Semiconductor Test & Inspection Leader Navigating Cyclical Recovery

Cohu, Inc. designs, manufactures, and sells semiconductor test handling systems, thermal subsystems, test contactors, and inspection/metrology equipment. The company's products are essential to the final test phase of semiconductor manufacturing, where individual dies are tested for functionality, speed, and thermal performance before shipment.

Cohu generates revenue through three primary channels: (1) new system sales to OSATs, IDMs, and fabless companies; (2) recurring aftermarket parts and service; and (3) contactor and probe card sales through its Interface Solutions segment. Customers include major semiconductor manufacturers such as Texas Instruments, Infineon, NXP, and leading OSATs including ASE and Amkor.

With approximately 1,900 employees globally and operations spanning the U.S., Asia, and Europe, Cohu serves a customer base concentrated in Asia (~70% of revenue), reflecting the geographic concentration of semiconductor packaging and test operations. The company's scale of roughly $500-600M in annualized revenue positions it as a mid-cap leader in a niche but critical segment of the semiconductor supply chain.

• Near-Term (2026): The semiconductor test market is expected to recover as inventory corrections conclude and foundry utilization returns to healthy levels above 80%. Cohu's book-to-bill ratio has reportedly improved for three consecutive quarters, and management has guided to sequential revenue growth through the year. The automotive and industrial segments, which represent over 40% of Cohu's revenue mix, are showing particular strength as EV adoption drives demand for power semiconductor testing.

• Medium-Term (2027-2028): Several secular tailwinds should drive above-market growth. First, the proliferation of AI accelerators and high-bandwidth memory requires more complex test handling at higher temperatures, favoring Cohu's advanced thermal platforms. Second, the transition to 800V electric vehicle architectures is multiplying the number of SiC power devices requiring test — each EV contains 2-3x more test content than a traditional ICE vehicle. Third, the reshoring of semiconductor manufacturing to the U.S. and Europe creates demand for local test capacity, where Cohu's domestic support infrastructure provides a competitive advantage.

The financial trajectory reflects a classic cyclical downturn and recovery. Revenue declined from a 2023 peak of $712M to an estimated $480M in 2025, driven by weak end-market demand and customer capex deferrals. The current EPS of $-0.83 reflects restructuring charges and under-absorbed fixed costs at reduced volumes. As revenue recovers toward $610M in 2026, operating leverage should drive a dramatic margin expansion — each incremental $100M in revenue carries roughly 40-50% incremental gross margin, given the fixed cost base. Free cash flow generation is expected to accelerate as working capital normalizes and the aftermarket business scales.

The semiconductor test and inspection equipment market is estimated at approximately $8-10 billion annually, growing at 6-8% CAGR driven by increasing device complexity, advanced packaging adoption, and the proliferation of specialized chips for automotive, AI, and IoT applications. Within test handling specifically — Cohu's core market — the TAM is approximately $2.5-3 billion.

Cohu competes primarily with:

• Advantest Corporation — the dominant player in testers and handlers, with significantly larger scale but less focus on the mid-range handler segment
• Teradyne, Inc. — a leader in automated test equipment with a strong position in SoC testing but a smaller handler footprint
• Chroma ATE — a Taiwan-based competitor offering integrated test and handling solutions at competitive price points
• Hon Precision — a smaller but growing handler supplier focused on the Asian OSAT market

Cohu's competitive positioning is strongest in thermal subsystems and high-temperature handling for automotive-grade devices, where its technical expertise and reliability track record command premium pricing. The company's estimated 25-30% share of the handler market positions it as the #2 player behind Advantest, with a particularly strong presence in the power semiconductor and analog test segments.

A discounted cash flow analysis, using conservative assumptions of 8% revenue growth through 2030, a 46% terminal gross margin, 10% WACC, and 2.5% terminal growth, yields an intrinsic value of approximately $58 per share. The DCF is supported by Cohu's strong balance sheet, recurring aftermarket revenue, and the cyclical recovery underway.

On relative valuation, COHU trades at a significant discount to its larger peers on every metric. The 3.2x forward EV/Revenue versus a peer average of 6.1x implies the market is either discounting Cohu's growth prospects or assigning a risk premium for its smaller scale and cyclicality. Given the company's improving order momentum and operating leverage potential, we believe this discount is unwarranted and expect multiple expansion as earnings visibility improves.

• Cyclical Downturn Persistence: The semiconductor industry is notoriously cyclical, and the current recovery could stall if macroeconomic conditions deteriorate or if inventory corrections extend longer than expected. A prolonged downturn would pressure revenue and delay the return to profitability, potentially forcing additional restructuring.

• Customer Concentration: Cohu's top 10 customers represent over 50% of revenue. The loss of a major customer or a shift in their supplier strategy could have a material adverse impact on results. Additionally, the concentration of revenue in Asia (~70%) exposes the company to geopolitical tensions, trade restrictions, and regional economic volatility.

• Extreme Short Interest and Volatility: With 22.81% of the float shorted, COHU is subject to extreme price swings driven by short squeezes and sentiment shifts. While this can create upside opportunities, it also means the stock can decline rapidly if the recovery narrative falters. Beta of 1.60 amplifies market movements in both directions.

• Technology Disruption: The rapid evolution of semiconductor packaging — including chiplet architectures and panel-level packaging — could render existing test handling platforms obsolete. If Cohu fails to innovate at the pace of industry changes, its competitive position could erode. Competition from larger, better-capitalized rivals like Advantest and Teradyne remains an ongoing threat.

• Supply Chain Vulnerabilities: Cohu relies on a complex supply chain for precision components, and any disruption — whether from geopolitical events, natural disasters, or component shortages — could delay shipments and harm customer relationships. The company's manufacturing concentration in Southeast Asia adds geographic risk.