BlackRock has introduced a tokenized money market vehicle aimed at payment stablecoin reserves while extending on-chain ownership records for a Treasury-focused liquidity fund to Solana, Ethereum, and Tempo. The move gives approved institutional holders a way to hold shares in a portfolio of cash and short-term U.S. government debt through blockchain-based records, under a structure BlackRock says is designed to qualify as a stablecoin reserve asset under the GENIUS Act.
The new BlackRock Daily Reinvestment Stablecoin Reserve Vehicle, or BRSRV, arrives alongside on-chain tokenized shares in BlackRock’s existing Select Treasury-Based Liquidity Fund, known as BSTBL. A prospectus filed with the U.S. Securities and Exchange Commission states that the funds’ assets are confined to cash, short-term U.S. Treasury securities and overnight repurchase agreements backed by U.S. Treasuries.
That conservative mandate places the products squarely in the part of the tokenization market seeking to connect regulated cash-management vehicles with stablecoin issuers’ reserve needs. BlackRock’s filing explicitly says the fund does not invest in digital assets or virtual currencies, separating the underlying portfolio from the blockchain networks used to record ownership.
Solana and Tempo join Ethereum
BlackRock’s earlier tokenized fund deployment centered on Ethereum. The latest structure expands the supported networks to Ethereum, Solana and Tempo, according to the prospectus, while allowing additional public blockchains to be added later.
The blockchains serve as a recordkeeping layer for the tokenized shares rather than as venues where the fund’s Treasury holdings are placed. Shares are held by approved wallet addresses through transfer agent Securitize, which manages the permissioned system described in the filing.
Solana’s inclusion gives BlackRock a presence on a network built around relatively low-cost, high-throughput transactions. Tempo, also named in the filing, joins Ethereum and Solana as an approved ledger for ownership records. The arrangement could give eligible stablecoin issuers and large cash-management clients a choice of settlement environments without changing the fund’s investment mandate.
The prospectus does not make the tokens freely transferable across the open market. Wallets must be whitelisted and connected to verified identities before they can hold or transfer shares. Securitize, acting as transfer agent, can restrict transfers and, under specified circumstances, freeze, cancel or reissue tokenized shares.
Those controls make the product markedly different from a permissionless token that can move between any compatible wallet. They also address a practical obstacle for regulated funds: maintaining shareholder records, applying eligibility requirements and responding to legal or operational problems while using public blockchain infrastructure.
A high entry threshold limits the initial audience
BlackRock has set a minimum initial investment of $3 million. That threshold, combined with the whitelist requirement, indicates the product is designed for institutions, stablecoin issuers and other large qualified participants rather than retail cryptocurrency users.
For a stablecoin issuer, Treasury money-market fund shares can provide a yield-bearing reserve instrument while keeping assets invested in highly liquid government-backed instruments. Whether BRSRV can be used for any particular stablecoin will depend on the issuer’s reserve policy and applicable legal requirements.
BlackRock said the structure is intended to meet the definition of qualified reserve assets under the GENIUS Act, the U.S. framework governing payment stablecoins. The prospectus also acknowledges that the regulatory treatment could change. Future rules or interpretations could affect whether stablecoin issuers remain able to count fund shares toward reserves.
The filing identifies technical risks alongside those legal considerations. Blockchain outages, failures in associated infrastructure and smart-contract defects could disrupt the movement or processing of tokenized shares. The use of an authorized transfer agent and wallet controls can reduce certain operational risks, but it does not eliminate the possibility that a blockchain network becomes temporarily unavailable.
BlackRock extends its BUIDL strategy
The launch builds on BlackRock’s tokenization effort that began in March 2024 with the USD Institutional Digital Liquidity Fund, widely known by its token ticker BUIDL. BlackRock has said BUIDL has grown to more than $2.6 billion in assets under management.
BUIDL established a model in which fund shares are represented on-chain while the underlying portfolio holds conventional cash-management assets. BRSRV and the tokenized BSTBL shares extend that model toward an increasingly specific commercial use: providing a regulated fund structure that stablecoin operators may use for reserve management.
The stablecoin market had reached roughly $306 billion in total capitalization by late July 2026, according to the figures supplied with the announcement. That market has created demand for reserve assets that can support redemptions, meet regulatory standards and generate income from short-term government debt.
Morgan Stanley and Fidelity have also introduced products aimed at stablecoin reserve management after passage of the GENIUS Act, according to the supplied information. Their entry, along with BlackRock’s, suggests competition is moving beyond the issuance of stablecoins themselves and into the infrastructure managing the cash and Treasury assets behind them.
Tokenization reaches treasury management
Tokenized real-world assets have surpassed $30 billion in total value globally, according to the supplied market data. Much of that growth has been concentrated in tokenized Treasuries and money-market products, where the underlying assets already have established legal ownership, custody and valuation systems.
BlackRock’s multi-chain deployment does not mean large pools of fund capital are being transferred onto Solana or Tempo. The cash and Treasury securities remain in the fund’s conventional portfolio; the networks record ownership of shares. Yet placing those records on multiple chains could make tokenized fund shares easier to integrate with stablecoin settlement systems, permissioned decentralized-finance applications and institutional digital-asset platforms that support the approved networks.
The result is a more tightly controlled version of blockchain finance: public ledgers handle the ownership record, while BlackRock, Securitize and the fund’s compliance procedures retain control over who can enter, transfer and exit the system. For stablecoin issuers looking for eligible reserve instruments, that combination of Treasury exposure, identity controls and multi-chain settlement options is likely to be the central feature of the new offering.
To understand the legal framework behind BlackRock’s stablecoin reserves, explore this GENIUS Act deep-dive next.
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