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The AI Daily Brief · Friday, October 23, 2026

Citadel CEO Ken Griffin Declares Market is Almost Certainly in an AI Bubble

Citadel CEO Ken Griffin stated at a Wall Street conference that the market is almost certainly in the middle of a bubble, driven by uncertain return on investment that is causing a rethink on AI spending.

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The tape

1 quote
“"Okay, we're going to need to think about how we're sure we're getting productivity out of this."”
Ken Griffin
Heard on The AI Daily Brief — “The Most Concerning AI Bubble Signals”, published Friday, October 23, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
Transcribed via deepinfra · $0.00
Citadel CEO Ken Griffin Declares Market is Almost Certainly in an AI Bubble — Heardvine