Margin Call Logic

Margin call logic is the set of rules that determines when a user's collateral is insufficient to cover their borrowed assets. This logic is triggered when the collateral ratio drops below a maintenance threshold, signaling the need for liquidation.

The design of this logic is critical for the stability of lending protocols, as it must balance the protection of the protocol from bad debt with the desire to avoid unnecessary liquidations for the user. Modern protocols often incorporate dynamic margin call logic that adjusts to market volatility, ensuring that users are given adequate time to react before their positions are closed.

This logic must be executed by the liquidation engine in real time to be effective. If the logic is too slow or poorly calibrated, it can lead to massive liquidations that cause price cascades, harming the entire ecosystem.

It is a core component of financial risk management in decentralized finance. Proper calibration is essential for system health.