Ohio Gambling Commission Fines Kalshi Over Prediction Market Operations
The Ohio Gambling Commission regulatory dispute with Kalshi has escalated as state authorities challenge the predictive futures company’s operations. Kalshi, which allows users to place bets on real-world events through what the company calls “event contracts,” received a cease-and-desist letter from the Commission in early 2025. As a result, the company filed for a federal injunction to prevent the state from halting its operations. The enforcement action raised critical questions about how prediction markets fit within existing gambling regulations, particularly concerning Kalshi sports betting activities.
Ohio Gambling Commission Issues Fine to Kalshi
The Ohio Casino Control Commission issued a notice of its intention to fine KalshiEX LLC GBP 3.97 million for offering alleged illegal gambling services. The OCCC assigned the seven-figure penalty on Tuesday afternoon, claiming Kalshi’s sports event contracts allowed the platform to operate as an unlicensed sports betting operator.
The enforcement action followed a federal court ruling over one month earlier. U.S. District Judge Sarah Morrison denied Kalshi’s request for an injunction against the OCCC, ruling that the platform’s prediction markets in sports amount to acts of gambling under state regulations. Morrison wrote that swaps are “understood as a transaction involving financial instruments and measures that traditionally and directly affect commodity prices,” rejecting Kalshi’s argument that federal commodity exchange law preempts Ohio enforcement.
Regulators stated the fine stems from Kalshi’s refusal to shut down its binary sports event contracts. By continuing to operate without seeking licensure, Kalshi prevented the Commission from investigating the company’s suitability and adherence to Ohio’s required safeguards.
The financial stakes prove substantial. Kalshi generated GBP 1.03 billion in estimated annualized revenue from sports contracts, with approximately 90% of the platform’s annualized revenues tied to sports contract trading.
How Kalshi’s Prediction Market Operations Triggered Scrutiny
Regulatory disputes intensified as Kalshi expanded sports event contracts across all 50 states without obtaining state gambling licenses. Seven states sent cease-and-desist letters alleging violations of state law. The company’s classification of transactions as federally regulated “swaps” rather than gambling bets created jurisdictional conflicts with state gaming authorities.
Kalshi operates through a self-certification process with the CFTC, listing new offerings without prior federal approval. State regulators and sports leagues raised concerns about this approach. The NBA noted that self-certification “allows most contract markets to simply proceed unchecked”. Professional sports organizations warned that Kalshi sports betting contracts would “mimic sports betting but seemingly without the robust regulatory features that accompany regulated and legalized sports betting”.
Insider trading violations on the platform drew additional attention. Kalshi suspended accounts and imposed financial penalties after investigations revealed employees trading on material nonpublic information. The platform reported opening 200 investigations in one year, with over a dozen becoming active cases. The CFTC responded by asserting “full authority to police illegal trading” on prediction markets.
State attorneys general and gaming regulators pursued enforcement actions particularly against sports-related contracts. The Kalshi Ohio Gambling Commission dispute exemplifies broader tensions as multiple jurisdictions challenged whether federal commodity law preempts state gambling regulation.
What This Enforcement Action Means for the Prediction Market Industry
Federal enforcement authorities escalated their focus on prediction markets following the Kalshi Ohio Gambling Commission case. CFTC Director of Enforcement David Miller identified insider trading on prediction markets as a top priority in March 2026, stating his division will treat misuse of material nonpublic information identically to violations on any CFTC-regulated market. U.S. Attorney Jay Clayton for the Southern District of New York confirmed his office expects to pursue fraud and insider trading cases related to prediction markets.
At least 20 federal lawsuits have been filed nationwide disputing whether platforms should be treated as federally regulated financial exchanges or state-licensed gambling operations. The CFTC filed an amicus brief defending its exclusive jurisdiction over derivative markets, whereas several states secured preliminary injunctions blocking Kalshi sports betting operations. A Massachusetts court temporarily barred Kalshi from offering sports contracts without state licensing.
Class action plaintiffs from six states filed suit against Kalshi claiming violations of state gambling laws and deceptive practices. The litigation followed enforcement actions in New Jersey, Illinois, Nevada and Ohio. Notwithstanding regulatory pressure, major sportsbook operators announced prediction market partnerships, with FanDuel partnering with CME Group and DraftKings partnering with Kalshi in December 2025.
Europe imposed stricter restrictions, with eleven countries banning prediction market operators through national gambling legislation.
