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Kalshi leads sports contract activity as daily turnover reaches $568 million

DeFi Rate reports sports markets traded 568 million dollars in the last 24 hours across Kalshi, Polymarket US, Polymarket, Novig, Rothera, DraftKings Predictions and Underdog Exchange, with Kalshi at 333 million dollars and open interest at 664 million dollars on Kalshi and Polymarket US.

Sports prediction markets generated $568 million in trading over the last 24 hours, a 36 percent increase, according to DeFi Rate. The figures were published on Nov 7, 2026, at 4:15 PM ET.

Kalshi accounts for the largest share

The reported total spans Kalshi, Polymarket US, Polymarket, Novig, Rothera, DraftKings Predictions and Underdog Exchange. Kalshi contributed $333 million, placing it above half of the combined turnover.

The supplied summary does not break out trading volume for the other six platforms. It therefore offers a measure of aggregate activity but not a complete view of how that activity was distributed.

Open interest has a narrower scope

DeFi Rate also reported $664 million in open interest across Kalshi and Polymarket US. That figure covers only those two platforms, rather than the seven included in the trading-volume total.

The distinction matters when interpreting the figures: daily turnover measures trading activity, while open interest reflects outstanding positions. The two totals should not be treated as interchangeable measures of market size.

What it means for prediction markets

  • The 36 percent rise indicates higher sports-market turnover, but the supplied material does not identify which events or contracts drove it.
  • Kalshi’s $333 million contribution shows that it accounted for most of the reported trading across the seven platforms.
  • The $664 million open-interest figure provides a separate gauge of outstanding exposure on Kalshi and Polymarket US; it does not establish open interest across all seven venues.
KalshiPolymarketDraftKingsInfiniti MarketsInfiniti Signals

Sources & attribution

Published
  1. Source
    DeFi Ratedefirate.com
    Publisher
    https://defirate.com
    Source URL
    The feed did not publish this story's article address.

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