TLDR
- OKX adds BlackRock’s BUIDL as regulated collateral for institutions
- Standard Chartered custody supports OKX’s tokenized Treasury margin
- BUIDL now helps eligible OKX clients trade with Treasury exposure
- OKX links tokenized Treasury assets with regulated bank-backed custody
- BlackRock’s BUIDL gains wider use in institutional crypto collateral
OKX has added BUIDL to its institutional collateral framework with Standard Chartered, expanding regulated margin options for large clients. The move brings BlackRock’s tokenized Treasury fund into active crypto trading infrastructure. It also strengthens the link between tokenized assets, bank custody, and exchange risk systems.
OKX Adds BUIDL to Institutional Margin Framework
OKX will allow eligible institutional and VIP clients to use BUIDL as trading collateral. The service applies through OKX Middle East and connects with Standard Chartered custody. As a result, clients can trade while keeping collateral in a regulated banking structure.
The framework gives clients two collateral routes, depending on their setup. They can hold BUIDL off-exchange with Standard Chartered, or they can deposit it directly on OKX. The off-exchange model separates client assets from exchange operations.
OKX described the structure as a G-SIB bank-backed off-exchange tokenized collateral framework. The setup expands its existing collateral mirroring program with Standard Chartered. Besides, it gives institutions a clearer route to use tokenized Treasury exposure for margin.
Standard Chartered Supports Off-Exchange Custody
Standard Chartered will serve as custodian for client collateral under the arrangement. The bank will hold assets separately from OKX’s own balance sheet. The model follows a structure often used in traditional finance custody.
OKX will still manage real-time margin checks and liquidation through its internal systems. This means the exchange will track collateral values during trading activity. Clients will keep ownership of BUIDL and the yield linked to the fund.
The arrangement also treats BUIDL as fungible with USD, USDC, and other dollar-based stablecoins. That approach helps clients use tokenized Treasury exposure in margin accounts. Idle Treasury fund positions can support active trading needs.
Tokenized Treasury Collateral Gains Wider Use
BlackRock’s BUIDL fund runs through Securitize and holds cash, U.S. Treasury bills, and repurchase agreements. The fund distributes yield onchain, which supports its role in tokenized real-world assets. Its structure gives institutions blockchain-based access to short-term Treasury exposure.
The OKX launch comes as tokenized Treasury products gain wider use across crypto market infrastructure. Binance has also added BUIDL and Franklin Templeton’s BENJI to collateral frameworks. Major exchanges now use regulated tokenized funds to support institutional trading systems.
OKX said the service remains live for eligible institutional and VIP clients through OKX Middle East. The company plans to widen access based on jurisdiction and client demand. Overall, BUIDL now holds a stronger role in regulated crypto collateral markets.
