The arrangement centres on BlackRock's BUIDL fund, a tokenised money market product that holds cash, U.S. Treasury bills, and repurchase agreements and distributes yield on-chain. Eligible institutional and VIP clients of OKX Middle East can now post BUIDL as collateral to support derivatives and margin trading, either held in custody at Standard Chartered's Dubai International Financial Centre entity or deposited directly on OKX. Retail investors are not eligible; the product is restricted to qualified institutional participants. The launch is the first time a G-SIB has served as custodian in an off-exchange tokenised collateral programme of this kind.

Rifad Mahasneh, CEO of OKX for the Middle East, North Africa, and CIS region, framed the product's institutional rationale in risk terms: "This product was designed to minimise risk rather than add layers of risk. It becomes more efficient collateral and productive collateral." He described the broader logic plainly: "Tokenised assets can support active trading instead of staying idle." On the custodial choice, Mahasneh added: "Some clients prefer Standard Chartered custody; some prefer OKX custody. The novel idea is generating yield in both cases." Short-term U.S. Treasury yields were running at approximately 4 to 5 percent at the time of launch, a figure subject to daily market movement, compared with the effectively zero return on idle exchange collateral.

How the Framework Works

Clients have two operational paths. The off-exchange option keeps BUIDL tokens in Standard Chartered's DIFC custody, segregated from OKX's own assets, with the exchange managing margin calculations and liquidations in real time against that off-platform balance. The on-exchange option deposits BUIDL directly into OKX, where it functions as fungible margin alongside USD, USDC, and other dollar-denominated stablecoins. OKX frames the off-exchange path as suited to institutions with strict counterparty separation requirements, while the on-exchange path is designed for higher-frequency traders.

The OKX and Standard Chartered custody relationship dates to October 2024, when OKX selected the bank as its third-party institutional custodian. The tokenised collateral programme itself launched on April 10, 2025, initially using Franklin Templeton's BENJI fund.

By October 2025, when the programme expanded into the European Economic Area following OKX's MiCA licence, it had accumulated over $100 million in assets under custody. The BUIDL integration is the programme's most prominent addition to date.

BUIDL's Scale and Trajectory

BlackRock launched BUIDL in March 2024 as its first tokenised fund, managed in partnership with Securitize. BUIDL reached $1 billion in assets under management faster than any comparable product in the tokenised fund category. It now holds approximately $2.5 billion in assets under management, making it the largest tokenised money market fund in the world, and operates across nine blockchain networks including Ethereum, Solana, and BNB Chain.

The OKX integration follows a series of exchange listings: Crypto.com and Deribit accepted BUIDL as collateral in June 2025, and Binance followed in November 2025. Reports from February 2026 indicated the fund went live on Uniswap through UniswapX, which would mark the first time a major Wall Street product used decentralised exchange infrastructure for institutional securities trading; that claim is pending final confirmation against Securitize and BlackRock official disclosures.

Roughly 30 percent of the total tokenised Treasury market, estimated at around $9 billion, is now being deployed as active collateral rather than held passively, though these figures are approximations drawn from multiple data providers and should be treated as indicative.

Regional Context: Dubai as the Entry Point, With Wider Implications

The launch runs through OKX Middle East under licensing from Dubai's Virtual Asset Regulatory Authority (VARA), which granted OKX a full virtual asset service provider licence in October 2024. Standard Chartered's DIFC entity provides the regulatory and custodial anchor. The choice of Dubai reflects the emirate's deliberate positioning as a venue where traditional finance and crypto infrastructure are being integrated at the institutional level.

Mahasneh's remit spans not only the Middle East and North Africa but also the Commonwealth of Independent States, and the institutional infrastructure being assembled in Dubai is being built with that broader Eurasian geography in mind, covering markets from the Gulf through Central Asia and into the former-Soviet sphere.

The framework carries indirect significance for South Asia. Indian institutional capital structured through UAE-domiciled entities falls within OKX Middle East's client eligibility under VARA-regulated infrastructure, and Standard Chartered operates across India, Pakistan, Bangladesh, and Sri Lanka.

In Africa, the picture is more distant but not irrelevant. Sub-Saharan Africa recorded over $205 billion in on-chain transaction value between July 2024 and June 2025, a 52 percent year-on-year increase. Standard Chartered is one of the few G-SIBs with active commercial banking operations across the continent. Nigeria advanced its regulatory framework materially with the Investments and Securities Act 2025, which formally recognised digital assets as securities. Kenya's Virtual Asset Service Provider Act and Ghana's legalisation of crypto activity are similarly creating conditions for institutional products to take hold in those markets. As Standard Chartered builds tokenised asset custody capability in its DIFC entity, comparable services could eventually extend through its African branch network. That thesis is supported by activity from SC Ventures, the bank's innovation arm, which is evaluating a $100 million fund focused on African fintech infrastructure scale-ups.

The IMF flagged a relevant concern in an April 2026 note on tokenised finance, warning that blockchain-based financial infrastructure could both amplify market crises faster than regulators can respond and accelerate capital flows across borders faster than oversight frameworks can track, with particular risk for emerging markets where capital flight could intensify.

That context will shape how regulators in South Asia and Africa interpret frameworks like this one as they write domestic tokenisation rules.

What Comes Next

Standard Chartered has projected that the broader tokenised real-world asset market, excluding stablecoins, could reach $2 trillion by 2028 and $30 trillion by 2034, with Ethereum carrying the majority of on-chain activity. McKinsey has separately projected the market could reach $2 trillion by 2030, providing additional triangulation across institutional forecasters even as the timeline estimates diverge.

In September 2025, SC Ventures announced a $250 million digital asset fund targeting institutional investors, with significant MENA capital participation and a planned 2026 launch, signalling the bank's deepening commitment to the asset class beyond custody services alone.

The total tokenised RWA market has already grown roughly 400 percent since early 2025, reaching approximately $30 billion.

Whether BUIDL's OKX integration accelerates that trajectory depends partly on how quickly comparable regulatory frameworks mature outside Dubai, and whether the custody and margining model can be replicated across other exchanges and jurisdictions without the compliance overhead that may currently limit participation to institutional and VIP clients.