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OKX Adds BlackRock’s BUIDL as Institutional Collateral With Standard Chartered Custody

The move shows tokenized Treasury funds can function as dollar-like collateral under regulated bank custody.

Standard Chartered logo is seen in this illustration taken January 7, 2026. REUTERS/Dado Ruvic/Illustration/File Photo
Blackrock, standard chartered power okx tokenized treasury collateral system

Overview

  • An integration announced Tuesday lets eligible institutional and VIP clients post BlackRock’s BUIDL as margin on OKX Middle East under a Standard Chartered setup.
  • Client BUIDL stays in segregated custody at Standard Chartered during trading, with OKX handling margin checks and liquidations.
  • Inside OKX’s margin engine, BUIDL is treated like USD or USDC and clients keep both ownership and the fund’s onchain yield.
  • Institutions can keep BUIDL at the bank for off-exchange use or deposit it directly on OKX, based on their operational setup.
  • More exchanges now accept tokenized Treasury funds, with Binance already backing BUIDL and BENJI, but OKX has not detailed stress-period rules or its broader rollout.