Eight major prediction market platforms recorded $3.12bn in trading volume on the first Sunday of the NFL season, according to the report. Kalshi reported $2.433bn in volume that day, while individual NFL contracts on the platform generated more than $590m during the opening week.
The figures show the scale of prediction-market activity linked to NFL games during the season’s opening weekend.
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The NFL has submitted an amicus brief supporting New Jersey’s bid to bring sports prediction market oversight before the US Supreme Court. The league wants clarification on the division of authority between the CFTC and state gambling regulators. Kalshi supports nationwide federal rules, while the court is not expected to announce whether it will take the case before December.
New Jersey officials want the US Supreme Court to take up a case about which authority oversees contracts tied to sports prediction markets, and the NFL has now backed that request in an amicus brief. According to the filing, the league told the justices that appellate courts have reached conflicting conclusions on the question, which turns on whether the Commodity Futures Trading Commission holds primary responsibility or whether state gambling regulators do. Whether the court grants review will not be known before December, the filing indicates.
The NFL has asked the US Supreme Court to allow states to regulate prediction markets. Its position challenges federal treatment of contracts linked to sports.
The NFL has confirmed it prohibits prediction market advertising across games, stadiums, club agreements and player endorsements. The restrictions also prohibit corporate branding by permitted sportsbook partners. DraftKings said it obtains advance clearance for every advertisement it runs during NFL broadcasts.
The NFL has confirmed that it prohibits all prediction market advertising during its games, according to emailed comments from Tim Schlittner, the league's director of communications. The prohibition also covers in-stadium signage, club sponsorships and player endorsements, the league said. It is the first time the league has stated the policy on the record.
The NFL wants stronger regulation of potential prediction market partners, citing CNBC. NFL commissioner Roger Goodell has said the league will take its time over such partnerships.
The NFL repeated its objections to certain prediction market bets in a September 4 letter to operators. NFL chief compliance officer Sabrina Perel said exchanges continued offering contracts involving categories the league opposed, including player injuries and officiating.