Traders placed over $1 billion in bets on the outcome of the US-Israel war with Iran, with some bets accurately predicting the timing of major developments, raising concerns about insider trading and the use of non-public information for personal profit. The bets were made on online platforms such as Polymarket and Kalshi, which allow users to bet on the outcome of news events. Lawmakers and experts are calling for greater regulation of these platforms to prevent insider trading and protect the integrity of the markets. The issue has sparked debate about the ethics of betting on war and the potential for exploitation of non-public information.