Shares of Alpha & Omega Semiconductor (AOSL) experienced a significant 24-hour plunge of 12.44% following the release of its fiscal first quarter 2026 financial results. The semiconductor company's stock took a hit despite reporting better-than-expected earnings, as investors focused on disappointing revenue guidance for the upcoming quarter.

For the fiscal first quarter ended September 30, 2025, Alpha & Omega reported adjusted earnings per share of $0.13, surpassing the mean analyst expectation of $0.09. The company's revenue for the quarter came in at $182.5 million, showing a slight increase of 0.3% compared to the same period last year. However, this figure fell short of analyst projections of $183.20 million.

The primary driver behind the stock's sharp decline appears to be Alpha & Omega's revenue guidance for the second quarter. The company stated it expects Q2 revenue to be around $160 million, which likely falls below market expectations. This projection suggests potential challenges in the company's near-term growth prospects or headwinds in the semiconductor industry, leading investors to reassess their outlook on AOSL. The market's negative reaction underscores the importance of forward-looking statements in shaping investor sentiment, even when current quarter results exceed expectations.