What is BlackRock BUIDL?
BUIDL is the token for the BlackRock USD Institutional Digital Liquidity Fund, a tokenized fund whose shares are represented on public blockchains and issued through Securitize. The fund holds cash, US Treasury bills, and repurchase agreements, and each token is designed to hold a stable value of about one dollar while accruing yield from those holdings. It is a real-world-asset (RWA) product that brings a money-market-style fund on-chain rather than a permissionless DeFi application.
Who can hold it?
Access is permissioned. Participation runs through Securitize and is aimed at qualified or institutional investors, with transfers typically restricted to approved addresses. This is a meaningful difference from open stablecoins that anyone can hold and move freely.
What did our review measure?
We recorded roughly $3.4B in value and coverage across 8 chains, a wide multi-chain footprint for a tokenized fund. Our measured age is about 2.1 years. Endpoint latency was low at 109 ms. Our automated review found 0 smart-contract audits; note that a regulated fund is governed by fund administrators, custodians, and financial audits that differ from the code audits we track, so a zero here reflects what our process surfaced rather than proof of no oversight. We did not find a public status page.
What are the risks?
- Access and transfer limits: holdings are restricted to approved participants, so it is not freely tradable like a public stablecoin.
- Issuer and custody trust: value depends on the fund's managers and custodians, not on trustless code alone.
- Smart-contract and bridge risk: the token still lives on-chain across several networks, which carries technical risk.
- Interest-rate sensitivity: yield tracks short-term rates and can fall.
Who is it for?
BUIDL suits institutions and eligible investors who want on-chain access to a Treasury-backed cash instrument with a recognizable manager. It is not designed for retail users seeking a permissionless token, and it should not be mistaken for a decentralized protocol.
Because the token spans several networks, holders should also weigh where their tokens actually sit and how they move between chains, since bridged representations can carry different technical risks than the native issuance. The large value figure in our data signals adoption, not safety; the two are separate questions, and a big number tells you nothing about redemption speed or transfer eligibility. Read the fund's own disclosures for eligibility, fees, and the mechanics of subscribing and redeeming.