A federal judge has delivered a preliminary victory to prediction-market platforms Kalshi and Polymarket by blocking Minnesota’s attempt to prohibit their operations. The ruling, reported by Decrypt, halts—for the time being—a state-level enforcement push that had sought to bar residents from accessing event-based trading contracts on these platforms.
The court order hinges on a critical question of federal financial law: whether the event contracts offered on these platforms constitute swaps. Under the Commodity Exchange Act and related federal regulations, certain swap agreements face strict restrictions, mandatory clearing requirements, and registration obligations that limit who may offer them and how they must be traded. Minnesota authorities had asserted that the contracts listed by Kalshi and Polymarket fell squarely into this disallowed category, rendering them illegal for retail participants under a framework that tightly controls access to derivative instruments and prohibits unregistered entities from making such instruments available to the public.
However, the judge determined that not every event contract automatically qualifies as a swap. According to Decrypt, the court found that classification depends on the specific structure, terms, and economic purpose of each individual contract, rather than applying a blanket designation to all prediction-market offerings. This granular, contract-specific approach proved decisive in the decision to issue a preliminary block against the state’s ban, as the ruling acknowledges that some event contracts may operate entirely outside the scope of federal swap regulations. The distinction between a regulated swap and an ordinary event contract therefore remains a matter of individual assessment rather than categorical assumption.
Because the order is preliminary and subject to further judicial review, the legal confrontation is far from concluded. The injunction prevents Minnesota from enforcing its prohibition while the case proceeds through the federal court system, but the underlying litigation over the regulatory status of event contracts will likely continue through discovery, motions, further hearings, and potentially a full trial on the merits. Both Kalshi, a regulated exchange that has increasingly listed markets on political, economic, and sporting outcomes, and Polymarket, a blockchain-based platform that facilitates permissionless trading on real-world events, remain central parties in the dispute and will face ongoing scrutiny as arguments evolve.
The case underscores the persistent regulatory ambiguity surrounding prediction markets across the United States. Federal and state authorities have long grappled with how to classify event contracts that allow users to take positions on outcomes ranging from elections to macroeconomic data releases. The swap definition is particularly consequential because if a contract is deemed a swap, it generally must trade on a registered derivatives exchange and comply with comprehensive oversight by the Commodity Futures Trading Commission, a requirement that would severely constrain—or entirely preclude—the business models of many prediction-market operators who lack such registrations.
By rejecting the argument that all such contracts are disallowed swaps, the court has carved out temporary breathing room for the industry within Minnesota. The ruling does not establish a permanent nationwide precedent, nor does it grant the platforms unrestricted authority to list any contract without regulatory review. Instead, it signals that courts may scrutinize swap classification on a contract-by-contract basis rather than accepting broad, generalized assertions from state regulators seeking to shut down platforms outright. As Kalshi and Polymarket continue to expand their offerings into politically and economically sensitive topics, the Minnesota decision marks an early but significant checkpoint in the broader legal effort to define precisely where prediction markets fit within the existing architecture of U.S. commodities law.