$14 Trillion BlackRock Picks Ethereum for Tokenized Funds

BlackRock Names Ethereum for OnChain Shares

The BSTBL update says the fund’s transfer agent maintains the official ownership record using a permissioned system connected to a public blockchain. The filing also says the fund invests 100% of its total assets in cash, U.S. Treasury instruments with maturities of 93 days or less, and overnight repurchase agreements that purchase Treasury instruments.

That makes the product closer to regulated cash management than a crypto-native yield token. The blockchain layer is used to represent and move fund shares, while the portfolio remains a traditional short-term government money-market strategy.

The filing says OnChain Shares may be purchased only by investors whose wallet addresses are registered and verified by the transfer agent. It also says transfers are subject to whitelisting, freezing, rejection, and other controls.

Those restrictions are central to why large asset managers keep choosing controlled versions of public-chain settlement. Ethereum brings the deepest wallet, custody, and smart-contract base, but the fund still uses permissioned access because registered fund shares are not meant to move like open meme tokens.

BlackRock has already pulled readers into this story through its tokenized liquidity fund, BUIDL. Its move into Uniswap-linked BUIDL liquidity showed how tokenized Treasuries can start to plug into DeFi-style rails without abandoning compliance gates.

Stablecoin Reserve Vehicle Targets Wallet Users

The second May 8 filing is broader. BlackRock Daily Reinvestment Stablecoin Reserve Vehicle would issue OnChain Shares through Securitize Transfer Agent, LLC, and the filing describes a permissioned system operating across multiple public, permissionless blockchains.

The specific chain names in that filing appear as placeholders, so it was not immediately clear which networks would be supported at launch. That omission keeps the competitive field open for chains trying to win tokenized cash and collateral flows.

The fund’s stated objective is current income consistent with liquidity and stability of principal. The filing says it would invest in cash, U.S. Treasury bills, notes and other Treasury obligations with maturities of 93 days or less, and overnight repurchase agreements.

The filing lists a $3 million minimum initial investment and no subsequent minimum. It also says the fund intends to operate so that OnChain Shares can qualify as eligible reserve assets for payment stablecoin issuers under the GENIUS Act framework, while warning that parts of that law remain subject to interpretation.

That stablecoin angle is the practical reason this filing lands differently from an ordinary mutual fund update. Stablecoins are now a $320 billion-plus pool of on-chain cash, and issuers, crypto banks, and large wallet users need liquid reserve instruments that can move closer to blockchain settlement hours.

BlackRock’s earlier Coinbase Prime ETF transfers showed how much attention large custody movements already receive. Tokenized money-market shares would move another piece of the same institutional stack, cash equivalents, closer to wallets and settlement systems.

Ethereum Leads the Tokenization Chain Race

Ethereum’s advantage is not that every institution will use one chain for every asset. The stronger point is that more high-value tokenized finance products keep naming Ethereum first, while other networks are still fighting for specific niches.

BlackRock CEO Larry Fink has already argued that tokenized markets work better with common rails, a theme we covered when he discussed the need for one blockchain standard. The new filings do not resolve that question, but they show where BlackRock is putting at least one regulated fund share class now.

JPMorgan made a similar choice for its tokenized money-market product, MONY, which we covered in JPMorgan’s Ethereum fund launch. The pattern is hard to ignore: when issuers want public-chain distribution, Ethereum keeps appearing near the front of the file.

The competition is still active. DTCC is working on tokenized U.S. Treasuries through Canton Network, a more institution-focused rail we covered in DTCC’s Canton Treasury plan. Solana, Stellar, Avalanche, Polygon, and other chains are also trying to capture slices of tokenized Treasury and stablecoin activity.

RWA.xyz has tracked tokenized real-world assets above $30 billion, with cash-like products and Treasuries among the most visible categories. BlackRock said in its first-quarter release that assets under management were $13.9 trillion at March 31, giving its tokenization choices unusual signaling power even when the initial share classes are small.

The open questions are now operational. The SEC process is still the next gate, the final chain list for the stablecoin reserve vehicle was not disclosed in the filing, and uptake will depend on whether stablecoin issuers, crypto custodians, and institutional wallets actually treat tokenized fund shares as usable collateral or reserve instruments.

For now, the signal is narrower but important. BlackRock is not saying the chain race is over. It is saying Ethereum is already acceptable enough to carry a regulated, ERC-20 money-market fund share class while the rest of the market fights for the next layer of tokenized settlement.