The NBA has picked Kalshi and Polymarket as its preferred prediction market exchanges, tying the league's official data to two platforms that let users trade on event outcomes. The agreements, announced with the Commodity Futures Trading Commission, also include safeguards against insider trading.
The move puts the NBA's stamp on a fast-growing corner of finance where contracts settle on real-world events — including, potentially, basketball games. It's a notable step for a major sports league, which typically guards its data closely and licenses it to established sportsbooks and media partners.
What the NBA gets from the deals
Under the arrangements, Kalshi and Polymarket become the league's preferred venues for prediction market trading. The NBA is expanding into prediction markets through official data agreements, meaning the platforms will have access to league data to settle contracts. The league hasn't disclosed financial terms or how revenue will be split.
The insider-trading safeguards are a key part of the pacts. Prediction markets have faced scrutiny over whether people with non-public information — team staff, referees, or others close to the game — could profit from trading on outcomes they influence. The NBA says its agreements include measures to prevent that.
Why the CFTC is involved
The CFTC is the federal regulator for derivatives, and prediction market contracts fall under its oversight. The NBA's deal with the agency suggests the league wants a clear regulatory framework as it wades into the space. The commission has been weighing how to treat event contracts, and sports leagues have pushed for a say in how markets tied to their games operate.
Kalshi is a CFTC-regulated exchange; Polymarket has operated offshore and has been working to establish a U.S. presence. The NBA's endorsement gives both platforms a degree of legitimacy with sports fans and regulators alike.
The insider-trading question
Insider trading is the thorniest issue for sports prediction markets. Unlike financial markets, where material non-public information is tightly defined, sports outcomes can be influenced by a small number of people — players, coaches, trainers, officials. The NBA's safeguards are meant to address that gap, though the league hasn't detailed exactly how they'll work.
The agreements come as prediction markets gain traction among fans who want to trade on game results, player performances, and season-long outcomes. For the NBA, the appeal is obvious: new revenue streams and deeper fan engagement. For regulators, the challenge is keeping markets fair without stifling innovation.
What happens next
The NBA hasn't said when the first markets will go live or which specific events will be tradable. The league also hasn't outlined how it will monitor trading for suspicious activity or what penalties violators would face. Those details will matter as the partnerships move from announcement to operation.
For now, the deals position Kalshi and Polymarket as the NBA's preferred venues — a designation that could shift how fans bet on basketball and how regulators police it. The CFTC's role in the arrangement will be worth watching as the agency continues to shape rules for event contracts.
