Earnings call transcript: Aehr Test Systems Q4 2025 sees revenue dip, stock climbs

Aehr Test Systems reported Q4 2025 revenue of $14.1 million, missing forecasts, while EPS met expectations at -$0.01. Despite the revenue shortfall and a 15% year-over-year decline, the stock gained 2.36% aftermarket, driven by investor optimism regarding the company's strategic shift and future growth prospects. Notably, AI processor testing now accounts for over 35% of revenue, up from zero, with the company launching the industry's first wafer-level burn-in system for AI processors, a market it estimates to be 3-5 times larger than silicon carbide. Although Aehr temporarily withdrew its FY26 guidance due to tariff uncertainties, it anticipates strong order growth across most segments, signaling continued diversification and significant long-term potential.

Analysis

Aehr Test Systems reported mixed Q4 2025 results, with revenue of $14.1 million missing the $14.8 million forecast and declining 15% year-over-year, while EPS of -$0.01 met expectations. Despite the top-line weakness and an 11% annual revenue drop to $59 million, the stock price reacted positively, gaining 2.36% in aftermarket trading. This investor optimism is primarily driven by the company's significant strategic pivot towards the AI processor testing market, which accounted for over 35% of revenue in fiscal 2025, up from zero the previous year. This diversification has reduced reliance on the silicon carbide market, which now represents less than 40% of revenue compared to over 90% in fiscal 2024. The company's key strategic achievement is the launch of the industry's first wafer-level burn-in system for AI processors, a market management estimates could be 3-5 times larger than silicon carbide. This technology addresses a critical manufacturing cost and yield challenge for complex AI chips. Near-term uncertainty persists, however, as the company withdrew its fiscal 2026 guidance, citing supply chain delays and order timing risks related to tariffs. This is underscored by a decline in non-GAAP gross margin to 34.7% from 51.5% a year prior and a reduction in cash reserves to $26.5 million.

Key Decisions for Investors

• Investors should weigh the significant long-term growth narrative, driven by the company's successful entry and technological lead in the AI processor testing market, against the current financial weakness reflected in the quarterly revenue miss and year-over-year decline.
• Given the withdrawal of formal guidance due to tariff uncertainty, focus should be on tracking execution milestones, particularly the progress of the new AI customer evaluation and follow-on orders from its lead AI customer, which will serve as key validation points for the growth thesis.
• It is prudent to consider the near-term risks, including the acknowledged slowdown in the silicon carbide segment, persistent pressure on gross margins, and the stock's high volatility, indicated by a beta of 2.3.