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Deployments · platform by BNY

BlackRock Select Treasury Based Liquidity Fund OnChain Shares (BSTBL)New

An on-chain share class of an existing BlackRock registered Treasury money market fund, launched in August 2026 on Ethereum. BNY acts as transfer agent and tokenisation provider, and the shares can move between approved investor wallets. Like BRSRV, launched the same day, it is meant to qualify as a reserve asset for US payment stablecoin issuers.

AnnouncedProof of conceptPilotLive (limited)Live (scaled)

Live (limited) since 3 Aug 2026[1] — Class net assets reported in N-MFP3 filings; no on-chain tracker yet. · Reviewed 13d ago

Assets
Fund interest[1]
On-chain share class of an existing fund
Networks
Ethereum Public, permissionless[1]
Use cases
Fund subscription and redemption[3][1]Treasury management[1]
Jurisdictions
United States

Participants

Assets

Metrics

  • $17.96mOnChain Shares net assets · as of 30 Sep 2026[3]
    Class-level net assets of the OnChain Shares class (C000277486) in the fund's N-MFP3 monthly report to the SEC.
  • ~$6.77bnWhole fund net assets (all classes) · as of 30 Sep 2026context[3]
    Sum of the eight share classes in the same filing; Institutional shares are about $6.44bn of it.
  • $7.45m / monthGross subscriptions · as of Aug 2026[4]
    August 2026 total gross subscriptions of the OnChain Shares class (C000277486), from the fund's N-MFP3.
  • $0 / monthGross redemptions · as of Aug 2026context[4]
    August 2026 total gross redemptions of the same class. Context so subscriptions and redemptions are not added together (decision 2026-10-26-flows-2).
  • $10.53m / monthGross subscriptions · as of Sep 2026[3]
    September 2026 total gross subscriptions of the OnChain Shares class (C000277486), from the fund's N-MFP3.
  • $0 / monthGross redemptions · as of Sep 2026context[3]
    September 2026 total gross redemptions of the same class. Context so subscriptions and redemptions are not added together (decision 2026-10-26-flows-2).

Timeline

  1. Happened 3 Aug 2026 · Launch · recorded 15 Oct 2026
    BlackRock adds an Ethereum-based OnChain share class to its Select Treasury Based Liquidity Fund, with BNY as transfer agent.[1][2]

Sources

  1. [1]BlackRock Expands Tokenized Cash Platform with BSTBL OnChain Shares and BRSRV — BlackRock (via Business Wire / 01net), 3 Aug 2026. Accessed 15 Oct 2026.B
  2. [2]BlackRock launches two tokenized money market funds for stablecoin reserves — The Block, 3 Aug 2026. Accessed 15 Oct 2026.C
  3. [3]BlackRock Liquidity Funds, Form N-MFP3 for BlackRock Select Treasury Based Liquidity Fund, report date 30 Sep 2026 — U.S. Securities and Exchange Commission (EDGAR), 7 Oct 2026. Accessed 18 Oct 2026.A
  4. [4]BlackRock Select Treasury Based Liquidity Fund: Form N-MFP3 monthly report for August 2026 — BlackRock Liquidity Funds (SEC Form N-MFP3), 8 Sep 2026. Accessed 26 Oct 2026.A
  5. [5]BlackRock Liquidity Funds statement of additional information (Form 497) — U.S. Securities and Exchange Commission, 3 Aug 2026. Accessed 28 Oct 2026. SAI dated 31 July 2026: custodians, accounting services provider, distributor, transfer agent, counsel, auditor; OnChain Shares sections..A

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