FormFactor Crushed Q3 Estimates and Is Racing Toward $1 Billion in Revenue — So Why Did Investors Hit the Sell Button?
Shares of FormFactor plunged 11% the day after the semiconductor-testing equipment maker posted what looked, on the surface, like a blowout quarter. The company reported non-GAAP earnings of $1.04 per share on revenue of $280.5 million, beating the $0.86 consensus on earnings and the $270.5 million estimate on revenue.
It was the firm's fourth straight quarter of record sales, with revenue up roughly 40% year over year. Yet the stock cratered after hours — a classic case of a market that was already pricing in perfection and got something less.
• Q4 Growth Is Slowing Just as Costs Are Rising. FormFactor guided fourth-quarter revenue to $285 million (±$10 million), implying just 1.6% sequential growth at the midpoint compared with 8.6% in Q3.
Non-GAAP earnings are expected to dip to $0.95 per share, down 8.7% sequentially from Q3's $1.04. The culprit is twofold: management acknowledged that "productivity gains from our existing manufacturing footprint are moderating as we approach its capacity limits." Meanwhile, startup costs from the new Farmers Branch, Texas factory will begin shifting into cost of revenues, with roughly $5 million hitting gross margins in Q4 and another $5 million staying in operating expenses.
• Gross Margins Face a Temporary Ceiling. FormFactor delivered a non-GAAP gross margin of 56.5% in Q3, boosted by operational efficiencies and tariff refunds.
However, management expects Q4 gross margin to ease to about 54% as capacity constraints and Texas facility ramp costs weigh on near-term profitability.
For 2027, the company expects margins to hover near 53% as factory ramp inefficiencies offset volume gains. Investors who bought the stock on its margin expansion story now face a pause.
• The $1 Billion Milestone Masks the Real Question. FormFactor is on track to pass $1 billion in full-year revenue for the first time.
Management's longer-term target model calls for $1.6 billion in revenue, a 55% gross margin, and $5 in non-GAAP earnings per share. That vision depends heavily on successfully ramping Farmers Branch, which is expected to reach approximately $400 million in annual probe card production capacity by end of 2027. Any execution stumble at the new plant could delay the roadmap significantly.
• A Photonics Bright Spot Couldn't Save the Day. Systems segment revenues surged 63.8% year over year to a record $59.5 million.
The company now expects photonics-related revenue to exceed $30 million in 2026, up from its initial projection of $10–$20 million. It's genuine momentum — but not yet large enough to offset margin anxiety across the broader business.
The bottom line: FormFactor's results were strong, but the stock had already priced in strength. What spooked investors was the math ahead — slower sequential growth, lower margins, and factory costs that won't pay off until 2027.