Cohu (COHU) Q2 2026 earnings review
AI Drives a Massive Top-Line Breakout
Cohu delivered a decisive breakout quarter, reversing last year's slump with a 38% YoY revenue surge to $149 million. The semiconductor test equipment cycle has officially turned, as test cell utilization reached the critical 80% threshold—historically the trigger for broad-based capacity expansion. The AI-driven compute boom is materializing rapidly, causing management to upgrade their HPC revenue guidance to $100-$110 million and their pipeline to $850 million. While the top-line story is exceptionally strong, profitability metrics reveal friction: Non-GAAP gross margin contracted sequentially from 46.5% to 45.5% as lower-margin systems revenue outpaced high-margin recurring sales.
🐂 Bull Case
Estimated test cell utilization hit 80% at the end of June (up from 78% in Q1 and 75% a year ago), signaling the start of a broad-based equipment buying cycle across all end markets.
Cohu upgraded its AI-driven compute opportunity pipeline to $850 million and raised its FY26 HPC revenue outlook, validating the adoption of its specialized thermal testing solutions for high-power data center processors.
🐻 Bear Case
The rapid acceleration in hardware sales is diluting the gross margin mix. Sequentially, Non-GAAP gross margin decelerated from 46.5% to 45.5%, a trend likely to continue as lower-margin systems outpace high-margin recurring services.
Despite holding nearly $500 million in cash and investments, Cohu executed zero share repurchases again this quarter, continuing a pause that began in 2024 and creating an inefficient capital structure.
⚖️ Verdict: 🟢
Bullish. Top-line acceleration is dramatic and guidance points to even steeper growth ahead. The slight margin compression is a natural friction of an equipment upcycle, far outweighed by the scale of the revenue rebound.
Key Themes
AI Thermal Management (T-Core & Eclipse)
Accelerating. The rising power density of AI processors is forcing the industry to adopt active thermal control during testing. Cohu's Eclipse test handler, equipped with T-Core technology, is capturing this shift. Management raised the FY26 high-performance computing (HPC) revenue estimate to $100-$110 million (up from the $80-$100 million target set just last quarter), proving rapid design-win conversion.
Macro Utilization Cycle Reaches Inflection
Accelerating. The broader semiconductor equipment recovery is fully underway. Management reported that estimated test cell utilization reached 80% by the end of June. This metric is the critical leading indicator for Cohu; crossing the 80% threshold historically forces OSATs and IDMs to initiate new capital expenditure cycles rather than rely on existing installed bases.
Operating Leverage in Action
Reversing. The top-line surge directly impacted the bottom line. Non-GAAP net income reversed from a loss of $0.1 million in the first half of FY25 to a $14.6 million profit in the first half of FY26. Non-GAAP Operating Expenses were successfully contained, allowing the 38% revenue surge to fall straight to EBITDA.
Margin Contraction Amidst Revenue Growth
Decelerating. A major data point contradicting the otherwise flawless quarter is the sequential gross margin drop. Despite revenue rising 19% sequentially to $149 million, Non-GAAP gross margin contracted 100 basis points from 46.5% to 45.5%. This exposes a structural mix headwind: explosive systems growth is cannibalizing the higher-margin recurring revenue base, compounded by the supply chain costs of rapidly ramping the Eclipse handlers.
Capital Allocation Paused
Stable but concerning. Cohu’s cash and investments pile grew to $498.2 million (up from $484.0 million at the end of FY25), yet the company repurchased zero shares during the quarter. With total debt at ~$296 million, the net cash position is substantial. Without aggressive M&A execution, this idle capital is a drag on shareholder returns.
Execution and Scaling Risks
As guided in prior quarters, the massive step-up in Eclipse demand brings acute operational challenges. Scaling manufacturing for a complex 3,000-watt thermal dissipation handler requires flawless supply chain management. If Cohu hits bottlenecks at its Asian manufacturing sites, the $170M Q3 guidance could be jeopardized.
Other KPIs
Accelerating dramatically from $3.8 million in the prior-year period. Adjusted EBITDA margin expanded to 12.3% of sales, compared to just 3.6% in 25Q2. This demonstrates excellent operating leverage as volumes scale past the fixed cost base.
Stable sequentially and demonstrating excellent cost control. OpEx actually declined from the $55.0 million reported in 26Q1, proving that management's recent restructuring and manufacturing transitions are holding expenses in check even as revenue rockets higher.
Guidance
Accelerating. The midpoint implies a massive 35% YoY growth rate over the $126.2 million reported in Q3 FY2025, and a 14% sequential step-up from Q2. This confirms that the equipment demand recovery is steepening rather than flattening.
Accelerating. Management raised this outlook from the $80 - $100 million target provided just three months ago in Q1. This shows concrete design-win momentum translating immediately into booked revenue for AI data center applications.
Key Questions
Gross Margin Trajectory
With Q3 revenue guided to $170 million, driven largely by new system placements, what is the expected impact on gross margin? Will the systems mix further compress margins below the 45% level in the second half of the year?
Capital Allocation Strategy
The balance sheet now holds nearly $500 million in cash and investments. Given that the test cell utilization recovery is fully underway, why has the company continued to hold off on share repurchases, and what is the current timeline for deploying this capital?
Supply Chain and Capacity Restraints
Delivering $170 million in Q3 represents a major sequential leap. Are there any gating factors or supply chain bottlenecks in Malaysia concerning the specialized thermal components for the Eclipse handler?
HBM Inspection Conversion
The total AI opportunity pipeline was raised to $850 million. Can you break down how much of this increase was driven by Neon High-Bandwidth Memory (HBM) inspection versus Eclipse handlers?