FormFactor’s third quarter was marked by strong revenue and profit growth, with sales rising sharply year over year and exceeding Wall Street expectations. However, the market reacted negatively, reflecting concerns that capacity constraints and non-recurring tariff benefits could limit further upside. Management attributed the quarter’s performance to broad-based demand in both foundry and logic probe cards as well as a surge in photonics systems, while also acknowledging that the company is now operating near the limits of its existing manufacturing footprint. CEO Mike Slessor emphasized, “We grew quarterly revenue close to 40% within essentially the same manufacturing footprint,” highlighting operational efficiency gains and the expanding relevance of high-bandwidth memory and advanced packaging.
Is now the time to buy FORM? Find out in our full research report (it’s free for active Edge members).
FormFactor (FORM) Q3 2026 highlights:
- Revenue $280.5 million vs S&P analysts’ estimates of $270.5 million (38.4% year-on-year growth, 3.7% beat)
- Adjusted EPS $1.04 vs S&P analysts’ estimates of $0.86 (20.5% beat)
- Adjusted operating income $94.07 million vs analyst estimates of $76.33 million (33.5% margin, 23.2% beat)
- Revenue guidance $285 million at the midpoint for Q4 2026, above analyst estimates of $277.9 million
- Adjusted EPS guidance $0.95 at the midpoint for Q4 2026, above analyst estimates of $0.81
- Operating margin 29.1%, up from 8.9% in the same quarter last year
- Inventory days outstanding 95, up from 90 in the previous quarter
- Market capitalization $7.61 billion
While we enjoy listening to the management’s commentary, our favorite part of earnings calls is the analyst questions. Those are unscripted and can often highlight topics that management teams would rather avoid or topics where the answer is complicated. Here is what has caught our attention.
Our top 5 analyst questions from FormFactor’s Q3 earnings call
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Sreekrishnan Sankarnarayanan (TD Cowen) asked about margin sustainability as Farmers Branch ramps, and CFO Aric McKinnis said temporary inefficiencies should be offset by higher volumes and ongoing efficiency improvements, keeping gross margins near the baseline during ramp-up.
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Craig Ellis (B. Riley) inquired about the drivers of sequential growth in foundry and logic, and CEO Mike Slessor pointed to strength in CPUs for AI and expanded exposure to GPUs and custom ASICs, as well as broader customer diversification.
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Matthew Prisco (Cantor) wanted clarity on whether capacity constraints would persist into next year, and McKinnis confirmed that current operations are near maximum output, with capacity relief dependent on the successful ramp of Farmers Branch.
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George Brown (Deutsche Bank) asked about the contributions of GPUs and ASICs in recent results, and Slessor explained that initial shipments to leading foundries mark the beginning of a multi-year opportunity, with significant share gains possible as new capacity comes online.
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Yu Shi (Needham) probed the long-term gross margin impact of Farmers Branch, and McKinnis responded that the facility’s cost structure aligns with the company’s long-term profitability targets, but near-term accretion will only be realized after the ramp is complete.
Catalysts in upcoming quarters
Looking ahead, the StockStory team will be tracking (1) the pace and effectiveness of the Farmers Branch facility ramp and its impact on relieving capacity constraints, (2) the rate of adoption and revenue contribution from optical testing and photonics systems, and (3) ongoing product mix shifts in DRAM, GPUs, and custom ASICs that could affect both top-line growth and margins. Management’s ability to execute on manufacturing efficiency and new customer qualifications will also be important milestones.
FormFactor currently trades at $87.86, down from $112.76 just before the earnings. Is there an opportunity in the stock? Find out in our full research report (it’s free).
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