Kalshi reported $5.33 billion in notional trading volume on Nov. 7, 2026, and $5.36 billion on Nov. 8, topping its previous daily record of $5.30 billion. Notional volume counts each contract at its full $1 payout, not the amount traders put at risk. Combo contracts, which bundle several outcomes, accounted for 75.6% of the first day’s volume and 74.6% of the second day’s.
In a Nov. 6 court filing, the American Gaming Association argued that Kalshi’s parlays are sports bets and said they make up two-thirds of its volume. The group also estimated that users under 21 had wagered $9.5 billion on Kalshi as of Nov. 2; Kalshi accepts traders from age 18, while New York bars sports wagering by anyone under 21.
