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Sports trading dominates on Kalshi, while Polymarket trading is more varied

Sports trading dominates on Kalshi, while Polymarket trading is more varied
Monthly global trading volume on Kalshi and Polymarket, in U.S. dollars
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Note: Polymarket does not include Polymarket US. Data through April 2026 shown.
Source: Pew Research Center analysis of data from The Block, accessed May 2026.
PEW RESEARCH CENTER

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