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Kalshi dominates 30-day activity as prediction markets log $4.81 billion

Volume Race compiles the daily total from the exchanges' own reports and puts trading over the last 30 days at 135.35 billion dollars, with Kalshi handling about 75 percent of it. Combinations and parlays were 60.7 percent of volume at the exchanges that report them.

Prediction markets recorded $4.81 billion in trading across 10 exchanges on Thursday, November 5, according to Volume Race. The figures were published on Nov 6, 2026, at 1:45 PM ET.

Volume Race aggregates figures reported by the exchanges themselves. Its daily total therefore reflects those exchange disclosures rather than a separate measurement of trading activity.

Kalshi leads the 30-day total

Trading over the last 30 days reached $135.35 billion, according to Volume Race. Kalshi accounted for about 75 percent of that volume, placing most of the reported activity on a single exchange.

Combinations and parlays represented 60.7 percent of volume at exchanges that disclose those categories. That figure applies specifically to the reporting exchanges, not necessarily to all 10 venues included in the daily total.

What it means for prediction markets

  • Activity is concentrated: Kalshi’s roughly 75 percent share makes it the dominant contributor to the reported 30-day volume.
  • Contract mix matters: Combinations and parlays account for a majority of volume where those categories are disclosed; the aggregate should not be read as a measure of standalone contracts alone.
  • The figures have different scopes: The $4.81 billion daily total covers 10 exchanges, while the 60.7 percent category share covers only exchanges reporting combinations and parlays.
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