US: Utah sues Kalshi over alleged illegal gambling
The US state of Utah is suing prediction market platform Kalshi, alleging that it operates an illegal gambling business, as it seeks to recover millions of dollars from wagers placed by state residents.
According to The Salt Lake Tribune, the complaint, filed in state court on Tuesday, claims that Kalshi’s event contracts constitute sports betting. Utah prohibits gambling under its constitution. The suit also asks a judge to block the company from offering contracts in Utah and to approve a geolocation tool to enforce the ban.
The state estimates Kalshi generated between US$30.6 million and US$61.2 million in fees from Utah accounts, while residents lost approximately US$5.5 million on individual wagers. Utah’s Attorney General Derek Brown described the figures as preliminary, with further information expected as the case progresses.
“They’re not your friends. They’re not helping you invest. They’re not providing you with insight or opportunity,” Brown commented. “Frankly, they are engineered to do one thing and one thing alone, and that is empty your wallet.”
Along with Kalshi, the lawsuit names four subsidiaries and two Pennsylvania-based trading companies that provide pricing and liquidity. Kalshi has argued that its event contracts are financial trading products, and that it is regulated at the federal level by the Commodity Futures Trading Commission (CFTC).
However, Utah contends that the company goes beyond facilitating trades by creating markets, handling wagers, and processing payouts.
Brown emphasized that the focus was on the company, not on its customers, adding, “Let me be clear: it’s against the companies. It’s not against you.”
The lawsuit follows an August 2026 ruling in a separate case brought by Kalshi, in which a federal judge ruled in Utah’s favor. Kalshi appealed, and the appeal remains pending.
Meanwhile, states across the US have challenged prediction market operators, arguing that their event contracts amount to unregulated gambling rather than financial trading.
Charlotte Capewell brings her passion for storytelling and expertise in writing, researching, and the gambling industry to every article she writes. Her specialties include the US gambling industry, regulator legislation, igaming, and more.
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The Backstory
Utah’s challenge moves from defense to offense
Utah’s lawsuit against Kalshi marks a shift from resisting prediction markets in federal court to seeking money and an outright state-level ban through its own enforcement action. The state is not only arguing that Kalshi’s sports event contracts violate its gambling laws; it is also seeking to recover what it says are millions of dollars connected to trading by Utah residents and to require geolocation measures that would block access from within the state.
The case lands in a jurisdiction with unusually little tolerance for gambling. Utah prohibits gambling under its constitution and has no legal sports betting market, making it a sharper test than disputes in states where regulators are trying to protect licensed wagering systems. Attorney General Derek Brown has framed the issue as consumer protection and law enforcement rather than a dispute over financial innovation, arguing that residents are being offered wagers under the label of federally regulated trading products.
Kalshi’s position is that it operates a federally supervised exchange, not a sportsbook. The company has repeatedly said its event contracts are financial instruments regulated by the Commodity Futures Trading Commission, and that state gambling authorities cannot impose a patchwork of local restrictions on products listed through a federally regulated market. Utah’s new suit directly challenges that premise by alleging Kalshi is doing more than passively listing contracts, including creating markets, taking fees and processing payouts tied to sports outcomes.
A preemptive suit set the stage
The latest complaint follows a months-long escalation that began when Kalshi moved first against Utah officials. In February, the company filed a federal lawsuit seeking to block what it described as imminent enforcement, naming Gov. Spencer Cox, Brown and other state officials. Kalshi argued that Utah leaders had already made clear they viewed its business as illegal and intended to act against it.
That case was significant because Utah was the first state without legal sports gambling to be sued by Kalshi. In other states, the company’s disputes were often framed around whether prediction markets were intruding on regulated sports betting regimes. In Utah, the question was more direct: whether a state that bans gambling almost entirely can prevent residents from accessing sports contracts listed on a federally regulated prediction market.
Kalshi’s preemptive lawsuit against Utah officials also coincided with legislative movement in the state. Utah lawmakers had advanced measures clarifying that wagers tied to individual actions, statistics, occurrences or non-occurrences could be treated as gambling. That language mattered because prediction markets often turn on narrowly defined events, including game results, player statistics or whether a specified occurrence happens during a contest.
By going to court first, Kalshi sought to place the dispute squarely in federal preemption territory. It contended that the Commodity Exchange Act and CFTC oversight should displace state gambling laws when applied to its listed contracts. Utah countered that federal regulation of derivatives did not require states to permit products they classify as gambling.
Federal rulings gave Utah leverage
Utah’s current enforcement posture became stronger after a federal judge rejected Kalshi’s preemption arguments. In August, US District Judge Robert Shelby ruled that federal law did not stop Utah from applying its anti-gambling laws to Kalshi’s sports event contracts. The court found that Congress had not clearly required states to provide access to event contracts that state law defines as gambling.
