamortized debt issuance fees	0	113
Net carrying amount of convertible debt	$ 35,109	$ 50,115

XML

Interest Expense on Convertible Senior Notes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Debt Instrument
Contractual interest expense on the coupon	$ 138	$ 311
Amortization of the issue fees recognized as interest expense	113	66
Total interest expense on the convertible debt	$ 251	$ 377

XML

Schedule of Prepayments and Other Current Assets (Detail) - USD ($) $ in Thousands	Apr. 02, 2023	Dec. 31, 2022
Prepaid And Other Current Assets [Line Items]
Contract manufacturer and supplier prepayments	$ 494,849	$ 491,105
Prepaid taxes	22,677	18,625
Prepaid maintenance and other services	16,591	14,545
Other prepayments	14,997	8,687
Total prepayments	$ 549,114	$ 532,962

XML

Warranty Accrual Included in Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Product Warranty Liability [Line Items]
Balance at beginning of period	$ 14,181	$ 24,577
Accruals for warranties issued during the period	4,117	4,100
Accruals related to pre-existing warranties	(405)	(2,758)
Settlements made during the period	(4,992)	(5,814)
Balance at end of period	$ 12,901	$ 20,105

XML

Extended Product Warranty of Short and Long-Term Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Product Warranty Liability [Line Items]
Balance at beginning of period	$ 56,180	$ 64,168
Deferral of new extended warranty revenue	4,413	11,774
Recognition of extended warranty deferred revenue	(11,250)	(10,216)
Balance at end of period	$ 49,343	$ 65,726

XML

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Total shareholder return performance measurement period	3 years
Stock price	$ 103.44	$ 112.12
Retirement Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Stock Based Compensation Relating To Retirement Agreement	$ 5.9
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of common stock price paid	100.00%
Stock Options | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments	7 years
Stock Options | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share	$ 0.44	0.44
Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments	4 years
Percentage of awards vesting on the first anniversary of grant date	100.00%
Restricted Stock Units | Director
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments	1 year
TSR Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Total shareholder return performance measurement period	3 years
Minimum years of service for retirement to be eligible for PRSUs	10 years
Restricted stock unit awards granted	0.1
Weighted average grant date fair value of restricted stock units granted	$ 137.64	101.06
Stock price	103.44	112.12
TSR Performance-Based Restricted Stock Units | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share	$ 0.44	0.44
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved	0.00%
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved	200.00%
Employee Stock Purchase Plan | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal installments	4 years
PBIT Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.1
Weighted average grant date fair value of restricted stock units granted	$ 102.23	$ 110.84
Service-Based Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.5	0.4
Weighted average grant date fair value of restricted stock units granted	$ 102.36	$ 111.31
Service-Based Restricted Stock Units | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.1
Service Based Stock Options | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Weighted average grant date fair value of restricted stock units granted	$ 40.9	$ 39.01

XML

Schedule of Estimated Fair Value of TSR Performance-Based Restricted Stock Unit Awards Assumptions (Detail) - TSR Performance-Based Restricted Stock Units	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Risk-free interest rate	3.90%	1.40%
Expected historical volatility	50.20%	47.10%
Dividend yield	0.40%	0.40%
New York Stock Exchange Composite Index
Share-based Compensation Arrangement by Share-based Payment Award
Expected historical volatility	24.80%	22.70%

XML

Schedule of Estimated Fair Value of Stock Options Grant Using Black Scholes Option Pricing Model (Detail) - Stock Options	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Expected life (years)	4 years	4 years
Risk-free interest rate	3.70%	1.60%
Volatility-historical	46.70%	43.70%
Dividend yield	0.40%	0.40%

