The deals were completed shortly before President Donald Trump and Iranian Foreign Minister Abbas Araghchi made important announcements.
At least four suspicious events are under investigation. In the deals, traders made more than $2.6 billion (around SEK 24 billion) by betting that oil prices would fall before they actually did.
A suspicious deal took place on March 23. More than $500 million was wagered on falling oil prices fifteen minutes before Trump announced he would postpone promised attacks on Iran's power grid.
