Kalshi US visits soar 1,500% as regulatory pressure mounts
Kalshi’s US web traffic climbed more than 1,500% in less than a year, while trading volume grew even faster and legal scrutiny of its sports contracts intensified.
Kalshi, a prediction market platform, experienced an astonishing surge in US web traffic, soaring by more than 1,500% in just over a year. This dramatic increase in online visitors, combined with an even more rapid growth in trading volume, has drawn significant attention from regulators and courts. In July 2026, Kalshi recorded 15.4 million US visits, a staggering 1,520% jump from just under 1 million visitors in August 2025.
US traffic accounted for nearly 80% of Kalshi's total traffic in July, up from 72.8% in August 2025, indicating that the platform's expansion has been primarily driven by its American user base.
The surge in traffic has been accompanied by a parallel surge in trading activity. In August 2026, Kalshi reported a monthly notional trading volume of approximately $40 billion, a 4,500% increase from $874 million in August 2025. This rapid growth in trading volume, alongside the substantial rise in web traffic, has positioned Kalshi as a dominant player in the prediction market industry, accounting for nearly 79% of the industry's total monthly notional volume, which had expanded to $50.7 billion from $2 billion over the same period.
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