The combined trading volume of Kalshi and Polymarket in August decreased by 14.5% month on month, marking the first decline in a year
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According to data from The Block, due to the end of the World Cup, the combined trading volume of Kalshi and Polymarket in August decreased to $45.33 billion, a decrease of 14.5% compared to the previous month, marking the first monthly decline since August 2025. Among them, the trading volume of Kalshi in August was 37.17 billion US dollars, a decrease of 7.3% compared to the previous month; Polymarket and its US platform totaled $8.16 billion, a month on month decrease of 36.7%.