Cross-Collateralization Risk
Cross-collateralization risk arises when a single pool of assets serves as collateral for multiple, often unrelated, trading positions or debt obligations. If the value of the shared collateral drops, all positions supported by that collateral face simultaneous margin pressure.
This creates a point of failure where a decline in one asset can jeopardize the stability of an entire portfolio or lending protocol. In decentralized finance, this is common when users supply one token to borrow multiple others, linking the risk profiles of all involved assets.
If the supplied collateral becomes illiquid or suffers a price crash, the protocol may be unable to cover the outstanding debt, leading to bad debt for the system. This risk is compounded by the correlation between different digital assets, which often move in tandem during market stress.
Effective management requires rigorous collateral haircuts and asset diversification.