Kalshi sues Ohio after regulators demand compliance

Summary

KalshiEx LLC has filed a federal complaint in the U.S. District Court for the Southern District of Ohio seeking declaratory and injunctive relief after the Ohio Casino Control Commission and the Ohio Attorney General threatened enforcement action. Kalshi — a CFTC-designated derivatives exchange that lists event (including sports) contracts — says Ohio’s cease-and-desist letter and a separate warning to licensed sportsbooks (threatening revocation for partnering with DCMs) unlawfully intrude on the Commodity Futures Trading Commission’s exclusive authority and are preempted by federal law. Kalshi asks the court to block Ohio from enforcing state gambling statutes against it or its partners.

Key Points

Kalshi is a CFTC-designated contract market (DCM) that lists event contracts, including sports-event contracts.
Ohio Casino Control Commission sent a cease-and-desist letter (31 Mar 2025) and demanded Kalshi halt sports-event offerings to Ohio residents.
Ohio later warned licensed sportsbooks (25 Aug 2025) they risk licence revocation if they partner with DCMs offering sports contracts, even if the partnership operates outside Ohio.
Kalshi argues federal law (Commodity Exchange Act) gives the CFTC exclusive jurisdiction over derivatives on DCMs and thus Ohio’s actions are field- and conflict-preempted under the Supremacy Clause.
Federal courts in Nevada and New Jersey previously granted preliminary injunctions against similar state actions; a Maryland court recently denied Kalshi relief (appeal docketed).
Kalshi self-certified sports contracts on 22 Jan 2025; the CFTC has not exercised its public-interest review to block them.
Kalshi says Ohio’s threats cause immediate, irreparable harm by chilling partner deals, cutting off broker access and risking market liquidity and reputation.
Kalshi seeks a preliminary and permanent injunction and a declaratory judgment that Ohio laws (R.C. Chapters 2915, 3767, 3775) cannot be used to regulate its exchange.

Content summary

Kalshi’s complaint traces the federal regulatory scheme for futures and event contracts, notes the CFTC’s exclusive control over designated contract markets, and argues Ohio’s enforcement threats create a Hobson’s choice for Kalshi and its partners. The filing recounts the timeline: Kalshi’s self-certification of sports contracts in January 2025; Ohio’s cease-and-desist in March; Kalshi’s responses and requests for assurance; Ohio’s fact-finding demand in August; and the Sports Gaming Licensee Letter that warns Ohio licensees they may lose licences for associating with Kalshi even outside Ohio. Kalshi explains how brokers and licensed operators are essential to exchange liquidity and that Ohio’s extraterritorial threats jeopardise those relationships. The complaint asks the federal court to declare Ohio laws preempted and to enjoin state enforcement and retaliation against partners.

Context and relevance

This dispute sits at the intersection of federal preemption, the future of prediction markets, and the expanding, sometimes messy, overlap between sports betting regulation and federally regulated derivatives. A ruling for Kalshi would reinforce CFTC primacy over DCMs and protect national market access for event contracts; a ruling for Ohio would embolden states to press gambling and consumer-protection claims against nationally operating exchanges. The outcome will affect exchanges, sportsbooks, brokers, market liquidity, and how providers design geofencing or partner structures to manage regulatory risk.

Why should I read this?

Short answer: if you care about whether states can block a federally regulated prediction market or bully sportsbooks and brokers into cutting ties, this matters. It’s the legal fight that could decide who gets to offer sports-event contracts, how brokers serve customers, and whether the CFTC’s exclusive regime holds up against state gaming authorities. Quick, punchy and potentially precedent-setting — worth five minutes unless you’re allergic to regulatory drama.