Simple Summary
On April 24, ezETH experienced a liquidity crunch that resulted in a market price drop starting at 2024-24-04 02:25 UTC. The ezETH/WETH/0.86 LLTV market accrued 10.96 WETH in insolvencies, of which, 7.12 WETH was socialized to the Gauntlet LRT Core Vault.
As shown in the chart below, users who deposited in our Vault prior to 2024-04-22 11:27 UTC
are net positive in their supply position due to accrued interest. Users supplying into LRT Core on 2024-04-22 and withdrawing after 2024-24-04 realized a slight loss.
The LRT Core vault whitelists a range of liquid restaking token (LRT) collateral markets and optimizes risk-adjusted yield. The purpose of this vault was to capture riskier yield opportunities for WETH suppliers with a higher risk appetite. Users with lower risk appetite have a variety of alternative vaults to choose from, such as our WETH Prime vault.
ezETH Price Volatility Timeline
On April 24, 2024:
02:25 UTC
: The ezETH/WETH oracle first dipped below 1.002:29:47 UTC
: The first liquidation occurred at block 1972226902:52:35 UTC
: 145 of the 146 total ezETH liquidations occurred13:00:47 UTC
: Final liquidation
ezETH Liquidations
- 138 liquidations in the ezETH/WETH/0.86 LLTV market
- Net debt repaid: 5035 WETH
- Net collateral liquidated: 6236.72 ezETH
- Net socialized insolvencies: 10.96 WETH
- 8 liquidations in the ezETH/WETH/0.77 LLTV market
- Net debt repaid: 804 WETH
- Net collateral liquidated: 1000.25 ezETH
- Net socialized insolvencies: 0
LRT Core contributed 65% of the ~7.6k WETH supplied in this ezETH/WETH/0.86 market at the time of these liquidations; the insolvencies socialized to our depositors come out to be 7.12 WETH, representing .0011 (11 bps) of WETH supply to LRT Core Vault.
ezETH/WETH Liquidity
The WETH Liquidity in the ezETH/WETH Balancer pool decreased from 4K WETH down to as low as 500 WETH before rebounding to 1300 WETH between 2024-24-4 00:00 UTC
and 2024-24-04 08:00 UTC
. A combination of factors led to liquidity decreasing:
- ezETH holders swapping out of their position
- Liquidators liquidating ezETH positions swapping out of the ezETH they claimed
The underlying price oracle used in this market relies on a few liquidity pools:
- ezETH/WETH Balancer pool
- ezETH/weETH/rswETH Balancer pool
- ezETH/WETH Curve Pool
- ezETH/WETH Uniswap V3 pool
Decreasing liquidity in all of the pools put downward pressure on the underlying price oracle used in the ezETH/WETH/0.86 LLTV Morpho Blue market, triggering further liquidations, which in turn led to even lower liquidity in these pools as liquidators swapped out of ezETH to realize their profits.
For more data and charts on ezETH price trajectory, liquidity, and liquidations, please see the Appendix.
Background and Overview of Gauntlet Vaults
Gauntlet operates multiple vaults with different risk profiles, and correspondingly, different yields. To name a few of them and their strategies:
- Gauntlet WETH Prime: lend WETH against blue chip collateral (wstETH, sDAI), averaging ~3% APY
- Gauntlet USDC Prime: lend USDC against bluechip collateral (wstETH, WBTC), averaging ~8% APY
- Gauntlet LRT Core: lend WETH against LRT collateral (ezETH), averaging ~20% APY
Morpho Blue’s well-designed architecture isolates risk within each individual lending market, preventing contagion across markets; risky positions in one market do not affect others external to that market. This enables Gauntlet to implement differentiated yield strategies across vaults allocated to distinct markets.
Parameterization of the LRT Core Vault
LRT Core allocates user-supplied WETH into three ezETH collateral markets:
- ezETH/WETH/0.86 LLTV
- ezETH/WETH/0.77 LLTV
- ezETH/WETH/0.625 LLTV
Prior to the ezETH/ETH price drop on 2024-24-04, LRT Core had a total of 5k WETH in the 0.86 LLTV market, 2k WETH in the 0.77 market, and 400 WETH in the 0.625 market. The collateral at risk under a 5% price drop was stable around ~1.5k WETH, 10% price drop at ~2k WETH on the 0.86 LLTV market. In the 0.77 and 0.625 LLTV markets, there were minimal liquidations at risk up to a 10% price drop. Considering the liquidity in the relevant ezETH liquidity pools in the past week and liquidations on other protocols, we concluded that the level of insolvency risk was acceptable when considered with the consistent yield accrued through borrower interest in these markets.
Currently, we observe no outsized risk of cascading liquidations. Given the recent volatility of ezETH’s market price and the liquidity landscape of ezETH, Gauntlet has started to slowly reallocate WETH supply out of the ezETH/WETH/0.86 LLTV market into lower LLTV tranche markets to maximize risk-adjusted returns. We will continue to update the community on our strategy for the LRT Core Vault going forward.
FAQs
- Why does the vault allocate to three ezETH markets with different LLTVs?
- When determining appropriate liquidation loan-to-values (LLTVs) and allocation amounts across various markets, we consider a combination of factors, including market liquidity, existing risky borrower positions, and external market risk considerations, such as highly leveraged positions on other protocols. Our analysis revealed that the ezETH market had sufficient liquidity to support more risk-averse borrowers who would maintain lower leverage compared to those in the 0.86 LLTV market. Consequently, borrowers in the 77% LLTV ezETH/WETH market primarily maintained positions with sufficiently high health factors, resulting in only 8 liquidations, in contrast to the 138 total liquidations observed in the 0.86 ezETH/WETH market. Furthermore, only the borrowers in the 86% LLTV market accumulated any insolvent debt.
- Will LRT Core move to markets with different oracle setups (ex: an exchange rate oracle) going forward?
- We are looking into this. It is likely that an exchange rate oracle would have led to fewer borrowers getting liquidated. Note that our WETH Prime vault allocates WETH into wstETH/WETH markets that use exchange rate oracles.
Next Steps
Given the recent volatility of ezETH/ETH’s market price, Gauntlet has reallocated a portion of LRT Core’s WETH supply into the 0.77 and 0.625 markets to maximize risk-adjusted interest yields. We will continue to update the community on our strategy for the LRT Core Vault here going forward.
Appendix
ezETH/ETH Price Trajectory
The chart below compares the RedStone and Chainlink ezETH/ETH oracle price updates around the time of the ezETH price volatility. While the feeds were in sync for the most part, the RedStone was quicker to respond to the price action and sent more price updates in the below timeframe than the Chainlink oracle.
Similar to the stETH dislocation event, there was a significant reduction in liquidity leading up to the large ezETH dislocation. Although WETH liquidity has partially recovered in the Balancer pool, it remains 65% below the levels seen before the dislocation event.
Liquidations that resulted in Insolvencies
Here are the liquidations that resulted in insolvencies: