Polymarket has been exposed for alleged insider trading characteristics in betting approximately $200 million over six months.

According to Odaily Planet Daily, from January to June 2026, approximately $200 million in bets on the Polymarket platform were flagged for suspected insider trading. These trades were primarily concentrated on geopolitical events such as the Iran war and the situation in Venezuela. Data shows that 57% of the profitable wallets were created within 24 hours of the trades, with some related wallets profiting approximately $1.6 million by betting on events related to US military operations. Furthermore, a significant amount of suspected insider trading funds were deposited through regulated US cryptocurrency exchanges, with approximately 71% of traceable funds in the Iran-related markets originating from US-regulated cryptocurrency exchanges. Polymarket stated that it has strengthened its monitoring mechanisms and has submitted nearly 100 suspicious wallet addresses to law enforcement agencies. (Bloomberg)