Polymarket launched a new category of prediction markets for private company milestones this week, even as it faces allegations that nine interconnected accounts used insider information to net $2.4 million from bets on U.S. military actions in Iran. The Irish government has now initiated an examination into these suspicious bets.
On Hard Fork, Casey Newton highlighted data from the Anti-Corruption Data Collective showing that long-shot bets on defense-related markets saw a 52% win rate, a massive outlier compared to the typical 14% win rate on the platform. As Newton put it, "a group called the Anti-Corruption Data Collective analyzed more than 400,000 prediction markets settled on Polymarket over the last five years, and they found that long shot bets related to military or defense had an average win rate of about 52%."
The skepticism isn't limited to defense bets. Newton also pointed to broader systemic risks for retail users, noting, "on Polymarket, more than 70% of users lose money on the platform." While The Indicator from Planet Money host Ricky Mulvey remains focused on the legislative push to curb these activities, mentioning that he is "looking into how these markets can be regulated" with Richard Blumenthal, the regulatory environment is clearly tightening as countries like Brazil move to block access entirely.
