Polymarket, the Polygon-based prediction market, processed $118 million in trading volume on the opening day of the 2026 FIFA World Cup.
The platform’s flagship “World Cup Winner” market has now reached approximately $2 billion in cumulative trading volume.
The numbers behind the frenzy
Daily trading activity during the opening stretch of the tournament landed between $118 million and $138 million.
France and Spain sit as co-favorites in the winner market, each carrying roughly 17% implied probability. For a 48-team tournament (the expanded format debuting this year), having two teams essentially tied at the top tells you the field is wide open, and bettors are spread accordingly.
