Super Micro Computer shares rallied 12% to 16% in after-hours trading on October 20, 2026, after the AI server maker released preliminary first-quarter results for the period ended September 30. The company raised its revenue guidance to between $18.5 billion and $19.5 billion, well above its previous forecast of $14.5 billion to $15.5 billion and analyst consensus of approximately $15 billion. Gross margin outlook was lifted to a range of 12% to 12.5%, up from 10.4% to 10.8%, citing favorable customer and product mix. Dell Technologies, Hewlett Packard Enterprise and Nvidia also saw their shares rise by more than 5% and around 3% respectively, following the announcement. Super Micro set fiscal 2027 revenue targets at $65 billion to $72 billion.
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