Rift Vaults implement an interest rate floor for the ETH side of the Vault, mitigating the risk of impermanent loss for liquidity providers. Initially, this floor is set to 0 – meaning the LPs will always receive back at least their initial deposit, except in the most extreme scenarios. Additionally, it implements an interest rate ceiling for the DAO side – so that any yield in excess of the ceiling is used to reward LPs. Initially, the ceiling is set to 0. Parameters will be tuned over time for optimal allocation of risk and reward.