BlackRock BUIDL vs Fidelity Crypto

BlackRock BUIDL (tokenized-treasury) and Fidelity Crypto (exchange and brokerage) serve different corners of the Bitcoin ecosystem, but the question that matters most is the same: who controls the keys? The scores are close — BlackRock BUIDL at 80/100 (B+) and Fidelity Crypto at 74/100 (B). 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 18 points toward BlackRock BUIDL (88 vs. 70). BlackRock BUIDL eliminates single points of failure in its custody architecture, while Fidelity Crypto relies on a model where one compromised entity could put your bitcoin at risk. BlackRock BUIDL's strongest advantage is in transparency (85 vs. 65), where BlackRock BUIDL's approach to proof-of-reserves and public documentation makes a measurable difference. Fidelity Crypto stands out on ease of use (85 vs. 65), reflecting Fidelity Crypto's user experience and onboarding flow.

The Custody Question

Here's the key difference: BlackRock BUIDL has no single point of failure (Multi-Institution (BNY Mellon + Securitize)), while Fidelity Crypto does (Single Custodian). This matters because a single-point-of-failure model means one compromised entity — whether through a hack, insolvency, or government action — could result in total loss of funds. History has proven this risk is not theoretical. FTX, Celsius, and BlockFi all represented single points of failure for their users.

Bottom Line

BlackRock BUIDL edges out Fidelity Crypto by 6 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 largest tokenized treasury fund ($2.5b+). blackrock as asset manager, securitize as tokenization agent, bny mellon as custodian. daily nav. multi-chain deployment across 7 networks. over trusted brand. integrated with existing fidelity accounts.. Keep in mind these platforms target different audiences — BlackRock BUIDL is built for accredited investors & institutions, while Fidelity Crypto serves traditional. One thing to watch with Fidelity Crypto: limited to three cryptocurrencies. single custodian..