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Analysis: Coinbase's (COIN) Brian Armstrong Made Prediction Markets Look Dumb. Bill Ackman Made Them Look Real

Brian Armstrong's statement exposed the unpredictability of crypto prediction markets, while the NYC mayoral market shows $22 million in real-money liquidity supporting its accuracy.

Summary by Coin Desk
A Coinbase CEO prank resolved one market with a single sentence. Ackman’s warning about “rigged odds” in a $22 million Polymarket election shows the opposite: it now takes institutional-scale money to move prices even 10%.

9 Articles

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Bias Distribution

  • 67% of the sources are Center
67% Center

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Coin Desk broke the news in Manila, Philippines on Friday, October 31, 2025.
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