Fees & Economics
What one side pays to trade, including a broker charge where public data can support it, how that cost changes with price, and which realized fee series can be measured from public venue files.
Fees per day, across exchanges
Modeled one-side customer cost or exchange revenue, in dollars, day by day. Use the measure toggle to keep those two questions separate.
Every venue here is read from one file on one lineage. For DKeX, "fee cost" is DraftKings Predictions' all-in fee, which includes the DKeX taker charge; "exchange revenue" is DKeX's filed taker-plus-maker charge. Before that launch, the public DKeX trade records include exchange fees only. OG/Crypto.com remains the standard direct-member exchange benchmark: Crypto.com's app changed to a 1–1.75¢ taker range on June 30, but the daily bulletin has neither prices nor member roles needed to reconstruct a retail point. Two venues are absent rather than zero, and a third is mostly absent. Novig publishes its straight-book fee as a bounded range rather than a point estimate, so it has no single defensible daily number to rank against the others. ProphetX has no single per-contract rate, so it is not drawn. Its schedule charges NHL straight trades a maker/taker fee, charges other straight markets 2% of the trader's net gains in each market, and charges parlays a taker-only fee on the stake, so no daily per-contract fee can be derived from the trade records. Rothera's fee estimate only starts
Cumulative fees to date, across exchanges
The same series, accumulated over the window you pick below. Kalshi is roughly an order of magnitude above the field, so untick it — or switch to a log scale — to read the competitors against each other.
Published fee schedules, across exchanges
Published fee per contract for one side of a $1 binary at each price, before order-level rounding. The DraftKings-on-DKeX line is one customer's all-in cost on every trade: the latest disclosed ladder, which includes DKeX's exchange fee.
DraftKings Predictions is an introducing broker, not an FCM. Its DKeX customer line is the broker's latest disclosed price ladder which includes DKeX's exchange fee; DKeX exchange revenue is the gray exchange-only line. The September text printed 8.80¢ at 97–98¢, a tenfold break in an otherwise descending tail that would make a winning 98¢ contract cost more than its $1 payout; it was read as a missing zero (0.88¢). The latest text prints 0.45¢ at 97–99¢, and the line follows that. None of DraftKings' ladders has a published effective date, so the windows the book uses are estimates (see What it charges). Crypto.com's app publishes only a 1–1.75¢ range, so both bounds are drawn rather than an invented curve; the separate 2¢ line is OG/Crypto.com's standard direct-member exchange fee. Kalshi and Underdog have the same one-side curve, but Underdog charges both sides. ProphetX is absent because it has no single per-contract rate. Its schedules (dated 5 Nov and 12 Oct 2026) charge NHL straight trades 0.035 × P × (1 − P) per contract to the taker and 0.01 × P × (1 − P) to the maker, with both sides charged; other straight markets pay 2% of net gains per market; parlays pay a taker-only fee of 0.021 × (1 − p) / (0.25 + p) + 0.006 of the stake, at least one cent an order. Novig pre-game straight trades are free and are stated here rather than drawn as a zero line.
Realized fee per $1 traded, across exchanges
Modeled one-side fees divided by reported contracts, with OG/Crypto.com restated per $1 of contract because it redenominated twice. DKeX is DraftKings' all-in fee on every trade; OG/Crypto.com is the direct-member exchange benchmark, not the app's newer retail range. Venues without a defensible daily numerator are absent, not zero.