
BlackRock has expanded the custodial construction of its iShares Bitcoin Belief (IBIT), formalizing Anchorage Digital Financial institution N.A. as an extra Bitcoin custodian via a brand new Grasp Custody Service Settlement.
The event, disclosed in a Kind 8-Ok submitting dated April 7, 2025, introduces a secondary custodian whereas Coinbase continues to function the first holder of the belief’s Bitcoin reserves.
Twin-Custodian Mannequin Enhances Redundancy
The settlement establishes a dual-custodian mannequin between BlackRock Fund Advisors, the belief’s administrative trustee, and Anchorage, a federally chartered digital asset financial institution.
There won’t be an instantaneous switch of belongings. As a substitute, Anchorage will stay on standby as a professional custodian to help the belief’s danger mitigation protocols.
Per the submitting, Anchorage is required to make the most of chilly storage options for all non-public keys, keep insurance coverage protection, and adjust to provisions that tackle blockchain forks and indemnification duties.
This transfer is in keeping with BlackRock’s positioning of the IBIT ETF as a scalable and resilient product. The presence of a second custodian doesn’t alter the belief’s funding technique or its underlying operational mechanics, but it surely introduces higher structural flexibility.
Institutional Sign Amid Rising Asset Base
The strategic addition of Anchorage could mirror BlackRock’s expectations of elevated Bitcoin holdings inside IBIT and the necessity for operational redundancy.
Since its launch, IBIT has ranked among the many high spot Bitcoin ETFs (and in addition ETFs general) by way of inflows, making danger diversification a logical extension of its custodial setup.
Having Anchorage in reserve bolsters resilience towards potential disruptions in custody companies, whether or not operational, regulatory, or technical. The collection of Anchorage, a financial institution regulated by the Workplace of the Comptroller of the Foreign money (OCC), additional emphasizes a choice for establishments that meet federal banking requirements.
Anchorage is among the many few crypto-native companies to obtain a nationwide belief financial institution constitution, an element that would improve the belief’s compliance posture in a regulatory surroundings nonetheless shaping its remedy of digital asset custodians.
Standing Quo Maintained for Now
Whereas the addition of Anchorage introduces new operational choices, no belongings have but been transferred. Coinbase stays absolutely answerable for present custodial capabilities, and the belief’s general construction, charge association, and funding aims stay unchanged.
The settlement’s function seems preparatory, constructing a custodial contingency plan with out altering day-to-day fund administration.
By getting ready a framework for multi-custodian help, BlackRock alerts a methodical method to operational danger whereas positioning IBIT for long-term institutional participation. This growth aligns with a lot of the neighborhood’s need for diversification of custodial relationships as a baseline normal for fiduciary accountability.

