Cerebras IPO Raises $5.55B, Valuation $100B

Cerebras Systems priced its IPO at $185, opened at $350, closing up 69%, raising $5.55 bn, largest US IPO 2026.
The offering sold 30 million shares at $185, valuing the company at about $100 bn, triple its February private valuation.
Institutional demand exceeded supply >20‑times, prompting a price and share count increase; underwriters hold option for 4.5 m extra shares.
Cerebras secured a $20 bn OpenAI deal and AWS partnership, with Amazon buying $270 m of stock, boosting AI inference market position.