BlackRock BUIDL — The Largest Tokenized Treasury Fund

BlackRock BUIDL: Tokenized Treasury Fund at Scale

BlackRock’s BUIDL fund reached $2.01 billion in AUM (RWA.xyz, March 2026) with a 3.45% 7-day APY, making it the second-largest tokenized treasury product globally after Circle USYC ($2.40B). The fund has distributed $100 million+ in total dividends since inception, with monthly distributions of $4-8 million, and expanded to 8 blockchains — Ethereum, Aptos, Avalanche, Polygon, Optimism, Arbitrum, Solana, and BNB Chain. BlackRock — the world’s largest asset manager — launched the USD Institutional Digital Liquidity Fund (BUIDL) in March 2024 on Ethereum, becoming the most significant institutional endorsement of blockchain-based fund distribution. Bank of New York Mellon serves as custodian, while Securitize acts as transfer agent and tokenization platform (18.08% platform market share). The fund invests 100% in cash, U.S. Treasury bills, and repurchase agreements, targeting a $1.00 NAV per token.

Fund Structure

BUIDL is structured as a BVI-domiciled fund managed by BlackRock Financial Management, Inc., with Securitize acting as transfer agent, tokenization platform, and marketplace operator. Fund shares are issued as ERC-20 tokens, with each token maintaining a $1.00 NAV through daily yield distribution (additional tokens issued to represent accrued interest). The minimum investment is $5,000,000 for U.S. Qualified Purchasers, with a management fee of 0.20-0.50% and no performance fee. Estimated annual management fee revenue is $8.5-14 million. Infrastructure partners include Anchorage Digital, BitGo, Copper, and Fireblocks alongside Bank of New York Mellon for cash and securities custody.

The fund’s investment mandate — short-duration U.S. Treasuries, repo, and cash — mirrors traditional money market fund strategies. The portfolio maintains a weighted average maturity under 60 days, with the vast majority of assets in U.S. Treasury bills and Treasury-backed repurchase agreements. The blockchain-native distribution wrapper is the innovation: 24/7 transferability, T+0 settlement on Securitize, and composability with DeFi protocols.

The $1.00 NAV stability is maintained through daily yield accrual — interest earned on Treasury holdings is distributed as additional BUIDL tokens to holders proportional to their position size. This mechanism differs from traditional money market fund yield distribution (which typically occurs monthly) by providing continuous compounding on blockchain rails. The daily distribution creates a rebasing mechanism where a holder’s BUIDL balance increases daily to reflect earned yield.

Growth Trajectory

BUIDL’s growth from launch ($0) to $2.0 billion+ in less than two years represents the fastest asset gathering for any tokenized fund product:

The growth trajectory reflects two distinct demand sources. Traditional institutional investors — pension consultants, registered investment advisers, family offices — allocated to BUIDL for tokenized Treasury exposure with the credibility of the BlackRock brand. DeFi protocols — MakerDAO, Ethena Labs, and others — allocated for on-chain yield that is superior to stablecoin lending rates and backed by U.S. government obligations.

DeFi Integration

BUIDL’s integration with decentralized finance protocols represents the most direct connection between traditional asset management and on-chain finance. MakerDAO allocated $1 billion+ to BUIDL and other tokenized Treasury products as backing for the DAI stablecoin, making MakerDAO the single largest allocator to tokenized Treasury products. Ethena Labs holds substantial BUIDL positions as reserve backing for its USDe stablecoin.

The DeFi integration creates programmatic demand for BUIDL — demand that operates through governance votes and smart contract allocations rather than traditional institutional sales processes. When MakerDAO governance votes to increase its RWA (real-world asset) allocation, the resulting BUIDL purchases execute automatically through on-chain mechanisms. This programmatic demand channel represents a fundamentally new distribution model for asset management products.

The DTCC’s Tokenized Collateral Network enables BUIDL shares to be pledged as margin collateral for cleared derivatives — connecting tokenized fund shares with traditional clearing infrastructure. This integration is commercially significant: institutional derivatives users can earn Treasury yields on their margin collateral (through BUIDL) while satisfying DTCC margin requirements, rather than holding non-interest-bearing margin deposits. The capital efficiency improvement incentivizes BUIDL adoption by derivatives-heavy institutions.

Competitive Landscape

BUIDL operates in an increasingly competitive tokenized Treasury fund market:

BUIDL’s competitive advantages are brand (BlackRock’s institutional credibility), multi-chain distribution (8 blockchains with notable cross-chain AUM: Avalanche $554.7M, Aptos $544.1M, Polygon $530.9M as of October 2025), and institutional integration (DTCC collateral eligibility, Binance collateral listing since November 2025, Uniswap DEX trading for whitelisted investors since February 2026). Franklin Templeton’s BENJI competes with a patent-pending intraday yield feature and broader chain support (9 chains). WisdomTree’s WTGXX received landmark SEC exemptive relief in February 2026 enabling 24/7 trading and instant USDC settlement. Ondo Finance competes on DeFi integration depth, reaching a $1.926B total TVL ATH in December 2025 and acquiring Oasis Pro Markets for broker-dealer registrations.

