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Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2024
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 March 31, 2024 and December 31, 2023.
|  | March 31, 2024 |
|  | 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 |  | $ | 278,229 |  |  | $ | — |  |  | $ | — |  |  | $ | 278,229 |
Cash equivalents |  |  | 428,675 |  |  |  | 499 |  |  |  | — |  |  |  | 429,174 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  |  | — |  |  |  | 40,068 |  |  |  | — |  |  |  | 40,068 |
Corporate debt securities |  |  | — |  |  |  | 35,845 |  |  |  | — |  |  |  | 35,845 |
Certificates of deposit and time deposits |  |  | — |  |  |  | 21,706 |  |  |  | — |  |  |  | 21,706 |
Debt mutual funds |  |  | 10,007 |  |  |  | — |  |  |  | — |  |  |  | 10,007 |
U.S. government agency securities |  |  | — |  |  |  | 3,863 |  |  |  | — |  |  |  | 3,863 |
Commercial paper |  |  | — |  |  |  | 1,689 |  |  |  | — |  |  |  | 1,689 |
Non-U.S. government securities |  |  | — |  |  |  | 798 |  |  |  | — |  |  |  | 798 |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  |  | 49,229 |  |  |  | — |  |  |  | — |  |  |  | 49,229 |
|  | $ | 766,140 |  |  | $ | 104,468 |  |  | $ | — |  |  | $ | 870,608 |
Derivative assets |  |  | — |  |  |  | 4,251 |  |  |  | — |  |  |  | 4,251 |
Total |  | $ | 766,140 |  |  | $ | 108,719 |  |  | $ | — |  |  | $ | 874,859 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities |  |  | — |  |  |  | 936 |  |  |  | — |  |  | $ | 936 |
Total |  | $ | — |  |  | $ | 936 |  |  | $ | — |  |  | $ | 936 |
Reported as follows: |  |  |  |  |  |  |  |  |  |  |  |
|  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |  |  | Total |
|  | (in thousands) |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 706,904 |  |  | $ | 499 |  |  | $ | — |  |  | $ | 707,403 |
Marketable securities |  |  | — |  |  |  | 41,300 |  |  |  | — |  |  |  | 41,300 |
Long-term marketable securities |  |  | 59,236 |  |  |  | 62,669 |  |  |  | — |  |  |  | 121,905 |
Prepayments |  |  | — |  |  |  | 4,251 |  |  |  | — |  |  |  | 4,251 |
Total |  | $ | 766,140 |  |  | $ | 108,719 |  |  | $ | — |  |  | $ | 874,859 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Other current liabilities |  | $ | — |  |  | $ | 936 |  |  | $ | — |  |  | $ | 936 |
Total |  | $ | — |  |  | $ | 936 |  |  | $ | — |  |  | $ | 936 |
|  | December 31, 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 |  | $ | 298,156 |  |  | $ | — |  |  | $ | — |  |  | $ | 298,156 |
Cash equivalents |  |  | 453,298 |  |  |  | 6,117 |  |  |  | — |  |  |  | 459,415 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  |  | — |  |  |  | 52,734 |  |  |  | — |  |  |  | 52,734 |
U.S. Treasury securities |  |  | — |  |  |  | 41,808 |  |  |  | — |  |  |  | 41,808 |
Certificates of deposit and time deposits |  |  | — |  |  |  | 21,772 |  |  |  | — |  |  |  | 21,772 |
Debt mutual funds |  |  | 8,773 |  |  |  | — |  |  |  | — |  |  |  | 8,773 |
U.S. government agency securities |  |  | — |  |  |  | 4,892 |  |  |  | — |  |  |  | 4,892 |
Commercial paper |  |  | — |  |  |  | 1,667 |  |  |  | — |  |  |  | 1,667 |
