AI chip company Cerebras went public on the Nasdaq last night. Priced at $185, the stock hit $386 during the day before closing up 68% at $311.07 — the biggest US IPO of 2026 so far. At its close, the common stock market cap was about $67 billion; fully diluted, it's pushing $95 billion.
Cerebras' core technology is a single massive chip made from an entire silicon wafer, packing 4 trillion transistors designed for AI inference with high bandwidth and low latency. The US market has been starved for pure AI compute plays beyond Nvidia and AMD, so Cerebras naturally soaked up that demand. But what really propped up the valuation was the company's quiet rewriting of three ugly business stories right before the IPO.
One: Using the OpenAI promise to hedge Middle East dependency. Extreme customer concentration was Cerebras' biggest IPO hurdle. In 2024, G42 accounted for over 85% of revenue; by 2025, two UAE-linked customers still made up 86%. Then OpenAI and AWS stepped in, changing the pricing logic. In January 2026, a $10 billion / 750MW deal with OpenAI was announced; by April, reports surfaced of a three-year commitment worth over $20 billion, dramatically improving forward order visibility. Customer concentration hasn't vanished, but Wall Street is now willing to pay a premium for the certainty OpenAI brings.
Two: Using GAAP profitability to rewrite the loss narrative. The S-1 shows Cerebras had $510 million in revenue for 2025, up 76% year over year, and reported GAAP net income. But that profit came largely from a roughly $363 million non-cash accounting gain — core operations still lost about $146 million. What the market is really buying isn't positive cash flow, but the growth curve of revenue expansion, order expectations, and surging AI inference demand. That also explains why Cerebras rejected acquisition approaches from SoftBank and Arm just weeks before listing.
Three: Using cloud inference services to cut into the giants' turf. Cerebras is shifting its valuation story from just selling physical chips to offering AI cloud inference compute on its own hardware. That pivot turns it from a mere hardware vendor into a player in the same profit pool contested by AWS, CoreWeave, Groq, and Together AI. Cerebras hasn't fully solved its problems, but it has turned the three risks investors feared most into growth stories they can keep betting on.