NBA deals bar league and team personnel from trading NBA event contracts

The NBA’s new agreements with Kalshi and Polymarket bar league and team personnel from trading NBA event contracts. The same deals require information sharing around investigations and suspicious trading, while limiting which NBA-related markets the exchanges may offer.

The NBA announced the framework on October 26. Its says the Kalshi and Polymarket agreements include “affirmative prohibitions” on NBA event-contract trading by league and team personnel, restrictions on permissible markets, and obligations to share information tied to investigations and suspicious activity.

Those controls address a basic insider-access risk: league and team personnel can possess information before ordinary traders see it. The NBA’s new rules create explicit barriers and a mechanism for sharing suspicious-trading information. They do not prove insider trading has been eliminated, guarantee a fair outcome in every market, or create compensation rights for traders who lose money.

The CFTC pact is separate from the commercial deals

On the same day, the NBA and the U.S. Commodity Futures Trading Commission signed a separate Memorandum of Understanding. The says the MOU is intended to improve communication and information sharing on integrity matters. CFTC Chairman Michael Selig specifically described insider trading and fraud as abuses the arrangement is intended to help address.

That regulatory cooperation is not the same thing as the NBA’s commercial partnerships. Under the league’s agreements, Kalshi and Polymarket became “Preferred Prediction Market Exchanges.” They receive NBA intellectual-property and marketing rights in the United States, promotional activations, and official NBA data from Sportradar for authorized NBA-related markets. separately reported the same division between the CFTC MOU and the platform partnerships.

The NBA also expanded its DraftKings relationship to include prediction markets and nationwide promotion, with additional operator partnerships expected later. None of these announcements establishes that every NBA prediction market is legal or available in every U.S. state. For traders, the concrete change is narrower: the league has attached explicit personnel-trading bans, market limits and suspicious-trading information sharing to its new prediction-market framework.