XML

Changes in Accumulated Other Comprehensive Income (loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 2,451,294	$ 2,562,444
Other comprehensive income (loss)	13,402	(13,531)
Balance	2,449,462	2,474,532
Foreign Currency Translation Reclassification Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(39,849)	(10,818)
Other comprehensive loss before reclassifications, net of tax	9,309	(8,076)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Other comprehensive income (loss)	9,309	(8,076)
Balance	(30,540)	(18,894)
Unrealized (Losses) Gains on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(8,661)	3,704
Other comprehensive loss before reclassifications, net of tax	2,294	(5,388)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	5	(65)
Other comprehensive income (loss)	2,299	(5,453)
Balance	(6,362)	(1,749)
Unrealized (Losses) Gains on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(2,517)	0
Other comprehensive loss before reclassifications, net of tax	596	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	1,200	0
Other comprehensive income (loss)	1,796	0
Balance	(721)	0
Retirement Plans Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	1,159	1,166
Other comprehensive loss before reclassifications, net of tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2)	(2)
Other comprehensive income (loss)	(2)	(2)
Balance	1,157	1,164
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(49,868)	(5,948)
Other comprehensive loss before reclassifications, net of tax	12,199	(13,464)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	1,203	(67)
Other comprehensive income (loss)	13,402	(13,531)
Balance	$ (36,466)	$ (19,479)

XML

Changes in Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss), tax	$ 340	$ (18)
Foreign currency translation adjustments, tax	0	0	$ 0	$ 0
Unrealized (losses) gains on marketable securities, tax	(1,803)	(296)	(2,308)	1,055
Unrealized (Losses) Gains on Cash Flow Hedges	(203)	0	(708)	0
Retirement plans prior service benefit, tax	(1,130)	(1,128)	$ (1,130)	$ (1,128)
Foreign Currency Translation Reclassification Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	0	0
Other comprehensive income (loss), tax	0	0
Unrealized (Losses) Gains on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	503	(1,333)
Amounts reclassified from accumulated other comprehensive income (loss), tax	2	(18)
Other comprehensive income (loss), tax	505	(1,351)
Unrealized (Losses) Gains on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	167	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	338	0
Other comprehensive income (loss), tax	505	0
Retirement Plans Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	0	0
Other comprehensive income (loss), tax	$ 0	$ 0

XML

Reclassifications Out of Accumulated Other Comprehensive Income (Loss) to Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income (expense)	$ (5)	$ 65
Unrealized losses, net of tax of $(338) and $0, respectively	(1,200)	0
Unrealized Gains on Marketable Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income (expense)	(5)	65
Reclassifications, net of tax	(5)	65
Amortization of Prior Service Credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax	2	2
Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax	$ (1,203)	$ 67

XML

Reclassifications Out of Accumulated Other Comprehensive Income (Loss) to Statements of Operations (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	$ (338)	$ 0
Reclassifications, tax	(340)	18
Unrealized (Losses) Gains on Marketable Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, tax	(2)	18
Amortization of Prior Service Credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, tax	$ 0	$ 0

XML

Goodwill and Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets amortization	$ 4,802	$ 5,063

XML

Changes in Carrying Amount of Goodwill by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Apr. 02, 2023
Goodwill [Line Items]
Goodwill	$ 1,165,761	$ 1,172,394
Accumulated impairment losses	(762,566)	(762,566)
Foreign currency translation adjustment	6,633
Total Goodwill	403,195	409,828
Robotics
Goodwill [Line Items]
Goodwill	383,166	389,775
Foreign currency translation adjustment	6,609
Total Goodwill	383,166	389,775
Wireless Test
Goodwill [Line Items]
Goodwill	361,819	361,819
Accumulated impairment losses	(353,843)	(353,843)
Foreign currency translation adjustment	0
Total Goodwill	7,976	7,976
Semiconductor Test
Goodwill [Line Items]
Goodwill	262,077	262,101
Accumulated impairment losses	(260,540)	(260,540)
Foreign currency translation adjustment	24
Total Goodwill	1,537	1,561
System Test
Goodwill [Line Items]
Goodwill	158,699	158,699
Accumulated impairment losses	(148,183)	(148,183)
Foreign currency translation adjustment	0
Total Goodwill	$ 10,516	$ 10,516

XML

Schedule of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 02, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 388,093	$ 388,093
Accumulated Amortization	(332,126)	(327,324)
Foreign Currency Translation Adjustment	(6,721)	(7,291)
Net Carrying Amount	49,246	53,478
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount	270,967	270,967
Accumulated Amortization	(237,269)	(234,208)
Foreign Currency Translation Adjustment	(5,560)	(5,935)
Net Carrying Amount	28,138	30,824
Customer Relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	57,739	57,739
Accumulated Amortization	(51,756)	(51,186)
Foreign Currency Translation Adjustment	184	172
Net Carrying Amount	6,167	6,725
Trademarks and tradenames
Finite-Lived Intangible Assets
Gross Carrying Amount	59,387	59,387
Accumulated Amortization	(43,101)	(41,930)
Foreign Currency Translation Adjustment	(1,345)	(1,528)
Net Carrying Amount	$ 14,941	$ 15,929

