FormFactor, Inc. (FORM) | The Buildout — AI Infrastructure
The Verdict
FormFactor designs the probe cards and test systems that sit at the critical wafer‑sort step in advanced semiconductor manufacturing. Its MEMS‑based probe cards are vital for testing the high‑bandwidth memory stacks, logic chips, and networking ASICs driving AI infrastructure. The company also produces probe stations and cryogenic systems used in R&D and emerging production test for co‑packaged optics and quantum computing. As advanced packaging and chip complexity increase, the need for high‑parallelism, high‑speed test at the wafer level grows, positioning FormFactor at the intersection of HPC and advanced packaging.
| Market Cap | — |
| Revenue (TTM) | $902M |
| Revenue Growth | +18.0% |
| EBITDA Margin (TTM) | 21.4% |
| Net Cash | $326M |
| Earnings Beats | 5 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- HBM probe‑card revenue grew more than 50% year‑over‑year from H1 2025 to H1 2026, and a second major DRAM maker has adopted FormFactor’s Smart Matrix for volume HBM stack test.
- Non‑GAAP gross margin surged to 49.0% in Q1 FY2026, achieving the long‑standing target model of 47%/$850M annualised revenue one year earlier than planned.
- Revenue diversification accelerated: NVIDIA became a 10% customer (networking), GPU qualification nears completion with ~$20M expected in 2H 2026, and data‑centre CPU probe cards from AI inference emerged as a new demand vector.
- Co‑packaged optics test entered commercial production; the Triton system is ramping and 2026 CPO revenue is guided to the high end of $10–20 million.
- The Farmers Branch, Texas, expansion will add capacity equivalent to ~60% of the existing probe‑card business, structurally lowering costs and unlocking growth beyond current constraints.
What We’re Watching
- ~200 basis points of the Q1 margin beat was attributed to transitory customer timing that could reverse; durable gross margins may settle in the high‑40s rather than above 50%.
- Customer concentration rose: SK hynix at 29.5% of Q1 revenue. A pause in HBM design releases would directly reduce quarterly revenue by tens of millions.
- Manufacturing utilisation is extremely high; the current footprint may not sustain further sequential revenue growth until the new Texas facility contributes in late 2026.
- GPU probe‑card revenue is contingent on successful qualification and volume order conversion; the $20M second‑half target is an initial milestone that could slip.
The thesis is strengthening. FormFactor has delivered record revenue and profitability that exceed the old target model, while demand is broadening across memory, logic, and optical test. The primary risk is that near‑term capacity constraints limit further expansion until the Texas plant comes online. The key open question is whether the company can sustain high‑margin revenue growth once the transitory tailwinds roll off and the new capacity ramps in 2027.
Earnings Beat
FormFactor reported record revenue of $258.2 million in its fiscal second quarter ended June 27, 2026, well above the $235–245 million guidance range. Gross margin expanded to 50.7%, and net income reached $56.2 million. The company cited strong demand across DRAM, Foundry & Logic, and Systems, with management noting that DRAM probe cards set another record.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $258M | $226M | $196M | +31.9% |
| Gross margin | 50.7% | 47.9% | 37.2% | +1350bps |
| EBITDA | $65M | $56M | $24M | +175.1% |
| EPS | $0.71 | $0.26 | $0.12 | +502.0% |
We’re proud to have delivered on this commitment … validated the model on an annualized basis.— Mike Slessor, CEO, April 29, 2026
Management tone: Management sounded confident and transparent, celebrating the early achievement of the target model while explicitly cautioning that future margin expansion would proceed at a more moderate pace. They provided a detailed bridge of the gross margin improvement, splitting temporary from durable components.
Management Guidance
On the Q1 FY2026 earnings call, management guided Q2 FY2026 revenue to $240 million ± $5 million (range $235–245 million), non‑GAAP gross margin to 49.5% ± 150 basis points (48.0–51.0%), and non‑GAAP EPS to $0.61 ± $0.04 ($0.57–0.65). No full‑year guidance was provided.
Trajectory
FormFactor’s revenue accelerated sharply, rising from $202.7 million in Q3 FY2025 to $258.2 million in Q2 FY2026 — a 27% increase — as HBM probe‑card demand surged and new networking, inference CPU, and GPU opportunities began to materialize. Gross margin expanded from 39.7% to 50.7% over the same period, reflecting higher factory utilization, restructuring savings, and a favourable mix shift toward higher‑value DRAM and Foundry & Logic test.
The Model
The model projects FY+1 revenue of $969 million and EBITDA of $249 million (25.7% margin), rising to $1,200 million revenue and $336 million EBITDA (28.0% margin) in FY+2. The near‑term forecast is anchored by continued HBM growth, the GPU probe‑card ramp, and initial CPO revenue, while FY+2 assumes the Farmers Branch capacity expansion adds output and structural margin improvement.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $785M | $969M | $1.2B |
| YoY Growth | — | +23.4% | +23.8% |
| EBITDA | $112M | $249M | $336M |
| EBITDA Margin | 14.3% | 25.7% | 28.0% |
Projections are the median of 5 independent model runs. The model’s revenue sits 8.1% above analyst consensus.