The competitive dynamic benefits the broader tokenized Treasury ecosystem. Platform market share is led by Circle (20.87%, $2.4B), Securitize (18.08%, $2.1B), and Ondo (17.06%, $1.9B). The total tokenized Treasury market reached $11.70B across 73 products and 55,520 holders (RWA.xyz, March 2026), growing 7,400% from $100M in January 2023. BlackRock is also developing proprietary tokenization technology to reduce fees and improve settlement, and filed for a Bitcoin income ETF in January 2026.

Strategic Significance

BlackRock’s entry legitimized tokenized fund products for the broadest institutional audience. When the world’s largest asset manager — managing pensions, sovereign wealth funds, central bank reserves — launches a tokenized fund, the technology graduates from experimental to institutional. BlackRock CEO Larry Fink has publicly described tokenization as “the next generation for markets,” signaling long-term strategic commitment beyond BUIDL.

The institutional credibility transfer is measurable. Before BUIDL’s launch, institutional allocators commonly cited “lack of institutional-grade products” as a barrier to tokenized asset adoption. BUIDL eliminated this objection for the Treasury yield category. The question shifted from “should we invest in tokenized products?” to “which tokenized products should we evaluate?” — a fundamentally different institutional conversation.

Multi-Chain Expansion

BUIDL expanded to 8 blockchains — Ethereum, Aptos, Avalanche, Polygon, Optimism, Arbitrum, Solana, and BNB Chain — with significant multi-chain distribution (Avalanche $554.7M, Aptos $544.1M, Polygon $530.9M as of October 2025, with Ethereum holding the majority of remaining supply). The multi-chain strategy — maintaining the same fund structure while distributing shares across multiple blockchains — enables investors to hold BUIDL on the blockchain that best suits their needs. Ethereum dominates institutional RWA with 59% market share and 335 products, but alternative chains offer lower transaction costs and growing DeFi ecosystems.

The multi-chain approach also positions BUIDL for interoperability with institutional DLT platforms. Integration with Canton Network — where BNY Mellon provides custody and Goldman Sachs GS DAP provides issuance infrastructure — enables BUIDL to participate in institutional workflows (collateral pledging, repo financing, settlement) that require connectivity across multiple platforms.

Risk Considerations and Operational Framework

BUIDL’s operational framework addresses several risk dimensions that institutional investors evaluate before allocating. Credit risk is minimized through the exclusive investment in U.S. Treasury obligations — the risk-free benchmark for global fixed-income markets. Liquidity risk is managed through the fund’s $1.00 NAV stability mechanism and daily redemption availability through Securitize. Technology risk — the risk of smart contract vulnerabilities, blockchain network disruptions, or key management failures — is mitigated through Securitize’s SEC-registered transfer agent infrastructure, third-party smart contract audits, and BNY Mellon’s institutional-grade custody.

The regulatory risk profile is notable. BUIDL operates as an unregistered fund (exempt from 1940 Act registration) available to qualified purchasers, which limits investor access but reduces regulatory complexity. The fund’s BVI domicile provides jurisdictional flexibility while BlackRock Financial Management’s U.S. registration ensures SEC oversight of the investment management function. For institutional investors conducting operational due diligence, this structure provides familiar legal architecture with the addition of blockchain-based distribution.

BUIDL’s fee structure — while not publicly disclosed at a granular level — is competitive with traditional institutional money market funds, reflecting BlackRock’s scale economics. The fund’s ability to distribute yield daily through token issuance (rather than monthly NAV adjustments) provides a compounding advantage that partially offsets platform-related costs. For investors comparing BUIDL with non-tokenized Treasury exposure, the relevant comparison includes both the management fee differential and the capital efficiency gains from DTCC collateral eligibility and 24/7 transferability.

Future Product Roadmap

BlackRock’s tokenization strategy likely extends well beyond BUIDL to encompass multiple asset classes and fund structures. The firm’s distribution network reaches every major institutional investor globally — pension funds, sovereign wealth funds, insurance companies, endowments, and central banks. Combined with Securitize’s tokenization infrastructure, BNY Mellon’s digital custody, and Canton Network’s interoperability, BUIDL represents the template for institutional tokenized fund distribution.

Potential product extensions include tokenized bond funds (investing in corporate bonds and sovereign bonds rather than Treasuries only), tokenized equity funds (providing index exposure through tokenized fund structures), and tokenized private markets funds (providing access to BlackRock’s alternative investment strategies through tokenized distribution).

For the broader capital markets tokenization ecosystem, BUIDL’s success validates the thesis that institutional investors will adopt tokenized products when three conditions are met: trusted brand (BlackRock), familiar asset class (U.S. Treasuries), and institutional infrastructure (Securitize tokenization, BNY Mellon custody, DTCC collateral eligibility). As these conditions extend to additional asset classes, the tokenized bond market forecast projects significant growth in institutional tokenized product adoption. According to JPMorgan research, BUIDL-style products could reach $10-20 billion in combined AUM by 2028 as more asset managers launch competing products and institutional adoption accelerates.

BUIDL’s position within the total RWA tokenization market ($20B TVL excluding stablecoins, $375.99B including stablecoins, 630,000+ holders) as a leading institutional tokenized fund product underscores BlackRock’s market leadership. DTCC’s acceptance of BUIDL tokens as collateral through its Tokenized Collateral Network — connecting the world’s largest asset manager with the world’s largest settlement infrastructure — represents the most significant institutional validation of tokenized fund products to date.

Contact for institutional inquiries: info@capitaltokenization.com