Below is the liquidation price formula for USDT-Ⓜ futures contract (LP1) under cross margin mode:
where
| WB | Wallet Balance |
| TMM1 | Maintenance Margin of all other contracts, excluding Contract 1 If it is an isolated margin mode, then TMM=0，UPNL=0 |
| UPNL1 | Unrealized PNL of all other contracts, excluding Contract 1 If it is an isolated margin mode, then UPNL=0 |
| cumB | Maintenance Amount of BOTH position (one-way mode) |
| cumL | Maintenance amount of LONG position (hedge mode) |
| cumS | Maintenance amount of SHORT position (hedge mode) |
| Side1BOTH | Direction of BOTH position, 1 as long position, -1 as short position |
| Position1BOTH | Absolute value of BOTH position size (one-way mode) |
| EP1BOTH | Entry Price of BOTH position (one-way mode) |
| Position1LONG | Absolute value of LONG position size (hedge mode) |
| EP1LONG | Entry Price of LONG position (hedge mode) |
| Position1SHORT | Absolute value of SHORT position size (hedge mode) |
| EP1SHORT | Entry Price of SHORT position (hedge mode) |
| MMR B | Maintenance margin rate of BOTH position (one-way mode) |
| MMR L | Maintenance margin rate of LONG position (hedge mode) |
| MMR S | Maintenance margin rate of SHORT position (hedge mode) |
Notes:
- In Cross margin mode， WB is crossWalletBalance
- In Isolated margin mode, WB is isolatedWalletBalance of the isolated position, TMM=0, UPNL=0, substitute the position quantity, MMR, cum into the formula to calculate.
- Under cross margin, same ticker/symbol, both long and short position share the same liquidation price except isolated mode. Under isolated mode, each isolated position will have different liquidation prices depending on the margin allocated to the positions.
- If the liquidation price is less than 0, the UI display would be “--”
Maintenance Margin Rate
You can find the “Maintenance Margin Rate” from the table below with the position value in USDT.
For example, if the position of USDT-margined BTCUSDT Contract is 264,000 USDT, then the maintenance margin rate would be 1% (or 0.01).
Note:
If your position (calculated at the liquidation price) and the current position (calculated at the opening price) are of different levels, then you must substitute (i.e. to calculate at the liquidation price) the maintenance margin rate and the maintenance margin amount of the position level, to recalculate the liquidation price.
Maintenance Amount
You can find the “Maintenance Amount” from the table below with the position value in USDT. For example, if the position of USDT-margined BTC/USDT Contract is 500,000 USDT, then the maintenance amount would be 1,300 USDT.
Maintenance Amount formula
= [ Floor of Position Bracket on Level n * difference between Maintenance Margin Rate on Level n and Maintenance Margin Rate on Level n-1) ] + Maintenance Amount on Level n-1
For example, the Maintenance Amount on Level 3
= 250,000 * (1% - 0.5%) + 50 USDT
= 1,300 USDT
125x USDT-Margined Perpetual Contract (BTCUSDT) | |||
| Level | Position Bracket (Notional Value in USDT) | Maintenance Margin Rate | Maintenance Amount (USDT) |
| 1 | First 50,000 | 0.4% | 0 |
| 2 | 50,000 - 250,000 | 0.5% | 50 |
| 3 | 250,000 - 1,000,000 | 1.0% | 1,300 |
| 4 | 1,000,000 - 5,000,000 | 2.5% | 16,300 |
| 5 | 5,000,000 - 20,000,000 | 5.0% | 141,300 |
| 6 | 20,000,000 - 50,000,000 | 10.0% | 1,141,300 |
| 7 | 50,000,000 - 100,000,000 | 12.5% | 2,391,300 |
| 8 | 100,000,000 - 200,000,000 | 15.0% | 4,891,300 |
| 9 | Greater than 200,000,000 | 25.0% | 24,891,300 |
100x USDT-Margined Perpetual Contract (ETHUSDT) | |||
| Level | Position Bracket (Notional Value in USDT) | Maintenance Margin Rate | Maintenance Amount (USDT) |
| 1 | First 10,000 | 0.5% | 0 |
| 2 | 10,000 - 100,000 | 0.65% | 15 |
| 3 | 100,000 - 500,000 | 1.0% | 365 |
| 4 | 500,000 - 1,000,000 | 2.0% | 5,365 |
| 5 | 1,000,000 - 2,000,000 | 5.0% | 35,365 |
| 6 | 2,000,000 - 5,000,000 | 10.0% | 135,365 |
| 7 | 5,000,000 - 10,000,000 | 12.5% | 260,365 |
| 8 | 10,000,000 - 20,000,000 | 15.0% | 510,365 |
| 9 | Greater than 20,000,000 | 25.0% | 2,510,365 |
75x USDT-Margined Perpetual Contract | |||
| Level | Position Bracket (Notional Value in USDT) | Maintenance Margin Rate | Maintenance Amount (USDT) |
