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COIN-Ⓜ Futures Contracts
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How to Calculate Liquidation Price of COIN-M Futures Contracts
Binance
2021-02-05 07:59
Below is the liquidation price formula for COIN-M Futures contract
where
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. In 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 Leverage and Margin in Coin-Margined Futures Contracts
For example, if the position of the BTCUSD contract is 300 BTC, then the maintenance margin rate would be 12.5%
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. For example, if the position of BTCUSD Contract is 300BTC, then the maintenance amount would be 11.81 BTC.
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 BTCUSD Maintenance Amount on Level 5
= 50 BTC * (5% -2.5%) + 0.56 BTC
= 1.81 BTC
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Coin-Margined Futures Contracts and Contract Specifications