Polymarket traders put roughly 10% odds on an AI bubble burst by year-end

Prediction market bettors are pricing a small but rising chance that the AI trade cracks before December 31, 2026 The AI trade has been the stock market’s main character for a while now. Prediction market traders are starting to wonder whether the character arc includes a tragic third act. On Polymarket, bettors have assigned a probability of approximately 10-11% that an “AI bubble burst” happens by December 31, 2026. That is hardly a panic signal. It does show that anxiety about AI valuations has moved from dinner-party chatter to real money. As of October 20, 2026, Polymarket priced an 11% chance of an AI industry downturn before year-end. Earlier readings of the same contract came in at 8%, 7%, and 6%.

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