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Election Day trading reaches $5.39 billion across 10 prediction exchanges

Volume Race compiled the total from each exchange's own daily reports. Over the last 30 days Kalshi handled 75.1 percent of all volume, and combination contracts were 60.4 percent of volume at exchanges that report them.

Prediction markets recorded $5.39 billion in trading across 10 exchanges on Election Day, November 3, according to Volume Race. The figure aggregates daily volume reported by the exchanges themselves.

Exchange reports show scale and concentration

Volume Race compiled the total using each exchange’s own daily reports. Its tally measures activity across the 10 exchanges, rather than volume on a single platform.

Over the last 30 days, Kalshi accounted for 75.1 percent of all volume, according to Volume Race. That concentration is a separate measure from the Election Day total: it describes the distribution of trading over the longer period.

Combination contracts account for a majority

Combination contracts represented 60.4 percent of volume at exchanges that report them, according to Volume Race. That figure applies to the reporting exchanges, not necessarily to every venue included in the broader tally.

What it means for prediction markets

  • Scale and market share cover different periods: The $5.39 billion figure captures Election Day activity, while Kalshi’s 75.1 percent share covers the last 30 days.
  • Trading was concentrated: Kalshi handled a substantial majority of volume over that 30-day period, making venue-level activity important when interpreting aggregate figures.
  • Contract coverage matters: The 60.4 percent combination-contract share describes only exchanges that report that category; it should not automatically be treated as a market-wide proportion.
KalshiElectionsInfiniti MarketsInfiniti Signals

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