Ken Griffin says AI is ‘almost certainly’ a bubble, but he’s still a believer

The Citadel founder warned investors about AI excess while praising the productivity gains his own firm has captured Ken Griffin thinks the AI trade has gotten ahead of itself. He also thinks AI is going to change everything. The Citadel founder and CEO told an audience in New York on October 20, 2026, that investors are “almost certainly” caught in an AI bubble. In the same breath, he made the case that the technology could usher in a golden era for entrepreneurs. The remarks came during a talk at Citadel’s annual Future of Global Markets Conference. Citadel estimates it manages approximately $68 billion in assets, so his read on market sentiment tends to travel. His core worry was not that AI is useless.

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