Shared Collateral Dependency
Shared Collateral Dependency is a systemic risk factor where multiple financial products rely on the same underlying assets for backing. When a large portion of the market uses the same set of assets as collateral, the system becomes highly sensitive to the idiosyncratic risks of those assets.
If the market value of the shared collateral collapses, it triggers a simultaneous crisis across all products that depend on it. This creates a hidden layer of correlation that is not immediately apparent during stable market conditions.
It is a classic example of how diversification can fail when the underlying components are tied to the same source of liquidity. Monitoring the concentration of collateral across the ecosystem is vital for understanding systemic health.