XML

Schedule of Estimated Intangible Asset Amortization Expense (Detail) $ in Thousands	Apr. 02, 2023 USD ($)
Finite-Lived Intangible Assets
2023	$ 14,219
2024	18,749
2025	11,320
2026	2,371
2027	1,155
Thereafter	$ 1,432

XML

Net Income Per Common Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Employee Stock Option [Member]
Net Income Loss Per Common Share
Exercise of stock options	0.5
Restricted Stock Units (RSUs) [Member]
Net Income Loss Per Common Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		0.1

XML

Computation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Apr. 02, 2023	Apr. 03, 2022
Net Income Loss Per Common Share
Net income for basic and diluted net income per share		$ 83,531	$ 161,928
Weighted average common shares-basic		155,904	162,048
Convertible note hedge warrant shares	[1]	8,983	10,028
Incremental shares from assumed conversion of convertible notes	[2]	914	2,541
Employee stock purchase rights		6	14
Dilutive potential common shares		10,404	13,527
Weighted average common shares-diluted		166,308	175,575
Net income per common share-basic		$ 0.54	$ 1
Net income per common share-diluted		$ 0.5	$ 0.92
Restricted Stock Units
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements		453	875
Stock Options
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements		48	69

[1] Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price, multiplied by the number of warrant shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

[2] Incremental shares from assumed conversion of the convertible notes were calculated using the difference between the average Teradyne stock price for the period and the conversion price, multiplied by the number of convertible notes shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

XML

Restructuring and Other - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended
	Mar. 25, 2022	Apr. 02, 2023	Apr. 03, 2022
Restructuring Cost and Reserve
Severance benefit and charges		$ 2.0
Settled Litigation [Member]
Restructuring Cost and Reserve
Legal settlement charges			$ 14.7
TER Corporate And Eliminations | TER Dispute In Respect Of Contingent Consideration [Member]
Restructuring Cost and Reserve
Litigation Settlement, Amount settled between parties	$ 26.7

XML

Retirement Plans - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
U.S. Supplemental Executive Defined Benefit Pension Plan
Defined Benefit Plan Disclosure
Contribution to defined benefit pension plans	$ 800	$ 800
Non-United States Subsidiaries
Defined Benefit Plan Disclosure
Contribution to defined benefit pension plans in 2018	$ 200	$ 300

XML

Schedule of Net Periodic Pension and Postretirement (income) Cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
UNITED STATES
Defined Benefit Plan Disclosure
Service cost	$ 272	$ 397
Interest cost	1,711	1,222
Expected return on plan assets	(1,285)	(732)
Total net periodic postretirement benefit cost	698	887
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure
Service cost	109	206
Interest cost	262	118
Expected return on plan assets	(9)	(20)
Total net periodic postretirement benefit cost	362	304
Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Service cost	9	17
Interest cost	61	44
Amortization of prior service credit	(2)	(2)
Total net periodic postretirement benefit cost	$ 68	$ 59

XML

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 08, 2021	Mar. 31, 2022	Apr. 02, 2023	Dec. 31, 2022
Purchase Commitment, Excluding Long-term Commitment
Aggregate purchase commitments			$ 589.7
Purchase commitments less than one year			530.7
Product warranty accrual			12.9	$ 14.2
Revenue deferrals related to extended warranties			$ 49.3	$ 56.2
Auto Guide Llc [Member] | Dispute In Respect Of Contingent Consideration [Member]
Purchase Commitment, Excluding Long-term Commitment
Legal claims, damage sought by party	$ 106.9
Litigation Settlement, Amount settled between parties		$ 26.7

XML

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended
	Aug. 16, 2022	Apr. 02, 2023	Apr. 03, 2022	Dec. 31, 2022
Income Taxes [Line Items]
Accrued interest and penalties		$ 0.4		$ 0.4
Interest and penalties related to income tax, expense (benefit)		0.1	$ 0.1
Uncertain tax positions		15.7		$ 15.6
Net increase in uncertain tax positions		$ 0.1
Percentage of alternative minimum tax	15.00%

