Users allege that the prediction market platform nullified valid trades by enforcing undisclosed rules on the outcome of a market asking whether Iran’s Supreme Leader would leave power.
Users have filed a lawsuit against Kalshi, a prediction market platform regulated by the CFTC (U.S. derivatives regulator), accusing it of voiding winning trades in a market related to Ayatollah Ali Khamenei’s departure from power. The plaintiffs claim Kalshi applied hidden or undisclosed rules to cancel outcomes that would have resulted in user payouts. The dispute underscores ongoing challenges in ensuring transparency and fair adjudication in political prediction markets, which operate under both financial and informational regulation scrutiny.