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Spark's strategic director: The ETH market faces liquidity risks due to a potential 10% to 15% reduction in rsETH loans

The strategic director of Spark, monetsupply.eth, posted on platform X that as the stablecoin market begins to lack liquidity, the situation is entering a more dangerous phase. I believe that the ETH market is about 16.5% supported by rsETH, and if the loans supported by rsETH experience losses shared between the mainnet and external chains, there may be a 10% to 15% reduction in emode, leaving a remaining 2% to 3% reduction for ETH suppliers to smooth out the umbrella structure.ETH suppliers naturally tend to exit as soon as possible to avoid this risk, so the utilization rate is locked at 100%, and the borrowing rates are insufficient to incentivize the repayment of unrelated LST cycles (wstETH, weETH) to release liquidity. Since users cannot withdraw ETH, those who borrow stablecoins like USDT and use ETH as collateral cannot close their positions even when stablecoin borrowing rates rise, cutting off the typical incentive mechanism to maintain market health.Currently, two unhealthy incentives are causing the market utilization rate to be locked at 100%: 1) ETH holders cannot close their positions to maintain a healthy LTV, and liquidators cannot atomically withdraw or sell collateral, which may lead to bad debts if the ETHUSD price falls. 2) Users supplying USDT, in order to exit their holdings, tend to maximize borrowing of other stablecoins, which is currently generating positive returns (temporarily), thus the exit cost is low; if conditions worsen, they can at least recover 75% of the position value.The bottom line is that these pooled/re-staked lending markets must maintain liquidity at all costs to operate normally. The recent weakening of slope2 against Aave's maximum borrowing rate is having a negative impact and significantly increasing the risk of failure in the yield market.

Monad Co-founders: If a rate limit is set on collateral supply, today's rsETH event could prevent a loss of about 200 million dollars

Keone Hon from Monad Lianchuang stated: "I feel that the lending protocol for the liquidity pool should set rate limits on the supply of assets deposited as collateral. For example, if the current supply is 100 million and the supply cap is 300 million, then in the next 10 minutes, the maximum allowed increase should be to 110 million, rather than allowing a one-time deposit of the full 200 million. In reality, no one needs to complete such a large deposit all at once.This is important because when certain exotic assets are attacked, the impact depends on the scale of the exit channels for that asset. Especially in many cases where attacks belong to infinite issuance vulnerabilities, the scale of the exit that can be made essentially determines the upper limit of the attack losses. Lending protocols are often the largest exit channels. If a smart cap is introduced, where the initial cap is slightly above the current supply and is gradually adjusted to the real cap over several hours, it would have a huge effect. With such a mechanism, rsETH depositors could have avoided about 200 million dollars in losses.This also raises a point: the asset issuers themselves should support such mechanisms. If you are issuing redeemable tokens with redemption delays, you are not worried about hackers redeeming directly from you, but you need to compress the scale of external exit paths as much as possible without affecting normal users. Therefore, a high supply cap should be seen as a risk rather than a symbol of strength. For example, the Hyperbridge DOT attack did not result in a 100 million dollar loss because there were very few exit paths; the Resolv attack loss was 24 million dollars instead of 200 million dollars because the scale of the exit path limited the loss cap. This is an obvious principle, but there are still immediately actionable measures: audit the supply caps of all assets and lower the caps when unnecessary."

Spark: The delisting of rsETH assets in January had caused strong dissatisfaction among ETH leveraged users, but it has now been proven to be a prudent strategy

The head of the Spark Protocol strategy, monetsupply.eth, posted on platform X stating that in January of this year, low-usage assets like rsETH were removed and collateral and functionality were continuously tightened. This move sparked strong dissatisfaction among "ETH leveraged" users at the time.Additionally, Spark has long set a high upper limit on interest rates in the ETH lending market, transferring some business and revenue to Aave over the past year (where its ETH borrowing rate once dropped to 10% or below). However, in the current market crisis environment, this strategy has proven to be more prudent. Currently, SparkLend still maintains sufficient ETH withdrawal liquidity, while Aave has experienced liquidity tightness and even "lock-up" situations in the Ethereum mainnet and multi-chain markets like Arbitrum and Base.monetsupply.eth further warned that since ETH is the core collateral asset, when market utilization reaches 100%, collateral liquidation will not be able to execute normally. The depletion of liquidity not only affects the depositor experience but may also pose systemic risks. In the current situation of insufficient liquidity in Aave, a 15%-20% drop in ETH prices could lead to significant bad debt accumulation (in addition to the potential impact of the rsETH incident).
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