On October 20, Supermicro released preliminary results for the first quarter of fiscal 2027 (ended September 30, 2026), saying revenue is expected to be between $18.5 billion and $19.5 billion. The company's earlier guidance was $14.5 billion to $15.5 billion, so the midpoint is about 27% higher. The company attributes the increase to stronger demand for AI platforms, and says gross margin will also beat its forecast because of changes in customer and product mix. All figures are unaudited estimates, but because both sales volume and margin came in above guidance, we can look at how gross profit, meaning revenue minus cost of sales, might change.
Investing.com reported that the stock rose 12% in after-hours trading following the announcement. That reflects the move at the time the October 20 article was published, not the next day's closing price or the full after-hours change.
Revenue about 27% above company guidance
Even the low end of the new revenue range, $18.5 billion, is $3 billion above the top of the previous range, $15.5 billion. Compared with the guidance given in the August 11 earnings release, the entire range has shifted upward. The comparison is between the company's own estimates for the same quarter, so it differs from growth versus the prior year or versus market expectations.
| Metric | Prior company guidance | New preliminary estimate | Change at midpoint |
|---|---|---|---|
| Revenue | $14.5B–$15.5B | $18.5B–$19.5B | $15.0B → $19.0B, up about 26.7% |
| Gross margin | 10.4%–10.8% | 12.0%–12.5% | 10.6% → 12.25%, up 1.65 points |
Source: Supermicro's October 20 preliminary results. Midpoints and changes are calculated from the published ranges.
Revenue and gross margin measure different things. Revenue is the dollar value of products sold, while gross margin is the share left after subtracting cost of sales from revenue. Even if revenue grows, a lower margin would slow the growth in gross profit.
This time, both came in above the prior guidance. The company gives two separate explanations, though: revenue was driven by higher demand for AI platforms, and gross margin by changes in customer and product mix. No breakdown of which customers or products increased was provided, so it is not possible to conclude that strong sales of a particular GPU or price increases improved the margin.
Splitting the gross profit upside into two parts
Multiplying the midpoints of revenue and gross margin gives gross profit of $1.590 billion from the prior guidance and about $2.328 billion from the new preliminary figures, a difference of about $738 million. This is not a gross profit figure or new profit forecast published by the company. It is a simple estimate by our editors that combines the midpoints of the two ranges.
To see how much of the increase can be explained by larger sales volume, we first hold gross margin at the previous 10.6% and change revenue only, from $15.0 billion to $19.0 billion. Next, we keep revenue at $19.0 billion and raise gross margin to 12.25%. Calculated in these two steps, the results are as follows.
| Estimate step | Calculation | Estimated gross profit change | Gross profit increase |
|---|---|---|---|
| Change revenue only | ($19.0B − $15.0B) × 10.6% | $1.590B → $2.014B | $424M |
| Then change margin | $19.0B × (12.25% − 10.6%) | $2.014B → $2.3275B | $313.5M |
| Total | $2.3275B − $1.590B | $1.590B → $2.3275B | $737.5M |
This is an estimate comparing the prior guidance and the new estimate for the same quarter, based on the ranges published in Supermicro's October 20 preliminary results. Unrounded values are used in the table.
The $737.5 million gross profit increase at the midpoints splits into $424 million from higher revenue at the old margin and $313.5 million from the higher margin at the new revenue level. That is about 57.5% and 42.5% of the increase, respectively.
In this calculation, the margin step accounts for about 40% of the total increase. It is easy to miss if you focus only on revenue growth, but at a sales scale of $19.0 billion, a 1.65-point difference equals hundreds of millions of dollars in gross profit. Expressed in profit terms, it is easier to see why the company cited customer and product mix alongside demand.
However, the roughly 40% share is not the actual profit breakdown generated by customers or products. Because revenue is raised first and the margin changed second, the overlap where both change is included on the margin side. Reversing the order would change the allocation, and the product of the two midpoints is not guaranteed to equal final gross profit. This is a calculation to check how the two figures affect profit, and should be distinguished from a measurement of the company's actual performance drivers.
What to check next: the makeup of customers and products
In the August 11 release, gross margin for the previous quarter, ended June 2026, was 17.5%. The new 12.0%–12.5% range is lower than that. In addition, the preliminary release does not state whether the figures are on a U.S. GAAP or adjusted basis, so a strict comparison would require aligning the accounting categories. The "improvement" this time should be read as an upside versus the prior company guidance for the same September quarter.
Nor can net income or earnings per share be derived directly from this gross profit estimate. Operating expenses and other costs must be subtracted from gross profit, and interest and taxes would also have an effect. The announcement gives no new estimates for such profit measures or for cash flow, so how much of the revenue upside will translate into final profit or cash will have to be confirmed at the next earnings report.
The full-year outlook also needs to be treated separately. Supermicro's August guidance for fiscal 2027 revenue was $65 billion to $72 billion, but the October 20 preliminary release does not mention it. It provides no basis for adding the first-quarter upside to the full-year guidance, nor for concluding that the company left it unchanged.
The earnings call is scheduled for November 3 at 5:00 p.m. U.S. Eastern Time (7:00 a.m. on November 4 in Japan). The preliminary figures are management's estimates, have not gone through procedures such as audit or review by an accounting firm, and may be revised as the closing process and financial statements are finalized.
What exactly changed in the customer and product mix, and under what conditions can a gross margin in the 12% range continue? If the November results provide that breakdown and the related costs, it will be possible to judge more fully than from this revenue preview how far the expansion in AI-related sales can lift Supermicro's profit.