BlackRock USD (BUIDL): Institutional RWA Meets Blockchain
BUIDL is BlackRock's tokenized US Treasury fund — the world's largest asset manager's entry into on-chain real-world assets, with $3B in circulation and daily yield paid directly to token holders.
Quick answer
BUIDL is BlackRock's tokenized US Treasury fund — the world's largest asset manager's entry into on-chain real-world assets, with $3B in circulation and daily yield paid directly to token holders.
BlackRock USD Institutional Digital Liquidity Fund (BUIDL) is the world's largest asset manager's landmark entry into tokenized real-world assets. Launched in March 2024 on Ethereum in partnership with Securitize, BUIDL is a tokenized money market fund that invests 100% of its assets in cash, US Treasury bills, and repurchase agreements — and distributes daily accrued yield directly to token holders' wallets as newly minted BUIDL tokens. With $3.04 billion in circulation as of April 2025, BUIDL is the largest tokenized US Treasury product on a public blockchain.
Structure and Eligibility
BUIDL is a registered security under US law, available exclusively to qualified institutional investors who have completed Securitize's onboarding process. Unlike public stablecoins such as USDT or USDC that can be purchased by anyone, BUIDL is a permissioned instrument — holders must be pre-approved and added to Securitize's investor registry before they can receive or transfer tokens.
This permissioned structure is what makes BUIDL fundamentally different from consumer stablecoins: it is an institutional cash management tool that happens to exist on a public blockchain, not a peer-to-peer settlement medium. Investors use BUIDL to hold cash equivalents that generate yield while remaining instantly movable on-chain — without the operational overhead of traditional money market fund settlement.
Daily Yield Distribution On-Chain
The defining feature of BUIDL's design is its daily dividend mechanism. Each day, yield earned by the fund's Treasury and repurchase agreement portfolio accrues to BUIDL holders and is distributed as new BUIDL tokens directly to each holder's wallet. This eliminates the periodic NAV-based accrual that characterizes traditional money market funds and creates a near-real-time yield distribution that operates on blockchain time rather than banking time.
The fund maintains a stable $1 per token valuation, with yield distributed as additional tokens rather than through price appreciation — closely mimicking the accounting treatment of traditional money market funds while operating on public blockchain infrastructure.
Multi-Chain Expansion
Initially launched exclusively on Ethereum, BUIDL has expanded to Aptos, Solana, Polygon, Avalanche, Arbitrum, OP Mainnet, and several other networks as institutional demand for on-chain Treasury exposure has grown across chains. Ethereum remains the largest deployment at $1.27B, but the multi-chain expansion reflects growing institutional demand for Treasury exposure across different blockchain ecosystems.
The 1-month change of +19.37% reflects the rapid institutional adoption of tokenized RWA products as a category — with BUIDL benefiting from being the flagship product from the world's most recognized asset management brand.
Protocol Data — BUIDL (Source: DeFiLlama)
The following metrics are sourced from DeFiLlama's stablecoin tracker. Data is approximate and subject to change.
Conclusion
BUIDL is not a consumer stablecoin — it is institutional cash management infrastructure built on public blockchains. BlackRock's entry into tokenized RWAs has legitimized the category in the eyes of sovereign wealth funds, hedge funds, and corporate treasuries that previously regarded blockchain-based money market products with skepticism. With $3 billion in assets, multi-chain deployment, and the credibility of the world's largest asset manager behind it, BUIDL is establishing the template for how institutional capital will access on-chain yield in the years ahead.
Frequently Asked Questions
What is BlackRock USD (BUIDL)?
BUIDL is BlackRock's tokenized US Treasury fund — the world's largest asset manager's entry into on-chain real-world assets, with $3B in circulation and daily yield paid directly to token holders.
How does BlackRock USD (BUIDL) maintain its peg?
BlackRock USD (BUIDL) maintains its dollar peg through over-collateralised crypto assets or fiat reserves. The specific mechanism — whether over-collateralisation, algorithmic rebasing, or fiat-backed reserves — determines its stability profile, capital efficiency, and risk characteristics. Full details are available in the protocol's documentation.
Is BlackRock USD (BUIDL) backed 1:1 with US dollars?
That depends on the type of stablecoin. Fiat-backed stablecoins hold cash or cash-equivalent reserves at a 1:1 ratio. Crypto-backed stablecoins like DAI are over-collateralised and hold more collateral than the stablecoins issued. Algorithmic stablecoins may not hold 1:1 reserves at all times. Check BlackRock USD (BUIDL)'s official documentation for the exact backing structure.
What collateral backs BlackRock USD (BUIDL)?
BlackRock USD (BUIDL)'s collateral composition is defined in its smart contract parameters and may include cryptocurrencies, tokenised real-world assets, or fiat-equivalent deposits. The current collateral breakdown is typically published in real time via the protocol's dashboard or on-chain analytics tools such as DeFiLlama.
Is BlackRock USD (BUIDL) safe?
No stablecoin is entirely risk-free. BlackRock USD (BUIDL) carries risks specific to its peg mechanism, including collateral volatility, oracle failure, smart contract vulnerabilities, and regulatory action against its issuer or backing assets. Reviewing audit reports and understanding the peg mechanism is essential before holding significant amounts.
What are the risks of holding BlackRock USD (BUIDL)?
Risks include de-pegging events (where the stablecoin trades above or below $1), smart contract exploits, collateral liquidations, issuer insolvency (for fiat-backed variants), and regulatory restrictions. Historical de-peg events in the stablecoin market — including the collapse of TerraUSD in 2022 — underscore the importance of understanding each stablecoin's mechanism before committing capital.
Where can I buy or obtain BlackRock USD (BUIDL)?
BlackRock USD (BUIDL) can typically be acquired on decentralised exchanges (such as Uniswap or Curve Finance) or centralised exchanges. Some stablecoins can also be minted directly through the issuing protocol by depositing the required collateral. Check CoinMarketCap or CoinGecko for a list of exchanges listing BlackRock USD (BUIDL).
How can I earn yield on BlackRock USD (BUIDL)?
BlackRock USD (BUIDL) can be deposited into lending protocols such as Aave or Compound, supplied to DEX liquidity pools on Uniswap or Curve, or staked in the issuing protocol for protocol rewards. Yield rates fluctuate based on supply and demand. Always compare rates on aggregators like DeFiLlama's yield tracker before committing funds.
Who created BlackRock USD (BUIDL)?
BlackRock USD (BUIDL) was created by a team of blockchain developers or a decentralised protocol. Some stablecoins are issued by regulated companies (Circle issues USDC; Tether issues USDT), while others such as DAI are governed by a decentralised autonomous organisation (MakerDAO). Check the official BlackRock USD (BUIDL) website for publisher information.
How does BlackRock USD (BUIDL) compare to USDT and USDC?
USDT (Tether) and USDC (Circle) are the two largest stablecoins by market capitalisation and are both fiat-backed. BlackRock USD (BUIDL) may differ in its collateral type, decentralisation level, transparency, supported chains, and regulatory status. Decentralised stablecoins like DAI or USDe offer censorship resistance that fiat-backed alternatives cannot provide, at the cost of greater complexity and different risk exposures.