According to BroadChain, at 20:30 on April 22, the on-chain crisis triggered by the Kelp DAO and LayerZero vulnerability caused a sudden shift in the DeFi lending market landscape. The influx of toxic asset rsETH into Aave resulted in approximately $2 billion in bad debt, leading to a large-scale liquidity crunch and capital flight. Within just a few days, Aave's total deposits plummeted from $48.5 billion to $30.7 billion, with $15.1 billion flowing out, and the utilization rate of WETH on multiple chains hit 100%.
While market panic spread, the lending protocol Spark became a safe haven for funds. Its Total Value Locked (TVL) grew against the trend by $1.3 billion, reaching a total scale of $4.74 billion. The surge in lending demand combined with liquidity scarcity once pushed the annualized deposit rate for ETH on Spark to 130%.
Spark's ability to absorb this wave of liquidity transfer is attributed to its unique ecosystem support. As the lending engine of the Maker ecosystem, Spark is backed by substantial DAI reserves, providing a "central bank"-like liquidity safety net that ensures withdrawal channels remain open even during severe market volatility.
This crisis also highlights the fundamental differences in risk strategies between the two protocols. As early as January 29, when Aave launched rsETH E-Mode to boost TVL, allowing 93% high collateral ratio lending, Spark opted through governance voting to halt new rsETH supply and gradually delist it. This decision, once considered "conservative," has now avoided potential losses.
Spark has established a multi-layered defense system: implementing strict deposit and borrowing rate limits to control single risk exposure; maintaining higher interest rate caps and steeper rate curves to force deleveraging and attract supplementary liquidity during market stress; and adopting a modular isolation architecture to confine high-risk assets within specific risk vaults. The tens of billions of dollars flowing from Aave to Spark indicate a market shift in risk preference from pursuing capital efficiency to prioritizing safety and stability.