Collateral Asset Correlation Risk
Collateral asset correlation risk occurs when multiple assets used as collateral in a protocol move in lockstep during a market downturn. If a portfolio is composed of assets that are highly correlated, the diversification benefits disappear exactly when they are needed most.
In the crypto market, many assets are highly correlated with Bitcoin or Ethereum, meaning that a broad market crash will cause the value of all collateral to drop simultaneously. This can lead to a systemic failure where the protocol is unable to cover its liabilities because all its collateral pools have lost value at the same time.
Risk managers use correlation analysis to set collateral requirements and ensure that portfolios are not overly concentrated in assets that behave identically under stress. Failing to account for this correlation is a frequent cause of insolvency in decentralized derivatives, as the assumed diversification of collateral is revealed to be illusory.