When the fair mark price of a position nears its estimated liquidation price, the system will automatically transfer available funds from your account to the position’s margin. This feature is only available for “Isolated Margin” mode positions.
When opening a position in “Isolated Margin” mode, you have the option to enable the “Auto Margin Top-Up” feature. Once the “Auto Margin Top-Up” feature is enabled, the system will transfer available funds from your futures account to the position’s margin to restore the effective margin ratio to the required level for your selected leverage.
If your available funds in the futures account are insufficient, the system will use all remaining available funds to top up the margin. If the position still meets liquidation conditions after the top-up, it may be partially liquidated or fully liquidated.
This feature resets automatically once the position is fully closed. You’ll need to manually re-enable it for each new position.
Effective margin ratio formula
Effective margin ratio = (position margin + unrealized PnL) ÷ position value
Important note:
- The “Auto Margin Top-Up” feature helps lower the risk of liquidation, but under extreme market conditions, it may result in the complete loss of available funds in your futures account.
- The feature must be re-enabled manually each time you open a new position as it is reset after a position is closed.