Kalshi and Polymarket Prediction Market Volumes Drop by 15% in August

Trading volumes at prediction markets Kalshi and Polymarket fell by 14.5% to $45.33 billion U.S. during August, marking the first month-over-month decline in over a year. Kalshi saw its volume drop by 7.3%, reaching $37.17 billion, while Polymarket experienced a sharper decrease of 36.7%, with trading volumes at $8.16 billion. The decline followed an increase during the World Cup soccer tournament in June and July but remained higher than May's volume of $25.66 billion U.S. Both platforms are preparing for increased activity ahead of the NFL season, which begins on September 9, with intensified marketing efforts aimed at attracting more users. Kalshi and Polymarket remain privately held companies without publicly traded stocks.

By Editorial Staff Wed, September 2, 2026 at 4:37 PM GMT+3 1 min read · Yahoo Finance ·

Kalshi and Polymarket Prediction Market Volumes Drop by 15% in August

Topics: Kalshi Polymarket prediction markets trading volumes

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