How online prediction markets got people betting on nuclear war

As Israel and the U.S. launched an attack on Iran in late February, which quickly spilled into a region-wide war, betters on prediction market platform Polymarket have been monetising on the prospect of a nuclear weapon detonation.

In a since-deleted market on the platform, Polymarket users were betting on the chances of a nuclear weapon strike in 2026. But who is gaining from these bets, and is the issue more than ethical? 

Prediction markets are online platforms where people can place bets on pretty much everything ...