FormFactor, Inc. (FORM)

How it makes money

Revenue is essentially transactional: FormFactor sells hardware, largely direct to semiconductor manufacturers and partly through manufacturers' representatives and distributors, and recognises revenue when the product is delivered. There is no subscription. Probe cards are consumable and design-specific: a new chip design, or a new process node, generally requires a new probe card, and cards wear out with use, so demand recurs as customers introduce designs and run volume production. The company states it has limited backlog and depends on orders booked and shipped within the same quarter, which makes revenue closely tied to current customer order rates rather than to a contracted base.

Revenue by segment

Each probe card is engineered for one customer's specific chip design and must pass a long qualification process on that customer's test floor before it can be used in production, which makes changing supplier mid-programme costly and slow. That advantage is real but bounded: the company states in its risk factors that its markets are intensely competitive, that it must keep pace with each new process node and packaging architecture, and that it has limited backlog — so the relationship is re-won design by design rather than locked in by contract.

Demand follows the semiconductor cycle. The 10-K names as drivers the development and manufacture of new chips, the pace at which manufacturers move to smaller nodes, the volume of production, and end-demand for servers, AI systems, PCs, cars and phones. Two forces overlap: a design-driven one, since every new chip design needs its own probe card, and a volume-driven one, since cards wear out in production. When customers pause new designs or cut wafer starts, both taper at once — and the segments do not move together: fiscal 2025 saw DRAM revenue rise on High Bandwidth Memory for AI while Foundry & Logic fell.

Key risks

• Revenue concentrated in a few customers — FormFactor discloses that a small number of customers account for a large share of revenues — one customer alone was 22.9% of fiscal 2025 revenues — so losing one, or a slowdown in its programmes, would hit results directly. The company also flags consolidation among semiconductor manufacturers as something that concentrates its customer base further.
• Dependence on probe cards — The company states that it derives the majority of its revenues from probe card products; a decline in that single product family would not be offset by the rest of the portfolio.
• Cyclicality of the semiconductor industry — FormFactor lists the industry's cyclicality among its risk factors: its customers' capital and test spending rises and falls with the chip cycle, and the company cannot adjust its cost base as quickly as orders move.
• Little backlog, quarter-by-quarter visibility — The filing states that backlog is insufficient to cover a quarter's revenues, so results depend on orders received and shipped within the same period; forecasting demand and manufacturing yields is explicitly named as a risk.
• Technology transitions and customer test strategies — The company warns that it must keep pace with new nodes and architectures, and that changes in how customers test their devices — a different design-for-test approach, or less testing per wafer — can reduce the need for its products.
• Competition — The first risk factor states that FormFactor's markets are competitive and that failure to compete effectively — on price, performance or lead time — could harm its results.

Top customers account for 22.9% of revenue

One customer accounted for 22.9% of total revenues in fiscal 2025. For comparison, the filing states that two customers together accounted for 33.5% of revenues in fiscal 2024 and one customer for 17.1% in fiscal 2023. The concentration reflects a customer base of large memory makers and foundries, and the company lists it among its risk factors.