Liquidation is triggered when the Mark Price hits the Liquidation Price. The minimum maintenance margin rate for perpetual contracts on Zoomex is 0.5% for BTC and ETH, 1.0% for SOL and XRP. Margin requirements will increase or decrease accordingly as risk limit changes.
Liquidation price is calculated based on the trader's selected leverage, maintenance margin and entry price.
Calculation of liquidation price
Isolated Margin Mode：
Buy/Long：
Sell/Short：
Cross Margin Mode:
Buy/Long:
Liquidation Price (Long) = Contract Quantity ÷ [Position Value + (Initial Margin - Maintenance Margin) + Available Balance]
Sell/Short:
Liquidation Price (Short) = Contract Quantity ÷ [Position Value - (Initial Margin - Maintenance Margin) + Available Balance]
Notes:
— Position Value = Contract Quantity ÷ Average Entry Price
— Initial Margin = Position Value ÷ Leverage
— Maintenance Margin = (Position Value × MMR) - Maintenance Margin Deduction
— The MMR is based on the Risk Limit tier.
— Minor differences from the actual liquidation price may arise due to the fees to close the position(s).
Bankruptcy price - Isolated Margin mode
Inverse contracts use the underlying coin (e.g., BTC) as collateral. Since the collateral's value fluctuates with the market, the math is non-linear and uses Leverage directly.
For Buy/Long:
Bankruptcy Price = Entry Price x [Leverage ÷ (leverage + 1)]
For Sell/Short:
Bankruptcy Price = Entry Price x [Leverage ÷ (leverage − 1)]
Example:
Trader B holds an ETHUSD short position with an entry price at 2,200 USD, leverage is 30x.
Bankruptcy Price = 2,200 × [30 ÷ (30 − 1)] = 2,275.86 USD
Bankruptcy - Cross Margin Mode
For Buy/Long:
Bankruptcy Price = (1 + Taker Fee Rate) ÷ [ (1 ÷ Entry Price) + (Approximate Available Margin ÷ Position Size ) ]
For Sell/Short:
Bankruptcy Price = (1 − Taker Fee Rate) ÷ [ (1 ÷ Entry Price) − (Approximate Available Margin ÷ Position Size ) ]
Please note that the above formulas do not reflect the full account-level risk calculation. The final result depends on your actual account state at the moment of liquidation. As a result, any displayed price should be considered for reference only.