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Kalshi Faces Renewed US Supreme Court Review Prospect After Latest Appeal Setback

Prediction market platform Kalshi has reportedly lost another appeal, potentially increasing the likelihood of its case being reviewed by the United States Supreme Court.

PredictionSites Newsroom · 27 September 2026

Prediction market platform Kalshi has experienced a further legal defeat, as reports indicate its latest appeal has been unsuccessful. This development is understood to heighten the possibility of the company's ongoing legal dispute being considered by the US Supreme Court.

The specific details of the appeal and the court involved were not provided in the report. However, such a legal outcome typically signifies that a lower court's decision has been upheld, leaving fewer avenues for resolution within the current judicial structure for the party that appealed.

Prediction markets, like Kalshi, allow users to trade contracts based on the outcome of future events. The value of these contracts fluctuates according to market sentiment, effectively creating real-time probabilities for various outcomes. Kalshi's legal challenges have centred on the regulatory classification of its event contracts.

The potential for a Supreme Court review suggests that the case involves significant legal questions that could have broader implications for the prediction market industry and the regulatory landscape for event contracts in the United States.

Reported first by bloomingbit — read the original report. This article was written by the PredictionSites newsroom from that report.