# Super Micro's sales quadrupled to $19.9 billion and it raised its year to $82 billion. One customer was 44% of it

> Super Micro reported preliminary fiscal Q1 revenue of $19.9 billion, up 298%, and lifted its full-year forecast to $72–82 billion on AI rack demand. The fine print matters as much as the headline. Margins are down sharply, operating cash flow was negative, and a single data center customer bought 44% of everything it sold.

Published Nov 4, 2026 by TechMeasured Staff · Business · Canonical: https://techmeasured.com/business/super-micro-q1-fy27-19-9-billion-revenue-one-customer-44-percent-cash-burn

**Super Micro Computer** reported net sales of **$19.9 billion** for its fiscal first quarter (July to September 2026) on November 3. That is nearly four times the $5.0 billion it booked a year earlier and up from $11.1 billion last quarter. The company also raised its fiscal 2027 revenue forecast to **$72–82 billion**, from $65–72 billion.

Why it matters: Super Micro builds the racks that turn Nvidia and AMD accelerators into working AI clusters. Its numbers are a direct read on how fast AI hardware is actually getting installed. This quarter they say demand is still accelerating. They also show what that growth costs a hardware assembler: thinner margins, negative cash flow and heavy dependence on a very small number of buyers.

Note that the figures are **preliminary and unaudited**. The 8-K says they could change before the quarter is formally closed.

## The quarter in numbers

| Metric | Q1 FY27 | Q4 FY26 | Q1 FY26 |
|---|---|---|---|
| Net sales | $19.9B | $11.1B | $5.0B |
| GAAP gross margin | 12.7% | 17.5% | 9.3% |
| Net income | $1.59B | $1.18B | $168M |
| GAAP diluted EPS | $1.75 | $1.62 | $0.26 |
| Non-GAAP diluted EPS | $1.81 | — | $0.35 |
| Operating cash flow | –$434M | — | –$918M |

*Source: Super Micro 8-K, November 3, 2026.*

The beat was large. Super Micro's original guidance for this quarter was $14.5–15.5 billion. On October 20 it pre-announced $18.5–19.5 billion and came in above that range too. Earnings Whispers put the analyst consensus at **$15.77 billion** in revenue and **$1.16** in non-GAAP EPS.

Part of the jump won't repeat. On the call, CFO Mark Long said about **$2.3 billion** was catch-up revenue from deployments originally scheduled for earlier quarters. That puts underlying sales nearer $17.6 billion. Long said the new full-year range doesn't assume the catch-up happens again.

## What's driving it

AI products were about **71%** of revenue, up from 59% the quarter before. Sales to OEMs and large data centers were $14.7 billion, about 74% of the total. The US accounted for 80%.

CEO Charles Liang said the company is "among the first to market shipping NVIDIA Vera Rubin NVL72 racks," built on its liquid-cooled rack platform. He also cited strong demand for AMD's MI350 and MI355X and said AMD Helios and MI450 systems are coming. Liang said Super Micro is targeting capacity of **more than 8,000 racks a month by December**, including over 4,000 direct-liquid-cooled racks.

## The three things to watch

**1. One customer is 44% of revenue.** Long said a single large data center customer accounted for 44% of Q1 sales, up from 28% for all of fiscal 2026. Two customers held 49% and 17% of accounts receivable. Long said he expects concentration to stay elevated while those build-outs continue. Super Micro did not name the customer.

**2. Margins are compressing as AI grows.** GAAP gross margin fell from 17.5% to 12.7% in one quarter, which the company attributed to AI mix. Guidance for the full year is **11.8–12.2%**, implying a weaker second half as AI rises toward the 70–80% of revenue management expects. Earnings Whispers notes non-GAAP operating margin fell to 10.9% from 14.3%.

**3. Growth is consuming cash.** Operations used **$434 million**, and free cash flow was about –$481 million after capital spending. Inventory rose to **$15.1 billion** from $12.9 billion. Cash ended at $6.9 billion against $8.6 billion of bank debt and convertible notes, so net debt widened to $1.7 billion from $1.2 billion. Long said there are no current plans to raise equity. He pointed to a new $1.8 billion receivables purchase facility and about $3.1 billion of customer prepayments booked as deferred revenue.

## Guidance

| | Q2 FY27 guide | FY27 guide |
|---|---|---|
| Revenue | $19.5–21.5B | $72–82B (was $65–72B) |
| Gross margin | 12.0–12.5% | 11.8–12.2% |
| Non-GAAP EPS | $1.66–1.90 | — |

Earnings Whispers says Liang called the Q2 range "very conservative."

## Who should care

If you're tracking the AI build-out, Super Micro's account is that Vera Rubin-generation racks are already shipping and that demand hasn't paused (management cited a record backlog but gave no dollar figure). If you're looking at Super Micro itself, the story is less simple. About 70% of its business is now low-margin AI hardware, and nearly three-quarters goes to OEMs and large data center operators. When one customer's build-out slows, the whole company feels it. Watch the audited 10-Q for any changes to these preliminary figures. Also watch whether gross margin holds in the 12% range and whether operating cash flow turns positive as the inventory built for this quarter ships.


## Sources

1. [Super Micro Computer — Form 8-K, Q1 fiscal 2027 preliminary results (via StockTitan)](https://www.stocktitan.net/sec-filings/SMCI/8-k-super-micro-computer-inc-reports-material-event-c9a04cf91581.html)
2. [The Motley Fool — Super Micro (SMCI) Q1 2027 earnings call transcript](https://www.fool.com/earnings/call-transcripts/2026/11/04/super-micro-smci-q1-2027-earnings-call-transcript/)
3. [Earnings Whispers via Finviz — Supermicro crushes revenue expectations and lifts FY27 outlook, but margins, concentration and cash remain the debate](https://finviz.com/news/415076/supermicro-crushes-revenue-expectations-and-lifts-fy27-outlook-but-margins-concentration-and-cash-remain-the-debate)
4. [Super Micro Computer — Q1 fiscal 2027 preliminary business update, October 20, 2026 (Form 8-K, SEC)](https://www.sec.gov/Archives/edgar/data/0001375365/000137536526000025/smcifirstquarterfy2027busi.htm)