Glossary › Combo (multivariate market)
Checked September 25, 2026 · 4 sources · plain-English definition, not financial advice
Combo (multivariate market): A Kalshi market that bundles several outcomes into one position, priced by request for quote, paying $1 per contract only if every leg wins.
Combos let you trade a custom combination of outcomes, for example several game results, in a single position. Kalshi's help center says each combo is a unique market with its own order book and resolves to the product of the underlying positions, paying at most $1.00 per contract. In Kalshi's API they are multivariate events, created from multivariate event collections.
Prices come from a request for quote: you ask, and other participants may respond with a price. Fills are not guaranteed, quotes can change between viewing and execution, and a filled combo cannot be canceled or reversed by the user. Kalshi's July 12, 2026 fee filing for combo (KXMVE) trades says a trader who executes against a quote pays the equivalent of a taker fee and the accepted quoter the equivalent of a maker fee.
Worked example from Kalshi's help center: in a three-leg combo where two legs settle at $1.00 and one at $0.70 because a player did not play, the combo pays $0.70 x $1.00 x $1.00 = $0.70 per contract. If any leg settles at $0, the combo pays $0. A combo settles after its last leg is determined, typically within 1 to 12 hours.
Checked September 25, 2026. Kalshi changes fees, rules, funding options and limits; the market's rules, the order ticket and Kalshi's help center are the final word.
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