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Cerebras Prices a $5.5 Billion IPO Far Above Range and Nearly Doubles at the Open

The wafer-scale chipmaker became 2026's biggest US listing so far, and its prospectus shows how much of the story rests on OpenAI and the UAE.

FinanceMay 14, 20264 min read2 diagrams

Key takeaways

  • Cerebras sold 30 million shares at $185, well above the $115-$125 range it started with, raising about $5.5 billion.
  • Shares opened near $350 and closed around $311; 2025 revenue was $510 million, up 76%.
  • UAE-linked customers were about 86% of 2025 sales, and OpenAI's contract is the main future driver.

Cerebras Systems priced its initial public offering on the evening of May 13 at $185 a share, $25 above the top of a range that had already been raised twice, and sold 30 million shares for roughly $5.5 billion. The stock, listed on Nasdaq as CBRS, opened the next morning near $350 and settled at about $311. It is the largest US IPO of 2026 to that point and the biggest US tech listing since Uber in 2019.

How the price got there

Cerebras started marketing at $115 to $125 a share. As orders piled up, with Reuters sources describing demand of more than 20 times the shares on offer, the company lifted the range to $150 to $160 and upsized the deal to 30 million shares, then priced above even that. Opening-price reports varied by outlet, from $350 to $385, so the chart below uses the figure most outlets agreed on. The close of about $311 was a gain of roughly 68% over the offer price. Estimates of the company's value after the debut ranged from about $66 billion at the close to over $100 billion at the first-day peak, depending on how dilution is counted.

Bar chart of Cerebras share price steps from initial range top to first-day close Cerebras price steps, May 2026 (US$ per share) $125 $160 $185 $350 $311 Initial range top Raised range top IPO price Day-one open Day-one close Close rounded; some outlets reported a higher opening print.
Source: TechCrunch, VentureBeat and Reuters via The Star, rounded.

What investors are buying

Cerebras builds an unusual chip: the WSE-3 is a single wafer-sized processor with about 4 trillion transistors, 900,000 cores and 44 GB of on-chip memory. The company's pitch is inference speed, with claims of up to 15 times faster than leading GPU systems that were corroborated by the benchmarking firm Artificial Analysis, according to VentureBeat's read of the filing.

The financials are more modest than the valuation. Revenue was $78.7 million in 2023, $290.3 million in 2024 and $510 million in 2025, up 76%. Reported net income of $237.8 million in 2025 was inflated by a one-time gain of about $363 million; the non-GAAP result was a loss of $75.7 million, and gross margin slipped to 39% from 42.3%. The prospectus also discloses material weaknesses in internal controls over financial reporting.

The concentration problem

The IPO was delayed for roughly two years after a CFIUS review of Abu Dhabi-based G42, which provided about 85% of 2024 revenue. That share fell to 24% in 2025, but the UAE exposure did not vanish: MBZUAI, a G42 related party, accounted for 62% of 2025 revenue, putting UAE-linked customers around 86% of sales. The filing says the OpenAI agreement represents a substantial portion of projected revenue over the next several years.

Diagram of the OpenAI and Cerebras financing loop The OpenAI-Cerebras money loop OpenAI buys inference capacity Cerebras builds and runs the systems $20B+ for 750 MW of inference capacity Warrants: up to 33.4M shares $1B loan at 6%, due by 2032 Solid: customer payments. Dashed: capital and equity flowing back to the customer. Option for 1.25 GW more would take the total to about 2 GW.
Terms as summarized by VentureBeat from the S-1. Simplified; Illustrative.

Why it matters

The deal structure is the part critics fixate on. OpenAI committed to more than $20 billion for 750 megawatts of capacity, with an option for 1.25 gigawatts more, while also holding warrants worth about $11.7 billion at the opening price and having extended Cerebras a $1 billion working-capital loan. TechCrunch called it a complicated circular-deal relationship. A sale to a customer that is also a lender and a prospective shareholder is not unusual in this phase of AI buildout, but it makes revenue quality harder to judge.

For the market, the pricing signals appetite. Bankers had spent months wondering whether public investors would pay up for AI hardware outside Nvidia. A 68% first-day pop and 20-times oversubscription answered that, and it opened the door for the larger listings that followed later in the year.

What to watch

  • First earnings and lockup. Gross margin and the OpenAI ramp will test the valuation, and insider selling after the lockup could pressure the stock.
  • Customer mix. Whether UAE-linked revenue falls below its current dominant share as new buyers sign.
  • TSMC dependence. Cerebras has no long-term supply commitment from its sole foundry.
  • Competition. Nvidia bought Groq for about $20 billion, and hyperscaler custom silicon keeps improving.

Sources

  1. Cerebras raises $5.5B, kicking off 2026's IPO season with a bang — TechCrunch
  2. Cerebras stock nearly doubles on day one as AI chipmaker hits $100 billion — VentureBeat
  3. Cerebras shares skyrocket in debut as AI mania grips markets — The Star (Reuters)

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