Prediction market contracts betting on the collapse of Wells Fargo, JPMorgan Chase, and Bank of America have raised concerns among FDIC officials and members of Congress. Regulators fear that if these markets grow in scale, they could potentially fuel real-world bank runs by incentivizing or signaling institutional instability. Following internal discussions, the FDIC has determined that existing ethics rules are sufficient to prohibit insiders from trading on these outcomes. Current activity remains limited, with approximately $76,000 recently traded on contracts predicting a bank collapse before year-end.