Super Micro Computer stock jumps 17% on $4B sales forecast hike, but analysts stay cautious

Super Micro Computer shares rose up to 17% in extended trading Tuesday after the AI server maker raised its quarterly sales forecast by $4 billion, though analysts remain cautious about cash flow sustainability. The company now expects September-quarter revenue of $18.5 billion to $19.5 billion, up from prior guidance of $14.5 billion to $15.5 billion, with projected gross margin improving to 12%–12.5%. Management attributed the revision to stronger demand for AI platforms, and shares of Dell and Hewlett Packard Enterprise also gained in sympathy. Analysts note the company consumed about $6.81 billion in operating cash during fiscal 2026, raising concerns that higher sales may not translate into durable profits. Full results due November 3 will test whether the revenue surprise reflects repeatable demand or timing, with Wall Street consensus rating at Hold.