Liquidations
Last updated
Last updated
Troves get liquidated if the LTV goes above the maximum value (90.91% for Stables and 83.33% for BTC).
USDaf uses Stability Pools as its primary liquidation mechanism to absorb liquidated debt and collateral. Each borrow-market has its own dedicated Stability Pool earning liquidation gains (in the respective collateral) in exchange for burning debt.
Just-In-Time liquidations and a redistribution of debt and collateral across borrowers of the same market handle liquidations as a last resort when the Stability Pool is empty.
A liquidated borrower usually incurs a penalty of 5% and will be able to claim the remaining collateral after liquidation.
A special case is when a Redistribution is necessary, then the loss amounts to 10% of the debt (at most). That corresponds to a max. loss of 9.09% expressed in terms of collateral.
The liquidation of Troves is connected with certain gas costs which the initiator has to cover. The protocol offers a gas compensation given by the following formula:
0.0375 WETH + min(0.5% trove_collateral, 2_units_of_BTC_or_Stable)
The 0.0375 WETH is funded by a while the variable 0.5% part comes from the liquidated collateral, slightly reducing the liquidation gain for Stability Providers.
That depends on the collateral type used.
Yield-Bearing Stablecoins has a max LTV of 90.91%,
Bitcoin (wBTC/tBTC/cbBTC) has a max LTV of 83.33%.
To open a new Trove, the protocol requires a liquidation reserve of 0.0375 ETH regardless of the chosen collateral, which is set aside to cover the gas costs of a potential liquidation. The deposit is returned when the Trove is closed by the user (including upon redemptions).
In Liquity V2, there are no upfront fees. Instead, users pay interest on an ongoing basis, making it suitable for short-term loans as well.
The interest paid is determined by the rate set by the user. For example, if a user borrow 10,000 USDaf at a 5% interest rate, that user pays ~500 USDaf in interest after one year. This interest is added to the outstanding debt.