Brief
BlackRock's TradFi tokenized rail. OnChain share class of the existing $6.1B BlackRock Select Treasury Based Liquidity Fund (formerly Liquid Federal Trust, renamed Oct 2025; S&P 'AAAm' rated). SEC 485APOS filed May 8, 2026. BNY Mellon as transfer agent + custody + accounting. Ethereum only via ERC-20 with whitelisted wallets. Fiat wire subscriptions. Bank treasury desks the target buyer.
Recent activity
Latest moves on the changelog feed.
- May 8, 2026NEW
BlackRock → SEC. Two new tokenized money market funds filed via 485APOS. BSTBL (OnChain share class of $6.1B Select Treasury fund; BNY Mellon TA; Ethereum only; fiat wire subscriptions) and BRSRV (purpose-built stablecoin reserve vehicle; Securitize TA; multi-chain; USDC subscription). Both intended as 'eligible reserve assets' for stablecoin issuers under the GENIUS Act. Parallel rails to BUIDL, not extensions of it.
Snapshot
Key terms and identifiers.
- Asset value
- $0
- Fee
- —
- Custodian
- BNY Mellon (TA + custody + accounting)
- Structure
- OnChain share class of $6.1B Rule 2a-7 government MMF (AAA-rated, S&P)
- Chains
- Ethereum
- Investor type
- Bank treasury desks; institutional fiat-wire subscribers
- As of
- 2026-05
- Asset classes
- Treasuries
- Token standards
- erc-20
- Regulatory
- sec-40-act, us-stablecoin-acts
- Jurisdiction
- US
Milestones
How this player got here.
- May 2026485APOS filing adding OnChain Shares (CIK 0000097098)
- Oct 2025Parent fund renamed BlackRock Select Treasury Based Liquidity Fund (from Liquid Federal Trust)
Connections
Who they build with, build on, integrate with.
Dependency
Where this player builds on, integrates, or relies on others.


