Fidelity Digital Assets vs Komainu — Head-to-Head Custody Comparison
An independent, data-driven comparison of Fidelity Digital Assets and Komainu across security, insurance, fees, regulatory compliance, and more.
Verdict
Quick Verdict
Fidelity Digital Assets scores 8.4 vs Komainu's 7.0. Fidelity Digital Assets leads in 7 of 8 categories.
Fidelity Digital Assets is better suited for Institutional investors, RIAs, Family offices. Komainu is better suited for Japanese institutions, European institutions, Banks.
Scores
Score Comparison
Weighted scores across all 8 custody criteria.
| Criterion | Weight | Fidelity Digital Assets | Komainu | Winner |
|---|---|---|---|---|
| Security | 20% | 9.5 | 8.5 | Fidelity Digital Assets |
| Insurance | 15% | 9.5 | 7.0 | Fidelity Digital Assets |
| Regulatory | 15% | 10.0 | 8.0 | Fidelity Digital Assets |
| Fee Transparency | 10% | 5.0 | 4.5 | Fidelity Digital Assets |
| Track Record | 15% | 9.0 | 6.5 | Fidelity Digital Assets |
| Withdrawal Flexibility | 10% | 7.0 | 6.5 | Fidelity Digital Assets |
| Reporting & Audit | 10% | 9.0 | 7.5 | Fidelity Digital Assets |
| Counterparty Diversification | 5% | 2.0 | 3.5 | Komainu |
| Overall Score | 100% | 8.4 | 7 | Fidelity Digital Assets |
Visual
Score Radar
Visual overlay of Fidelity Digital Assets and Komainu across all categories.
Deep Dive
Category-by-Category Analysis
A deeper look at how each provider performs in every scoring criterion.
Security (9.5 vs 8.5)
Fidelity Digital Assets uses HSM-based cold storage key management with Vast majority cold in cold storage and regular penetration testing. Compliance: SOC 2 Type 2. Incident history: No incidents.
Komainu uses Ledger Vault enterprise custody key management with Majority cold in cold storage and regular penetration testing. Compliance: SOC 2. Incident history: No incidents.
Insurance (9.5 vs 7.0)
Fidelity Digital Assets offers Up to $1B reported via Major insurance carriers. One of the highest insurance coverage amounts in the industry. Exact terms available to institutional clients.
Komainu offers Institutional coverage via Via Nomura/partners. Backed by Nomura — Japan's largest investment bank.
Regulatory (10.0 vs 8.0)
Fidelity Digital Assets holds New York State Trust Charter (Fidelity Digital Assets, National Association) and is a qualified custodian operating in United States. Fidelity Digital Assets, National Association is a national trust bank chartered by the OCC. Parent company Fidelity Investments is one of the most regulated financial institutions globally.
Komainu holds JFSC registered (Jersey) and is not a qualified custodian operating in Jersey / Asia / Europe. Regulated in Jersey. Nomura provides institutional credibility.
Fee Transparency (5.0 vs 4.5)
Fidelity Digital Assets charges Contact for pricing (competitive institutional rates) in annual custody fees with 1% spread on Fidelity Crypto retail platform per transaction. Retail Fidelity Crypto charges 1% spread. Institutional custody pricing is separate and negotiable.
Komainu charges Custom in annual custody fees with Custom per transaction. Nomura + Ledger + CoinShares joint venture.
Track Record (9.0 vs 6.5)
Fidelity Digital Assets was founded in 2018 and is headquartered in Boston, MA. AUM: Not publicly disclosed (Fidelity overall: $14T+). Incident history: No incidents.
Komainu was founded in 2018 and is headquartered in St. Helier, Jersey. AUM: Not publicly disclosed. Incident history: No incidents.
Withdrawal Flexibility (7.0 vs 6.5)
Fidelity Digital Assets withdrawal fees: Contact for pricing. Minimum account: Institutional only — contact for details. Supported assets: Bitcoin, Ethereum.
Komainu withdrawal fees: Network fees. Minimum account: Institutional only. Supported assets: Bitcoin, Ethereum, Multiple assets.
