By Michael Calderone

The stunning U.S. strike on Venezuela and the capture of President Nicolás Maduro earlier this month was a momentous event, and for one mysterious Polymarket trader, a very lucrative one. 

Someone bet on Maduro’s ouster just hours before the military operation on Polymarket, the wildly popular bet-on-everything tool, taking home more than $400,000 and raising suspicions about their identity. “It’s more likely than not that this was an insider,” one expert told the Wall Street Journal.