US media exposed multiple suspected "insider trading" incidents related to Iran's war affairs.

According to a report from the Wall Street Journal on March 9, more than $760 million worth of crude oil futures contracts changed hands after President Trump suddenly announced a suspension of the strike against Iran on March 23. On March 23, Trump posted on social media that the dialogue between the US and Iran over the past two days had been "very good and productive," and that the US had decided to "postpone" the strike on an Iranian power station for 5 days. According to data from the Market Data Division of the Dow Jones Company, more than $760 million worth of crude oil futures contracts changed hands in less than two minutes about 15 minutes before Trump's post. The report also revealed that this week, three accounts registered on the PredictIt prediction market website in the US Poli market profited over $600,000 by "accurately betting" that the US and Iran would declare a ceasefire. The report mentioned that the unusual trading activities have raised widespread concerns in the market, suspecting that someone may have been able to obtain insider information about policy adjustments by the Trump administration in advance and profit from it. Some Democratic lawmakers in the US believe that the prohibitions against insider trading by federal government officials are not sufficient, as prediction websites allow users to place anonymous bets and cash out. Democratic Senators Richard Blumenthal and Andy Kim introduced a bill in March this year that aims to completely ban prediction markets involving wars or military actions. Blumenthal stated that prediction markets are turning warfare into gambling.