The surge in prediction markets, where users bet real money on events like elections and wars, has exploded 400% to nearly $64 billion. But the data paints a grim picture.
A Wall Street Journal analysis of Polymarket found more than 70% of users lose money. On Kalshi, losing users outnumber winners by almost 3 to 1. The top 1% of traders capture 76% of all profits, while the bottom 10% lose an average of $4,000 each.
The winners aren't smarter-they're faster. Researchers found automated bots enter markets early at better prices, beating retail traders who often pick the right outcome but still lose money trading late.
Insider trading is rampant. A Green Beret was charged with using classified information to make $400,000 betting on the timing of the Maduro capture. A trader made nearly $1 million betting on Israeli strikes on Iran hours before the public knew. Political candidates have traded on their own candidacies.
Washington is backing away. The Senate unanimously banned members from trading prediction markets. The CFTC named insider trading a top priority.
The one rule: if anyone could have advance information about a bet's outcome, don't make it. That rule eliminates most prediction market bets. Even those that pass leave you fighting bots with a 70% chance of losing.