Non-U.S. government securities |  |  | — |  |  |  | 810 |  |  |  | — |  |  |  | 810 |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |
Mutual Funds |  |  | 47,132 |  |  |  | — |  |  |  | — |  |  |  | 47,132 |
|  | $ | 807,359 |  |  | $ | 129,800 |  |  | $ | — |  |  | $ | 937,159 |
Derivative assets |  |  | — |  |  |  | 18,746 |  |  |  | — |  |  |  | 18,746 |
Total |  | $ | 807,359 |  |  | $ | 148,546 |  |  | $ | — |  |  | $ | 955,905 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities |  |  | — |  |  |  | 2,545 |  |  |  | — |  |  |  | 2,545 |
Total |  | $ | — |  |  | $ | 2,545 |  |  | $ | — |  |  | $ | 2,545 |
Reported as follows: |  |  |  |  |  |  |  |  |  |  |  |
|  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |  |  | Total |
|  | (in thousands) |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 751,454 |  |  | $ | 6,117 |  |  | $ | — |  |  | $ | 757,571 |
Marketable securities |  |  | — |  |  |  | 62,154 |  |  |  | — |  |  |  | 62,154 |
Long-term marketable securities |  |  | 55,905 |  |  |  | 61,529 |  |  |  | — |  |  |  | 117,434 |
Prepayments |  |  | — |  |  |  | 18,746 |  |  |  | — |  |  |  | 18,746 |
Total |  | $ | 807,359 |  |  | $ | 148,546 |  |  | $ | — |  |  | $ | 955,905 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Other current liabilities |  | $ | — |  |  | $ | 2,545 |  |  | $ | — |  |  | $ | 2,545 |
Total |  | $ | — |  |  | $ | 2,545 |  |  | $ | — |  |  | $ | 2,545 |
Schedule of Carrying Amounts and Fair Values of Financial Instruments | The carrying amounts and fair values of Teradyne’s financial instruments at March 31, 2024 and December 31, 2023, were as follows:
|  | March 31, 2024 |  |  | December 31, 2023 |
|  | Carrying Value |  |  | Fair Value |  |  | Carrying Value |  |  | Fair Value |
|  | (in thousands) |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 707,403 |  |  | $ | 707,403 |  |  | $ | 757,571 |  |  | $ | 757,571 |
Marketable securities |  |  | 163,205 |  |  |  | 163,205 |  |  |  | 179,588 |  |  |  | 179,588 |
Derivative assets |  |  | 4,251 |  |  |  | 4,251 |  |  |  | 18,746 |  |  |  | 18,746 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities |  |  | 936 |  |  |  | 936 |  |  |  | 2,545 |  |  |  | 2,545 |
Schedule of Available-for-Sale Marketable Securities | The following table summarizes the composition of available-for-sale marketable securities at March 31, 2024:
|  | March 31, 2024 |
|  | Available-for-Sale |
|  | Cost |  |  | Unrealized Gain |  |  | Unrealized (Loss) |  |  | Fair Market Value |  |  | Fair Market Value of Investments with Unrealized Losses |
|  | (in thousands) |
Corporate debt securities |  | $ | 39,946 |  |  | $ | 89 |  |  | $ | (4,190 | ) |  | $ | 35,845 |  |  | $ | 31,461 |
U.S. Treasury securities |  |  | 44,519 |  |  |  | 1 |  |  |  | (4,452 | ) |  |  | 40,068 |  |  |  | 38,914 |
Certificates of deposit and time deposits |  |  | 21,706 |  |  |  | — |  |  |  | — |  |  |  | 21,706 |  |  |  | — |
Debt mutual funds |  |  | 10,363 |  |  |  | — |  |  |  | (356 | ) |  |  | 10,007 |  |  |  | 3,303 |
U.S. government agency securities |  |  | 3,883 |  |  |  | — |  |  |  | (20 | ) |  |  | 3,863 |  |  |  | 3,863 |