Reporting & Audit (9.0 vs 7.5)
Fidelity Digital Assets: SOC compliance is SOC 2 Type 2. As a qualified custodian, it meets SEC reporting requirements.
Komainu: SOC compliance is SOC 2. Not classified as a qualified custodian.
Counterparty Diversification (2.0 vs 3.5)
Fidelity Digital Assets is a qualified custodian provider. Key management: Proprietary cold storage using HSMs in secure, geographically distributed facilities..
Komainu is a qualified custodian provider. Key management: Ledger Vault technology with Nomura institutional standards..
Fees
Fee Comparison
Side-by-side fee breakdown for Fidelity Digital Assets and Komainu.
| Fee Type | Fidelity Digital Assets | Komainu |
|---|---|---|
| Setup Fee | Contact for pricing | Custom |
| Annual Custody | Contact for pricing (competitive institutional rates) | Custom |
| Transaction | 1% spread on Fidelity Crypto retail platform | Custom |
| Withdrawal | Contact for pricing | Network fees |
Fidelity Digital Assets: Retail Fidelity Crypto charges 1% spread. Institutional custody pricing is separate and negotiable.
Komainu: Nomura + Ledger + CoinShares joint venture.
Features
Feature Comparison
Checklist of features across both providers.
| Feature | Fidelity Digital Assets | Komainu |
|---|---|---|
| 24/7 operational support | ✓ | ✗ |
| Asia/Europe institutional focus | ✗ | ✓ |
| Bank-grade compliance | ✗ | ✓ |
| CoinShares crypto expertise | ✗ | ✓ |
| Dedicated institutional trading desk | ✓ | ✗ |
| Fidelity Wise Origin Bitcoin Fund (FBTC) custody | ✓ | ✗ |
| Governance frameworks | ✗ | ✓ |
| Institutional-grade cold storage | ✓ | ✗ |
| Integration with Fidelity's broader financial ecosystem | ✓ | ✗ |
| Ledger Vault technology | ✗ | ✓ |
| Nomura-backed | ✗ | ✓ |
| Regulatory reporting | ✓ | ✗ |
Recommendation
Who Should Choose Which?
Fidelity Digital Assets is better if you…
- ✓Are a institutional investors
- ✓Are a rias
- ✓Are a family offices
- ✓Are a pension funds
- ✓Want: Backed by Fidelity — $14T+ AUM parent company
- ✓Want: Up to $1B insurance coverage — industry-leading
- ✓Want: National trust bank charter (OCC regulated)
Komainu is better if you…
- ✓Are a japanese institutions
- ✓Are a european institutions
- ✓Are a banks
- ✓Are a asset managers
- ✓Want: Nomura backing — tier-1 investment bank
- ✓Want: Ledger's proven hardware security
- ✓Want: CoinShares' crypto market expertise
FAQ
Frequently Asked Questions
Is Fidelity Digital Assets or Komainu better for Bitcoin custody?
Fidelity Digital Assets scores 8.4 vs 7.0 in our weighted Custody Score. Fidelity Digital Assets leads in 7 of 8 scoring categories. However, the best choice depends on your specific needs: Fidelity Digital Assets is best for Institutional investors and RIAs, while Komainu suits Japanese institutions and European institutions.
What is the difference between Fidelity Digital Assets and Komainu?
Fidelity Digital Assets is a qualified custodian provider, while Komainu is a qualified custodian provider. Fidelity Digital Assets excels in Regulatory, whereas Komainu is strongest in Security.
How do Fidelity Digital Assets and Komainu fees compare?
Fidelity Digital Assets charges Contact for pricing (competitive institutional rates) annual custody fees with 1% spread on Fidelity Crypto retail platform transaction fees. Komainu charges Custom annual custody fees with Custom transaction fees.
Which is more secure, Fidelity Digital Assets or Komainu?
Fidelity Digital Assets scores 9.5/10 for security while Komainu scores 8.5/10. Fidelity Digital Assets uses HSM-based cold storage key management, and Komainu uses Ledger Vault enterprise custody.
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