BlackRock on August 3, 2026, launched two tokenized money market funds — the BlackRock Daily Reinvestment Stablecoin Reserve Vehicle (BRSRV) and tokenized shares of the BlackRock Select Treasury-Based Liquidity Fund (BSTBL) — designed to qualify as eligible reserve assets under the GENIUS Act. Se...
"We see lots of growth ahead in stablecoin and we want to be the reserve manager of choice." — Martin Small, Chief Financial Officer, BlackRock
BlackRock on August 3, 2026, launched two tokenized money market funds — the BlackRock Daily Reinvestment Stablecoin Reserve Vehicle (BRSRV) and tokenized shares of the BlackRock Select Treasury-Based Liquidity Fund (BSTBL) — designed to qualify as eligible reserve assets under the GENIUS Act. Securitize serves as transfer agent and tokenization provider for both products, which deploy across Ethereum, Solana, and Tempo blockchains.
The launch extends BlackRock's existing position in tokenized treasuries, where its BUIDL fund holds approximately $2.87 billion in assets under management as of mid-July 2026. BlackRock already manages $60 billion in reserves for Circle, representing roughly 25% of the current ~$300 billion stablecoin market. With BRSRV, the firm is positioning to capture additional reserve mandates as the GENIUS Act's compliance framework takes effect and stablecoin supply expands toward projected levels of $1.9 trillion to $4 trillion by 2030, per Citigroup estimates.
BRSRV requires a $3 million minimum investment. Wallets must be whitelisted and tied to verified identities. The fund holds cash, short-term U.S. Treasury securities, and overnight repurchase agreements backed by Treasuries. It does not invest in cryptocurrencies.
BlackRock filed with the SEC in May 2026 for both products. BRSRV is a new fund created specifically for the stablecoin reserve use case, while BSTBL is a tokenized share class layered onto an existing BlackRock money market fund.
BRSRV features daily dividend reinvestment and multi-chain access across Ethereum, Solana, and Tempo, with the prospectus noting that additional networks may be supported. The fund invests exclusively in cash, short-term U.S. Treasury securities, and overnight repurchase agreements collateralized by government securities. This asset mix matches the GENIUS Act's eligible reserve definition precisely.
BSTBL operates as tokenized on-chain shares on Ethereum, providing a more traditional money market fund structure with blockchain-based ownership records.
Both funds use Securitize as transfer agent and tokenization provider. Securitize has become the dominant infrastructure layer for institutional tokenization, handling transfer-agent functions for BlackRock's BUIDL fund as well. The $3 million minimum investment and mandatory wallet whitelisting with verified identities confirm that both products target institutional participants — primarily stablecoin issuers, crypto custodians, and digital asset platforms, rather than retail investors.
Jon Steel, BlackRock's Global Head of Product and Platform for Cash Management, stated: "As demand grows for high-quality reserve assets to support stablecoins and other tokenized financial products, these funds provide clients with additional choice in how they access and use money market fund investment solutions across traditional and digital markets."
The GENIUS Act, signed into law after passing the Senate 68-30 on June 17 and the House 308-122 on July 17, establishes the first binding federal framework for dollar-backed payment stablecoins. The law requires permitted payment stablecoin issuers (PPSIs) to maintain reserves backing each stablecoin on a one-to-one basis using specific eligible assets.
Eligible reserves under the Act include:
The FDIC Board of Directors approved a notice of proposed rulemaking on April 7, 2026, to implement the Act by establishing requirements and standards for FDIC-supervised PPSIs and insured depository institutions involved in stablecoin activities. A proposed rule would cap any single counterparty exposure at 40% of total reserve assets, forcing issuers to diversify across multiple reserve managers.
This 40% concentration limit is significant. Tether currently holds $183.3 billion in stablecoin supply (63.9% market share as of August 2026), and Circle holds approximately $72 billion in USDC. If these issuers must spread reserve management across at least three counterparties, the addressable mandate pool for asset managers expands considerably. BlackRock currently manages $60 billion for Circle alone; under a 40% cap, Circle would need at least $108 billion managed by non-BlackRock counterparties if USDC supply grows to $270 billion.
