Citadel's Ken Griffin: We're 'almost certainly' in an AI bubble

SumitGup · x · 2026-10-21

Citadel founder Ken Griffin warns investors are "almost certainly" in an AI bubble, citing companies' struggles to convert massive AI spending into measurable productivity gains. With Anthropic reportedly eyeing $750 billion in future computing expenditures, questions over AI investment returns are intensifying — though Griffin remains bullish on AI's long-term potential.

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