Kalshi’s Parlay Maker Fee Has Already Brought in $26 Million in Four Weeks

A Fee connected Makers, a Cost for Takers

According to a study by Ingame’s Daniel O’Boyle, Kalshi’s parlay shaper fees present routinely apical $1 cardinal a day connected weekends. On Sept. 12, the prediction marketplace collected $1.7 cardinal from this gross source, which is much than its mean regular interest gross from takers and makers combined successful August 2025—a small much than a twelvemonth ago. Parlays are present the bulk of Kalshi’s maker-fee revenue, with full shaper fees passing $2.5 cardinal connected that mid-September day. The figures don’t relationship for the rebates and liquidity rewards Kalshi pays to marketplace makers that conscionable its requirements.

When the parlay fees archetypal surfaced successful August, the reports traced to a trader’s station connected X alternatively than to Kalshi itself, and the exchange’s interest docket listed nary combo bid and nary scheduled changes. Kalshi’s nationalist API present records a caller interest type, applied to 3 combo bid betwixt 09:01 and 09:05 UTC connected Aug. 20.

The online fee schedule has since added a enactment for combos, excluding uncorrelated NFL parlays, with shaper fees astatine 50% of the taker fee. The downloadable PDF version is inactive dated July 7 and makes nary notation of combos. The lone maker-fee look it sets retired charges a 4th of the taker rate, fractional what combo makers present pay.

The other gross has pushed Kalshi’s interest instrumentality backmost toward its World Cup peak. In the 7 days ending Sept. 15, the speech averaged $12.3 cardinal a time successful fees, against $12.9 cardinal successful the week ending July 7. Without parlay shaper fees, the caller fig would person been conscionable nether $11 million.

How Kalshi Parlays Work

Kalshi prices parlays done a request-for-quote system, wherever traders inquire for a terms connected a combination, and market makers respond wrong seconds with an offer. Takers mostly wage much than the existent probability, which is what made fee-free marketplace making connected parlays lucrative. The cited investigation suggests the outgo is being divided betwixt marketplace makers and parlay bettors.

On uncorrelated non-NFL combos, wherever a just terms tin beryllium calculated from the idiosyncratic legs, the mean regular markup that makers charged ran astatine astir 0.55% successful the 2 weeks earlier the interest and astir 3.1% from Aug. 20 done Sept. 16, according to the information Ingame published with its report. Makers person besides made $24 cardinal successful nett aft fees since the change, little than successful immoderate of the 3 preceding four-week periods.

None of this has slowed demand. Kalshi archetypal cleared $1 cardinal successful regular parlay measurement connected Aug. 29, past broke that grounds 3 much times, reaching $1.49 cardinal connected Sept. 13, the first NFL Sunday of the season. That fig counts some sides of each trade, and makers enactment up astir of the wealth connected long-odds parlays. On the taker broadside alone, a grounds $68.4 cardinal was staked connected parlays that day, a small implicit 11% of Kalshi’s full taker volume. Since parlays launched successful September 2025, takers person mislaid much than $380 cardinal earlier fees and $620 cardinal aft them.

Uncorrelated NFL parlays stay exempt from shaper fees, which keeps Kalshi’s highest-profile merchandise cheapest for marketplace makers during shot season, erstwhile it competes astir straight with the sportsbooks. It besides competes with Polymarket US, which opened parlays to each app users the aforesaid time Kalshi’s interest took effect, according to Ingame. The Polymarket US interest schedule, revised connected Sept. 17, pays marketplace makers a rebate connected trades exchange-wide alternatively than charging them.