A three-judge panel of the 6th U.S. Circuit Court of Appeals ruled Friday that state authorities in Ohio and Tennessee possess the legal standing to enforce local gambling regulations against the prediction market platform Kalshi. The decision represents a significant setback for the company, which has spent years arguing that its event-based contracts should be classified strictly as financial derivatives under federal oversight rather than as forms of gambling subject to a patchwork of state-level prohibitions.
The unanimous ruling from the Cincinnati-based court overturned a previous preliminary injunction that had prevented Tennessee from applying its gambling statutes to Kalshi’s operations. Simultaneously, the panel upheld a lower court’s decision to deny a similar injunction in Ohio, effectively clearing the path for both states to move forward with regulatory or enforcement actions against the platform. The core of the dispute rests on whether the federal Commodity Exchange Act (CEA) preempts state laws when it comes to "event contracts"—financial instruments that allow users to trade on the outcome of real-world events ranging from economic indicators to sports results.
Appeals Court Says Ohio and Tennessee Can Regulate Kalshi Under Gambling Laws: The Legal Threshold
The 6th Circuit’s decision hinges on a fundamental disagreement regarding the definition of a "swap." Kalshi has consistently maintained that its sports-related contracts are financial swaps, a category of derivatives that falls under the exclusive jurisdiction of the Commodity Futures Trading Commission (CFTC). By classifying these contracts as swaps, Kalshi aimed to shield itself from state gambling commissions, arguing that federal law occupies the entire field of regulation for such products.
Writing for the panel, Circuit Judge Julia Smith Gibbons rejected this interpretation, noting that the traditional understanding of a swap involves a financial instrument used primarily to hedge commercial or investment risk. The court found that betting on the specific details of a soccer match, such as the number of corner kicks or the outcome of a complex multi-game parlay, does not align with the federal government’s intent to facilitate risk management. Instead, the court characterized these activities as fundamentally aligned with the definition of wagering, which falls under the historical "police power" of individual states.
The ruling emphasized that the federal Commodity Exchange Act does not contain language explicit enough to override the long-standing authority of states to regulate or prohibit gambling within their borders. Judge Gibbons noted that the regulation of gaming is a core function of state sovereignty, and without a clear directive from Congress to the contrary, federal financial laws do not automatically grant companies immunity from state-level gambling enforcement.
Defining the Boundary Between Financial Swaps and Gambling
The distinction between a financial hedge and a gamble has become the central battleground for the burgeoning prediction market industry. Kalshi, along with competitors like Polymarket and PredictIt, operates by allowing users to buy and sell "shares" in the outcome of future events. If the event occurs, the share pays out a fixed amount; if it does not, the share becomes worthless. While these markets are often praised for their ability to aggregate information and provide accurate forecasts, they also bear a striking resemblance to traditional binary betting.
In the 6th Circuit’s view, the intent of the participant and the nature of the underlying event are paramount. A corporation might use a swap to protect itself against fluctuations in interest rates or the price of oil—a legitimate exercise in financial risk management. However, the court questioned how a retail user betting on a "long-shot parlay" in a sports match is managing a tangible financial risk. By framing these sports contracts as gaming rather than hedging, the court reinforced the idea that states have a vested interest in overseeing these activities to protect consumers and maintain public order.
Tennessee Attorney General Jonathan Skrmetti lauded the decision, describing it as a "great win" for the state’s ability to maintain its own legal standards regarding games of chance. The ruling suggests that even if a platform receives some level of federal recognition or pursues registration with the CFTC, it must still navigate the specific legal landscapes of the states in which it operates.
The Commodity Exchange Act and State Police Power
The tension between federal preemption and state police power is a recurring theme in American jurisprudence. Under the Supremacy Clause of the U.S. Constitution, federal law can override state law, but courts are generally hesitant to assume preemption in areas traditionally managed by the states unless Congress has made its intent "unmistakably clear." The 6th Circuit found that the CEA lacks this clarity regarding the regulation of gambling.
This legal philosophy places the burden on companies like Kalshi to prove that federal law was intended to create a unified national market free from state interference. The court’s refusal to grant an injunction in Ohio and its decision to vacate the one in Tennessee signal that, for now, the "police power" of the states remains a formidable barrier to the expansion of prediction markets that touch on sports and other gaming-related outcomes.
The ruling also touches on the broader administrative struggle between the CFTC and prediction platforms. While the CFTC has sought to limit the types of contracts Kalshi can offer—particularly those involving political elections—the company has fought back in various jurisdictions. However, the 6th Circuit’s focus was less on the CFTC’s specific rules and more on the underlying right of a state to define what constitutes an illegal wager under its own penal code.
