OKX has expanded its tokenized treasury offering by adding BlackRock’s BUIDL fund to its institutional collateral setup with Standard Chartered.
Summary
How the new collateral model works
The update lets eligible institutional and VIP clients use BUIDL as trading margin. Moreover, Standard Chartered will hold the asset off-exchange, while OKX manages margining and liquidation through its internal risk systems.
Within the crypto margin framework, OKX will treat BUIDL like USD, USDC, and other dollar-denominated assets. Clients can keep the asset with Standard Chartered custody and trade on OKX Middle East. Depending on their setup, they may also deposit BUIDL directly on the exchange.
Why the structure matters
The companies described the model as a G-SIB bank-backed off-exchange tokenized collateral framework. That said, it builds on OKX’s existing collateral mirroring program with Standard Chartered and broadens OKX institutional collateral options.
BlackRock’s BUIDL fund is tokenized by Securitize and invests in cash, U.S. Treasury bills, and repurchase agreements, with yield distributed on-chain. In this setup, the BlackRock BUIDL fund gives trading desks another way to mobilize balance-sheet assets.
Broader market trend
The launch comes as tokenized asset adoption accelerates across crypto market infrastructure. Moreover, other major exchanges have already added tokenized Treasury products to collateral frameworks, including competing tokenized treasury funds and similar products tied to cash-like instruments.
OKX said the service is live for eligible clients via OKX Middle East, with expansion planned according to jurisdiction and demand. The move places tokenized assets closer to mainstream trading workflows while keeping settlement and custody split between two institutions.
As tokenized finance keeps moving into trading infrastructure, OKX’s latest step shows how regulated custody and exchange risk controls can work together.
