Yes. Kalshi offers parlays and calls them combos. They surfaced without an announcement before a Monday Night Football doubleheader on September 29, 2025, as same-game parlays only, and have since grown into one of the exchange's biggest products: combos with 30 or more legs are possible, and in 2026 they've accounted for just over 30% of Kalshi's trading volume. Pricing works differently from a sportsbook, which is the interesting part.
How a combo is priced
A sportsbook prices a parlay by multiplying its own odds for each leg, margin included, and then usually shaving a bit more. On Kalshi, each leg is a market with a live price that already reflects what traders think. When you build a combo, Kalshi sends it out as a request for quote (RFQ) to market makers, who respond with a price for the whole package. You buy that combined contract; it pays $1 if every leg hits and $0 otherwise.
Because there is no house margin baked into each leg, combo prices on Kalshi are frequently better than the equivalent sportsbook parlay. The widely shared example from launch week: a three-leg NFL same-game combo paid +1011 on Kalshi versus +750 on DraftKings. It won't be true of every combination, and the market maker's quote has its own spread, so compare.
Fees on combos
Combos sit in their own fee series. As of the July 2026 schedule, the combo series (KXMVE) charges takers the standard rate and makers 3.5% × price × (1 − price), half the taker rate, instead of letting makers trade free as on most markets. For you as the buyer that means the normal taker fee on the combo's price. Kalshi also began charging market makers on combos from August 20, 2026, which may tighten quotes slightly over time. Formula and table on the fees page.
What you can combine
- Same-game combos: the original format: a team to win, a player to score, a total, all in one game.
- Cross-market combos: legs from different games, and in principle different categories, in one contract. Up to 30+ legs.
- Some combinations aren't offered where legs are too correlated or there's no market maker willing to quote.
How combos differ from a sportsbook parlay
| Kalshi combo | Sportsbook parlay | |
|---|---|---|
| Priced by | Market makers via RFQ | The book |
| Margin | Market maker spread + Kalshi fee | Built into every leg, then the parlay |
| Exit before the end | Possible, thin liquidity | Only if the book offers cash out |
| Price history | Per leg, not for the combo | None |
| Legal status | Federally regulated; contested by states | State licensed |
The volume number, and why it's misleading
Kalshi's reported combo volume ($3.5 billion in one August 2026 week, $47.9 billion year to date) counts contracts at full notional. A $1 combo that could pay $100 counts as $100 of volume, but only $1 changed hands if it loses. Big numbers, real product, but don't read them as money wagered.
Where combos are not available
Combos are sports contracts, so they go wherever Kalshi's sports boards go. In states where Kalshi has pulled sports markets after court orders (Nevada, Michigan and Washington at the time of writing), combos are off too. See legality by state.