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Prop bet chaos as Kalshi calls Cardi B's Super Bowl cameo was ambiguous and Polymarket pays out on disputed wager By February 11, 2026, 6:50 AM ET [Fortune]

Robinhood Markets, Inc. - Class A  (HOOD) 
PDF At least one Kalshi trader filed a complaint with the Commodity Futures Trading Commission over how the prediction market handled Sunday's appearance by the Grammy-winn [Read more]