Coinbase CEO Brian Armstrong’s surprise mention of “Bitcoin,” “Ethereum,” and “Web3” during the company’s Q3 earnings call instantly settled all related bets in a small $4,000 prediction market, leading to a top payout of $111. The incident highlighted the vulnerability of illiquid markets compared to the $22 million New York City mayoral market, which uses collateral-backed automated pricing to resist manipulation. In that market, Zohran Mamdani holds 95% odds, supported by multimillion-dollar positions from major traders, in alignment with recent polls showing him ahead by 16 to 25 points. Separately, Dogecoin dropped 5.5% to $0.1843 after breaking $0.1940 support amid 180% surge in trading volume on institutional selling.