NASDAQ:SMCI 4 February 2026 - 26 March 2026

Super Micro Computer shares rose 8.3% to $24.05 despite shareholders filing a proposed class action in San Francisco federal court, alleging the company hid reliance on China sales that violated U.S. export laws. The lawsuit follows criminal charges against co-founder Yih-Shyan Liaw and two others for allegedly routing $2.5 billion in AI servers to China. Super Micro has not been charged and says the conduct broke company policy.

Super Micro Computer shares climbed 2.7% in premarket trading Wednesday to $22.84, rebounding after last week’s sharp drop linked to a $2.5 billion export-control case involving AI servers and China. The company is not a defendant but has placed two executives on leave and accepted a board resignation. Wall Street analysts cut ratings and targets, citing growth and reputation risks. Senators called for further scrutiny late Tuesday.

Super Micro Computer shares rose 5.1% to $21.58 Monday after a Wall Street downgrade and new details in a China export-control case. U.S. prosecutors allege three people tied to the company helped route $2.5 billion in AI tech to China, though Super Micro was not charged. The company put two employees on leave and accepted a board resignation. Analysts warn of reputational risks and possible lost orders to rivals like Dell.

Super Micro Computer shares fell further Monday after a 33% drop Friday, following an export-control indictment naming three former associates. Federal prosecutors allege $2.5 billion in U.S.-made AI servers were illegally routed to China. The company placed two executives on leave, cut ties with a contractor, and named DeAnna Luna acting chief compliance officer. Analysts downgraded the stock and warned of possible business fallout.

Super Micro Computer shares plunged 33.2% to $20.53 after U.S. prosecutors charged co-founder Yih-Shyan “Wally” Liaw and two others with illegally diverting $2.5 billion in AI servers to China. Liaw resigned from the board, and the company said it was not a defendant and had cooperated with investigators. Rival Dell rose 0.8%. Super Micro named DeAnna Luna as acting chief compliance officer.

Super Micro shares rose about 9% to $33.76 in Friday afternoon trading, rebounding after a sharp drop Thursday. The move followed a raised 2026 revenue outlook and strong demand for AI servers, though margin pressure remains. Chip stocks broadly rallied, with the PHLX semiconductor index up 5.5%. Trading volume in Super Micro topped 34 million shares by mid-afternoon.