Exhibit 99.1

Teradyne Reports Third Quarter 2024 Results

NORTH READING, Mass. – October 23, 2024 – Teradyne, Inc. (NASDAQ: TER) reported revenue of $737 million for the third quarter of 2024 of which $543 million was in Semiconductor Test, $73 million in System Test, $33 million in Wireless Test and $89 million in Robotics. GAAP net income for the third quarter of 2024 was $145.6 million or $0.89 per diluted share. On a non-GAAP basis, Teradyne’s net income in the third quarter of 2024 was $147.6 million, or $0.90 per diluted share, which excluded acquired intangible asset amortization, restructuring and other charges, amortization on our investment in Technoprobe, legal settlement, pension mark-to-market, and included the related tax impact on non-GAAP adjustments.

“Semiconductor Test continues to perform better than planned on record Memory revenue driven by High Bandwidth Memory (HBM) and compute demand for AI applications,” said Teradyne CEO, Greg Smith. “Robotics continues to execute to its longer-term growth strategy with improving traction in recurring software and services revenue and progress in the UR OEM channel. As we finish 2024 and look forward to 2025, we are excited about building on this progress."

Guidance for the fourth quarter of 2024 is revenue of $710 million to $760 million, with GAAP net income of $0.73 to $0.91 per diluted share and non-GAAP net income of $0.80 to $0.97 per diluted share. Non-GAAP guidance excludes acquired intangible asset amortization and amortization on our investment in Technoprobe, as well as the related tax impact on non-GAAP adjustments.

Webcast

A conference call to discuss the third quarter results, along with management’s business outlook, will follow at 8:30 a.m. ET, Thursday, October 24, 2024. Interested investors should access the webcast at www.teradyne.com and click on "Investors" at least five minutes before the call begins. Presentation materials will be available starting at 8:30 a.m. ET. A replay will be available on the Teradyne website at www.teradyne.com/investors.

Non-GAAP Results

In addition to disclosing results that are determined in accordance with GAAP, Teradyne also discloses non-GAAP results of operations that exclude certain income items and charges. These results are provided as a complement to results provided in accordance with GAAP. Non-GAAP income from operations and non-GAAP net income exclude acquired intangible assets amortization, restructuring and other, pension actuarial gains and losses, stock compensation modification expense, gains and losses on foreign exchange options in connection with acquisitions and divestitures, gain on sale of business, legal settlement, discrete income tax adjustments, and includes the related tax impact on non-GAAP adjustments. GAAP requires that these items be included in determining income from operations and net income. Non-GAAP income from operations, non-GAAP net income, non-GAAP income from operations as a percentage of revenue, non-GAAP net income as a percentage of revenue, and non-GAAP net income per share are non-GAAP performance measures presented to provide meaningful supplemental information regarding Teradyne’s baseline performance before gains, losses or other charges that may not be indicative of Teradyne’s current core business or future outlook. These non-GAAP performance measures are used to make operational decisions, to determine employee compensation, to forecast future operational results, and for comparison with Teradyne’s business plan, historical operating results and the operating results of Teradyne’s competitors. Non-GAAP diluted shares include the impact of Teradyne’s call option on its shares. Management believes each of these non-GAAP performance measures provides useful supplemental information for investors, allowing greater transparency to the information used by management in its operational decision making and in the review of Teradyne’s financial and operational performance, as well as facilitating meaningful comparisons of Teradyne’s results in the current period compared with those in prior and future periods. A reconciliation of each available GAAP to non-GAAP financial measure discussed in this press release is contained in the attached exhibits and on the Teradyne website at www.teradyne.com by clicking on “Investor Relations” and then selecting “Financials” and the “GAAP to Non-GAAP Reconciliation” link. The non-GAAP performance measures discussed in this press release may not be comparable to similarly titled measures used by other companies. The presentation of non-GAAP measures is not meant to be considered in isolation, as a substitute for, or superior to, financial measures or information provided in accordance with GAAP.

About Teradyne

Teradyne (NASDAQ:TER) test technology helps bring high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster. Its advanced test solutions for semiconductors, electronic systems, wireless devices and more ensure that products perform as they were designed. Its robotics offerings include collaborative and mobile robots that help manufacturers of all sizes increase productivity, improve safety, and lower costs. In 2023, Teradyne had revenue of $2.7 billion and today employs over 6,400 people worldwide. For more information, visit teradyne.com. Teradyne® is a registered trademark of Teradyne, Inc., in the U.S. and other countries.

Safe Harbor Statement

This release contains forward-looking statements including statements regarding Teradyne’s future business prospects, financial performance or position and results of operations. You can identify forward-looking statements by their use of forward-looking words such as “anticipate,” “expect,” “plan,” “could,” “may,” “will,” “believe,” “estimate,” “goal” or other comparable terms. Forward-looking statements in this press release address various matters, including statements regarding Teradyne’s financial guidance. Investors are cautioned that such forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from the forward-looking statements due to known and unknown risks, uncertainties, assumptions, and other factors. Such factors include, but are not limited to, macroeconomic factors and slowdowns or downturns in economic conditions generally and in the markets in which Teradyne operates; decreased or delayed product demand from one or more significant customers; a slowdown or inability in the development, delivery and acceptance of new products; the ability to grow the Robotics business; the impact of increased research and development spending; the impact of epidemics or pandemics such as COVID-19; the impact of a supply shortage on our supply chain and contract manufacturers; the consummation and success of any mergers or acquisitions; unexpected cash needs; the business judgment of the board of directors that a declaration of a dividend or the repurchase of common stock is not in Teradyne’s best interests; changes to U.S. or global tax regulations or guidance; the impact of any tariffs or export

controls imposed by the U.S. or China; the impact of U.S. Department of Commerce or other government agency regulations relating to Huawei, HiSilicon and other customers or potential customers; the impact of U.S. Department Commerce export control regulations for certain U.S. products and technology sold to military end users or for military end-use in China; the impact of the current conflicts in Israel; the impact of regulations published by the U.S. Department of Commerce relating to semiconductors and semiconductor manufacturing equipment destined for certain end uses in China.

The risks included above are not exhaustive. For a more detailed description of the risk factors associated with Teradyne, please refer to Teradyne’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023. Many of these factors are macroeconomic in nature and are, therefore, beyond Teradyne’s control. We caution readers not to place undue reliance on any forward-looking statements included in this press release which speak only as to the date of this press release. Teradyne specifically disclaims any obligation to update any forward-looking information contained in this press release or with respect to the announcements described herein.