Ninth Circuit hands Nevada the power to enforce gaming law against Kalshi's sports markets

The arithmetic Kalshi was selling was one registration instead of fifty. It runs a single CFTC-regulated designated contract market, and nobody disputed that the sports contracts traded there ^[8], but the venue was marketed, in language the panel quoted back at the company, as an app for legal sports betting across all 50 states ^[16], a 50-to-1 substitution ^[23] that only holds if the federal exclusivity over swaps executed on such a market ^[6] reaches contracts on who wins. The panel said it does not: a market on whether the Super Bowl takes place concerns occurrence, a market on which team wins concerns outcome ^[2], and outcome contracts function as sports bets ^[1].

The more interesting holding, or rather the one that matters to anyone underwriting this business, is the second one. Self-certifying and listing the contracts bought no federal protection from state law, because the Commodity Exchange Act's special rule for event contracts and its related regulation let the CFTC itself review and prohibit contracts involving gaming when it finds them contrary to the public interest ^[9]. So the shield is discretionary in Washington and, in the Ninth Circuit, unavailable in Carson City. Judge Ryan Nelson's line that the CFTC is not a national gambling regulator, and that no one suggested it was until more than a decade after the law passed ^[15], sits next to a major questions point that no change in agency leadership can fix, since the argument is that Congress never made the delegation at all ^[19].

The cover was thin from the start. The preliminary injunction was granted in April 2025 and dissolved that November ^[12][10], about seven months of protection ^[22], and the appeal then failed on express, conflict and field preemption at once ^[20], with the panel finding no abuse of discretion on irreparable harm, the equities or the public interest ^[21].

From here it can go three ways, and they price very differently. Kalshi wins upstairs, helped by the conflict with April's New Jersey ruling ^[5], and an unlicensed national footprint becomes an asset no licensed book can match. Or it redesigns onto the occurrence side of the panel's line ^[2], which is a much smaller book. Or it buys state licences one at a time, which makes it a sportsbook priced on hold percentage and marketing spend. This is probably wrong, but my read is that the cash ends up in the third, because a company whose own marketing is now evidence against it ^[16] has a weak hand at the negotiating table with regulators whose counsel is already treating the question as answered: Nevada's Nicole Saharsky said the decision confirms that states regulate sports betting, and Arizona Attorney General Kris Mayes welcomed it ^[7]. The counter-thesis, which I would take seriously, is that the split is the asset, since one favourable appellate resolution restores the whole model and costs less than fifty licensing applications. Note what the litigation strategy has been crowding out either way: state compliance headcount, licence filings, and the local partnerships a licensed operator needs before it can take a bet.

Until a court above the Ninth Circuit says otherwise, the wrapper is worth what a state gaming board says it is worth.