Supermicro (SMCI) Q1 2027 earnings review
Supermicro raises its sales plan, while customer deposits cut cash burn
Supermicro, which builds liquid-cooled server racks for artificial intelligence data centers, delivered record sales while customer prepayments stemmed its cash burn. First-quarter revenue nearly quadrupled from a year ago to $20 billion, including $2.3 billion of delayed shipments from earlier periods, and chief executive Charles Liang raised the full-year sales plan. However, by our math the updated forecast points to lower revenue and gross margin in the second half of the year.
| Underlying revenue (excluding $2.3B catch-up) | $17.6B +252% from a year ago ($19.9B total) |
|---|---|
| Gross margin, excluding one-offs | 12.8% up from 9.5% a year ago; down from 17.6% in Q4 |
| Customer prepayments (deferred revenue) | $5.67B +$3.05B from last quarter |
| Full-year revenue outlook | Raised $8.5B middle of the range: $77B (+97% growth) |
⚖️ Verdict: 🟢 Bullish
The story got better because customers paid $3.1 billion upfront for upcoming servers, cutting the cash conversion cycle by 52 days and nearly halting the company's operating cash burn. That eases the biggest financial strain from its rapid expansion. One caution: a single customer accounted for 44% of sales, and heavy shipments of large AI clusters pushed gross margin down almost 5 percentage points from last quarter.
The question now is whether bundled software, liquid cooling, and setup services can keep gross margin above 12% as mega-cluster shipments grow. Either those services protect profitability, or buyer bargaining power pushes second-half margin down toward the 11.5% implied by the annual plan. Second-quarter gross margin and enterprise sales mix will tell.
🐂 Bull Case
Record AI Server Shipments Lifted The Outlook
Supermicro, which builds liquid-cooled server racks for data centers, nearly quadrupled its first-quarter revenue from a year ago to $19.9 billion. Finance chief Mark Long said that "approximately $2.3 billion represented deployments originally scheduled for earlier periods due to customer and data center readiness". Even without those delayed shipments, underlying sales reached $17.6 billion, topping the original $14.5 billion to $15.5 billion plan by more than $2 billion.
- Large data center and appliance sales: $14.7 billion, up 321% from a year ago and 167% from last quarter
- United States revenue: 80% of total sales, up 771% from a year ago
- Operating expenses: 2.4% of revenue, down 3.3 percentage points from a year ago
Because research and overhead costs grew much slower than sales, operating profit rose more than elevenfold to $2.06 billion. Chief executive Charles Liang also began shipping racks built around Nvidia's new Vera Rubin chips and raised the full-year revenue forecast by $8.5 billion at the middle of the range, to between $72 billion and $82 billion.
What to watch: second-quarter revenue against the $19.5 billion to $21.5 billion outlook. Hitting that target without delayed shipments from prior quarters would confirm that underlying demand runs near $20 billion a quarter.
Customer Prepayments Funded The Working Capital Build
Rapid growth burned $6.8 billion of operating cash across fiscal 2026 as the server maker bought chips well before customers paid. In the first quarter, operating cash burn narrowed to $434 million even as revenue jumped by $8.8 billion from last quarter. Deferred revenue — cash customers pay before receiving their servers — rose by $3.1 billion to $5.7 billion, "an overwhelming majority of which reflects customers paying in advance of delivery", Long said.
The cash conversion cycle — the time between paying suppliers for parts and collecting cash from buyers — dropped by 52 days to 97 days. Faster collections cut days of sales outstanding from 59 days to 36 days, while inventory turnaround improved from 119 days to 74 days. That offset a 16-day drop in supplier payment terms, which used about $3 billion of cash as the company paid chip vendors faster.
What to watch: the cash conversion cycle in the second quarter, which Long expects to stay within 10% of 97 days. Holding below 107 days while revenue passes $20 billion would show that customer deposits can fund growth without new stock sales.
🐻 Bear Case
Large AI Server Deals Cut Gross Margin
Liang argued that Data Center Building Block Solutions (DCBBS) — Supermicro's bundled hardware, cooling, management software, and on-site setup services — is lifting profitability. Yet gross margin excluding one-offs fell 4.8 percentage points from last quarter to 12.8%, as cost of sales rose 4.7 percentage points to 87.3% of revenue. "The sequential decline is not evidence that AI platform revenue lacks margin. It reflects which customers took delivery in which order," Long said.
The numbers from the quarter show that product mix still drives profitability down when big AI clusters ship. AI systems rose from 59% of revenue in the fourth quarter to 71%, while higher-margin enterprise and channel sales fell 12% from last quarter to $4.9 billion, or 25% of revenue. Furthermore, management did not disclose revenue or profit figures for DCBBS or its software suite.
Long's own outlook confirms the pressure: "With Q1 at 12.8% and Q2 guided to 12% to 12.5%, the full year range implies gross margin in the second half below the first half." By our math, the 11.8% to 12.2% full-year plan points to roughly 11.5% gross margin in the second half as AI shipments rise toward 80% of sales.
What to watch: enterprise and channel revenue share in the second quarter. A drop below 25% alongside gross margin near 12.0% would show that software and services are not yet big enough to offset mega-cluster pricing.
