Trading volumes on Kalshi and Polymarket both hit record highs in June. Rothera, a new prediction market platform, was also able to manage $2 billion in volume.

Among the three, Kalshi saw the largest month-over-month increase in volume, growing 87.4% to $31.5 billion from $16.81 billion.

Trading volumes on Kalshi and Polymarket both hit record highs in June. Rothera, a new prediction market platform, was also able to manage $2 billion in volume.