BlackRock files tokenized treasury fund on Ethereum

TLDR

BlackRock is moving to tokenize part of a large U.S. Treasury money market fund on Ethereum, strengthening the role of public blockchains in traditional finance.

1. BlackRock filed to add a digital share class to its roughly 6.1 billion dollar Select Treasury-Based Liquidity Fund, with tokenized shares issued on Ethereum alongside traditional shares.
2. The move builds on BlackRocks existing BUIDL tokenized Treasury fund and signals that Ethereum is becoming core infrastructure for institutional real world asset (RWA) products.
3. Key things to watch are regulatory treatment, integration with stablecoin treasuries and DeFi, and whether other major asset managers follow with similar on-chain Treasury vehicles.

Deep Dive

1. What BlackRock Filed

According to recent regulatory reporting, BlackRock filed with U.S. authorities to introduce a digital share class for its BlackRock Select Treasury-Based Liquidity Fund, which manages about 6.1 billion dollars in assets and invests in cash, U.S. Treasuries, and very short term government securities. The filing specifies that this new share class would be tokenized on the Ethereum blockchain while coexisting with the funds conventional share classes, effectively putting fund shares on-chain as transferable tokens rather than changing the underlying portfolio strategy. One related filing also describes a new BlackRock Daily Reinvestment Stablecoin Reserve Vehicle focused on short term U.S. government obligations, designed from the outset as tokenized money market infrastructure on public and potentially multiple chains, with Ethereum as a key rail.

2. Why It Matters For Ethereum And RWAs

BlackRock already runs the BUIDL tokenized U.S. Treasury fund on Ethereum, which has grown into a multi billion dollar on-chain product and one of the largest RWA funds in crypto. Analysts now point to the new tokenized money market filings as evidence that large institutions view Ethereum as a primary settlement layer for regulated financial products, not just a retail DeFi chain. As more Treasury exposure migrates on-chain, stablecoin issuers, exchanges, and crypto treasuries can potentially hold tokenized fund shares directly instead of, or alongside, bank deposits and off-chain funds, deepening the RWA and yield-bearing dollar ecosystem around Ethereum.

3. Risks And What To Watch Next

Regulatory treatment remains the main uncertainty, including how tokenized fund shares interact with stablecoin and money market rules and whether laws like the CLARITY or GENIUS acts set new standards for reserves and yield. Operationally, users must still rely on traditional transfer agents, KYC, and whitelists, so access will likely remain institutional or qualified rather than fully permissionless DeFi. Over the next months, key signals will be actual assets raised into the tokenized share class, whether stablecoin treasuries or crypto firms allocate to it, and how deeply products like BUIDL and the new funds integrate with DeFi protocols through partners such as tokenization platforms and on-chain marketplaces.

Conclusion

BlackRocks tokenized Treasury filings show that the largest asset manager is steadily shifting conservative cash products onto Ethereum rails, treating public blockchains as distribution and settlement infrastructure. If regulators are comfortable and institutional users adopt these structures, Ethereums role as a base layer for tokenized dollars, Treasuries, and yield products could expand, with knock on effects for stablecoins, DeFi, and the broader RWA narrative.