New York, May 22, 2026, 17:01 (EDT)
Super Micro Computer shares rose about 6.3% on Friday, closing at $35.58, as investors bought back into the AI-server supplier even after Taiwanese prosecutors opened a new investigation into suspected illegal exports of high-end servers made by the company. The stock opened at $33.80, touched $35.94 and traded about 39 million shares, market data showed.
That move matters now because Super Micro sits in the middle of the AI hardware chain. AI servers — high-powered systems that combine chips, memory, networking and cooling to train or run artificial-intelligence models — remain one of the market’s favored ways to bet on heavy spending by cloud companies and AI developers.
Nvidia gave that trade fresh air this week. The chipmaker forecast second-quarter revenue of $91 billion, above Wall Street estimates, and said data-center revenue reached $75.2 billion in the latest quarter, reinforcing the view that demand for AI infrastructure is still running hot.
The broader tape helped, too. U.S. stocks ended higher Friday, with the Dow Jones Industrial Average scoring a record close and the S&P 500 notching an eighth straight weekly gain ahead of the Memorial Day weekend.
Still, the day was not clean for Super Micro. Taiwanese prosecutors said on Thursday they were investigating three people suspected of using false documents to export Super Micro AI servers containing Nvidia chips to mainland China, Hong Kong and Macau, where such sales were banned under U.S. controls. Reuters reported that Super Micro and Nvidia did not immediately respond to requests for comment; both companies have said they are committed to export-law compliance.
The case follows U.S. Justice Department charges in March against three people associated with Super Micro, including a co-founder, over an alleged scheme to smuggle at least $2.5 billion of U.S. AI technology to China. U.S. prosecutors did not name Super Micro as a defendant, and the company has said it cooperated with investigators.
Investors instead appeared to focus on demand. Super Micro this month projected fiscal fourth-quarter revenue of $11 billion to $12.5 billion and fiscal 2026 revenue of $38.9 billion to $40.4 billion, after reporting third-quarter net sales of $10.2 billion and net income of $483 million. Chief Executive Charles Liang said the company’s move toward becoming a total data-center infrastructure provider was “accelerating.” SEC
Liang also said Super Micro’s Taiwan, Malaysia and Netherlands sites were “ramping up aggressively.” Chief Financial Officer David Weigand said on the post-earnings call that there had been “no change in allocations” from suppliers including Nvidia, AMD and Intel, according to Reuters. Reuters
The competitive backdrop was sharp. Dell Technologies, a larger rival in AI servers, surged 16.8% to a record close Friday after analysts pointed to momentum in its AI infrastructure business ahead of its May 28 earnings report. That left Super Micro’s gain looking less like a one-stock rebound and more like part of a renewed bid for server makers tied to Nvidia demand.
Carol Schleif, chief market strategist at BMO Private Wealth, captured the mood earlier in the week as chip stocks rallied before Nvidia’s results: “Technology is driving the bus again today, and the AI theme.” eMarketer analyst Jacob Bourne framed the harder question after Nvidia’s report: whether the AI buildout has “durability into 2027 and 2028.” Reuters
But the trade still carries a hard risk. Super Micro said in its earnings release that an independent board review tied to export-control issues could affect forecasts, preliminary results and prior-period results; it also warned that bigger customers, lower margins, tariff pressure and less predictable sales could weigh on results. That is the downside case: demand stays strong, but compliance, margins or customer timing break the stock’s rebound.
U.S. equity markets will be closed Monday for Memorial Day, so the next test comes Tuesday, when investors get another read on whether AI-server demand can keep outrunning the legal overhang around Super Micro.
