Recently, AI hardware stocks have remained under pressure, but a preliminary earnings update from Super Micro Computer has shifted after-hours sentiment. Revenue is expected to grow 279% year over year, and the gross margin has also exceeded prior guidance; however, market concerns persist about whether the substantial investments in AI infrastructure can continue to deliver returns.
AI server manufacturer$Super Micro Computer (SMCI.US)$After the market closed on Tuesday, the company reported preliminary quarterly results showing both revenue and gross margin significantly above prior expectations, underscoring that demand for AI infrastructure continues to grow rapidly.
Subsequently, the company's stock price rose by about 14% in after-hours trading, boosting AI‑related stocks such as Dell, HP Inc., NVIDIA, and AMD. In pre-market trading on Wednesday, the company's shares gained 16%.
Super Micro Computer expects its revenue for the first quarter of fiscal year 2027, ending September 30, to be between $18.5 billion and $19.5 billion, significantly higher than the previously guided range of $14.5 billion to $15.5 billion. Analysts surveyed by FactSet had, on average, forecast revenue of approximately $14.9 billion.
Based on the midpoint of the latest guidance range, $19 billion, Super Micro Computer is expected to post quarterly revenue growth of approximately 279% year over year, nearly four times that of the same period last year. Compared with the original guidance midpoint of $15 billion, the latest estimate represents an increase of about 27%.
The company also raised its profitability outlook, forecasting a quarterly gross margin of 12% to 12.5%, compared with the previous forecast range of only 10.4% to 10.8%. During Super Micro Computer's earlier period of rapid growth, profit margins have consistently been a key focus for investors; this time, with both revenue and gross margin surpassing prior expectations, market reaction to demand for AI servers has intensified further.
Super Micro Computer closed at $32.47 during Tuesday's regular trading session, and after the preliminary earnings report was released, its after-hours gain briefly approached 14%. As of the time some media outlets were compiling their figures, the stock was still up nearly 13% in after-hours trading.
Dell and HP Inc. rose in after-hours trading.
Super Micro Computer primarily assembles servers and data center systems around products from chip suppliers such as NVIDIA and AMD, and its performance is often regarded by the market as one of the indicators for gauging demand for AI server procurement and data center construction.
Evercore ISI analyst Amit Daryanani said that the data disclosed by Super Micro Computer this time is a positive signal for AI computing demand, especially since revenue exceeded expectations while gross margin also surpassed the previous guidance.
Darianani stated that if Super Micro Computer ultimately achieves a gross margin of 12% to 12.5%, it would be "an impressive achievement." He noted that its competitor Dell previously commanded a certain pricing premium in the AI server segment; therefore, as Super Micro Computer rapidly expands its revenue while simultaneously improving its gross margin, it has attracted additional market attention.
Following the release of Super Micro Computer's earnings update, other server vendors saw synchronized gains, with Dell rising more than 6% in after-hours trading. The rally also spread to the semiconductor sector, as NVIDIA, AMD, Micron Technology, and Marvell Technology all posted 2–3% after-hours increases, providing some relief to AI chip and semiconductor stocks that had been under pressure recently.
AI hardware procurement remains robust, and the market continues to focus on return on investment.
The latest data from Super Micro Computer indicate that, as of the quarter ending September, customer purchases of high-priced AI servers and data center equipment have not slowed significantly. According to the company's preliminary estimates, its quarterly sales volume not only far exceeds previous expectations but also shows a substantial year-over-year growth rate.
Recently, semiconductor and AI‑infrastructure stocks have remained volatile. The Philadelphia Semiconductor Index had fallen for eight consecutive sessions before rebounding 1.6% on Monday; however, it slipped another 0.3% during Tuesday's regular trading session. Market attention in the AI sector has shifted from hardware order growth to whether data‑center investments can ultimately generate returns sufficient to offset their substantial capital costs.
Some investors are also focusing on AI cloud computing companies that rely on debt financing for expansion. The financing and credit conditions of emerging cloud service providers like CoreWeave have recently become market focal points, while high inflation and rising financing costs have further increased funding pressures on large-scale AI infrastructure projects.
Therefore, Super Micro Computer's revenue significantly exceeded expectations, confirming its strong order intake and delivery performance; however, this does not yet directly indicate a synchronized increase in demand across the entire semiconductor industry. The company may have secured orders from competitors, or it may have delivered higher‑priced systems, and some of the chips used in its servers could also have come from purchases completed in previous quarters.
This preliminary update reveals still limited information. At present, it remains unclear how much of Super Micro Computer's revenue for the quarter ending September came from large traditional cloud computing companies, and how much came from new large-scale compute purchasers such as CoreWeave and SpaceX.
Super Micro Computer plans to officially announce its fiscal first-quarter 2027 results on November 3, at which time it is expected to disclose a more comprehensive revenue structure, profitability, and business outlook.