Judge grants Massachusetts injunction against Kalshi’s sports offers
Summary
A Massachusetts judge granted a preliminary injunction enabling state regulators to bar Kalshi from offering sports proposition and parlay contracts in the state without a sports betting licence. Suffolk County Superior Court Judge Christopher Barry-Smith ruled in favour of Massachusetts Attorney General Andrea Campbell, who sued Kalshi in September arguing the prediction market is operating as an unlicensed sportsbook. The injunction is due to take effect on Friday; Kalshi may appeal.
Key Points
- Judge Christopher Barry-Smith granted a preliminary injunction requested by Massachusetts AG Andrea Campbell.
- The ruling targets Kalshi’s sports proposition bets and parlay contracts, which the judge said mirror digital gambling experiences.
- Massachusetts contends Kalshi must hold a sports betting licence to offer sports-event markets in the state.
- Kalshi faces similar litigation in several US states — notable rulings have differed between states (Nevada, Maryland, New Jersey, California).
- Federal rulings have conflicted: some judges treat prediction markets as CFTC-regulated (not state gambling), others allow states to regulate them as gambling.
- Regulators argue unlicensed sports wagering raises public-health risks and must be strictly regulated to mitigate addiction and financial harm.
Content summary
The injunction follows AG Campbell’s September suit claiming Kalshi derives a large share of revenue from sports offerings and therefore must be licensed under state sports-betting laws. In his order, Judge Barry-Smith observed that Kalshi ‘mirrors other digital gambling experiences’ and uses gambling terminology while offering proposition and parlay contracts.
Kalshi is embroiled in litigation across several states. A Nevada judge initially blocked state action but later reversed that decision, allowing regulators to treat some Kalshi contracts as illegal gambling; a federal judge in New Jersey granted Kalshi a preliminary injunction against state action and that case is now before the Third Circuit. California saw a different outcome: a judge rejected tribal parties’ attempt to bar Kalshi on tribal land, citing CFTC oversight. Regulators from multiple states, plus a coalition of attorneys general, have pushed back against Kalshi’s interpretation of the Commodities Exchange Act (CEA) as a shield from state regulation.
Context and relevance
This ruling is part of a wider, unsettled legal battle over whether prediction markets offering sport-related contracts fall under federal commodities rules or state gambling laws. The outcome in Massachusetts strengthens state regulators’ position and increases operational and legal risk for prediction-market operators and for mainstream sportsbooks that are expanding into prediction-style products. The decision could influence licensing enforcement, regulatory strategy and where operators choose to offer these products.
Author style
Punchy: This is a clear win for state regulators and a reminder that courts are split — but state-level scrutiny is real and rising. Operators and sportsbooks experimenting with prediction products should take notice now, not later.
Why should I read this?
Because if you work in gambling, compliance, or run products that look like bets, this affects where and how you can sell them. Short version: states are fighting back, and the rules could change where you operate — so read the detail if you don’t fancy surprise enforcement action.