NBA Star Giannis Antetokounmpo Becomes Shareholder in Prediction Market Kalshi

Milwaukee Bucks forward Giannis Antetokounmpo has taken a stake in prediction market platform Kalshi, marking the first time an active NBA player has directly invested in the federally regulated event-contracts exchange.

The two-time NBA MVP announced the partnership Friday, saying he will join Kalshi as a shareholder and collaborate with the company on live events and marketing campaigns.

Kalshi confirmed the agreement in a statement, adding that Antetokounmpo will not be allowed to trade on any NBA-related markets due to internal rules prohibiting insider trading and manipulation.

Inside Kalshi’s ‘Yes-or-No’ Prediction Trading Markets

Kalshi operates a marketplace where users trade “yes or no” contracts tied to real-world outcomes.

The platform lists markets spanning politics, entertainment and sports, allowing traders to take positions on events such as award winners or championship results.

Earlier this week, the service even hosted a market on whether Antetokounmpo himself would be traded before the NBA deadline.

Although money changes hands, the platform is treated as a financial exchange rather than a sportsbook.

As a result, Kalshi is permitted to operate across the United States under federal oversight, avoiding the patchwork of state gambling regulations that apply to traditional betting operators.

The NBA’s collective bargaining agreement allows players to promote betting companies under certain conditions, provided they do not advertise wagers on NBA, WNBA or G League games.

Players may also hold passive equity stakes of up to 1% in such businesses. Antetokounmpo’s investment falls within those limits.

“I like to win. It’s clear to me Kalshi is going to be a winner and I’m excited to be getting involved,” Antetokounmpo said.

We all on @Kalshi now pic.twitter.com/cCNGxfLWO8

— Giannis Antetokounmpo (@Giannis_An34) February 6, 2026

He is not the first basketball figure linked to the company. Phoenix Suns star Kevin Durant is reportedly an indirect investor through the 35V venture fund he co-founded with agent Rich Kleiman.

The move comes amid heightened scrutiny of sports wagering. US authorities recently filed gambling-related charges involving several basketball figures, and regulators have been examining the expanding overlap between trading platforms and betting markets.

The NCAA previously asked Kalshi to modify wording on its site that suggested an official relationship with the organization.

Kalshi Expands Sports Push With NHL Deal and Athlete Endorsement

Despite the attention, Kalshi has been expanding its sports presence.

The company announced a partnership with the NHL in October and, in January, signed professional golfer Bryson DeChambeau as its first athlete endorser, including appearances and promotional campaigns tied to events in which he competes.

Kalshi has also secured a major media breakthrough after signing a partnership with CNN, making the company the network’s official prediction markets partner while closing a $1 billion funding round at an $11 billion valuation.

Web3 prediction markets have crossed $13 billion in cumulative trading volume, marking a record high even as broader crypto markets cool.

The surge has drawn in major players across tech and finance, including Fanatics, Coinbase, and MetaMask, all of which have recently launched or expanded event-trading platforms.