Prediction Market Kalshi Sues Missouri AG Over Sports Event Trading Ban
Kalshi, a prediction market, is suing the State of Missouri in federal court. The lawsuit challenges Missouri Attorney General Catherine Hanaway's cease and desist order, which sought to regulate Kalshi's platform, particularly its offerings related to sports events. Kalshi argues…
St. Louis, MO, October 30, 2026 — Kalshi, a platform that allows users to trade contracts based on the outcome of future events, has filed a lawsuit against the State of Missouri in federal court. The legal action challenges a cease and desist order issued by Missouri Attorney General Catherine Hanaway.
The order from Attorney General Hanaway sought to regulate Kalshi’s operations, specifically targeting its offerings that pertain to sports events. Kalshi, in its federal lawsuit, asserts that prediction markets fall under federal regulatory oversight and contends that Missouri’s attempt to enforce its sports betting laws on the platform constitutes an overreach of state authority into federal jurisdiction.
The core of Kalshi’s argument is that its prediction markets are distinct from traditional gambling or sports betting. The company maintains that these markets provide a venue for users to hedge against risks or speculate on the probability of future events, a function it claims is protected and regulated at the federal level. By attempting to apply state sports betting statutes, Missouri, through its Attorney General’s office, is allegedly encroaching upon areas exclusively governed by federal law.
Details regarding the specific sports events targeted by the cease and desist order were not provided in the available summary. Similarly, the timeline for when the order was issued or when the lawsuit was filed were not specified. The summary also did not include any statements from Attorney General Catherine Hanaway or her office regarding the lawsuit or the basis for the cease and desist order.
Kalshi’s legal challenge is expected to explore the boundaries between state regulation of gambling and federal oversight of financial or prediction markets. The outcome of the lawsuit could have implications for how prediction markets operate across different states and clarify the scope of state authority in regulating such platforms.
Story summarized from the original created by Jason Rosenbaum on www.stlpr.org, see more information here.
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