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A Massachusetts man has launched a class-action lawsuit against Kalshi, alleging unlicensed sports wagers and the absence of self-exclusion options, raising broader questions about regulation and consumer protection in prediction markets.<\/p>\n<\/div>\n
A Massachusetts man has launched a class-action lawsuit against Kalshi, arguing that the prediction market accepted his sports wagers even though it offered no self-exclusion option for problem gamblers. The plaintiff, Nickolas Smith of Raynham, says he lost tens of thousands of dollars on the platform between January 25 and February 23 this year, and wants those losses returned along with the money paid by other users in the same position. According to the complaint, the case also targets Robinhood, which hosts Kalshi\u2019s markets on its platform.<\/p>\n
Smith\u2019s legal team says the dispute is about more than one gambler\u2019s losses. They are seeking repayment of wagers, fees and profits, while also asking a court to order Kalshi to stop taking sports bets in Massachusetts without a state licence. Their argument leans on an old legal doctrine, the Statute of Anne, which was historically used to help people recover money lost in unlawful gambling. The filing contends that Kalshi\u2019s language about \u201cderivatives\u201d masks what are, in substance, ordinary sports bets.<\/p>\n
The lawsuit arrives as Kalshi is already fighting Massachusetts regulators over the same basic question: whether its sports-related contracts amount to gambling under state law. Attorney General Andrea Campbell sued the company in September 2025, saying it was offering unlicensed sports wagering in the commonwealth. A Suffolk Superior Court judge later granted a preliminary injunction ordering Kalshi to stop taking sports wagers from Massachusetts customers until it obtained proper licensure, though the company won a stay while its appeal proceeds. The state\u2019s highest court heard arguments in late April.<\/p>\n
The complaint also highlights a gap that could resonate beyond this case: Kalshi does not participate in Massachusetts\u2019s self-exclusion system, which licensed sportsbooks must use to keep excluded gamblers off their platforms. State rules require licensed operators to check the exclusion list and refuse bets from anyone on it. For people who have taken steps to block themselves from gambling apps and casinos, that omission can leave one major route open. Smith\u2019s filing argues Kalshi either knew or should have known that people with gambling disorders would use the platform, especially after it expanded into sports markets ahead of major events.<\/p>\n
If the court allows the case to proceed as a class action, Kalshi could face a much broader financial hit. The company operated in Massachusetts for roughly a year before the injunction took effect, creating a potential pool of customers who may claim similar losses. More broadly, the case adds to growing pressure on prediction markets as they expand into sports. If courts keep treating those contracts as the legal equivalent of bets, operators may eventually be forced to adopt the same consumer safeguards expected of sportsbooks, including self-exclusion, age checks aligned with state law and tighter limits on wagering.<\/p>\n
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