XML

Schedule of Reconciliation of Effective Tax Rate (Detail)	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Income Tax Disclosure [Line Items]
U.S. statutory federal tax rate	21.00%	21.00%
Non-deductible officers' compensation	0.90%	1.10%
Discrete benefit related to equity compensation	(3.30%)	(6.60%)
International provisions of the U.S. Tax Cuts and Jobs Act of 2017	(3.20%)	(1.30%)
Tax credits	(2.50%)	(1.60%)
Foreign taxes	(0.60%)	(3.40%)
Other, net	1.70%	1.00%
Effective tax rate, Total	14.00%	10.20%

XML

Segment Information - Additional Information (Detail)	3 Months Ended
	Apr. 02, 2023 Segment
Segment Reporting Information [Line Items]
Operating segments	4

XML

Schedule of Segment Information (Detail) - USD ($) $ in Thousands		3 Months Ended
		Apr. 02, 2023		Apr. 03, 2022		Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenues	[1]	$ 617,529		$ 755,370
Income (loss) before income taxes	[2],[3]	97,084		180,359
Total assets		3,383,407	[4]	3,609,154	[4]	$ 3,501,252
Semiconductor Test
Segment Reporting Information [Line Items]
Revenues		415,009		482,341
Income (loss) before income taxes	[2],[3]	96,185		149,705
Total assets	[4]	1,386,851		1,296,070
System Test
Segment Reporting Information [Line Items]
Revenues	[1]	74,631		118,668
Income (loss) before income taxes	[2],[3]	15,275		41,322
Total assets	[4]	173,669		187,283
Robotics
Segment Reporting Information [Line Items]
Revenues		89,214		103,189
Income (loss) before income taxes	[2],[3]	(18,490)		(5,098)
Total assets	[4]	676,092		675,560
Wireless Test
Segment Reporting Information [Line Items]
Revenues	[1]	38,675		51,518
Income (loss) before income taxes	[2],[3]	9,352		18,619
Total assets	[4]	87,875		113,821
Corporate and Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues		0		(346)
Income (loss) before income taxes	[2],[3]	(5,238)		(24,189)
Total assets	[4]	$ 1,058,920		$ 1,336,420

[1] Includes $1.3 million and $2.3 million in 2023 and 2022, respectively, for leases of Teradyne’s systems recognized outside Accounting Standards Codification (“ASC”) 606 “Revenue from Contracts with Customers.”

[2] Included in Corporate and Eliminations are: interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations, legal and environmental fees, severance charges, acquisition related charges and compensation and an expense for the modification of Teradyne’s former chief executive officer’s outstanding equity awards.

[3] Included in income (loss) before taxes are charges related to restructuring and other, and inventory charges.

[4] Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities, and certain other assets.

XML

Schedule of Segment Reporting Information by Segment Charges (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022
Segment Reporting Information [Line Items]
Restructuring and other—employee severance	$ 2,037	$ 15,714
Semiconductor Test
Segment Reporting Information [Line Items]
Cost of revenues—inventory charge	3,768	0
Restructuring and other—employee severance	794	0
System Test
Segment Reporting Information [Line Items]
Cost of revenues—inventory charge	675	0
Robotics
Segment Reporting Information [Line Items]
Cost of revenues—inventory charge	782	0
Restructuring and other—employee severance	659	0
Wireless Test
Segment Reporting Information [Line Items]
Cost of revenues—inventory charge	0	877
Corporate and Other | Selling and administrative—equity modification charge
Segment Reporting Information [Line Items]
Selling and administrative—equity modification charge	5,889	0
Corporate and Other | Restructuring and other
Segment Reporting Information [Line Items]
Restructuring and other—employee severance	$ 0	$ 14,700

XML

Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions		3 Months Ended
	Jan. 01, 2023	Apr. 02, 2023	Apr. 03, 2022	Jan. 31, 2023
Common stock average price		$ 104.88	$ 115.12
Dividends Payable, Amount Per Share				$ 0.11
Dividend payment		$ 17,165	$ 17,895
Percentage of excise tax on share repurchases in excess of issuances	1.00%
Cumulative repurchases, shares		0.9	1.8
Cumulative repurchases, value	$ 500,000	$ 93,700	$ 201,500	$ 2,000,000