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Head-to-Head Comparison

ARK 21Shares (ARKB) vs Hashdex Bitcoin ETF (DEFI)

ARK 21Shares (ARKB) leads overall with a score of 68/100. ARK 21Shares (ARKB) wins in 4 categories, Hashdex Bitcoin ETF (DEFI) wins in 1.
Custody & SecurityEase of UseFeesFeaturesTransparencySupportARK 21Shares (ARKB)Hashdex Bitcoin ETF (DEFI)
Category
ARK 21Shares (ARKB)
B-
Hashdex Bitcoin ETF (DEFI)
C
Overall Score
68
60
Custody & Security
35% weight
40
55
Ease of Use
20% weight
85
75
Fees
15% weight
90
68
Features
10% weight
40
30
Transparency
10% weight
75
65
Support
10% weight
70
70
Category Breakdown
Custody & Security
35% of overall score
40
ARK 21Shares (ARKB)
vs
55
Hashdex Bitcoin ETF (DEFI)
Ease of Use
20% of overall score
85
ARK 21Shares (ARKB)
vs
75
Hashdex Bitcoin ETF (DEFI)
Fees
15% of overall score
90
ARK 21Shares (ARKB)
vs
68
Hashdex Bitcoin ETF (DEFI)
Features
10% of overall score
40
ARK 21Shares (ARKB)
vs
30
Hashdex Bitcoin ETF (DEFI)
Transparency
10% of overall score
75
ARK 21Shares (ARKB)
vs
65
Hashdex Bitcoin ETF (DEFI)
Support
10% of overall score
70
ARK 21Shares (ARKB)
vs
70
Hashdex Bitcoin ETF (DEFI)
Fee Comparison
ARK 21Shares (ARKB)
0.21% expense ratio
Min: $0
Hashdex Bitcoin ETF (DEFI)
0.90% expense ratio
Min: $0
Our Analysis

ARK 21Shares (ARKB) vs Hashdex Bitcoin ETF (DEFI): What the Data Shows

ARK 21Shares (ARKB) and Hashdex Bitcoin ETF (DEFI) both operate in the ETF and fund space, but they take fundamentally different approaches to how your bitcoin is held. The scores are close — ARK 21Shares (ARKB) at 68/100 (B-) and Hashdex Bitcoin ETF (DEFI) at 60/100 (C). When the gap is this narrow, the details matter: custody model, single points of failure, and the fine print on fees.

Where Each Platform Wins

Custody and security — the most heavily weighted category in our methodology at 35% — tilts 15 points toward Hashdex Bitcoin ETF (DEFI) (55 vs. 40). Both platforms carry single-point-of-failure risk, but Hashdex Bitcoin ETF (DEFI) mitigates it more effectively through its ETF — BitGo Custody approach. On fees, ARK 21Shares (ARKB) wins by 22 points. ARK 21Shares (ARKB) charges 0.21% expense ratio compared to 0.90% expense ratio at Hashdex Bitcoin ETF (DEFI). Over a multi-year holding period, fee differences compound — a point worth considering for long-term accumulators.

The Custody Question

Neither ARK 21Shares (ARKB) nor Hashdex Bitcoin ETF (DEFI) has fully eliminated single-point-of-failure risk. ARK 21Shares (ARKB) uses ETF — Coinbase Custody and Hashdex Bitcoin ETF (DEFI) uses ETF — BitGo Custody. Both models leave your bitcoin exposed to custodial concentration risk — if that one entity fails, your bitcoin could be locked, seized, or lost. For long-term holders, this is the most important factor to weigh.

Bottom Line

ARK 21Shares (ARKB) edges out Hashdex Bitcoin ETF (DEFI) by 8 points. It's a close call, and the right choice depends on your specific situation — how much bitcoin you're holding, how often you need access, and whether you prioritize cathie wood/ark branding. lower expense ratio. innovation-focused audience. over bitgo as custodian (not coinbase). brazil-based issuer with global reach.. Keep in mind these platforms target different audiences — ARK 21Shares (ARKB) is built for growth investors, while Hashdex Bitcoin ETF (DEFI) serves global investors. One thing to watch with Hashdex Bitcoin ETF (DEFI): higher expense ratio. smaller aum. less us brand recognition..

Frequently Asked Questions

Which is better, ARK 21Shares (ARKB) or Hashdex Bitcoin ETF (DEFI)?

Based on our six-category scoring methodology, ARK 21Shares (ARKB) scores higher at 68/100 compared to 60/100. The biggest differentiator is custody security, which accounts for 35% of the overall score. However, the right choice depends on your individual needs — review the category breakdown above.

Is ARK 21Shares (ARKB) safe for storing Bitcoin?

ARK 21Shares (ARKB) scored 40/100 on custody and security in our methodology. It does carry single-point-of-failure risk, meaning your bitcoin depends on one entity's security. Its custody model is classified as ETF — Coinbase Custody. Always verify these details and do your own research.

Does Hashdex Bitcoin ETF (DEFI) have a single point of failure?

Yes. Hashdex Bitcoin ETF (DEFI) uses a ETF — BitGo Custody model, which means a single compromised entity could put your bitcoin at risk. This is a structural concern for long-term holders.

What are the fees for ARK 21Shares (ARKB) vs Hashdex Bitcoin ETF (DEFI)?

ARK 21Shares (ARKB) charges 0.21% expense ratio. Hashdex Bitcoin ETF (DEFI) charges 0.90% expense ratio. ARK 21Shares (ARKB) scored 90/100 on fees versus 68/100 for Hashdex Bitcoin ETF (DEFI) in our methodology.