Cerebras Selloff Tests Investor Faith in Surging AI Demand

Cerebras’ AI Demand Story Meets a Margin Test

Cerebras Systems (CBRS) came under heavy selling pressure following its second-quarter report, with shares falling more than 10% Thursday after dropping as much as 17% in premarket trading. The AI chipmaker reported GAAP revenue of $180.1 million, while its core revenue metric reached a record $209.9 million, up 103% year over year.

The contrast within the report was significant. Core cloud and other services revenue surged 287% to $127.7 million, remaining performance obligations reached $25.4 billion, and management raised its fiscal 2026 core revenue outlook. At the same time, Cerebras posted a $450.5 million GAAP net loss and expects core gross margin to decline further in the third quarter before recovering.

Key Points

• Cerebras reported record core revenue of $209.9 million, up 103% year over year, as core cloud and other services revenue surged 287% to $127.7 million.
• Core gross margin fell to 40.6% from 46.5% in Q1, with management forecasting a further decline to 38%–40% in Q3 before an expected Q4 recovery.
• Remaining performance obligations reached $25.4 billion and Cerebras raised its 2026 core revenue outlook, but the scale of its infrastructure expansion is putting execution and profitability under greater scrutiny.

Cloud Inference Growth Reshapes the Cerebras Business

The strongest part of the quarter was Cerebras' rapidly expanding cloud business. Core cloud and other services revenue reached $127.7 million, up 287% from a year earlier, as demand for fast AI inference services and the company's OpenAI deployment continued to ramp.

The growth reflects Cerebras' transition from relying primarily on hardware sales toward deploying its proprietary technology through cloud infrastructure. The company has also established relationships with Amazon (AMZN) and Advanced Micro Devices (AMD), while its wafer-scale processors compete for AI workloads in a market led by Nvidia (NVDA).

Cerebras' remaining performance obligations, or RPO, stood at $25.4 billion. RPO represents contracted business that has not yet been recognized as revenue, giving investors a measure of future revenue commitments.

Management said that figure does not include backlog from AWS or other hyperscalers.

Infrastructure is expanding alongside demand. Cerebras has secured more than 600 megawatts of data-center capacity that is either operational or scheduled through the end of 2027, while its broader opportunity pipeline is measured in gigawatts.

Manufacturing capacity is also expected to increase more than tenfold during 2026. Cerebras expects core revenue to more than triple in 2027.

Why Did Cerebras Stock Fall?

The selloff reflected a sharp distinction between the company's longer-term demand indicators and its current financial performance.

GAAP revenue of $180.1 million came in below the $194 million range of consensus estimates included in the supplied material. Cerebras' core revenue was considerably stronger at $209.9 million, but that non-standard measure adjusts reported revenue for pass-through revenue and customer warrant amortization.

Profitability remains another area of focus. Cerebras reported a GAAP net loss of $450.5 million, or $2.98 per share, compared with net income of $309.5 million in the year-earlier period. Stock compensation accounted for $377 million of the latest quarterly loss.

Underlying operating results showed improvement. Core operating loss narrowed to $33.6 million, while core operating margin improved to negative 16% from negative 42% a year earlier.

Gross margins, however, moved lower sequentially. Core gross margin declined to 40.6% from 46.5% in Q1. Management said the figure would have been about 500 basis points higher without costs associated with temporarily renting back some Cerebras systems from cloud customers to meet inference demand before additional company-owned capacity becomes available.

That pressure is expected to intensify temporarily. Cerebras forecasts a Q3 core gross margin of 38% to 40%, which management expects to represent the low point before improvement in Q4.

What Matters Next for Cerebras?

Cerebras raised its fiscal 2026 core revenue outlook to $880 million to $890 million from $855 million to $865 million. For the third quarter, management expects core revenue of $214 million to $216 million.

The Q3 revenue forecast is above the roughly $210 million Wall Street consensus cited in the supplied material, although some analyst estimates reached as high as $220 million. The company also expects a Q3 core operating margin between negative 25% and negative 23%.

For the full year, Cerebras forecasts core gross margin of 41% to 43% and core operating margin of negative 19% to negative 17%.

The margin trajectory will therefore be an important measure of whether the current infrastructure costs are temporary. Cerebras expects lower-cost company-owned systems to replace rented capacity, while longer term it is targeting core gross margins above 60%.

The company expects higher fast-inference pricing, increased utilization of owned data-center capacity, greater throughput, manufacturing scale, lower wafer costs and reduced reliance on high-bandwidth memory to contribute to that goal.

Cerebras is also preparing additional technology launches. The company plans to unveil its fourth-generation CS-4 system, while its disaggregated inference technology is expected to become commercially available in the fourth quarter. Management expects inference throughput to increase more than twentyfold over the next 18 months.

What It Means for Investors

The Cerebras stock reaction highlights the tension between rapidly growing AI demand and the cost of building enough infrastructure to serve it.

Core revenue doubled in Q2, cloud revenue nearly quadrupled and the company's $25.4 billion in RPO provides substantial contractual visibility. Cerebras also said it signed six deals worth more than $30 million each during the quarter and expects core revenue to more than triple in 2027.

But fulfilling that demand requires significant data-center and manufacturing expansion. Cerebras has identified data-center availability as its primary growth constraint, placing greater importance on how quickly new capacity can come online and how efficiently that capacity can generate revenue.

The company's balance sheet gives it substantial resources for that expansion. Cerebras ended Q2 with more than $8.6 billion in cash and marketable securities, along with an unused $850 million revolving credit facility.

The immediate financial test is margins. Management expects Q3 to mark the trough in core gross margin before improvement begins in Q4. That anticipated rebound will help show whether the current profitability pressure is primarily a temporary consequence of capacity constraints or remains a larger challenge as the cloud business scales.

Conclusion

Cerebras' second-quarter results showed two very different sides of its AI growth story. Demand indicators remained strong, with record core revenue, rapidly expanding cloud usage, $25.4 billion in remaining performance obligations and a higher full-year revenue outlook.

At the same time, reported revenue missed consensus expectations, the company recorded a substantial GAAP loss and core gross margins are expected to deteriorate further in Q3 before recovering.

That combination helps explain why the stock moved sharply lower despite strong cloud growth and raised guidance. As Cerebras expands manufacturing capacity more than tenfold and builds out hundreds of megawatts of data-center capacity, the market's focus is shifting from whether demand exists toward how efficiently the company can convert that demand into revenue and improving profitability.

FAQs

Why did Cerebras stock fall after its Q2 results?

Cerebras stock fell as investors focused on reported revenue below consensus expectations, near-term gross-margin pressure and the substantial infrastructure investment required to support growth, despite record core revenue and a raised 2026 outlook.

How fast is Cerebras' cloud business growing?

Cerebras reported core cloud and other services revenue of $127.7 million in Q2, up 287% year over year, driven by demand for fast inference services and the ramp-up of its OpenAI deployment.

Why are Cerebras' gross margins declining?

Cerebras said its Q2 core gross margin was reduced by costs associated with temporarily renting back some of its systems to meet cloud inference demand. Management expects Q3 core gross margin of 38% to 40% before improvement in Q4 as company-owned capacity comes online.

What is Cerebras forecasting for fiscal 2026?

Cerebras expects fiscal 2026 core revenue of $880 million to $890 million, core gross margin of 41% to 43%, and core operating margin between negative 19% and negative 17%.

How large is Cerebras' remaining performance obligation?

Cerebras reported $25.4 billion in remaining performance obligations. Management said that figure does not include backlog from AWS or other hyperscalers.

This article was created with AI assistance and reviewed by an editor. For details, please refer to our Terms of Use.

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