Rehypothecation
Rehypothecation is the practice where a lender or protocol uses the collateral provided by a borrower to secure its own borrowing or to lend to other parties. This increases the overall leverage in the system and allows for greater capital efficiency.
However, it also creates complex chains of debt and interdependencies between different protocols. If the original collateral is lost or if there is a run on the system, it can lead to a chain reaction of defaults.
Rehypothecation is a major contributor to systemic risk, as it makes it difficult to track the ultimate ownership and security of assets. It is a common practice in traditional finance that has been adopted by some DeFi protocols.
Understanding the extent of rehypothecation is crucial for assessing the true stability of a decentralized financial ecosystem.