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Kalshi dominates monthly activity as daily prediction trading reaches $4.81 billion

Volume Race compiles the daily total from each exchange's own published reports and puts 30-day volume at 135.35 billion dollars, with Kalshi handling 75.2 percent. Combo and parlay contracts made up 60.7 percent of volume at the exchanges that report them.

Prediction markets recorded $4.81 billion in trading volume across 10 exchanges on November 5, according to Volume Race. The figures were reported on Nov 7, 2026, at 1:45 PM ET.

Volume Race calculates its daily aggregate using the trading reports published by each exchange. The total therefore brings together exchange-disclosed figures rather than a separately measured tally.

Monthly volume concentrated at Kalshi

Volume Race put trading volume over 30 days at $135.35 billion. Kalshi accounted for 75.2 percent of that activity, placing the majority of reported monthly turnover on one exchange.

The daily and monthly figures describe different windows: $4.81 billion covers November 5, while Kalshi’s share applies to the 30-day total.

Combos and parlays form a substantial share

Combo and parlay contracts represented 60.7 percent of volume at exchanges that disclose those categories, according to Volume Race.

That percentage applies only to the reporting exchanges, not necessarily all 10 venues included in the daily aggregate. The supplied summary does not identify which exchanges disclose combo and parlay activity.

What it means for prediction markets

  • Concentration matters: Kalshi’s 75.2 percent share makes its activity central to interpreting the reported 30-day market total.
  • Contract mix deserves attention: The 60.7 percent combo and parlay share shows that these products account for most volume at exchanges reporting that breakdown.
  • Coverage limits comparisons: The aggregate relies on exchanges’ own published reports, while the contract-type breakdown covers only venues that disclose it.
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