Suspicion of Insider Trading Arises in Polymarket Ceasefire Bets

Three newly created wallets have collectively profited $484,575 by betting on a ceasefire between the United States and Iran, raising concerns of potential insider trading. According to Cointelegraph, these wallets were established and funded on Tuesday, with no prior activity before engaging in Polymarket's 'US x Iran ceasefire by April 7' market. Blockchain data shared by Lookonchain on Wednesday revealed the profits for the three wallets amounted to $200,525, $158,600, and $125,450, respectively. The bets were placed with probabilities ranging from 2.9% to 10.3%. The latest trader on Polymarket made their initial trade in the 'US x Iran ceasefire by April 7' market at 1:59 pm UTC on Tuesday, approximately eight and a half hours before U.S. President Donald Trump announced a ceasefire agreement on TruthSocial at 10:32 pm UTC. The other two traders placed their first bets at 10:01 am UTC on Tuesday and 8:50 pm UTC on Monday. The bets were settled after the U.S. and Iran's Supreme National Security Council agreed to a two-week ceasefire on Tuesday, although both nations have not ruled out the possibility of further military actions. Prediction markets, which have become a rapidly growing application for cryptocurrency, consistently exceed $10 billion in monthly trading volume. However, these platforms are under intense scrutiny from lawmakers and regulators worldwide due to concerns about insider trading and market manipulation. In January, U.S. lawmakers proposed a bill to prevent government officials from trading on prediction market platforms after a Polymarket user gained over $400,000 from a market concerning Venezuelan President Nicolás Maduro's capture by U.S. forces, raising suspicions of insider knowledge. In February, Israeli authorities arrested and charged two individuals for allegedly using confidential information to place bets on Polymarket regarding Israel striking Iran in June 2025. One of the arrested individuals was a member of Israel's military. To combat insider trading, Polymarket and Kalshi have implemented measures to identify and prevent such activities. In February, Kalshi announced the formation of an independent advisory committee and a partnership with crypto trading surveillance platform Solidus Labs to detect, investigate, and address market abuse.