Commercial paper |  |  | 1,670 |  |  |  | 19 |  |  |  | — |  |  |  | 1,689 |  |  |  | — |
Non-U.S. government securities |  |  | 798 |  |  |  | — |  |  |  | — |  |  |  | 798 |  |  |  | — |
|  | $ | 122,885 |  |  | $ | 109 |  |  | $ | (9,018 | ) |  | $ | 113,976 |  |  | $ | 77,541 |
Reported as follows:
|  | Cost |  |  | Unrealized Gain |  |  | Unrealized (Loss) |  |  | Fair Market Value |  |  | Fair Market Value of Investments with Unrealized Losses |
|  | (in thousands) |
Marketable securities |  | $ | 41,308 |  |  | $ | 19 |  |  | $ | (27 | ) |  | $ | 41,300 |  |  | $ | 17,657 |
Long-term marketable securities |  |  | 81,577 |  |  |  | 90 |  |  |  | (8,991 | ) |  |  | 72,676 |  |  |  | 59,884 |
|  | $ | 122,885 |  |  | $ | 109 |  |  | $ | (9,018 | ) |  | $ | 113,976 |  |  | $ | 77,541 |
The following table summarizes the composition of available-for-sale marketable securities at December 31, 2023:
|  | December 31, 2023 |
|  | Available-for-Sale |
|  | Cost |  |  | Unrealized Gain |  |  | Unrealized (Loss) |  |  | Fair Market Value |  |  | Fair Market Value of Investments with Unrealized Losses |
|  | (in thousands) |
Corporate debt securities |  | $ | 56,458 |  |  | $ | 201 |  |  | $ | (3,925 | ) |  | $ | 52,734 |  |  | $ | 44,263 |
U.S. Treasury securities |  |  | 45,725 |  |  |  | 14 |  |  |  | (3,931 | ) |  |  | 41,808 |  |  |  | 35,080 |
Certificates of deposit and time deposits |  |  | 21,772 |  |  |  | — |  |  |  | — |  |  |  | 21,772 |  |  |  | — |
Debt mutual funds |  |  | 9,081 |  |  |  | — |  |  |  | (308 | ) |  |  | 8,773 |  |  |  | 3,303 |
U.S. government agency securities |  |  | 4,898 |  |  |  | — |  |  |  | (6 | ) |  |  | 4,892 |  |  |  | 4,892 |
Commercial paper |  |  | 1,633 |  |  |  | 34 |  |  |  | — |  |  |  | 1,667 |  |  |  | — |
Non-U.S. government securities |  |  | 810 |  |  |  | — |  |  |  | — |  |  |  | 810 |  |  |  | — |
|  | $ | 140,377 |  |  | $ | 249 |  |  | $ | (8,170 | ) |  | $ | 132,456 |  |  | $ | 87,538 |
Reported as follows:
|  | Cost |  |  | Unrealized Gain |  |  | Unrealized (Loss) |  |  | Fair Market Value |  |  | Fair Market Value of Investments with Unrealized Losses |
|  | (in thousands) |
Marketable securities |  | $ | 62,385 |  |  | $ | 36 |  |  | $ | (267 | ) |  |  | 62,154 |  |  | $ | 34,844 |
Long-term marketable securities |  |  | 77,992 |  |  |  | 213 |  |  |  | (7,903 | ) |  |  | 70,302 |  |  |  | 52,694 |
|  | $ | 140,377 |  |  | $ | 249 |  |  | $ | (8,170 | ) |  | $ | 132,456 |  |  | $ | 87,538 |
Contractual Maturities of Investments Held | The contractual maturities of investments in available-for-sale securities held at March 31, 2024, were as follows:
|  | March 31, 2024 |
|  | Cost |  |  | Fair Market Value |
|  | (in thousands) |
Due within one year |  | $ | 41,308 |  |  | $ | 41,300 |
Due after 1 year through 5 years |  |  | 26,360 |  |  |  | 25,819 |
Due after 5 years through 10 years |  |  | 7,760 |  |  |  | 7,405 |
Due after 10 years |  |  | 37,094 |  |  |  | 29,445 |
Total |  | $ | 112,522 |  |  | $ | 103,969 |
Schedule of Notional Amount of Derivatives | At March 31, 2024 and December 31, 2023, 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:
