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ARK 21Shares (ARKB)

B-
ETF — Coinbase CustodySPOFGrowth Investors
Visit ARK 21Shares (ARKB)
By Steve L, Editorial Lead·Reviewed by Proof of Custody Editorial
·Last updated Feb 18, 2026
68
Custody & SecurityEase of UseFeesFeaturesTransparencySupport
Score Breakdown
Custody & Security35% weight
40
Ease of Use20% weight
85
Fees15% weight
90
Features10% weight
40
Transparency10% weight
75
Support10% weight
70
Assessment
Key Strength

Cathie Wood/ARK branding. Lower expense ratio. Innovation-focused audience.

Primary Risk

Single custodian (Coinbase). Smaller AUM. ARK reputation volatility.

Custody Features

Custody feature data not yet available.

Fees
0.21% expense ratio
Minimum$0
Custody Independence Standard
0 of 4 pillars met
Vendor independenceNot met
Entropy independenceNot publicly documented
Control independenceNot met
Operational independenceNot met

1 independent party or system must fail before a ARK 21Shares (ARKB) holder's bitcoin is at risk.

  • •A single institution controls the keys, so its compromise, insolvency, or unilateral action is sufficient to put funds at risk.
How this is assessed →
Insurance

ARK 21Shares (ARKB)'s custody insurance is not publicly disclosed.

Frequently asked questions
Is ARK 21Shares (ARKB) safe?+

ARK 21Shares (ARKB) uses a etf — coinbase custody model and scores 68/100 in our independent review, including 40/100 on custody security. One institution can move funds, which is a single point of failure. Safety depends on your priorities; see the full score breakdown above.

Is my bitcoin insured at ARK 21Shares (ARKB)?+

ARK 21Shares (ARKB)'s custody insurance is not publicly disclosed in a form we can verify. Where it exists, custody insurance covers specific named events up to shared limits and does not cover price loss. Confirm coverage in writing before relying on it.

What happens to my bitcoin if ARK 21Shares (ARKB) fails?+

Because ARK 21Shares (ARKB) holds custody through a single institution, recovery in a failure would run through that institution's bankruptcy or resolution process and depends on whether assets were segregated and properly titled. This is the concentration risk of single-custodian models.

Does ARK 21Shares (ARKB) support inheritance?+

ARK 21Shares (ARKB) does not advertise a dedicated inheritance or beneficiary feature in the data we track. Confirm current options with the provider, since custody inheritance handling changes.

Compare

ARK 21Shares (ARKB) vs Others

vs OnrampA
90/100
vs Onramp FinanceA
89/100
vs UnchainedA-
85/100
vs Onramp LendingA-
84/100