--- title: "Teradyne's AI revenue grew 70% but it has $2.25 billion of purchase commitments and a flat Q4 guide" description: "Teradyne's Q3 revenue rose 70% on AI test demand, but the 10-Q filed on October 30 shows $539.7 million of supplier prepayments and $2.25 billion of purchase commitments against a Q4 guide that is flat sequentially. The next signal is collections, not the headline." publisher: "The Inference" section: "Chips" published: 2026-11-03T14:12:28.244Z modified: 2026-11-03T14:12:28.244Z canonical: https://theinference.org/article/teradyne-s-ai-revenue-grew-70-but-it-has-2-25-billion-of-purchase-commitments-and-a-flat-q4-guide language: en keywords: "Earnings, Semiconductors, AI, Guidance, Working Capital, Chip Test" --- # Teradyne's AI revenue grew 70% but it has $2.25 billion of purchase commitments and a flat Q4 guide > Teradyne's Q3 revenue rose 70% on AI test demand, but the 10-Q filed on October 30 shows $539.7 million of supplier prepayments and $2.25 billion of purchase commitments against a Q4 guide that is flat sequentially. The next signal is collections, not the headline. [Teradyne](https://theinference.org/markets/companies/teradyne)'s record AI test quarter looks self-funding until you read the balance sheet it filed on October 30 [1]. [Revenue of $1.31 billion, up 70% year over year](https://nextnow.io/story/teradyne-q3-2026-chip-testing-robotics-results/), was financed from inside the working-capital line: the company has $539.7 million of manufacturer and supplier prepayments on the books and $2.25 billion of component purchase commitments, $1.9 billion of it due within a year, against a fourth-quarter forecast whose midpoint is flat with the third quarter [1]. Teradyne has pre-paid for a demand ramp its own guidance does not yet confirm. The headline is genuinely strong. Semiconductor Test brought in $1.07 billion, memory-test revenue hit $300.8 million, more than doubling on AI-related demand, and [the GAAP operating margin expanded to 30.8% from 18.9% a year ago](https://www.investing.com/analysis/teradynes-ai-test-growth-funds-expansion-but-ties-up-more-cash-200690743) even while engineering spending rose to $163.1 million [1][2]. AI test demand, not a single chip type, is carrying the business: the buildout touches computing, memory, storage and the connections between them, and Teradyne's acquisitions, including the MultiLane stake for high-speed interconnect test and the pending $300 million [FormFactor](https://theinference.org/markets/companies/formfactor) investment, are aimed at exactly those links [1]. The demand thesis is real. ## The 10-Q shows the bill for the thesis Over nine months, receivables absorbed $302.7 million of cash, inventory $178.8 million, and prepayments and other assets $224.9 million, roughly $706 million tied up before acquisitions [1]. Prepaying suppliers locks in components for the AI tester cycle, which is smart when orders keep coming and expensive when they slow. *Chart: **Nine months of AI demand tied up about $706 million before acquisitions** Bar chart of Teradyne working capital absorption over the first nine months of 2026* *Cash absorbed by working capital lines over the nine months to September 27, 2026, in millions of dollars; together roughly $706 million before acquisitions. Source: [1]. [1]* Meanwhile sequential growth has already flattened: the third quarter came in below the second quarter's $1.329 billion, and the fourth-quarter midpoint of $1.30 billion does not clear it either [1][2]. *Chart: **Sequential growth has flattened: Q3 came in below Q2 and the Q4 guide does not clear it** Column chart of Teradyne quarterly revenue from Q2 2024 through the Q4 2026 guidance midpoint* *Quarterly revenue in billions of dollars, calendar quarters, from Teradyne's SEC filings; the Q4 2026 bar is the company's guidance midpoint, not a reported figure. Sources: [1], [3]. [1][3]* ## Watch collections, not the 70% headline The 70% headline is a rearview number; the December quarter's collections and how fast those $1.9 billion of commitments run off are the live signal [1]. Breadth is concentration in disguise: a small number of large customers drive most test-equipment purchases, so Teradyne's working capital is now levered to the same few AI capex cycles as everyone else's [1]. This is not a reason to doubt AI test demand, which is observable, but the stock's next test is arithmetic, not narrative: watch the December report for receivables turning into cash and commitments turning into shipped testers. If both happen, the prepayments were cheap optionality. If shipments stall, Teradyne will have converted cash into inventory and supplier guarantees at the first sign of a plateau, and the flexibility it banked this year shrinks. The filing, not the call, told you which to watch. ## Takeaway Teradyne's record AI test quarter was funded from working capital: $539.7 million of supplier prepayments and $2.25 billion of purchase commitments sit against a Q4 guide that is flat sequentially. Watch December collections and commitment runoff, not the 70% headline. ## Sources 1. [Investing.com, "Teradyne's AI Test Growth Funds Expansion but Ties Up More Cash", 3 November 2026](https://www.investing.com/analysis/teradynes-ai-test-growth-funds-expansion-but-ties-up-more-cash-200690743) 2. [NextNow, "Teradyne Revenue Rises 70% as Chip Testing Leads Sales", 3 November 2026](https://nextnow.io/story/teradyne-q3-2026-chip-testing-robotics-results/) 3. [Teradyne, quarterly figures from its SEC filings, retrieved 3 November 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000097210) --- Teradyne's AI revenue grew 70% but it has $2.25 billion of purchase commitments and a flat Q4 guide — The Inference. Canonical: https://theinference.org/article/teradyne-s-ai-revenue-grew-70-but-it-has-2-25-billion-of-purchase-commitments-and-a-flat-q4-guide