Kalshi sets back-to-back daily volume records as parlays drive 70% of trading

The CFTC-regulated prediction market posted $3.91 billion and $3.96 billion on consecutive days, with combo contracts doing most of the heavy lifting Kalshi just had the busiest weekend in its history. Then it topped that the next day. The CFTC-regulated prediction market recorded $3.91 billion in notional volume on October 10, 2026, followed by $3.96 billion on October 11. Both figures beat the prior single-day high of $3.68 billion, set on October 4. That record had been standing for a grand total of one week.

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