Layer 6 · FORM — FormFactor
Thesis
FormFactor prints the probe cards that test wafer-level HBM and leading-edge logic before dicing — record DRAM probe-card revenue $82.9M in Q1, +69.5% YoY on HBM. Q2 guide ahead at $240M ±$5M. Tier B because the live USD price wasn't surfaced (needsmanualcheck) and we don't add Tier A without a clean price reconciliation. Fundamentals are clean Tier A.
What it does + financial print
Layer 6 wafer-level test consumables. Probe cards are the physical card-and-needle assemblies that touch down on individual dies during wafer-level test — different from Advantest's testers, which are the test chassis. FormFactor leads in DRAM/HBM probe cards; SK Hynix, Micron and Samsung HBM lines all run on FormFactor. The HBM4 inflection drives a re-platform of probe-card design; FormFactor has been quietly winning second-customer ramps on its Smart Matrix tech.
Q1 FY26 revenue $226.1M, +32% YoY. EPS $0.26 (beat). DRAM segment revenue $82.9M, +69.5% YoY — a record. Q2 guide $240M ±$5M, gross margin 49.5%, EPS $0.61. HBM probe-card business +50% H1 25 to H1 26.
Bull case
What promotes to Tier A is a verified live price plus second consecutive quarter of record DRAM probe-card revenue. FormFactor is the cleanest pure-play probe-card asset in the test layer, period.
Gap / bear case
Customer concentration is the gap — DRAM/HBM probe-card revenue concentrates in three customers (SK Hynix, Micron, Samsung). Foundry & Logic probe market is also lumpy with leading-edge node timing.
Trigger to upgrade / downgrade
Upgrade trigger: price verified plus Q2 print confirming $240M guide hit. Downgrade trigger: any pushout on HBM4 qualification timing from SK Hynix or Samsung.
The trade
- Entry zone: Pending price verification - Stop: 2×ATR below entry once verified - Position size: 1.5% of NLV - Catalyst date: Q2 print late July; HBM4 qualification milestones through Q3 - Conviction: 7/10