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The 6th US Circuit Court of Appeals handed down a Kalshi prediction market ruling on September 25, 2026. It lets states regulate event-contract trading the same way they regulate gambling. The decision rejects Kalshi’s argument that federal oversight of its contracts preempts state gambling law. The Cincinnati-based court’s ruling immediately gives Ohio and Tennessee grounds to treat Kalshi’s sports and event contracts as regulated gambling activity.
What the Kalshi prediction market ruling decided
Kalshi operates as a federally regulated exchange under the Commodity Futures Trading Commission. It argued that status meant individual states could not layer their own gambling rules on top of its contracts. The 6th Circuit disagreed. It found that states retain the authority to regulate event contracts that function like wagers on sports results and other outcomes. That holds regardless of federal exchange registration. The ruling does not shut Kalshi down. But it opens the door for state regulators in the 6th Circuit’s jurisdiction. They can require licensing, restrict certain contract types, or block the platform outright.
A split among the federal courts
The decision deepens a growing conflict between appeals courts. The 9th Circuit previously found Kalshi subject to Nevada’s gambling laws, aligning with Friday’s 6th Circuit outcome. The 3rd Circuit reached the opposite conclusion, ruling that New Jersey’s gambling statutes do not reach Kalshi’s contracts. Two circuits now sit on one side and a third on the other. Legal analysts say the Supreme Court may eventually need to step in. The question: are prediction markets federally exempt from state gambling oversight nationwide?
Why regulators are moving now
The timing is not coincidental. New York sued a Kalshi competitor, Polymarket, days before the 6th Circuit ruling, accusing it of running an unlicensed gambling operation. New York Governor Kathy Hochul said plainly that “by running an unlicensed gambling operation, Polymarket has done more than just knowingly violate state law.” Prediction markets have grown quickly over the past two years. Retail traders use them to bet on everything from elections to sports outcomes. State attorneys general and gaming commissions have grown more assertive in response. They increasingly treat that growth as a licensing and consumer-protection issue, not a novel financial product exempt from their reach.
What it means for traders and the industry
For everyday users, the immediate effect depends on where they live. Traders in Ohio and Tennessee could see new restrictions on which Kalshi contracts are available to them. That mirrors how online sports betting is already licensed state by state. The split rulings create genuine uncertainty for the broader prediction-market industry’s expansion plans. A platform now has to navigate different legal standards depending on which federal circuit a user’s state falls under. That holds until the Supreme Court steps in, or Congress writes a uniform federal standard.
What comes next for prediction markets
Kalshi has not said whether it will seek a rehearing or push directly for Supreme Court review. A formal certiorari petition, if filed, would take months to resolve. In the meantime, expect other states within the 6th Circuit’s reach to test similar arguments against Kalshi and rivals like Polymarket. Gaming regulators outside that reach are watching too. The New York case against Polymarket will be an early signal. It will show how aggressively states plan to use their gambling laws against this category of trading platform.
Frequently asked questions
What did the Kalshi prediction market ruling actually decide?
The 6th US Circuit Court of Appeals ruled that states can regulate Kalshi’s event contracts as gambling. It rejected the company’s argument that federal exchange registration preempts state oversight.
Which states are directly affected first?
Ohio and Tennessee, both within the 6th Circuit’s jurisdiction, can now apply their gambling laws to Kalshi’s event contracts.
Does this ruling shut Kalshi down?
No. It lets affected states regulate or restrict specific contracts. Kalshi keeps operating in jurisdictions where courts or regulators have not imposed similar restrictions.
Why do different courts disagree on this?
The 9th Circuit sided with state regulation in a Nevada case, matching the 6th Circuit. The 3rd Circuit found New Jersey’s gambling law did not apply to Kalshi, creating a split that could draw Supreme Court review.
Is Polymarket involved in this ruling?
Not directly, but New York sued Polymarket days earlier over similar unlicensed-gambling allegations, showing regulators are pursuing multiple prediction-market platforms at once.
What should traders on these platforms expect?
Traders should expect the availability of certain contracts to vary by state as more regulators test their authority following this decision.
How prediction markets differ from traditional betting
Kalshi and its rivals describe their products as event contracts. These financial instruments pay out based on whether a defined event occurs. The companies market them more like derivatives than a sportsbook wager. Supporters of that framing say event contracts serve a genuine price-discovery function. They let traders hedge real-world risks tied to elections, economic data or corporate outcomes. A traditional bet does not offer that. Critics disagree, including several of the state regulators now asserting authority over these platforms. A contract paying out on a sports score, they argue, is a wager no matter how it is packaged. That is precisely the argument the 6th Circuit accepted this week.
More on this week’s markets
For more on this week’s financial-market backdrop, see our coverage of the stock market’s weekly gains and the bond-market rout in Treasury yields.
Sources
- Al Jazeera — US court rules against Kalshi, says states can regulate prediction markets. https://www.aljazeera.com/news/2026/9/25/us-court-rules-against-kalshi-says-states-can-regulate-prediction-markets
- CNBC — Appeals court rules states can regulate sports prediction markets. https://www.cnbc.com/2026/09/25/appeals-court-rules-states-can-regulate-sports-prediction-markets.html
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