BlackRock is not operating in isolation. At least six major asset managers have filed for or launched stablecoin reserve money market products since April 2026:
| Firm | Product | Launch/Filing Date | Minimum Investment | Fee | |---|---|---|---|---| | Morgan Stanley | Stablecoin Reserves Portfolio (MSNXX) | April 2026 | $10 million | 0.15% | | BlackRock | BRSRV / BSTBL | August 3, 2026 | $3 million | Not disclosed | | State Street | Stablecoin Reserves MMF (SSCXX) | June 16, 2026 | Not disclosed | Not disclosed | | Fidelity | Reserves Digital Fund | June 18, 2026 | Not disclosed | Not disclosed | | Invesco | Stablecoin Reserves Onchain Fund | Filed June 24, 2026 | Not disclosed | Not disclosed | | JPMorgan | OnChain Liquidity-Token MMF (JLTXX) | Filed May 13, 2026 | $1 million | 0.16% |
Morgan Stanley moved first among traditional asset managers, launching in April 2026 with a $10 million minimum. State Street partnered with Anchorage Digital, the first federally chartered crypto bank, as an initial investor. Fidelity structured its fund to map directly onto GENIUS Act asset class requirements. Invesco used Superstate as sub-transfer agent, differentiating its blockchain infrastructure choice. JPMorgan deployed on Ethereum using its Kinexys Digital Assets platform, making JLTXX its second on-chain fund after the December 2025 launch of MONY.
BlackRock's competitive advantage is scale and incumbency. Its Cash Management Group oversees nearly $1.073 trillion in cash strategies. The firm's existing $60 billion Circle mandate and $2.87 billion BUIDL fund provide infrastructure that competitors must build from zero.
BRSRV's deployment across Ethereum, Solana, and Tempo represents a strategic shift. BUIDL launched on Ethereum in March 2024 and subsequently expanded to six chains. BRSRV launches as a multi-chain product from day one.
The inclusion of Solana is notable. BlackRock filed separately with the SEC on July 31, 2026, to issue tokenized fund shares on Solana, underscoring the firm's view that Solana's throughput and cost structure suit institutional cash management workflows. Solana's transaction fees remain below $0.01, compared to Ethereum's variable gas costs, and finality times are sub-second versus Ethereum's ~12 seconds.
Tempo, a less widely known chain, appears in the BRSRV prospectus alongside Ethereum and Solana. The choice signals that BlackRock and Securitize are building for a multi-chain future where reserve assets must be accessible across different settlement environments.
The broader tokenized treasury market has grown to approximately $26–28 billion in AUM as of mid-2026, up from roughly $1 billion in early 2024, according to RWA tracking data. U.S. Treasury and cash-equivalent products account for the majority of the $33.5 billion total tokenized RWA market. BlackRock's BUIDL leads at $2.87 billion, followed by Ondo's USDY at approximately $2.1 billion.
The stablecoin market as of early August 2026 stands at approximately $287–301 billion in total supply, depending on the tracking methodology. The market remains heavily concentrated:
The GENIUS Act is expected to catalyze supply growth by providing regulatory clarity that allows U.S.-regulated banks and financial institutions to issue or hold stablecoins. Citigroup projects global stablecoin issuance could reach $1.9 trillion to $4 trillion by 2030.
At the midpoint of that range ($3 trillion), the reserve management opportunity exceeds the current U.S. money market fund industry in addressable assets. U.S. money market funds currently exceed $8.4 trillion in assets. Even a $2 trillion stablecoin market would generate annual management fees of $3–4 billion at a 0.15–0.20% fee rate, sufficient to support several large-scale institutional reserve managers.
The competitive dynamic is compounded by the banks' own tokenized deposit initiative. JPMorgan, Bank of America, Citigroup, Wells Fargo, HSBC, BMO Financial Group, Truist, and Fifth Third Bank are building a shared tokenized deposit network through The Clearing House, targeting a first-half 2027 launch. Tokenized deposits would compete directly with stablecoins for payment and settlement use cases, but they would also require similar reserve management infrastructure. The network's blockchain vendor has not been selected.
BlackRock's BRSRV launch crystallizes a structural shift in how stablecoin reserves are managed. The product is not a speculative bet on crypto adoption; it is a fee-generating cash management vehicle built atop the same asset classes — Treasuries, repos, and cash — that anchor BlackRock's existing $1.073 trillion cash business. The GENIUS Act has converted what was previously a gray-area operational choice (where to park stablecoin reserves) into a regulated compliance requirement with specific eligible asset definitions.
The resulting market structure resembles traditional money market fund competition, where scale, fee compression, and distribution networks determine winners. BlackRock's incumbency — its $60 billion Circle mandate, Securitize infrastructure, and multi-chain reach — provides a starting advantage. But the 40% concentration rule ensures no single firm captures the entire market.
The next 12 months will determine whether the reserve management fee pool expands as projected. That depends less on BlackRock's product design and more on whether stablecoin supply growth materializes at the pace Citigroup and others forecast. If the market doubles from $300 billion to $600 billion by end-2027, the reserve management opportunity doubles with it. If it stalls, six firms will compete for a pool that barely justifies the infrastructure cost. BlackRock is betting on the former.