PRISM is a derivatives protocol on Terra that introduces a novel DeFi primitive. It enables users to permissionlessly borrow against their collateral without liquidation risk. This is done by separating deposited collateral into yield and principal components. Thus, users can effectively sell their future yield for a specific period of time and borrow against it. As a result, users have access to liquidity by borrowing against their assets, without the risk of liquidation. This improves capital efficiency and better risk management.