TER stock forecast, quote, news & analysis

Key Takeaways

• Teradyne shares fell roughly 31.6% over the trailing 30 days, from a close of $400.91 on September 30 to $274.37 at the most recent close.
• The decline came despite a strong Q3 2026 report in which revenue rose about 70% year over year and adjusted EPS of $2.29 beat consensus estimates.
• Investor concerns centered on softer Q4 gross-margin guidance, a build-up in inventory, a flatter sequential revenue trajectory, and elevated valuation after a powerful run.
• A broad semiconductor and AI-infrastructure selloff in late October, along with insider selling, amplified the pullback after the stock had hit a 52-week high near $488 in mid-2026.
• Over the trailing three months, the stock is down about 25%, reflecting a sharp multi-week correction after an AI-driven rally earlier in the year.
• For more detail on valuation and earnings expectations, explore Teradyne's Price Targets, Earnings, and Forecast pages.
• For additional market signals, explore Trending AI Robots.

Teradyne (TER) Company Overview and Market Position

Teradyne, Inc. designs, develops, and manufactures automated test equipment (ATE) and advanced robotics systems. Its semiconductor test solutions span system-on-chip (SoC), memory, and high-speed interconnect testing, while its robotics portfolio includes collaborative robots and autonomous mobile robots used in manufacturing and warehouse automation. Based in North Reading, Massachusetts, Teradyne is a leading supplier to semiconductor manufacturers and has positioned itself around a "wafer to data center" strategy tied to the build-out of AI infrastructure. Investors follow the stock for its exposure to semiconductor capital spending, AI-driven test demand, and its smaller but growing robotics segment.

Teradyne (TER) Stock Price Performance: Last 30 Days vs. Quarter

Over the last 30 days, Teradyne shares declined approximately 31.6%, moving from a close of $400.91 on September 30 to $274.37 at the most recent close. The move was heavily back-loaded: the stock traded near its recent peak of around $449 in early October before a sharp selloff through the final weeks of the month.

The quarterly picture is similar in direction but less severe. Over the trailing three months, the stock fell roughly 25%, from about $365 in late July to the most recent close near $274. The longer window shows the stock rising through the summer and peaking in early October before giving back those gains in a concentrated correction.

What Drove TER Stock Price in the Last 30 Days

Several factors converged to pressure the stock. Teradyne reported Q3 2026 results in late October with revenue of about $1.31 billion, up roughly 70% year over year, and adjusted EPS of $2.29, ahead of consensus. Despite the beat, shares fell as investors focused on the outlook: management guided Q4 gross margins to 57.5%–58.5%, down from 59.1% in Q3, citing product mix and new product launches. Inventory also rose by roughly $200 million over six months, which management attributed partly to demand preparation and partly to longer supplier lead times.

The decline was compounded by a broad risk-off move in semiconductor and AI-linked names in late October, when high-valuation growth stocks sold off sharply amid renewed questions about the cost and pace of AI infrastructure spending. Teradyne's elevated valuation—the stock traded at a significant premium to its historical multiple—left it vulnerable to repricing. Insider selling, including disclosed sales by the CEO and a director, added to the cautious sentiment.

What Drove TER Stock Performance Over the Last Quarter

The broader multi-month trend reflects a cycle of strong appreciation followed by a sharp correction. Teradyne rallied through much of 2026 on accelerating AI-driven test demand, with semiconductor test revenue growing rapidly and the robotics unit reaching profitability. The stock reached a 52-week high near $488 before momentum faded. In the final weeks of the period, a repricing of richly valued AI-infrastructure stocks and profit-taking after the year's substantial gains drove the stock lower, even as underlying fundamentals remained strong. The result was a roughly 25% decline over the trailing three months despite healthy revenue and earnings growth.

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TER Stock Forecast Drivers: What Investors Should Watch Next

Looking ahead, investors are likely to focus on several factors. The company's Q4 guidance calls for revenue of $1.25 billion to $1.35 billion and adjusted EPS of $1.95 to $2.25, with gross margins guided lower on product mix. Management has indicated 2027 is expected to be another year of healthy growth, with an updated long-term model expected in January. Key items to monitor include the trajectory of memory test demand (particularly HBM, DRAM, and NAND), compute test order timing, high-speed interconnect strength, and the robotics business's progression toward broader deployment. The planned closing of the FormFactor investment, subject to regulatory approval, is another item to watch. Broader risks include semiconductor capital spending cycles, hyperscaler AI investment trends, competitive dynamics in compute testing, and the pace of inventory digestion.

Disclaimer

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