Trading
Kalshi and Polymarket combined volume more than doubled to $53 billion from May to July
Combined trading volume on Kalshi and Polymarket more than doubled from May to July this year, surging from $26 billion to $53 billion, according to the report. The spike was driven by sports-related markets.
Why this matters?
The $53 billion summer run signals that sports event contracts have become a genuine volume driver for regulated prediction markets, not just a sideshow to political trading.
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