| 1 | First 10,000 | 0.65% | 0 |
| 2 | 10,000 - 50,000 | 1.00% | 35 |
| 3 | 50,000 - 250,000 | 2.00% | 535 |
| 4 | 250,000 - 1,000,000 | 5.00% | 8,035 |
| 5 | 1,000,000 - 2,000,000 | 10.00% | 58,035 |
| 6 | 2,000,000 - 5,000,000 | 12.50% | 108,035 |
| 7 | 5,000,000 - 10,000,000 | 15.00% | 233,035 |
| 8 | Greater 10,000,000 | 25.00% | 1,233,035 |
75x USDT-Margined Perpetual Contract:
* ADAUSDT, BNBUSDT, DOTUSDT, EOSUSDT, ETCUSDT, LINKUSDT, LTCUSDT, TRXUSDT, XLMUSDT, XMRUSDT, XRPUSDT, XTZUSDT, BCHUSDT
50x USDT-Margined Perpetual Contract | |||
| Level | Position Bracket (Notional Value in USDT) | Maintenance Margin Rate | Maintenance Amount (USDT) |
| 1 | First 5,000 | 1.0% | 0 |
| 2 | 5,000 - 25,000 | 2.5% | 75 |
| 3 | 25,000 - 100,000 | 5.0% | 700 |
| 4 | 100,000 - 250,000 | 10.0% | 5,700 |
| 5 | 250,000 - 1,000,000 | 12.5% | 11,950 |
| 6 | Greater 1,000,000 | 50.0% | 386,950 |
Calculate liquidation price in One-way & Cross margin mode
Example:
(WB) Wallet Balance = 1,535,443.01
| Positions | Size | Entry Price | Mark Price | Liquidation Price | PNL |
| ETHUSDT Perpetual | 3,683.979 ETH | 1,456.84 | 1,335.18 | 1,153.25 | -447,482.10 |
| BTCUSDT Perpetual | 109.488 BTC | 32,481.98 | 31,967.27 | 26,316.86 | -56,249.35 |
You may find your maintenance margin rates and amounts through the tables above, as highlighted in the following image.
For ETHUSDT:
Taking into account that Maintenance margin=Notional value*Maintenance Margin rate-cum
Notional Value = Price * Size
Maintenance Margin of ETHUSDT = 356,512.508 (4918775.081 * 10.00% - 135365).
(WB) Wallet Balance = 1,535,443.01
(TMM1) Maintenance Margin of all other contracts, excluding Contract 1 = 71200.81144
(UPNL1) Unrealized PNL of all other contracts, excluding Contract 1 = -56,249.35
(cumB) Maintenance Amount of BOTH position (one-way mode) = 135,365.00
(cumL) Maintenance amount of LONG position (hedge mode) = 0
(cumS) Maintenance amount of SHORT position (hedge mode) = 0
(Side1BOTH) Direction of BOTH position, 1 as long position, -1 as short position = 1
(Position1BOTH) Absolute value of BOTH position size (one-way mode) = 3,683.79
(EP1BOTH) Entry Price of BOTH position (one-way mode) =1,456.84
(Position1LONG) Absolute value of LONG position size (hedge mode) = 0
(EP1LONG) Entry Price of LONG position (hedge mode) = 0
(Position1SHORT) Absolute value of SHORT position size (hedge mode) = 0
(EP1SHORT) Entry Price of SHORT position (hedge mode) = 0
(MMB) Maintenance margin rate of BOTH position (one-way mode) = 10%
(MML) Maintenance margin rate of LONG position (hedge mode) = 0
(MMS) Maintenance margin rate of SHORT position (hedge mode)= 0
For BTCUSDT:
Taking into account that Maintenance margin=Notional value*Maintenance Margin rate-cum
Notional Value = Price * Size
Maintenance Margin of BTCUSDT = 71200.81144 (3500032.458 * 2.50%% - 16300).
(WB) Wallet Balance = 1,535,443.01
(TMM1) Maintenance Margin of all other contracts, excluding Contract 1 = 356,512.508
(UPNL1) Unrealized PNL of all other contracts, excluding Contract 1 = -447,482.100
(cumB) Maintenance Amount of BOTH position (one-way mode) = 16,300.000
(cumL) Maintenance amount of LONG position (hedge mode) = 0.
(cumS) Maintenance amount of SHORT position (hedge mode) = 0
(Side1BOTH) Direction of BOTH position, 1 as long position, -1 as short position = 1
(Position1BOTH) Absolute value of BOTH position size (one-way mode) = 109.488
(EP1BOTH) Entry Price of BOTH position (one-way mode) =32,481.980
(Position1LONG) Absolute value of LONG position size (hedge mode) = 0
(EP1LONG) Entry Price of LONG position (hedge mode) = 0
(Position1SHORT) Absolute value of SHORT position size (hedge mode) = 0
(EP1SHORT) Entry Price of SHORT position (hedge mode) = 0
(MMB) Maintenance margin rate of BOTH position (one-way mode) = 2.50%
(MML) Maintenance margin rate of LONG position (hedge mode) = 0
(MMS) Maintenance margin rate of SHORT position (hedge mode)= 0
Liquidation Price Formula:
With this information and by inputting the appropriate information in the formula we can see that the Liquidation Price for the ETHUSDT contract = 1,153.225 and for BTCUSDT = 26,310.23
Please note that there may be a slight variation due to decimals.