The NBA has signed multi-year agreements with Kalshi and Polymarket that make both companies preferred prediction-market exchanges of the league. The arrangements give the NBA a formal role in deciding which basketball markets may be offered and establish information-sharing duties for suspicious trading and investigations.
The exchanges will gain access to NBA intellectual property, US marketing opportunities and official statistical data supplied through Sportradar for authorised markets. Financial terms were not disclosed, according to Associated Press reporting.
Integrity controls are central to the agreements. League and team personnel are barred from trading on NBA events, while Kalshi and Polymarket must share information connected to investigations and unusual activity. The NBA will also approve the categories of markets offered on its games. Comparable restrictions already apply to some sportsbook products, including selected first-event and low-minute player propositions.
The league separately signed a memorandum of understanding with the Commodity Futures Trading Commission. The CFTC announcement says the agency and NBA will communicate regularly and exchange information concerning integrity and the operation of fair, transparent prediction markets.
The commercial deals and regulatory memorandum do not settle the wider legal dispute over prediction markets. The CFTC maintains that these exchanges fall under federal derivatives oversight, while more than a dozen states have pursued litigation asserting their own gambling-law authority. The NBA's approach creates monitoring and approval mechanisms for its competitions without resolving that jurisdictional conflict.
