币界网报道：Ethena Labs, creator of the synthetic dollar USDtb, and Securitize have enabled 24/7 atomic swaps between BlackRock's tokenized fund BUIDL and Ethena's stablecoin, which is backed by the fund. Securitize announced on X that qualified participants can now permissionlessly exchange BUIDL for USDtb through the USDtb Liquidity Fund, improving institutional and DeFi access to on-chain dollars. Launched in March 2024, BUIDL is the largest tokenized Treasury fund on a public blockchain, recently surpassing $1 billion in AUM and currently holding $2.88 billion TVL. This integration builds on Securitize and Ethena Labs' March collaboration on Converge, an institutional-grade EVM-chain for tokenized assets. USDtb, introduced in December 2024 as an alternative to Ethena's derivatives-backed USDe, derives 90% of its reserves from BUIDL, offering users a yield-bearing asset with distinct risk characteristics. USDtb currently has a $114 million market cap and $1.46 billion FDV according to CoinMarketCap.