One Customer Accounted For 44% Of Sales
Supermicro's growth is resting on a single buyer. One large data center customer accounted for 44% of first-quarter revenue — about $8.8 billion by our math — up from 28% across all of fiscal 2026. At the end of the quarter, just two customers made up 49% and 17% of the company's $9.7 billion in unpaid customer bills.
Long said this concentration reflects the scale of modern AI build-outs, where one deployment can top the company's entire quarterly sales from a year ago. While the buyer is creditworthy and pays quickly, relying on one customer for nearly half of revenue gives that buyer heavy bargaining power over server prices and ties Supermicro's quarterly results to a single deployment schedule.
What to watch: single-customer revenue share in the second-quarter filing. A reading above 40% for a second straight quarter would show that new enterprise partnerships with Cisco, NetApp, and Nutanix are not yet diversifying the top line.
Power Delays And Shortages Cap Second-Half Growth
Despite record orders, the full-year revenue plan of $72 billion to $82 billion points to a step-down after December. With $19.9 billion delivered in the first quarter and $20.5 billion planned at the middle of the second-quarter range, the outlook leaves about $36.6 billion for the second half of the year by our math — down roughly 10% from the first half's $40.4 billion.
Liang cited chip and component shortages, while Long noted that "The binding constraints on AI build-outs across this industry right now are land, power and data center shells." Because Supermicro cannot book revenue until a customer's building has power and cooling ready to receive the racks, construction delays outside its control govern when its inventory turns into sales.
What to watch: third-quarter revenue outlook when the company reports in February. A forecast below $19 billion would confirm that data center power delays or chip shortages are slowing deliveries in the second half.
Risks This Quarter Didn't Answer
Three standing governance, accounting, and capital-structure concerns remained unresolved in the first-quarter materials.
- Preliminary unaudited numbers: the release noted that "its financial closing procedures for the quarter ended September 30, 2026 are not yet complete", and management gave no update on the board's export-control review or government subpoenas.
- Common shareholder dilution: preferred dividends and earnings allocated to preferred stock took $327 million of the $1.59 billion GAAP net profit, while diluted shares rose 13% from a year ago to 749 million.
- Unverified software and DCBBS profit: management did not disclose DCBBS revenue or profit share, leaving its target of 20% of net income within two years impossible to track.
💲 Other KPIs
Inventories rose 16.7% from last quarter, or $2.16 billion, to support upcoming server shipments. Because revenue grew much faster, inventory turnaround improved by 45 days to 74 days. Chief executive Charles Liang aims to cut turnaround time to 50 days over coming quarters, while first-quarter inventory write-downs fell to $14.2 million from $36.2 million a year ago.
By our math, net debt — total bank debt and convertible notes of $8.65 billion minus $6.90 billion in cash — rose from $1.20 billion at the end of June. Operating cash outflow of $434 million, $63.7 million of preferred stock dividends, and $81.9 million of net loan repayments reduced the cash balance by $624 million during the quarter.
🔮 Guidance
Raised. The middle of the full-year sales plan moved up $8.5 billion, or 12%, pointing to 97% growth over fiscal 2026. By our math, after Q1's $19.9 billion and Q2's planned $20.5 billion, the forecast leaves $36.6 billion for the second half — up 71% from a year ago, but 10% below the first half because management did not assume rising component prices or repeat catch-up shipments.
New. The plan calls for $20.5 billion at the middle of the range, up 62% from last year's $12.7 billion second quarter and up 3% from the first quarter. Stripping out the $2.3 billion of delayed shipments that landed in the first quarter, the second-quarter plan represents 16% sequential growth in underlying sales.
New. Gross margin is planned to dip by about half a percentage point from the first quarter's 12.7% GAAP and 12.8% excluding one-offs, as large AI server deployments continue to make up most of the shipments.
New. Management issued a full-year gross margin target averaging 12.0%, up from 10.8% GAAP in fiscal 2026. By our math, combining the first-half figures with the full-year midpoint leaves second-half gross margin near 11.5%, as AI server share moves toward 80% of total revenue.
New. At the middle of the range ($1.71), GAAP profit per share would nearly triple from $0.60 a year ago, while edging down 2% from the first quarter's $1.75 on a slightly lower gross margin and a 753 million diluted share count.
New. The middle of the range ($1.78) is up 158% from $0.69 a year ago and down 3 cents from the first quarter's $1.81. The forecast excludes $89 million of stock-based pay net of tax and assumes 769 million diluted shares.
❓ Key Questions
How much revenue and profit did DCBBS generate in Q1?
Management has set a target for Data Center Building Block Solutions to provide at least 20% of net income within two years, but has not reported its sales or profit contribution since the third quarter of fiscal 2026.
Why are closing procedures still incomplete at earnings release?
For a second straight quarter, Supermicro published its quarterly financial tables as preliminary and unaudited because closing procedures were not finished, leaving investors without auditor-reviewed figures on release day.
When will the board finish its independent export-control review?
Prior filings noted an independent board review into alleged export-control issues alongside government subpoenas, which could affect prior and preliminary results, yet management gave no update on the call.
Will supplier payment terms recover from 13 days?
Days payable outstanding dropped from 29 days in the fourth quarter to 13 days in the first quarter, consuming roughly $3 billion of working capital as the company paid chip suppliers faster.