Meta Building Prediction Markets App, Sending Rival Stocks Lower

According to media reports, Mark Zuckerberg personally tasked Meta teams with building a prediction markets platform internally codenamed Arena. The project envisions a venue where users can place bets on outcomes of real-world events, from politics to sports. The news immediately weighed on shares of Kalshi and other specialized players in the space, as competing against Meta's multi-billion user base is extremely difficult. Analysts note Meta holds a unique advantage with its ready-made user base and advertising ecosystem. Prediction markets are experiencing rapid growth following regulatory approval in the US, and Meta's entry could make them a mainstream financial instrument.