Borrow Native Assets
Using the supplied assets or SuToken as collateral, users can borrow native assets (USDC, USDT, DAI, ETH, WBTC) from Sumer’s borrowing facility.
Collateral Rate or LTV
Each borrow position carries Collateral Rates (i.e. Loan-to-Value ratio), which signify the amount available to be borrowed for each collateralized asset.
A Collateral Rate of 75% means that the users can only borrow up to 75% of the value of their collateralized assets.
Applicable Collateral Rates while borrowing from Sumer are;
Intra Collateral Rate or LTV
The maximum value of asset that can be borrowed when collateral and borrowing asset belong to the same homogeneous group
For e.g. Borrowing ETH by supplying stETH
Inter Collateral Rate or LTV
The maximum value of asset that can be borrowed when collateral and borrowing asset belong to the different heterogeneous group
For e.g. Borrowing ETH by supplying USDC or Minting suETH by supplying USDT
Borrow Limit
The borrow limit is yielded as the sum of locked collateral value, times the maximum LTV ratio of collateral
Borrows can be made until the user's liability reaches their position's borrow limit. . One should observe that the borrow limit fluctuates with the oracle-reported deposit asset price.
Borrow Interest
The protocol charges users' interest while repaying the borrowed assets.
Each borrowing will carry a compounded interest determined based on the interest rate model specific to the borrowed asset.
The loan can be repaid anytime by the user. Any changes to the interest rate model will be made through the governance process.
Timelock
At launch, Sumer has Timelock introduced for withdrawal of borrowed assets.
Users cannot withdraw borrowed assets within the same block in which the collateral is supplied.
Protocol Parameters
Key Protocol Parameter determined through the Governance process are;
Intra LTV (IntraCratemantissa)
Inter LTV (InterCratemantissa)
Borrow Limit (User)
Interest Rate Model
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