Maintenance Margin Requirement
The maintenance margin requirement is a specific percentage or fixed value set by an exchange that defines the threshold for position liquidation. This requirement is distinct from the initial margin, which is the amount required to open a position.
The maintenance margin requirement is designed to ensure that the trader's equity remains sufficient to cover the potential losses of the position. If the market moves against the trader, the maintenance margin requirement acts as a trigger for the liquidation engine.
It is often set at a level that provides enough buffer for the exchange to close the position before the account equity turns negative. Different assets may have different maintenance margin requirements based on their volatility and liquidity.
This parameter is a fundamental tool for managing counterparty risk in leveraged derivatives markets. It ensures that the exchange can effectively manage its risk exposure in real-time.