NEW YORK, May 29, 2026, 18:02 (EDT)
- Alpha and Omega Semiconductor 8.1% lower at $45.35, near the bottom of its $44.66 to $49.95 range for the session.
- The Nasdaq Composite was up 0.2% Friday. Chip names traded mixed. Some power-chip stocks dropped.
- The last operating update from the company put June-quarter revenue around $168 million, give or take $10 million.
Alpha and Omega Semiconductor shares dropped 8.1% to end Friday at $45.35 on Nasdaq. The stock started the session at $49.45 and climbed as high as $49.95 before pulling back near the lows at $44.66 by the close. It was a sharp turnaround late in the week for the stock, which had recently traded close to its 52-week high.
The move came as the rest of the market traded stronger. The Nasdaq Composite ticked up 0.2% while the S&P 500 added 0.22%, lifted by some tech names, Reuters reported.
AOSL has shaken off its old reputation as a quiet power-chip name, trading more like a small-cap semiconductor bounce play now. Shares have a 52-week range of $17.01 to $51.35. Market cap stood around $1.36 billion after Friday, according to Google Finance.
Alpha and Omega makes power semiconductors, the chips that control and move electricity in devices. The company says these chips are used in PCs, graphics cards, data centers, AI servers, smartphones, industrial gear, and power supplies, according to its latest earnings release.
Chang moves 39,780 shares to trust in latest Form 4 filings Ownership filings out over the last two sessions were just Form 4s, not new business updates. Director and 10% holder Mike F. Chang reported moving 39,780 common shares to the Chang Trust at no cost, according to an SEC filing. He still counts as the beneficial owner of those trust shares.
Director Claudia Chen sold 4,061 shares on May 22, according to a Form 4 posted this week. The weighted average prices were $39.4742 and $40.5406, and the sale was made under a Rule 10b5-1 trading plan. Chen kept 28,192 shares after the second transaction, the filing said.
AOSL’s drop was sharper than the rest, but other names also finished lower. Onsemi gave up 2.5%. Diodes slid 4.2%, while Monolithic Power Systems shed 4.1%. The iShares Semiconductor ETF, which tracks the sector, edged down just slightly.
Mixed results from the company’s May 6 earnings report. Fiscal Q3 revenue came in at $163.8 million, a 0.9% rise from last quarter, off 0.5% compared to a year ago. GAAP net loss was $13.8 million. Non-GAAP loss per share hit 28 cents. Non-GAAP numbers leave out things like stock-based comp and other adjustments, and don’t match GAAP.
AOS is looking for June quarter revenue of about $168 million, give or take $10 million. The company put GAAP gross margin guidance at 22.3%, again plus or minus one point. Non-GAAP gross margin was forecast at 23%, plus or minus one as well.
Chief Executive Stephen Chang linked most of the story to advanced computing, such as AI servers. In prepared remarks, he said demand is “broadening” for AI data-center uses. He also mentioned medium-voltage MOSFETs, transistors used in server power. SEC
There’s a catch. Chang said visibility for the second half is “somewhat limited,” and the firm pointed to memory prices and consumer demand as possible risks for PCs and smartphones. Those markets could weaken, or AI design wins could take longer to reach volume shipments, making it harder to get the margin boost expected. SEC
Still, AOSL ended the short week up about 9%, even with Friday’s drop. Shares finished at $41.72 on May 22 and $45.35 on Friday.