The decision, covered in the federal court ruling allowing Utah to enforce gambling laws against Kalshi, did not end the case. Kalshi appealed, and the broader preemption question remains active. But the ruling gave Utah officials a foundation for arguing that they could proceed under state law while the appellate process unfolds.
Kalshi then sought an injunction to stop enforcement during the appeal. A two-judge panel declined, finding that the company had not met the legal standard for that relief. The panel did not decide the central question of whether federal law ultimately overrides Utah’s gambling rules, but its order preserved Utah’s ability to act in the meantime.
That interim result, detailed in Utah’s injunction win in the Kalshi dispute, is important to the current lawsuit. It meant state officials did not have to wait for a final appellate ruling before bringing their own claims. Utah’s new complaint appears designed to capitalize on that opening by seeking remedies tied to past activity as well as prospective restrictions.
A fragmented national map
Utah is not acting in isolation. Prediction markets have drawn challenges across the U.S. as state regulators argue that sports contracts resemble wagers and should be treated like gambling products. Kalshi and similar operators say the contracts are traded on exchanges and settle according to defined outcomes, placing them within federal commodities law rather than state gaming codes.
The national picture is uneven. Some courts have sided with Kalshi at early stages, while others have allowed state enforcement to proceed. In Tennessee, a federal judge granted Kalshi a preliminary injunction and concluded that its sports event contracts fall under the Commodity Exchange Act. The court’s reasoning, described in the Tennessee injunction decision, treated sports event contracts as swaps and therefore outside Tennessee’s unlicensed sports wagering framework for purposes of the preliminary ruling.
That Tennessee outcome contrasts with Utah’s federal ruling and illustrates why the legal issue is likely to move through higher courts. Different judges have assessed the relationship between event contracts, swaps, gambling laws and state police powers in different ways. For operators, inconsistent rulings threaten a state-by-state compliance maze. For states, a broad federal shield for prediction markets could limit their ability to enforce gambling prohibitions or protect licensed betting structures.
The conflict also extends beyond sports. Kalshi has pursued broader market expansion while regulators examine newer contract types. The company has asked the CFTC to approve margin trading for some non-sports event contracts, a move that would allow eligible traders to use borrowed funds. At the same time, the CFTC has warned about “mention” markets, where settlement may depend on whether a person says a word, attends an event or interacts with someone.
Those developments, covered in Kalshi’s margin-trading request and the CFTC advisory on mention markets, show the regulatory stakes are not limited to whether a game result can be traded. Federal officials are also weighing manipulation risks, collateral rules and market design as prediction markets expand into politics, culture, economics and sports-adjacent events.
Why the money claims matter
Utah’s damages theory raises the stakes beyond a declaratory fight over jurisdiction. By estimating that Kalshi generated tens of millions of dollars in fees tied to Utah accounts and that residents lost about $5.5 million on individual wagers, the state is attempting to turn its legal theory into a financial recovery case. Those figures are preliminary, but they signal that Utah may seek discovery into account activity, fee structures, market-making arrangements and customer location data.
The inclusion of subsidiaries and trading firms also matters. Utah is targeting the ecosystem around the exchange, not only the consumer-facing platform. Liquidity providers and affiliated entities can be central to how prediction markets function, particularly when new markets need pricing depth and active trading. By naming those parties, the state is testing whether participants that support contract trading can face exposure under gambling laws if the underlying products are found illegal.
The requested geolocation remedy points to another practical issue. Licensed sportsbooks routinely use geolocation tools to prevent out-of-state betting or access from prohibited areas. If a court orders Kalshi to adopt similar controls in Utah, it could push prediction markets closer to operational standards used by gambling companies, even as they maintain they are financial exchanges. If Utah fails, operators may argue that federal status limits states’ ability to demand gambling-style compliance measures.
The appellate path may decide the model
The immediate question is whether Utah can obtain relief in state court while Kalshi’s federal appeal remains pending. The larger question is whether prediction markets can offer sports contracts nationwide under CFTC oversight despite contrary state gambling laws. A ruling for Utah could embolden other states to seek restitution, injunctions and access restrictions. A ruling for Kalshi could strengthen the argument that federally regulated event markets are not subject to fragmented state gambling bans.
For now, the dispute is developing on parallel tracks: enforcement actions by states, preemption suits by operators and product oversight by the CFTC. That structure reflects the core ambiguity in the market. Prediction contracts can look like financial instruments in their exchange mechanics and like sports bets in their customer appeal. Utah’s lawsuit is an attempt to force courts to prioritize the latter when state residents trade on game-related outcomes.
Until appellate courts resolve the conflict, prediction market operators face a volatile legal environment. Utah’s case is especially important because it does not depend on protecting an existing sports betting industry. It asks whether a state with a constitutional ban on gambling must accept federally listed sports event contracts anyway. The answer could shape how far prediction markets can expand and how much authority states retain over gambling within their borders.
