How prediction markets evolved into sports gambling behemoths
Open interest in Kalshi sports contracts has surged past any other category as lawsuits threaten operations
Open interest in Kalshi sports contracts has surged past any other category as lawsuits threaten operations

Initiative highlights rapid evolution of events betting from quaint origins offering wagers on Oscars and elections

As new bettors flock to platforms such as Kalshi and Polymarket, some make easy prey for trading firms and professional gamblers

Value of bets soars from $100mn to $13bn a month

Site known for bets on political predictions could soon create and host all manner of markets

Insider bets, low liquidity and regulatory gaps complicate efforts to turn wagers into financial tools

DraftKings and Flutter shares slide as investors fret about threat posed by apps such as Kalshi