Cerebras Surges 90% on Trading Debut, Opens at $350 in Biggest IPO of the Year With $75 Billion Valuation

May 15, 2026
NBC News
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Summary

AI chipmaker Cerebras explodes 90% on its Nasdaq trading debut, opening at $350 after pricing at $185, claiming the biggest IPO of the year with a $75 billion valuation amid overwhelming investor demand exceeding 20 times available shares as it challenges Nvidia's dominance.

Key Points

  • AI chipmaker Cerebras surges 90% on its trading debut, opening at $350 per share on the Nasdaq after pricing at $185, making it the biggest IPO of the year so far with a valuation exceeding $75 billion.
  • Investor demand is overwhelming, with banks running the offering receiving orders for more than 20 times the available shares, as Cerebras positions itself as a challenger to AI chip giant Nvidia, which now holds a market value exceeding $5.6 trillion.
  • The AI-driven market frenzy continues to fuel broader stock gains, with the S&P 500 up nearly 10% over the last three months, and Cerebras' IPO record is expected to be broken when Elon Musk's SpaceX, now merged with xAI, goes public at an anticipated valuation of over $2 trillion.

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