Exchange revenue nowcast
Source: DKeX (Railbird Exchange) public daily reports · data through Sun, Sep 6, 2026 · each day's reports publish the next day around noon ET; this site refreshes at about 1:30 PM ET
Every number here is an estimate: public prints × the exchange's published fee schedule. Single-leg contracts; combos are shown as a band and never folded in.
Fee = taker tier on the printed side ($0.0050 @ 1c, $0.0085 @ 2c, $0.0100 @ 3–98c, $0.0050 @ 99c) + $0.0025 maker, per contract. The band is the unknown taker side, non-degenerate only at 2c/98c. Rounding up to $0.01 per execution adds ~0.21%.
Daily estimated fee revenue
Monthly
- 12026-0614,097 contracts$176
- 22026-0712,696,074 contracts$158,343
- 32026-0866,018,817 contracts$823,414
- 42026-09106,250,597 contracts$1,326,083
By league · last 30 days
- 1MLB$1,138,144
- 2CFB$734,787
- 3NPB$66,272
- 4Other$62,102
- 5KBO$46,320
- 6WNBA$35,019
- 7MLS$5,929
- 8NFL$1,790
Combos · multi-leg contracts, listed from 2026-08-26
560,341 combo prints, 112,039,223 contracts, $14,584,822 notional. The fee schedule is silent on whether a combo is one execution or n_legs, so this is a band. HIGH is understated for 20,045 prints on combos that have not settled (leg count unknown; counted as one). Fees are flat per contract within a price band, so cheap combos pay a far larger share of their own premium. Combo revenue is not included in any figure above this section.
External benchmark check
A July 2026 press report cited $11,300,000,000 of weekly volume. For the week of Jun 29, 2026 the exchange's own files show 805,150 contracts and $388,580 of premium notional (max-payout notional $805,150) — three to four orders of magnitude below the reported figure. Lifetime single-leg premium notional across the entire archive is $84,984,916. Either the report used a measure not derivable from public data, or the figure is wrong. Shown for calibration, not endorsement.
Read before trusting any chart on this page
- Upper bound on collected fees: maker/taker incentive and rebate programs are not public.
- Rounding: the round-up-to-$0.01 rule applies per execution; prints may aggregate fills, so the unrounded figure is the floor.
- Exchange fees only: excludes FCM/brokerage economics and DKNG's internal market-making P&L.
- Affiliate flow: fees paid by DKNG's own market-making affiliate are not third-party revenue in the same sense.