Collateral Reuse Limits

Collateral reuse limits refer to the policy or technical constraints placed on how often the same asset can be used as collateral across multiple lending and borrowing protocols. In the current DeFi landscape, users can deposit an asset into one protocol, receive a derivative token, and then use that token as collateral in another protocol, creating a chain of leverage.

While this increases capital efficiency, it also builds systemic risk, as the failure of the underlying asset can trigger a wave of liquidations across all the linked protocols. Setting limits on this reuse ⎊ or "recursive leverage" ⎊ is a key strategy for preventing contagion.

By enforcing strict loan-to-value ratios and limiting the ability to re-collateralize derivative tokens, protocols can ensure that the system remains stable even during market corrections. This balance between capital efficiency and systemic safety is a central tension in the design of modern, sustainable financial derivatives.