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AllXBTUSDT19400.0-1.63%XBTUSD19296.5-2.19%XBTEUR19655.0-2.96%XBTUSDTH2321165.0-2.23%XBTUSDTZ2220200.0-1.88%XBTZ2220276.0-2.80%XBTV2219590.5-2.20%XBTH2321011.5-3.87%XBTM2322140.5-2.59%ADAUSDT0.4297-2.25%ADAUSD0.4290-1.31%ADAZ220.00002338+1.17%APEUSDT5.242-4.81%APEUSD5.267-4.22%AVAXUSDT17.032-2.29%AVAXUSD17.044-2.54%AXSUSD12.54-1.88%BCHUSDT117.20-5.45%BCHUSD116.95-5.53%BNBUSDT283.38-1.51%BNBUSD279.75-2.87%USDTBRL5.4204+0.03%USDBRL5.4203+0.05%USDTCHF0.98787+0.16%USDCHF0.98631+0.14%EURCHF0.96704+0.31%USDTCNH7.1362+0.15%USDCNH7.1462+0.15%DOGEUSDT0.06053-0.23%DOGEUSD0.06058-0.30%DOTUSDT6.249-3.18%DOTUSD6.256-2.84%EOSUSDT1.2096+0.16%EOSUSD1.2314+1.52%ETHXBT0.06731-0.21%ETHUSDT1310.10-3.50%ETHUSD1307.30-3.51%ETHUSD_ETH1589.35-0.01%ETHUSDTZ221362.65-3.76%ETHUSDZ221375.00-3.12%ETHZ220.07121-1.11%ETHUSDZ22_ETH--.-+0.00%ETHPOWZ220.10+0.00%EURUSDT0.97926+0.12%EURTRY18.1249+0.00%EURUSD0.97933+0.24%FILUSDT5.60-2.27%FTMUSDT0.2235-2.10%GALUSDT2.5592-2.34%GALUSD2.5607-1.78%GMTUSDT0.6434+0.08%GMTUSD0.6422-0.11%USDINR81.593+0.29%USDTINR81.726+0.30%KLAYUSDT0.19358-1.32%KLAYUSD0.19352-1.34%LINKUSDT7.340-4.54%LINKUSD7.433-3.62%LTCUSDT53.00-2.89%LTCUSD53.25-2.38%LUNAUSDT2.3964-3.99%LUNAUSD2.4271-3.04%MANAUSDT0.6964-1.71%MATICUSDT0.7650-2.27%USDTMXN20.167+0.11%USDMXN20.133+0.12%NEARUSDT3.540-1.75%NEARUSD3.540-1.88%NZDUSDT0.56068-0.41%NZDUSD0.56077-0.42%OPUSDT0.8954-1.31%OPUSD0.8988-0.95%SANDUSDT0.8345-2.21%USDTSEK11.1142-0.20%USDSEK11.0970-0.45%SHIBUSDT0.000011121-0.97%USDTTRY18.4905-0.11%USDTRY18.5180+0.04%SOLUSDT32.71-5.95%SOLUSD32.74-5.65%TRXUSDT0.06041-0.95%TRXUSD0.06069-1.80%XRPUSDT0.4838+1.45%XRPUSD0.4800+1.33%XRPZ220.00002611+4.90%USDTZAR18.0798-0.07%USDZAR18.0784+0.06%.BXBT19303.25-2.29%.BETH1311.73-3.29%.BVOL24H2.26-39.73%Funding: 02:50:03 @ 0.0100%Time: 5:09:56 PM UTC
OPUSDT: Contract Specification
OPUSDT is in the OP series.
The quote currency is USDT (Tether).


OPUSDT is a OP/USDT perpetual contract priced on the .BOPT Index. Each contract has a value equal to its price in Tether.

Funding is paid and received every 8 hours. The next payout event is at 8:00 PM UTC.

OPUSDT uses a Premium Index to calculate funding rates. The underlying interest rates are quoted in the .OPBON8H Index and .USDTBON8H Index, and the premium rate is quoted in the .OPUSDTPI8H Index. These are used to calculate the final funding rate.

Today, longs will pay 0.0100%, and shorts will receive 0.0100% at 8:00 PM UTC. BitMEX does not charge fees on funding payments.

Expiry: Perpetual, subject to Early Settlement.Maximum Initial Leverage: 50x
Maximum Maintenance Leverage: 100x

View the BitMEX Perpetual Contracts Guide

Funding Calculation

More information about the funding rate is available in the Perpetuals Guide.

Interest BaseInterest QuotePremium

I = Interest Rate, B = Interest Base, Q = Interest Quote, T = Funding Times Per Day
P = Premium Rate, F = Funding Rate
The Funding Rate is the rate exchanged between users.
The Premium Rate is used to calculate it, adjusted by the Interest Rate by up to 0.05%.


I = (Q - B) / T
F = P + Clamp(I - P, -0.05%, 0.05%)


I = 0.0100%
I = (0.06% - 0.03%) / 3
F = 0.0100%
F = 0.0100% + Clamp(0.0100% - 0.0100%, -0.05%, 0.05%)

Full Contract Details

Ticker RootOPUSDT
Expiry DatePerpetual, subject to Early Settlement
Initial Margin2.00% + Entry Taker Fee + Exit Taker Fee
Maint. Margin1.00% + Exit Taker Fee + Funding Rate
Interest Base Symbol.OPBON8H
Interest Quote Symbol.USDTBON8H
Funding Premium Symbol.OPUSDTPI8H
Funding Rate0.0100%
Funding Intervalevery 8 hours
Next FundingOct 1, 2022, 8:00:00 PM
Predicted Rate0.0100%
Mark Price0.8949
Auto-Deleveraging EnabledYes: This contract is highly speculative and manages loss through auto-deleveraging.
Mark MethodFairPrice
Fair Basis0
Fair Basis Rate10%
Fair Basis CalculationThe fair basis on this instrument is determined by an annualized calculation of the funding rate.
Risk Limit1,000,000 USDT
Risk Step1,000,000 USDT
Open Interest185,000
24H Turnover163.43 USDT
Total Volume10,224,000
TypeSettled in USDT, quoted in USDT
Contract Size0.001 OP (Currently 0.000895 USDT per contract)
SettlementThis contract is perpetual and does not settle. Subject to Early Settlement.
CommissionSee the Fees Reference for more details.
Minimum Price Increment0.0001 USDT
Minimum Trade Amount1 OP
Max Price10,000
Max Order Quantity1,000,000,000
Lot Size1,000