According to Wu, according to makerburn data, thanks to Ethena USDe, Spark-Morpho Vault, which has a supply of 350 million DAI, has become Maker's largest source of income, with an annualized fee of $75 million. Previously, MakerDAO expanded the debt ceiling of the direct deposit module to $1 billion, focusing on investing in Ethena USDe and sUSDe through Morpho Labs' lending protocol, initially allocating 600 million DAI.