NBA Commissioner Adam Silver announced on October 9, 2026 that the league wants access to prediction market data to detect manipulation and combat insider trading on contracts tied to its games and business. In April 2026, the league submitted a proposal to federal regulator CFTC including restrictions on player prop and injury markets, a minimum trading age of 21, and a ban on league personnel trading on these contracts. The NBA is also negotiating potential partnerships with prediction market platforms Kalshi and Polymarket covering data sharing and marketing. Prediction market volume reached 3.3 billion dollars on the first Sunday of the 2026 season, with football accounting for 1.8 billion dollars of that total, according to an NFL amicus brief filed on October 8, 2026.
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