Position Restriction
Expand the formula:
[1] Except for liquidation.
Last updated
Expand the formula:
[1] Except for liquidation.
Last updated
The risk ratio is key value to risk control.
The system does not allow position changes that may lead to high risk ratio, i.e., the risk ratio after any position changes shall be lower than the Risk Threshold , otherwise the position change order cannot be executed[1].
Assuming that the risk ratio at given moment is and the position changed is , the risk ratio after the position change is calculated as follows:
is positive if the position changed is long, or negative if short.
Then the relationship between and can be described as follows:
Thus, the formula for restriction on position changed :
If the position changed failed to satisfy the formula above, the contemplated position change cannot be executed.
Position restriction ensures the risk ratio shall always be lower than a given risk threshold.
Risk threshold is a changeable constant and can be adjusted via DAO community voting.