FORM · Analysis updated Nov 10, 2026, 6:00 PM ET

Why is FormFactor, Inc. (FORM) stock moving?

FORM posted a strong Q3 2026: revenue of $280.5M beat the $270.5M estimate, GAAP gross margin rose to 54.7% from 50.7% in Q2, and operating cash flow reached $104.3M. Q4 adjusted EPS guidance of $0.86-$1.04 sits above the $0.81 consensus, and the sales midpoint of $285M is above the $278.4M estimate. The Oct 12 Teradyne collaboration includes a $300M strategic equity investment that is still subject to closing conditions. The share price, however, fell from a $110.31 close on Oct 28 to $71.76 on Nov 5, a drop of about 35%, on heavy volume (3.16M shares on Oct 29 and 2.62M on Nov 5). The news items reviewed do not give a direct cause for that sell-off. The stock has since rebounded to $85.63 on Nov 10 on lighter volume, still about 22% below the Oct 28 close. Analysts are split: Evercore and B. Riley keep Buy ratings but cut targets to $140 and $125, Freedom upgraded to Buy with a $140 target, while Needham and TD Cowen remain at Hold. Recent price-target cuts and the unexplained drop suggest near-term caution, while the earnings beat, raised guidance and Teradyne investment support the longer-term case.

News behind the analysis

About FormFactor Inc.

Technology · Semiconductor equipment (test and measurement)

FormFactor is a Livermore, California-based maker of probe cards, the precision tools that test chips while they're still on the silicon wafer, plus probe stations and measurement systems used in chip development. It's one of the largest probe card suppliers in the world, and in recent years demand for high-bandwidth memory (HBM) and advanced logic chips used in AI has driven its growth.

How it makes money

Most revenue comes from Probe Cards, which made up about 79% of sales in Q3 2026. Probe cards are largely custom-built for each chip design and wear out with use, so chipmakers keep buying replacements. The cards are sold to chipmakers working in foundry and logic (making chips for other companies, plus processors and other logic chips), DRAM (including HBM) and flash memory. The rest comes from the Systems segment: probe stations, cryogenic (ultra-cold) test systems and optical measurement tools used in labs and engineering work. Quarterly revenue was about $281 million in Q3 2026, up roughly 38% from a year earlier.

What usually moves FORM

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This analysis is for informational purposes only and is not financial advice. It is based on the news and market data provided, which may be incomplete. Investing involves risk, including the possible loss of principal.