Connecticut Judge Rejects Kalshi's Entire Legal Theory: 'At Bottom, They Are Sports Wagers'

A Connecticut federal judge has rejected both halves of Kalshi's legal theory in a single order, finding its sports contracts are not swaps and that federal commodities law would not displace state gambling powers even if they were. The pause Kalshi has held since December is gone.

• US District Judge Vernon D. Oliver denied Kalshi's motion for a preliminary injunction on 10 August, writing that the company "characterizes its sports-related event contracts in various ways, but at bottom, they are sports wagers"
• The order rejects Kalshi's argument on two independent grounds: that sports event contracts do not meet the statutory definition of a swap under the Commodity Exchange Act, and that even if they did, the CEA would not preempt Connecticut's gambling laws
• The ruling lifts the pause Kalshi won in December 2025, when the same judge told Connecticut's Department of Consumer Protection to hold off enforcing cease-and-desist notices while the motion was briefed
• It follows comparable losses in Washington, Michigan and New York, with reporting indicating Kalshi is now in federal or state proceedings with at least 15 states and three tribal groups
• SBC Americas reported that Coinbase's parallel motion was denied in a separate ruling the same day

The Court Took Kalshi's Argument Apart in the Order It Was Built In

Judge Vernon D. Oliver of the US District Court for the District of Connecticut denied Kalshi's motion for a preliminary injunction on 10 August, clearing the way for the state to enforce its gambling laws against the exchange. According to reports of the order, Oliver wrote that Kalshi "characterizes its sports-related event contracts in various ways, but at bottom, they are sports wagers".

The reasoning matters more than the outcome. Kalshi's position across the United States rests on two propositions stacked on each other: that its sports event contracts are swaps regulated exclusively by the Commodity Futures Trading Commission, and that the Commodity Exchange Act therefore preempts state gambling law. Oliver rejected both, and rejected the first in a way that does not depend on the second.

On the swap question, the court held that the contracts fail the statutory definition because they turn on outcomes rather than occurrences. Oliver is reported to have written that "the term 'event' does not encompass the result of the event, meaning who wins the boxing match is not a separate event in and of itself", concluding that the contracts "fail to satisfy this portion of the statutory definition of a swap". The order also found the contracts lack the financial consequences the definition requires, which must be "embedded within" the event rather than arising from "externalities such as downstream financial effects".

On preemption, the court proceeded on the assumption that it was wrong about the first point and reached the same destination. Oliver noted that Congress expressly preempted state gaming law for certain categories of contract, which implies sports event contracts were not intended to receive the same treatment. He questioned whether Congress would have vested exclusive authority over states' historic police powers in what the order described as a "relatively small financial regulator", observing that the CFTC "has not historically regulated sports wagering and has not exercised meaningful oversight over Kalshi's sports event contracts".

The practical effect is to end a reprieve Kalshi had held for eight months. Connecticut's Department of Consumer Protection issued cease-and-desist notices on 2 December 2025 to Kalshi, Robinhood and Crypto.com over what it characterised as unlicensed sports wagering offered through online sports event contracts. Oliver paused that enforcement days later while the preliminary-injunction motion was briefed, with oral argument heard in February. That pause was always contingent on the ruling that has now gone against the exchange.

The Connecticut order lands the same week Utah became the eighth state to secure at least partial authority to restrict the platform, after a federal judge held the state could enforce its gambling laws against it. Attorney General Derek Brown intends to enforce but has not settled on a mechanism, according to Associated Press reporting cited by InGame.

Losing on the Swap Definition Is Worse for Kalshi Than Losing on Preemption

Most of the state rulings against Kalshi have turned on preemption, which is a question about the boundary between federal and state authority and can be relitigated circuit by circuit. Connecticut is different because Oliver decided the antecedent question first and answered it against the exchange: these instruments are not swaps at all. That finding does not depend on any view about states' rights, and it attacks the classification the entire business model rests on. A preemption loss says the CFTC's writ does not run far enough to protect Kalshi in Connecticut. A swap-definition loss says there was never a federal instrument to protect. The distinction will matter on appeal, because the second finding survives even if an appellate court takes a more expansive view of preemption.

The Court's Read on the CFTC Is the Line the Industry Should Notice

The observation that the CFTC "has not exercised meaningful oversight over Kalshi's sports event contracts" is not a throwaway. It converts the regulator's inaction into evidence against the very companies relying on its jurisdiction. Kalshi's argument has always been that CFTC designation is a sufficient regulatory answer, and courts are now treating the absence of visible supervision as a reason to doubt that Congress intended exclusivity here. That reasoning cuts at the sector generally, not at Kalshi alone, and it arrives while the CFTC is still running a formal rulemaking on sports event contracts. The longer that process takes to produce enforceable standards, the more often the gap will be cited in court.

Eight States Is No Longer a Patchwork, It Is a Pattern

An exchange defending itself in 15 states does not need to lose everywhere to have a problem. It needs to lose in enough places that a national product becomes a set of geofenced regional ones, which is the outcome Kalshi has already accepted in Nevada. Each adverse ruling raises the compliance cost of the next state and strengthens the next attorney general's hand. The counterweight is real and should not be dismissed: rulings have gone both ways, appeals are pending, and a single favourable circuit decision could reset the position quickly. But the direction of travel over the past year has been consistent, and Connecticut is the most thorough rejection yet.

Kalshi is expected to appeal and may seek a stay of enforcement. What it cannot do is keep arguing that this is a question about federalism, because a federal judge has just held the instruments are not what the argument assumes they are.