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Tech Policy & Law • 2026-08-17 • Source: Ars Technica

State Judge Orders Kalshi to Immediately Stop Offering Sports Bets and Wagers

State Judge Orders Kalshi to Immediately Stop Offering Sports Bets and Wagers

In a major setback for retail prediction markets, a state judge has issued an immediate injunction restraining Kalshi from offering sports-related event contracts within the state jurisdiction.

Jurisdictional Clash: Federal Derivatives vs. State Gaming Laws

State gaming regulators brought the lawsuit, alleging that Kalshi sports contracts constitute illegal sports gambling without state licensure. Kalshi maintains that as a federally regulated exchange under the Commodity Futures Trading Commission, state gaming rules are preempted by federal law.

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Implications for Event Contracts and Financial Prediction Markets

The court ruling sets up a high-stakes appellate showdown over whether event-based financial derivatives can operate freely across state lines without conforming to local gambling laws.