On the Q1 FY2026 earnings call, management guided Q2 FY2026 revenue to $240 million ± $5 million (range $235–245 million), non‑GAAP gross margin to 49.5% ± 150 basis points (48.0–51.0%), and non‑GAAP EPS to $0.61 ± $0.04 ($0.57–0.65). No full‑year guidance was provided.
What Could Go Right — and Wrong
- HBM5 adoption further increases test intensity per stack, sustaining strong annual probe‑card growth.
- GPU probe‑card revenue scales significantly in FY2027 as FormFactor becomes a primary supplier to the world’s largest foundry for AI accelerators.
- Co‑packaged optics test revenue ramps rapidly, turning Systems into a profit center.
- The new Texas facility ramps faster than expected and delivers accretive gross margins by mid‑2027.
- A third major DRAM manufacturer adopts Smart Matrix, giving FormFactor a near‑triopoly in HBM at‑speed test.
- A shift in memory maker wafer‑start mix toward high‑margin DDR significantly reduces HBM probe‑card orders.
- GPU probe‑card qualification fails or is delayed, and competitors retain the merchant GPU probe‑card market.
- The ~200bps transitory margin component normalizes, and gross margins retreat from recent highs.
- New Texas plant capex overruns or delays push capacity addition into mid‑2027, capping revenue near $260 million.
- Sole‑source supply disruption in substrates or PCBs halts probe‑card production during peak demand.
Looking Ahead
The next twelve months will test whether FormFactor can maintain its record revenue pace as HBM demand continues and the GPU, CPU, and CPO ramps broaden the business. The start of production at the new Texas facility, targeted for late calendar 2026, is the most critical milestone for capacity and gross margin.
- 2H 2026GPU probe card volume shipments — ~$20M revenue expected; qualification nearing completion at the largest foundry.
- Late 2026Initial production at new Texas plant — New Texas fab starts output, easing capacity constraints and supporting growth.
- 2027Full ramp of new Texas plant — Capacity reaches ~60% of existing probe-card business, accretive to gross margins.
- OngoingSecond HBM customer share gains — Smart Matrix adoption sustains record DRAM probe‑card revenue across multiple quarters.
- Beyond 2026Electro‑optical probe card roadmap — Keystone Photonics integration advances silicon photonics probing capabilities.
- Several quarters awayTariff refund decision — Potential $9–11M recovery of previously paid IEPA tariffs not yet recorded.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $764M | $785M | $902M | +2.8% |
| Gross Margin | 40.2% | 39.5% | 45.6% | 62bps |
| EBITDA | $98M | $112M | $1.1B | +14.8% |
| EBITDA Margin | 12.8% | 14.3% | 21.4% | +148bps |
| Net Income | $70M | $54M | $116M | -21.8% |
| Free Cash Flow | $79M | $12M | $665M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)45.6%
- EBITDA Margin (TTM)21.4%
- Net Margin (TTM)12.8%
- ROIC15.3%
- FCF Conversion70.5%
- SBC / Revenue4.0%
The Company
FormFactor designs and manufactures electrical and optical test technologies that span the semiconductor product lifecycle, from early device characterization through high‑volume manufacturing. Its core product, the MEMS‑based probe card, is a consumable interface that sits between a silicon wafer and the tester, enabling at‑speed, massively parallel testing of memory (HBM), logic, networking, and other advanced chips. A smaller Systems segment sells probe stations, thermal subsystems, and cryogenic tools for research labs and production‑line applications, including the Triton co‑packaged optics test platform.
The company operates probe card manufacturing primarily in Livermore, California, and Beaverton, Oregon, with a small facility in Yokohama, Japan. Systems are built in Boulder, Colorado, and three sites in Germany. A major expansion is underway at a newly acquired site in Farmers Branch, Texas, expected to add capacity equivalent to roughly 60% of the current probe card business. FormFactor relies on purchase orders rather than long‑term contracts with both customers and suppliers, and it depends on sole‑source vendors for critical ceramic/organic substrates and complex printed circuit boards.
Business Segments
Competitive Landscape
FormFactor operates in a concentrated market for semiconductor probe cards. Management emphasizes its differentiated MEMS‑based architecture for high‑speed, high‑parallelism applications — a claim validated by the second HBM manufacturer’s recent Smart Matrix adoption. The open‑ecosystem approach with ATE partners lowers adoption friction but means well‑funded competitors could eventually qualify at the same accounts. The company also faces competitive pressure from adjacent test technologies, such as wafer‑level burn‑in, where AEHR is exploring HBM entry.
- AEHRScaling wafer‑level burn‑in for AI processors; discussing HBM entry — currently complementary but may overlap with at‑speed test over time.
Supply Chain
FormFactor sits between semiconductor wafer fabrication and back‑end test; it supplies consumable probe cards directly to chipmakers and foundries, and capital‑equipment probe stations to R&D labs and production lines. Neighbor read‑throughs from TSMC, Intel, and NVIDIA confirm their roles as customers, though none mentioned FormFactor by name.