NBA Commissioner Signals Caution on Prediction Markets as Other Leagues Explore Partnerships
As prediction markets deepen their reach across professional sports, the NBA is signaling a cautious posture, publicly grouping the platforms alongside traditional sportsbooks.
NBA Commissioner Adam Silver said the league views prediction markets as a form of sports betting, effectively placing them within the same integrity framework that governs licensed sportsbooks.
Speaking around All-Star Weekend, Silver also downplayed concerns surrounding Giannis Antetokounmpo’s investment in Kalshi, brushing off suggestions that it presented a league-level conflict.
The commissioner’s stance matters. The debate over whether prediction markets fall under federal commodities law or are considered gambling products regulated at the state level has become a central regulatory question confronting U.S. sports leagues.
For now, the NBA appears to be anchoring prediction markets within its existing sports-betting integrity framework, even as other leagues experiment commercially or signal conditional openness.
Silver Addresses Giannis’ Kalshi Investment, Classification of Prediction Markets
Giannis’ Kalshi Involvement “Minuscule”
Speaking on Saturday, Silver commented on Giannis Antetokounmpo’s investment in Kalshi.
He said that, per a collectively bargained rule with the Players Association, NBA players can invest less than 1% in sports betting companies. He called Giannis’ investment “minuscule.”
“In the case of Giannis, from what I understand, it’s a minuscule investment. Much smaller than 1%, so that does not violate the rules that have been collectively bargained with the Players Association.”
Silver: Prediction Markets Treated ‘Essentially’ the Same as Sportsbooks
Silver continued to address prediction markets:
“We currently are looking at prediction markets essentially in the same way that we’re looking at sports betting markets or sports betting companies,” Silver said.
“It’s rapidly evolving. Prediction markets have now come on the scene fairly recently as, I don’t know how else to say it, major sports betting marketplaces. Whether prediction markets are allowed to go forward in the form they’re in now will, I think, be ultimately an issue for the courts and for Congress.”
Still, Silver expressed concerns about the volume of betting on the league globally. He said the NBA is dealing with 40 states and over 80 jurisdictions worldwide that allow betting on the league. Silver said the league must better manage that scale of betting activity.
Closed-Door Conversations at All-Star Weekend
The league’s public caution comes even as prediction-market executives remain embedded in the broader sports-betting ecosystem.
The CEOs of Polymarket and Kalshi were panelists on the “Prediction Markets: The Impact on Sports and Beyond” panel at Friday morning’s NBA All-Star Tech Summit.
The invite-only, closed-door summit included leaders from MGM Resorts, FanDuel, DraftKings, and Fanatics. The broader summit lineup also featured executives from media, sports, and artificial intelligence companies, as well as former President Barack Obama.
The juxtaposition underscores the complexity of the moment: prediction-market operators are gaining access to the same industry forums as major sportsbook executives, even as regulatory classification and integrity oversight remain contested.
Heightened Sensitivity Around Integrity
Silver’s comments also arrive during a period of elevated scrutiny around gambling-related matters within the league.
The NBA has faced a series of gambling investigations tied to alleged insider information and suspicious betting activity. In 2024, the league permanently banned former Raptors player Jontay Porter.
In October 2025, federal investigators charged multiple people, including Miami Heat guard Terry Rozier, Portland Trailblazers Head Coach Chancey Billups, and former NBA player and assistant coach Damon Jones. Last month, authorities revealed that they are expanding their inquiries into additional games. The scope of the investigation is unknown.
Malik Beasley has also faced investigation after suspicious prop-betting activity surfaced during his time with the Milwaukee Bucks in 2024. While the FBI closed the probe, the NBA reopened it last fall. The scrutiny reportedly cost Beasley a new NBA contract, and he later signed with Bad Bunny’s Puerto Rican club, the Santurce Crabbers.
Meanwhile, one bettor tied to the alleged scheme has already received a two-year prison sentence, with others awaiting sentencing.
The league has not linked those matters to its posture on prediction markets. Still, the broader enforcement backdrop reinforces why integrity oversight and regulatory clarity remain central to the NBA’s approach.
How the NFL, MLB, MLS, and NHL Are Responding
NFL Maintains Guardrails While Leaving Door Open
The NFL has publicly outlined concerns about prediction markets while leaving open the possibility of future engagement pending regulatory clarity.
The league has historically taken a cautious approach to gambling. In December, NFL Executive Vice President Jeff Miller submitted written testimony to the House Committee on Agriculture outlining the league’s concerns. Miller said the NFL is “particularly troubled” by the launch of prediction markets in jurisdictions without legal sports betting.
Commissioner Roger Goodell echoed that posture in public remarks, saying the league would wait for clearer regulations and the resolution of ongoing litigation before considering engagement. He reiterated that integrity is “incredibly important” to the NFL.
The league has also made clear that it views prediction markets as gambling entities under its policies. An NFLPA spokesperson told Front Office Sports that players are not permitted to endorse or serve as brand ambassadors for companies such as Kalshi or Polymarket.
However, recently the league signaled openness, primarily due to increased fan engagement, a key reason for the NFL’s embrace of sports betting.
Before the Super Bowl, Miller told Front Office Sports on prediction markets: “It’s innovative, that marketplace is dynamic.”
“There’s no question that we’re going to be spending a lot of time talking about this in the coming months, and maybe even years.”
Still, he reiterated that the NFL remains cautious on the regulatory front.
MLB Signals Conditional Openness
Major League Baseball, which is also dealing with gambling-related integrity issues, appears to be taking a more fluid approach.
Last year, MLB circulated a memo warning players about involvement with prediction markets. However, earlier this month, Commissioner Rob Manfred indicated the league would consider being “in business” with prediction markets. He signaled potential openness, subject to regulatory developments.
That shift suggests MLB is weighing commercial opportunity against integrity safeguards, rather than drawing a firm public line.
MLS and NHL Lean Commercial
The NHL became the first league to embrace prediction markets, announcing separate deals with Polymarket and Kalshi in the fall. The league defended its decision, saying the partnerships give it greater control over which contracts the platform can offer and shut down any that raise integrity questions.
A few weeks ago, MLS also announced a partnership with Polymarket. MLS Deputy Commissioner and President of Soccer United Marketing Gary Stevenson said that the partnership allows the league to “integrate prediction markets as a new fan engagement format and position MLS as an early leader among global soccer properties.”
A Defining Regulatory Moment
At the center of the debate is jurisdictional authority. Prediction markets are regulated by the Commodity Futures Trading Commission (CFTC), while sportsbooks are regulated at the state level. That distinction affects everything from integrity monitoring to advertising rules and responsible-gaming safeguards.
For leagues, the question is less about product mechanics and more about governance: should prediction markets be subject to the same integrity protocols as sportsbooks when they offer contracts tied to game outcomes?
By publicly equating the platforms with sports betting, Silver positioned the NBA closer to an integrity-first framework than to the commercial-embrace stance of MLS and the NHL.
Whether that posture evolves will likely depend on regulatory clarity, ongoing litigation, and how or if prediction markets address integrity and consumer protection concerns.
For now, as prediction markets proliferate in professional sports, the NBA is signaling a cautious, oversight-first approach.
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