BlackRock USD Institutional Digital Liquidity Fund

buidl
CoinYQ Dossier

BUIDL: when the shareholder register moved into a wallet

BUIDL turned a non-voting share in a private BVI cash-management fund into a token an approved investor could hold in a wallet. Launched in March 2024, the share gained faster settlement, new networks and new uses while the transfer agent, custodian and offering documents continued to govern it.

The share came before the token

The legal issuer, BlackRock USD Institutional Digital Liquidity Fund Ltd., was formed in the British Virgin Islands in 2023. Its first SEC notice described an unregistered pooled-investment-fund offering under Rule 506(c) and Section 3(c)(7). When BlackRock announced BUIDL on 20 March 2024, the object being sold was therefore already clear: a private fund interest for qualified investors.

Its portfolio was designed for cash management rather than crypto speculation—cash, short U.S. Treasury obligations and secured repos. Each token represented a non-voting participating share. The $1 target made the wallet balance easy to read, but the same launch notice warned that $1 could fail and principal could be lost.

Four institutions stand behind one wallet balance

BlackRock Financial Management chooses and manages the investments. BNY Mellon holds the fund assets and serves as administrator. Securitize keeps the official shareholder record, disburses dividends and operates the tokenization layer; its broker-dealer affiliate Securitize Markets places shares with eligible investors.

That division explains what happens when a subscription reaches a wallet. Securitize issues shares only after documents are in good order and the custodian confirms funds. It can refuse an unauthorized transfer, correct the token record, and process redemption under the offering memorandum. The blockchain is part of the register, not a replacement for the institutions around it.

A $1 share developed several exits

At launch, income accrued daily and arrived as additional tokens each month. For fund redemption, a May 2024 Securitize Markets STEP application described shareholders sending shares into the transfer-agent process on a business day and receiving USD at NAV in the bank account of record, subject to deadlines and minimums. That is the shareholder route.

Circle’s 24-hour USDC exchange, later RLUSD support and the 2026 UniswapX market offered different exits: a holder sells or exchanges the share with another approved counterparty. Those routes can feel more like crypto settlement, but they are not an unconditional promise by the fund to redeem dollars around the clock.

The chain list grew faster than the public address registry

BUIDL moved beyond Ethereum to Aptos, Arbitrum, Avalanche, Optimism and Polygon, then added a Solana share class on 25 March 2025. Securitize said the fund had passed $1 billion by then. BlackRock’s anti-fraud page now lists official addresses across those seven chains and two Ethereum representations, a necessary distinction in a market full of look-alike tokens.

On 14 November 2025 Securitize announced another share class on BNB Chain. Yet BlackRock’s anti-fraud address list reviewed in September 2026 still named only the seven earlier networks and did not provide a BNB Chain address. The release establishes the product announcement, but it is not enough to infer which BNB contract is official. An investor needs the exact address and class confirmation before transferring.

The expansion opened practical uses. By June 2025 qualified clients could post BUIDL as collateral on Crypto.com and Deribit; in February 2026 whitelisted investors gained an UniswapX route. The investor-approval process follows the fund across chains. Ethereum provides the clearest public example of the technical controls: roles can issue, pause, freeze, seize, burn and change the proxy implementation. The public sources do not prove identical code on every network. Multichain BUIDL is a more portable regulated share, not permissionless dollars.

How the project changed

  1. 2023-09-18
    The fund company is incorporated

    BlackRock USD Institutional Digital Liquidity Fund Ltd. is formed in the British Virgin Islands as the legal issuer behind the later tokens.

  2. 2024-03-18
    The private offering enters EDGAR

    The first Form D identifies pooled fund interests offered under Rule 506(c) and Section 3(c)(7).

  3. 2024-03-20
    BUIDL launches on Ethereum

    BlackRock introduces its first public-chain tokenized fund, with a $5 million announced initial minimum and monthly token distributions of daily-accrued income.

  4. 2025-03-25
    Solana becomes the seventh listed chain

    A new share class launches on Solana after BUIDL passes $1 billion in reported assets under management.

  5. 2025-06-18
    The share becomes trading collateral

    Securitize announces BUIDL acceptance for qualified or institutional users at Crypto.com and Deribit.

  6. 2025-11-14
    A BNB Chain class is announced

    Securitize announces a new BUIDL share class and Binance collateral use; BlackRock’s later address list reviewed by CoinYQ does not supply a BNB Chain contract.

  7. 2026-02-11
    Whitelisted trading reaches UniswapX

    Securitize Markets adds an RFQ route among approved participants while preserving pre-qualification.

  8. 2026-07-27
    The Form D record is amended again

    The amendment repeats the $100,000 minimum-accepted field already present in the initial Form D; it does not resolve the $5 million launch and STEP statements or replace current class terms.

Evidence and primary sources

Last evidence review: 2026-09-05

What is BlackRock USD Institutional Digital Liquidity Fund?

BUIDL is the blockchain form of a non-voting, participating share in BlackRock USD Institutional Digital Liquidity Fund Ltd., a private British Virgin Islands fund. The share is a security and an interest in the fund. It is not a retail payment stablecoin, a bank deposit, or a receipt giving its holder title to one identified Treasury bill.

