Liquidity Concerns in Stablecoin Market Pose Risks to DeFi Ecosystem

Spark Protocol's strategy head, monetsupply.eth, expressed concerns on the X platform about tightening liquidity in the stablecoin market. According to Odaily, the current rsETH security incident may be entering a more dangerous phase, with approximately 16.5% of the ETH market supported by rsETH. If losses are evenly distributed across the mainnet and cross-chain environments, rsETH collateral loans in eMode could face a 10%-15% discount. After risk buffers are exhausted, ETH depositors might still bear a 2%-3% residual loss. This expectation is prompting ETH providers to exit quickly, locking market utilization at 100%, while borrowing rates fail to incentivize the unwinding of leveraged positions in wstETH, weETH, and similar assets to release liquidity. Additionally, users borrowing stablecoins like USDT against ETH collateral are struggling to close positions promptly, even as stablecoin lending rates rise, disrupting the market's original incentive mechanisms. Monetsupply.eth further noted that in a "locked" state of 100% utilization, the DeFi market could face a cascading liquidation crisis with two major distorted incentives: ETH holders cannot adjust healthy collateral ratios, and liquidators cannot withdraw and sell collateral assets, potentially leading to rapid bad debt accumulation if ETH prices fall. Meanwhile, stablecoin depositors might be motivated to "exit indirectly" by lending other stablecoins, securing about 75% of fund recovery at a lower cost while still yielding positive returns. For lending markets reliant on liquidity pools and rehypothecation, liquidity must be prioritized. However, Aave's recent reduction of the maximum borrowing rate cap (slope2) is weakening deleveraging incentives, significantly increasing the risk of systemic failures in the market.