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Adam Silver Clears Giannis Antetokounmpo’s Kalshi Stake Under NBA’s De Minimis Rule

Silver cast prediction markets as essentially sports betting.

Overview

  • Silver said Antetokounmpo’s investment is "minuscule" and well below the 1% cap allowed by the league’s collective bargaining agreement.
  • The commissioner highlighted the need for tighter oversight given legal wagering across about 40 U.S. jurisdictions and roughly 80 countries.
  • The NBA is treating prediction markets as major sports betting marketplaces as their usage and valuations grow.
  • Kalshi stated that active NBA players, including Antetokounmpo, are prohibited from trading on NBA-related markets under its integrity policies.
  • League engagement included hosting Kalshi and Polymarket executives at the All-Star Tech Summit after Kalshi saw more than $23 million traded on Antetokounmpo’s team-future before the deadline.