The Ninth Circuit just told Kalshi to stop pretending. On a 3-0 vote, Judges Ryan D. Nelson, Bridget S. Bade, and Kenneth K. Lee held that Kalshi’s sports event contracts are sports bets, not federal swaps under the Commodity Exchange Act, and that Nevada can enforce its gaming laws against them.
Nelson’s opinion did not hedge. “For Kalshi to deny that its sports event contracts are sports bets under a reasonable person’s understanding is disingenuous.” He went further: “That Kalshi’s sports event contracts are, in reality, sports bets is not just an ‘I know it when I see it’ issue. Rather, everyone, including Kalshi, knows it when they see it.” The panel also nailed the marketing problem. Kalshi described and sold these products as “legal sports betting,” then argued in court they were something else. Nelson called that strain on credulity exactly what it was.
I read that language as the end of the costume. Prop bets, point spreads, specific scores, multi-leg parlays. The payout tracks a team or a player. Calling the package a “swap” on a designated contract market does not rewrite the substance. The court said the same thing in plainer English: “The substance of the sports event contracts offered on Kalshi’s DCM is sports gambling, regardless of whether Kalshi calls them swaps.”
Congress Never Handed Them the Wrecking Ball
Nelson’s sharpest line lands on the bigger claim Kalshi needed to win. “Congress did not take a wrecking ball to all sports gambling regulations built up over decades by federal, state, and tribal governments when it amended the CEA.” That is the whole preemption theory, flattened. The CEA’s Special Rule for event contracts involving gaming, plus CFTC regulation 40.11, already bars contracts related to gaming. Judge Kenneth K. Lee’s concurrence put the operational point cleanly: the regulation remains on the books and controls this appeal, even if the CFTC has proposed changes.
The panel also held Kalshi’s self-certification and listing of the sports contracts unlawful under that framework. Concurrent unpublished opinions reached the same result against Crypto.com’s North American Derivatives Exchange and Robinhood Derivatives. Oral argument in San Francisco back in April already telegraphed the skepticism. The written opinion delivered it without mercy.
This creates the circuit split everyone on the timeline is already pricing. The Third Circuit, in a 2-1 decision earlier in 2026, had kept a preliminary injunction alive against New Jersey regulators on the theory these contracts are swaps under exclusive CFTC jurisdiction. Nevada’s path is now the opposite. The district court had granted then dissolved the injunction; the Ninth Circuit affirmed the dissolution on the sports contracts and remanded the election-contract questions. Kalshi, the Nevada Gaming Control Board, and the CFTC had no immediate public comment the day the opinion dropped. The CFTC had filed an amicus supporting the prediction-market position and still lost the sports piece cold.
The Books Got Paid Before SCOTUS Even Takes the Call
DraftKings shares jumped roughly 7 percent on the ruling. Flutter, FanDuel’s parent, rose more than 6 percent. That is the market telling you who just bought time. American Gaming Association President Bill Miller called it “a significant win for consumer protection.” I buy the shorter version: it is a significant win for the operators who already sit inside state licensing, tax, and integrity regimes that prediction markets spent years trying to route around with federal swap language.
I am not mourning the product. Prediction markets can still exist. They just cannot keep laundering sports wagering through the CEA and then dare state gaming boards to do something about it. The Ninth Circuit forced the product back into the category it already occupied in every user’s head and every marketing deck. When the court walks through the bet types Kalshi users can place and notes the payout structure, the “event contract” framing collapses. Everyone already knew. The panel simply wrote it into published law.
The SCOTUS path is now obvious because of the split. Until then, states inside the Ninth Circuit have a green light to treat these sports contracts as the bets they are. Other jurisdictions will watch the remand on election contracts and the parallel Crypto.com and Robinhood tracks. Bettors should watch the practical outcome, not the branding fight: traditional books just got regulatory oxygen, prediction-market sports volume faces real state enforcement risk, and the next chapter gets written in Washington or in another round of district-court briefing.
The disguise failed the reasonable-person test. Nelson said everyone knows it when they see it. The stock tape already agreed.
