By Isaac • May 1, 2026 10:39 am •
BlackRock’s BUIDL tokenized U.S. Treasury fund is now live as trading collateral on OKX. Qualified institutional clients can post BUIDL as margin while continuing to earn U.S. dollar yield benchmarked against the Federal Funds rate. Standard Chartered is providing regulated custody for the arrangement.
The three-way framework, announced April 28, connects BlackRock’s tokenized Treasury exposure, Standard Chartered’s bank custody, and OKX’s institutional execution and margining infrastructure into a single workflow. Standard Chartered described it as the first time a globally systemically important bank has acted as custodian in this kind of off-exchange tokenized collateral setup.
Your collateral shouldn’t sit idle.
BlackRock’s BUIDL is now live as yield-bearing collateral on OKX — safeguarded in Tier 1
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