Super Micro preliminary results smash guidance on AI servers

Super Micro preliminary results gave the AI hardware trade a lift on Tuesday, Oct. 20. The server maker said revenue for the quarter that ended Sept. 30 will be $18.5 billion to $19.5 billion, well above its earlier guidance of $14.5 billion to $15.5 billion and the roughly $15 billion analysts expected, according to Bloomberg data.

What happened

The company expects a gross margin of 12% to 12.5%, compared with guidance of 10.4% to 10.8%. It credited the revenue upside mainly to demand for AI platforms and said the margin gain came from customer and product mix, according to a filing cited by Wall Street Observer.

The figures are unaudited and may change once the quarter is closed. Super Micro gave no reason for releasing them early and will hold its full results call on Nov. 3.

Shares rose about 12% in extended trading after closing at $32.47, Bloomberg reported, while Wall Street Observer put the after-hours gain at 15.1%. The stock had fallen about 28.6% over eight sessions to Oct. 19 during the chip selloff.

Why it matters

The midpoint of $19 billion would be about 27% above the earlier midpoint and nearly four times revenue of about $5.02 billion a year earlier, Wall Street Observer calculated. Super Micro's servers use Nvidia chips, so a beat of this size suggests hyperscaler and neocloud orders held up despite worries about how AI build-outs are financed.

That debate hit chip stocks hard last week, as our chip index losing streak report detailed, and analysts have compared the cycle to past booms in our AI capital cycle warning coverage. Super Micro preliminary results offer evidence that spending is still flowing into hardware.

The sequential jump is just as large. Revenue in the quarter to June was $11.12 billion, so the new midpoint implies growth of about 71% in three months. Gross margin a year earlier was about 9.3%. Super Micro's market value was around $21.3 billion at Tuesday's close, Wall Street Observer said, and analysts expect earnings of $1.02 a share for the quarter.

The company also faces legal noise. A probe alleged that a co-founder and two other people illegally shipped servers to China; Super Micro has not been charged, and an independent review found senior management had no knowledge of the alleged scheme, Bloomberg noted.

What's next

Volume confirmed the interest. Before the release, shares rose 1.1% during regular trading, with about 41.2 million changing hands, above its 30-day average of roughly 34 million, according to Wall Street Observer.

The read-across helped Asia on Wednesday, CoinDesk reported, with South Korea's Kospi up 3.7% and Nasdaq 100 futures 1% higher after strong numbers from SpaceX and Super Micro. Details of the update are in The Business Times report.

The shares are still well below their highs. Even after the late jump, the stock sat under its 52-week peak of $56.60 from October 2025, though far above the $19.48 low it hit in March.

Investors will want margins and guidance on Nov. 3. Low-teens gross margins leave little room for error, so the final numbers will show whether the Super Micro preliminary results hold up.