Aehr Test Systems (AEHR) saw its stock plunge 5.07% intraday on Friday, following the release of its fiscal Q2 earnings report, which revealed a significant revenue miss and a swing to a net loss.

The semiconductor test supplier reported Q2 revenue of $9.88 million, falling short of the $11.59 million analyst consensus estimate. The company also posted a net loss of $3.23 million, compared to a loss of $1 million in the same period last year. Adjusted net income was a loss of $1.29 million. Investors reacted negatively to the weaker-than-expected results, as well as the company's cautious outlook for the second half of fiscal 2026, projecting revenue between $25 million and $30 million and a non-GAAP net loss per share.

CEO Gayn Erickson acknowledged the softer revenue but highlighted progress in strategic segments like wafer-level burn-in and packaged-part burn-in. However, the market's focus remained on the earnings miss and the widening loss, driving the stock lower.