|  | Net Notional Value |
|  | March 31, 2024 |  |  | December 31, 2023 |
|  | (in millions) |
Currency Hedged (Buy/Sell) |  |  |  |  |  |
U.S. dollar/Japanese yen |  | $ | 57.5 |  |  | $ | 11.0 |
U.S. dollar/Danish krone |  |  | 28.4 |  |  |  | 36.0 |
U.S. dollar/Taiwan dollar |  |  | 20.1 |  |  |  | 42.7 |
U.S. dollar/Korean won |  |  | 6.6 |  |  |  | 7.2 |
U.S. dollar/British pound sterling |  |  | 1.0 |  |  |  | 1.5 |
Euro/U.S. dollar |  |  | 25.8 |  |  |  | 25.3 |
Singapore dollar/U.S. dollar |  |  | 17.6 |  |  |  | 16.6 |
Philippine peso/U.S. dollar |  |  | 9.9 |  |  |  | 10.1 |
Chinese yuan/U.S. dollar |  |  | 0.6 |  |  |  | 1.0 |
Danish krone/U.S. dollar |  |  | 0.6 |  |  |  | 0.7 |
Total |  | $ | 168.1 |  |  | $ | 152.1 |
Schedule of Foreign Currency Cash Flow Hedges | At March 31, 2024 and December 31, 2023, 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:
|  | Net Notional Value |
|  | March 31, 2024 |  |  | December 31, 2023 |
|  | (in millions) |
Currency Hedged (Buy/Sell) |  |  |  |  |  |
U.S. dollar/Japanese yen |  | $ | — |  |  | $ | 35.5 |
Total |  | $ | — |  |  | $ | 35.5 |
Schedule of Derivative Instruments in Statement of Financial Position at Fair Value | The following table summarizes the fair value of derivative instruments as of March 31, 2024 and December 31, 2023:
|  | Balance Sheet Location |  | March 31, 2024 |  |  | December 31, 2023 |
|  |  |  | (in thousands) |
Derivatives not designated as hedging instruments: |
Foreign exchange forward contracts |  | Other current assets |  | $ | 805 |  |  | $ | 733 |
Foreign exchange option contracts |  | Other current assets |  |  | 3,446 |  |  |  | 17,364 |
Foreign exchange forward contracts |  | Other current liabilities |  |  | (936 | ) |  |  | (2,545 | )
Derivatives designated as hedging instruments: |
Foreign exchange forward contracts |  | Other current assets |  |  | — |  |  |  | 648 |
Total derivatives |  |  |  | $ | 3,315 |  |  | $ | 16,200 |
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 March 31, 2024 and April 2, 2023:
|  |  |  | For the Three Months Ended |
|  | Location of (Gains) Losses Recognized in Statement of Operations |  | March 31, 2024 |  |  | April 2, 2023 |
|  |  |  | (in thousands) |
Derivatives not designated as hedging instruments: |
Foreign exchange forward contracts (1) |  | Other (income) expense, net |  | $ | (1,699 | ) |  | $ | 1,259 |
Foreign exchange option contracts |  | Other (income) expense, net |  |  | 13,918 |  |  |  | — |
Derivatives designated as hedging instruments: |
Foreign exchange forward and option contracts |  | Revenue |  |  | (2,280 | ) |  |  | 1,538 |
Total Derivatives |  |  |  | $ | 9,939 |  |  | $ | 2,797 |
(1) 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 March 31, 2024 and April 2, 2023, net losses from remeasurement of monetary assets and liabilities denominated in foreign currencies were $2.7 million and $0.4 million, respectively.

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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
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