Cerebras IPO Shakes Markets: AI Chipmaker Tops $100 Billion in Blockbuster Nasdaq Debut

The artificial intelligence chip race just got its first true public-markets blockbuster of 2026. Cerebras Systems, the Sunnyvale-based maker of wafer-scale AI accelerators, made one of the most explosive Nasdaq debuts of the year, with shares more than doubling on day one and pushing the company past a $100 billion implied market capitalization. Wall Street has waited years for an Nvidia challenger with serious credibility — and traders have just decided they have found one.

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