Cerebras priced its initial public offering at $185 a share — already above the marketed range — and opened at $350, nearly doubling its market capitalisation in the first minutes of trading. The 30 million shares sold raised $5.55 billion before any underwriter overallotment.
The print closes a window that had been functionally shut for high-profile AI hardware companies since late 2025. Bankers preparing follow-on filings — including for at least two private foundry-adjacent names — were watching the aftermarket as much as the offering itself.
The company's wafer-scale architecture competes with Nvidia at specific points in the training stack. Today's reception suggests public-market investors are willing to fund a credible second source. Whether the underlying customer concentration warrants a hundred-billion-dollar valuation is the question for next quarter, not this one.
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