Re-Hypothecation
Re-hypothecation is the practice where a financial institution or protocol reuses the collateral pledged by a client to secure its own financing or to lend to other participants. In traditional finance, this is common in prime brokerage, but in cryptocurrency, it is often automated through smart contracts in lending protocols.
By allowing assets to be re-pledged, the system increases liquidity and capital efficiency, allowing more participants to trade with less idle capital. However, this mechanism creates a hidden layer of leverage that is difficult to track.
If the entity re-hypothecating the assets fails, the original owner of the collateral may lose their claim, leading to significant losses. This creates a systemic fragility where a single failure can trigger a chain reaction of defaults across the market.
Transparency is often lacking, making it hard for users to assess the actual exposure of the protocols they interact with. It effectively turns a single asset into the basis for multiple derivative positions simultaneously.