Maple Finance selects Ethena’s USDtb as core liquidity buffer asset

Maple Finance, one of the larger institutional lending protocols in DeFi, has integrated Ethena’s USDtb stablecoin into its USD liquidity buffer. The move adds a BlackRock-backed stablecoin layer to a reserve pool holding approximately $400 million in liquid assets. What USDtb actually is and why it matters USDtb is not Ethena’s flashier product. That distinction belongs to USDe, the synthetic dollar that uses derivatives-based hedging strategies to maintain its peg. USDtb is the quieter sibling: a fully reserved stablecoin backed predominantly by shares in BlackRock’s BUIDL tokenized US Treasury fund. Ethena launched USDtb in December 2024, positioning it as the conservative option for protocols and institutions that want stablecoin exposure without the complexity of synthetic mechanisms. For a lending protocol like Maple, which manages overcollateralized loan pools, that risk profile matters enormously. Maple’s conservative playbook Maple Finance has built its reputation on a specific promise: institutional-grade lending with institutional-grade risk management. The protocol has reported zero losses across billions of dollars in loans issued through April 2026. The platform has i...