Iran-US Ceasefire Bets Face Insider Trading Concerns on Polymarket

A surge of investment in prediction markets wagering on a potential ceasefire between the United States and Iran has triggered concerns of insider trading, according to a report in the UK’s The Guardian. The Polymarket platform has seen hundreds of thousands of dollars flow into bets on whether a truce will be reached by March 31st.

The activity centers around eight newly created accounts, established around March 21st, which collectively invested approximately $70,000 (roughly 100 million Korean won) in bets predicting a ceasefire. If a ceasefire materializes by the end of the month, these accounts stand to profit an estimated $820,000 (approximately 1.2 billion Korean won).

Polymarket developer Ben Yorke acknowledged that large investors sometimes utilize multiple accounts to minimize market impact or conceal non-public information. However, the anonymity of the accounts and the apply of cryptocurrency for betting complicate efforts to definitively determine whether insider information was involved.

This is not the first time Polymarket has faced scrutiny over potentially problematic trading activity. Previously, substantial bets were placed on the possibility of a U.S. Invasion of Venezuela, raising similar questions about the source of the information guiding those wagers. These incidents prompted Polymarket to strengthen its regulations, prohibiting trading on events where users possess non-public information or could influence the outcome.

Another prediction market platform, Kalshi, has implemented restrictions on trading related to political candidates and sports, further indicating a growing awareness of regulatory risks within the industry. This trend coincides with increasing attention from U.S. Lawmakers.

Senators Adam Schiff, a Democrat, and John Curtis, a Republican, recently introduced legislation to ban predictive betting on sports events. If enacted, this legislation could pose challenges to platforms like Polymarket.