AI test push raises the bar
- Cohu is shifting toward AI chip testing, where management sees a $750 million computing opportunity pipeline.
- Recurring revenue made up 60% of Q1 2026 sales, which gives the company some cushion in chip cycles.
- Management raised 2026 high-performance computing revenue guidance to $80 million to $100 million.
- The catch is cost: the fast AI ramp is expected to push gross margin into the mid-40% range near term.
- Finn stays cautious because the AI pipeline is large, but conversion, margins, and valuation still need proof.
Big AI opening, harder execution
Cohu has moved from a plain cyclical recovery story to an AI test story. Management now points to about a $750 million computing opportunity pipeline across 12 customers, including test handlers and HBM inspection. It also raised the 2026 high-performance computing revenue outlook to $80 million to $100 million.
The bull case is simple. AI processors and high-bandwidth memory are harder to test, inspect, and cool during production. That can make Cohu's Eclipse handlers, T-Core thermal control, Neon inspection tools, interface products, and software more important to customers. The 60% recurring revenue mix in Q1 2026 also helps smooth out the normal boom and bust of semiconductor equipment demand.
The bear case is also sharper now. Cohu is spending to chase a larger prize, and management expects gross margin to dip into the mid-40% range during the ramp. If the five Eclipse customers in qualification do not convert, or if production costs stay high, the AI story could add revenue without enough profit.
The latest Q1 2026 filing did not change the main thesis. It confirmed stronger AI-driven demand, while automotive, industrial, and consumer markets stayed weak. It also added a new Iran Conflict risk, which could raise supply chain, cost, sanctions, and cybersecurity pressure.
Tools first, repeat sales second
Cohu sells equipment used by semiconductor makers and outsourced test companies. Its systems help handle, test, inspect, and measure chips before those chips ship into phones, cars, servers, power systems, and AI hardware.
Revenue comes from two main streams. Systems are larger capital equipment sales. Recurring revenue includes consumables, spares, services, upgrades, interface products, configuration tooling, software analytics, and subscriptions. In Q1 2026, recurring revenue was 60% of sales.
That mix matters because customers can delay new systems when chip demand slows. But they still need parts, service, contactors, and software to keep installed tools running. This does not make Cohu immune to cycles, but it can reduce the swing.
Software is the new high-margin piece to watch. Management cited a $20 million system order that came with a $330,000 annual software subscription, which could produce about $5 million of recurring revenue over the system lifetime. The open question is whether that kind of software attachment can scale from a small base.
Where the AI bet shows up
Eclipse Handler and T-Core Thermal Control
This is the core of Cohu's AI processor test push. Management says the platform addresses about a $650 million serviceable market tied to next-generation GPUs and XPUs.
Neon Inspection and Metrology
Neon is used for high-bandwidth memory inspection, including HBM3 and HBM4 work. Cohu forecasts this business will grow 80% year over year to about $20 million in 2026, with an estimated $100 million serviceable market.
Diamondx Tester
Diamondx is a broad test platform positioned as a cost-effective tool. It is now qualified for GaN-based power delivery devices, which are important for AI systems.
Interface Solutions and Contactors
Contactors connect chips to test equipment during production. This line supports recurring revenue and is gaining early traction in AI power and silicon photonics applications.
DI-core and PACE Software Suite
These software tools add analytics and workflow value around Cohu hardware. They are small today, but they could lift lifetime revenue if subscriptions attach to more systems.
Spares, Services, and Upgrades
These offerings keep installed tools working. They are a key reason recurring revenue reached 60% of Q1 2026 sales.
One segment, two revenue streams
Cohu reports one operating segment, Semiconductor Test and Inspection. For Q1 2026, management described the revenue mix as 60% recurring revenue and 40% systems revenue.
What could break the story
AI ramp fails to convert
High impact · Medium oddsThe $750 million pipeline is not the same as booked revenue. Management said five customers are in qualification and seven are in early engagement. If those customers delay, fail qualification, or split orders with rivals, Cohu's raised 2026 high-performance computing target could be too high.
Gross margin stays stuck
High impact · Medium oddsCohu expects gross margin to fall into the mid-40% range during the AI production ramp. That may be fine if it is temporary. It becomes a problem if supply chain costs, yield issues, or launch expenses keep margins from returning toward the high-40s in 2027.
Operational and inventory charges return
Medium impact · Medium oddsQ4 2025 showed that execution still matters. Cohu missed margin and earnings expectations after inventory charges tied to discontinued product lines and product consolidation. A fast AI pivot can create more chances for product transitions, old inventory, and factory changes to hurt profit.
Interface Solutions goodwill impairment
Medium impact · Medium oddsThe 2025 Form 10-K said the Interface Solutions reporting unit had limited headroom between fair value and carrying value. That means a modest drop in results, valuation assumptions, or market conditions could trigger a goodwill impairment. This would be an accounting charge, but it would signal weaker value in that business.
AI product and regulation risk
Medium impact · Low oddsCohu is adding AI into its own products and software. The company warned that poorly designed AI models or bad input data could produce unreliable results. It also faces a changing legal and regulatory setup for AI technology.
Iran Conflict supply chain shock
Medium impact · Low oddsThe Q1 2026 Form 10-Q added the Iran Conflict as a risk. Escalation could lead to sanctions, embargo rules, supplier delays, higher operating costs, and cybersecurity threats. Cohu depends on global semiconductor supply chains, so regional conflict can still hit production and shipping.
In one breath
What does Cohu actually do?
Cohu sells equipment and software used to test, handle, inspect, and connect semiconductors during production. Its tools help chipmakers find bad chips and manage difficult test conditions before products ship.
Why is Cohu tied to AI?
AI processors and high-bandwidth memory need more complex testing and thermal control. Cohu's Eclipse, T-Core, Neon, interface, and software products are aimed at those harder test and inspection needs.
Is Cohu mostly recurring revenue now?
In Q1 2026, recurring revenue was 60% of sales. That includes items like consumables, spares, services, upgrades, interface products, configuration tooling, and software.
What is the main thing investors should watch next?
The key test is whether Cohu can turn its AI pipeline into profitable revenue. Watch 2026 HPC revenue, customer qualifications for Eclipse, and whether gross margin recovers after the ramp costs.