Kalshi recorded $4.15 billion in notional trading volume on Election Day, Nov. 3, 2026, according to its daily market data. That was its busiest weekday in the data but below its $5.3 billion record on Oct. 24. The reports use U.S. Eastern days, and notional volume counts contracts at their full $1 payout, not the amount traders put at risk.
Parlay-style “combo” contracts made up $2.43 billion, or 58.6%, of Election Day volume, down from 75.5% on Oct. 24. Kalshi’s five largest election series traded about $440 million, led by the Texas Senate race at $108.1 million.
