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At close · Fri, Aug 7, 2026
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HomeCryptoMarket StructureKalshi and Polymarket open interest declines after Wor…

Kalshi and Polymarket open interest declines after World Cup run

The Block reports that open interest at prediction market operators Kalshi and Polymarket fell by 20% as the World Cup frenzy wound down.

According to The Block, sports made up 80% of both platforms' total volumes during the long tournament period.

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