The fund invests through BlackRock Financial Management in cash, short U.S. Treasury obligations and secured repurchase agreements, with certain affiliated government money funds permitted under the stated strategy. BNY Mellon is custodian and administrator. Securitize acts as transfer agent, registrar, dividend disbursing agent and tokenization platform, while Securitize Markets places the shares with eligible investors.

What problem does BlackRock USD Institutional Digital Liquidity Fund solve?

BUIDL began with a narrow infrastructure question: can a private cash-management fund let an approved investor hold and transfer the official share record in a wallet instead of waiting for every step to pass through a conventional fund portal? The answer was a public-chain token surrounded by private-market controls.

That design brings faster on-chain settlement and new collateral or exchange routes, but it does not erase the fund. Investor status, subscription documents, the shareholder register, custody of portfolio assets, business-day redemption and administrator decisions still determine what the token can do.

How does BlackRock USD Institutional Digital Liquidity Fund work?

An investor first passes the eligibility, identity and wallet checks required by Securitize and the current offering documents. Once subscription documents are accepted and the custodian confirms funds, Securitize records and issues the applicable digital shares. A transfer can settle on-chain at any hour only when the receiving participant and wallet are approved; the transfer agent may delay or refuse an improper or unauthorized transfer.

Portfolio income belongs to shareholders under the class terms. The 2024 launch described daily accrual paid as new tokens each month, while the 2025 Solana-class release described daily payouts. Investors should therefore check the current class supplement rather than assume one schedule for every BUIDL token.

Fund redemption is distinct from a token swap. A May 2024 Securitize Markets STEP application described business-day USD redemption at NAV through the transfer-agent record, with a cutoff and payment to the shareholder account of record; it also described a $250,000 minimum for partial redemptions except a full exit. Circle, RLUSD, USDtb and UniswapX routes may offer faster secondary liquidity, but they depend on separate counterparties, whitelists and terms.

On-chain administration is deliberate. The verified Ethereum proxy can be retargeted by its owner, and Securitize’s servicing stack assigns roles for issuance, transfer validation, pausing, freezing, seizure and burns. These controls let the legal register and token record be reconciled; they also mean BUIDL is not censorship-resistant money.

Key facts

  • BUIDL is a non-voting participating fund share represented as a digital security; it is not a general-purpose stablecoin.
  • The issuer is a BVI limited company formed in 2023. Its U.S. offering relies on Rule 506(c) and Investment Company Act Section 3(c)(7).
  • The March 2024 launch release and May STEP application stated a $5 million initial minimum. The initial Form D and July 2026 amendment both report $100,000 as the minimum accepted from an outside investor. The public records do not explain the class or context difference; current class documents control.
  • The May 2024 STEP application described cash, U.S. Treasury obligations maturing within three months of purchase settlement and secured repos; permitted affiliated government money funds could be treated on a look-through basis. Current confidential class documents control.
  • BlackRock Financial Management manages investments; BNY Mellon is custodian and administrator; Securitize maintains transfer, registry, distribution and tokenization functions.
  • The $1 target is not guaranteed, and launch disclosures warn that investors can lose principal.
  • By March 25, 2025 BUIDL was on seven chains. This catalog page tracks the original Ethereum BUIDL contract 0x7712…2aec; the official address 0x6a9D…9041 is a distinct I Class, BUIDL-I, of the same fund.
  • USD fund redemption, USDC/RLUSD exchange routes, and collateral use are separate processes with different counterparties and availability.
  • The original Ethereum token is an upgradeable, permissioned proxy whose administrators can issue, validate or stop transfers, freeze or seize balances, burn and change implementation.

Official links

Categories

Related coins

Frequently asked questions

Is BUIDL a stablecoin?

No. It is a tokenized private-fund share. It targets a roughly $1 NAV and distributes fund income, but BlackRock’s disclosure says it may fail to maintain $1 and investors can lose principal.

Who is eligible to buy BUIDL?

The fund is for professional or qualified investors who pass the applicable private-offering, KYC/AML and wallet approval process. The U.S. filing relies on Rule 506(c) and Section 3(c)(7); the confidential current offering documents control each investor’s eligibility.

Is the minimum still $5 million?

Public sources conflict: the launch release and May 2024 STEP application said $5 million, while the initial Form D and July 27, 2026 amendment both report $100,000 as the minimum accepted from an outside investor. Neither filing field is a universal subscription quote; check the current class documents.

Can a holder redeem BUIDL for dollars at any time?

The offering-derived process described business-day USD redemptions at NAV, subject to transfer-agent finality, cutoffs, account-of-record payment and a $250,000 partial-redemption floor except for a full exit. Stablecoin swaps can operate at other hours but are separate, counterparty-dependent transactions.

Who controls the token?

BlackRock manages the portfolio, while the fund board and service providers retain legal and operating roles. Securitize maintains the register and permissioning and has contract roles that can issue, burn, pause, freeze, seize and upgrade or retarget the Ethereum representation.

Is BUIDL-I the same token as the BUIDL on this page?

No. Both refer to share classes of the same legal fund, but BUIDL-I uses a distinct Ethereum contract. This page tracks the original BUIDL address 0x7712…2aec; BlackRock lists 0x6a9D…9041 as official and Etherscan identifies it as the I Class.

External trackers

Choose a tracking site for BlackRock USD Institutional Digital Liquidity Fund: