# BlackRock USD (BUIDL): Institutional RWA Meets Blockchain

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**Publisher:** Decentralized Finance Publication (https://decentralized-finance.io)
**Author:** Decentralized Finance editorial team
**Reviewed by:** Kaiser Khan, Editor in Chief
**Category:** Stablecoins
**Updated:** Apr 19, 2025
**Trust:** Independent, ad-free editorial research. No display advertisements, no paid protocol coverage, no affiliate-driven rankings.

## Summary

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.

- Market Cap: $3.04B
- Price: $1.00
- Total Circulating Supply: 3.04B BUIDL
- 7-Day Change: +1.74%
- 1-Month Change: +19.37%
- Largest Chain: Ethereum (~$1.27B)
- Other Chains: Aptos, Solana, BSC, Avalanche, OP Mainnet, Arbitrum, Polygon
- Category: Fiat-backed (RWA — tokenized US Treasuries)
- Issuer: BlackRock / Securitize (permissioned, institutional only)
- Yield: Daily dividend in BUIDL tokens

## 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.

## Sources

- [BUIDL on DeFiLlama](https://defillama.com/stablecoin/blackrock-usd): Live BUIDL market cap, chain breakdown, and circulating supply
- [BlackRock BUIDL](https://www.blackrock.com/): BlackRock's official site — BUIDL fund information

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