Ethena Announces New Stablecoin UStb Backed by BlackRock Reserves Ethena, a growing player in the stablecoin market, has announced plans to launch its latest stablecoin, UStb, which will be backed by reserves invested in BlackRock’s U.S. Dollar Institutional Digital Liquidity Fund (BUIDL). According to Golden Finance, this new stablecoin will offer a unique risk profile