A Growing Legal Patchwork Across the United States
The 6th Circuit decision arrives at a time of extreme volatility for the prediction market industry. In other parts of the country, Kalshi has seen more favorable outcomes. Recently, a federal court in the District of Columbia ruled in favor of Kalshi, allowing it to list contracts related to U.S. elections, a move that the CFTC had tried to block. That ruling was seen as a major victory for the industry, suggesting a shift toward federal acceptance of event-based trading.
However, the 6th Circuit’s ruling creates a divergent path. While the D.C. ruling focused on whether the CFTC exceeded its authority, the 6th Circuit focused on whether states are prohibited from acting. This creates a complex legal patchwork where a platform might be "legal" under federal guidelines but "illegal" or subject to prosecution under state gambling laws in specific regions.
Similar legal challenges are currently pending in states such as Connecticut, New York, Arizona, and Minnesota. Each of these cases involves different state-specific definitions of gambling and varying degrees of hostility toward unregulated online betting. As prediction markets continue to grow in popularity, driven by high-profile events like the presidential election and major sporting tournaments, the pressure on the court system to provide a definitive answer on jurisdiction will only increase.
The Circuit Split and the Path to the Supreme Court
The unanimous decision by the 6th Circuit deepens a significant split among federal appeals courts. When different circuits reach conflicting conclusions on the same point of law—such as whether the CEA preempts state gambling laws—the likelihood of the U.S. Supreme Court intervening increases significantly. Legal experts point out that the Supreme Court often steps in to resolve such splits to ensure that federal laws are applied uniformly across the country.
Kalshi has already indicated that it expects the 6th Circuit’s ruling to be overturned, potentially signaling its intent to appeal to the high court. If the Supreme Court takes up the case, the resulting decision would have massive implications for the entire fintech and gambling industries. A ruling in favor of Kalshi would pave the way for a single, federal regulatory framework, likely under the CFTC, which would simplify operations for prediction markets. Conversely, a ruling that favors state regulation would require these companies to obtain licenses and comply with the specific laws of all 50 states, much like the current sports betting industry.
The Supreme Court, however, is notoriously selective. With thousands of petitions filed annually and only a handful of cases heard, there is no guarantee that the justices will choose to address the prediction market controversy in the near term. Until then, companies must operate in a state of regulatory uncertainty, balancing federal compliance with the risk of state-level prosecution.
Economic and Political Consequences for Prediction Markets
The ability of Ohio and Tennessee to regulate Kalshi under gambling laws could have an immediate economic impact on the platform’s liquidity and user base. If Kalshi is forced to cease operations in states with strict anti-gambling laws, the overall depth of its markets could decrease, making the platform less attractive to serious traders and institutional investors.
Furthermore, this ruling could embolden other state attorneys general to launch their own investigations into prediction markets. If states view these platforms as a threat to their tax revenue from licensed sportsbooks or as a risk to public welfare, they may use the 6th Circuit’s precedent to justify aggressive legal action. The distinction between "gaming" and "trading" is not just a matter of semantics; it dictates who gets to tax the activity and who is responsible for consumer protections.
In the political arena, the ruling highlights the ongoing debate over the liberalization of betting in America. Since the Supreme Court overturned the federal ban on sports betting in 2018, dozens of states have moved to legalize and regulate the practice. However, many states prefer to keep this activity within highly regulated, state-licensed frameworks rather than allowing open-access digital platforms to operate under the umbrella of federal financial law.
Looking Ahead: The Future of Event Contracts
As the legal battle continues, Kalshi and its competitors find themselves at the center of a fundamental shift in how Americans interact with information and risk. Prediction markets are increasingly viewed as valuable tools for price discovery and forecasting, yet their proximity to gambling remains their greatest legal hurdle.
The 6th Circuit’s decision serves as a reminder that the transition from traditional finance to innovative "event contracts" is fraught with jurisdictional hurdles. For Ohio and Tennessee, the ruling is a confirmation of their sovereign right to protect their citizens according to their own statutes. For Kalshi, it is another chapter in a long-term strategy to redefine the boundaries of the American financial system.
The coming months will likely see further motions, potential stays, and perhaps a petition for certiorari to the Supreme Court. For now, the legal reality remains that in the 6th Circuit’s jurisdiction, the "swap" label is not a shield against the reach of state gambling authorities. The industry will be watching closely as other states weigh their options in light of this influential appellate decision.
