Polymarket, Kalshi Volumes Hit $150B as Regulators Scrutinize Prediction Market ETFs

Polymarket and Kalshi have crossed $150 billion in combined lifetime trading volume, but their record-setting run of monthly growth has begun to cool.

May 7, 2026 - 19:00
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Polymarket, Kalshi Volumes Hit $150B as Regulators Scrutinize Prediction Market ETFs
Polymarket and Kalshi have crossed $150 billion in combined lifetime trading volume, but their record-setting run of monthly growth has begun to cool.

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