Collateral Correlation Spike

A collateral correlation spike is the phenomenon where assets that are usually uncorrelated or weakly correlated suddenly move in lockstep during a market crash. In a healthy market, a diverse collateral pool provides stability, but when correlation spikes, the entire pool behaves as a single, risky asset.

This renders diversification strategies ineffective and exposes the protocol to systemic risk. This often happens during extreme market stress when all participants are forced to sell assets to cover their liabilities.

For protocol designers, it is a difficult challenge to account for this behavior in risk models, as it is a non-linear, behavioral effect. Recognizing when correlations are shifting is key to managing systemic exposure and preventing contagion.