Fidelity Wise Origin Bitcoin Fund (FBTC) Review: Deep Analysis
FBTC is the second-largest spot Bitcoin ETF and the only mainstream product with in-house custody. Why Fidelity Digital Assets matters, what the 0.25% fee buys, and where FBTC fits.
TL;DR. Fidelity's Wise Origin Bitcoin Fund (FBTC) is the second-largest US spot Bitcoin ETF — roughly $22B AUM, 0.25% expense ratio, identical headline fee to IBIT. The structural differentiator: FBTC is custodied in-house by Fidelity Digital Assets, not at Coinbase. For investors who already use Fidelity (40M+ US accounts) and for those seeking custody diversification away from Coinbase, FBTC is the obvious choice. For pure liquidity and institutional consolidation, IBIT remains tighter.
The basics
| Field | Value |
|---|---|
| Ticker | FBTC |
| Exchange | Cboe BZX |
| Inception | 11 Jan 2024 |
| Sponsor | Fidelity Service Company, Inc. |
| Custodian | Fidelity Digital Asset Services, LLC (in-house) |
| Administrator | The Bank of New York Mellon |
| Expense ratio | 0.25% |
| AUM (Apr 2026) | ~$22 billion |
| Average daily volume (Q1 2026) | ~8 million shares ($320M notional) |
Why in-house custody matters
Eight of the eleven US spot Bitcoin ETFs use Coinbase Custody Trust. FBTC is one of the three exceptions (the others: HODL on Gemini, BRRR on a smaller custodian). Fidelity Digital Asset Services has held an NYDFS limited-purpose trust charter since 2019 and runs cold-storage infrastructure that was originally built for institutional clients of Fidelity's prime brokerage business — long before the ETF approvals.
This is a meaningful structural diversifier. The Coinbase concentration risk is the single most-discussed systemic vulnerability of the spot Bitcoin ETF category — covered in how Bitcoin ETF custody actually works. FBTC's in-house custody removes that exposure entirely.
The custody architecture itself is similar in spirit to Coinbase: cold-storage, multi-signature key schemes, segregated client wallets, commercial insurance. The differences are in operational independence and regulatory chain. For investors who want a fundamentally different custodian — not just a different name on the same desk — Fidelity is the clean answer.
Fees and tracking
FBTC charges 0.25% flat — identical to IBIT's post-waiver rate. No introductory waiver was offered at launch, so FBTC paid the full headline from day one. Total expense to a $100k holder: $250/year, compounding to roughly $2,471 over a decade if BTC is flat (see Bitcoin ETF expense ratios compared for the full math).
Tracking quality is excellent but a step behind IBIT:
- Average bid-ask spread (US hours): 2–3 basis points.
- 30-day average premium/discount to NAV: ±5 bp.
- One-year tracking error vs spot BTC (2024): within −18 bp.
The 1–2 bp spread gap to IBIT reflects volume differences (FBTC trades roughly a quarter of IBIT's daily share volume). For typical retail orders the gap is invisible; for institutional block trades it may matter.
The Fidelity ecosystem advantage
If you are one of Fidelity's 40+ million US brokerage account holders, FBTC integrates cleanly with the rest of your investment infrastructure:
- Available in all account types — taxable, Roth IRA, traditional IRA, SEP-IRA, 401(k) through Fidelity's plan administration arm.
- Consolidated tax reporting on one 1099 with the rest of your Fidelity holdings.
- Same login, same statements, same customer service infrastructure.
- Eligible for Fidelity's automatic rebalancing and advisor-managed portfolios.
None of this is unique to FBTC vs other ETFs — IBIT and ARKB are also available at Fidelity. But the consolidated experience inside the Fidelity ecosystem is smoother for the issuer's own product.
Custody risk: the FBTC-specific concern
The flip side of in-house custody is concentration of legal entities. Fidelity Service Company is the sponsor; Fidelity Digital Asset Services is the custodian; Fidelity Brokerage Services manages the relationship with retail. All three are subsidiaries of FMR LLC.
In a Coinbase-custodied ETF, the sponsor (BlackRock) and custodian (Coinbase) are independent companies, each subject to its own regulator. If one fails the other is unaffected at the entity level. With FBTC the chain is internally consistent — a benefit for operational integration but a single point of corporate-parent failure (improbable but worth noting).
The trust structure itself is still bankruptcy-remote: bitcoin held in trust belongs to shareholders, not to FMR creditors. The risk is more about coordinated regulatory action against an integrated group than about typical custody failure.
Holders
13F filings show a different holder mix than IBIT:
- Heavier representation of Fidelity's own wealth-management platform (FidelityCharitable, advisor channel).
- Strong allocations from corporate treasury teams that already custody with Fidelity for traditional securities.
- Lower hedge-fund concentration than IBIT — Fidelity's prime brokerage relationships skew long-only.
Roughly 35% of FBTC's institutional holders are also IBIT holders. The category is in maturation phase where serious allocators split exposure across two issuers for risk diversification — see Bitcoin ETF 13F filings explained.
The case for FBTC
- Non-Coinbase custody. The single best reason. Hedge against the category's biggest concentration risk.
- Fidelity ecosystem. If you live there already, the experience is best-in-class.
- Reputational stability. Fidelity's 77-year history and family ownership make it among the most operationally conservative US financial firms.
- Strong tracking. Within 1–2 bp of IBIT on the metrics that matter.
The case against FBTC
- Not the cheapest. Same 0.25% as IBIT but 6 bp more than Franklin EZBC.
- Smaller book. Less liquid than IBIT for institutional-size orders.
- FMR concentration. Sponsor and custodian under the same corporate parent.
FBTC vs IBIT — the headline question
This deserves its own article — IBIT vs FBTC: which is better — and the short answer is: identical fee, identical tax treatment, identical access; choose IBIT for liquidity, FBTC for custody diversification. Many institutional allocators hold both.
FAQ
Who custodies the bitcoin behind FBTC?
Fidelity Digital Asset Services, LLC — an in-house Fidelity subsidiary with an NYDFS limited-purpose trust charter. This is one of the three US spot Bitcoin ETFs not custodied at Coinbase Custody Trust (the others: VanEck HODL on Gemini, Valkyrie BRRR on a smaller third party).
What is the expense ratio of Fidelity FBTC?
0.25% per year. Fidelity did not offer a launch-period fee waiver; the rate has been flat since inception in January 2024. Identical headline fee to BlackRock IBIT.
Is FBTC available in a Roth IRA?
Yes, in all standard tax-advantaged account types: Roth IRA, traditional IRA, SEP-IRA, and 401(k) plans where the menu allows. Fidelity supports FBTC across its full account suite.
What's the main difference between FBTC and IBIT?
Both have a 0.25% fee and similar institutional access. The structural difference is custody: FBTC uses Fidelity Digital Assets (in-house); IBIT uses Coinbase Custody Trust (same as ~80% of the category). FBTC trades at lower volume and slightly wider spreads. Choose IBIT for liquidity, FBTC for custody diversification.
How big is FBTC compared to IBIT?
FBTC holds approximately $22 billion AUM (16% of category) versus IBIT at ~$70 billion (52%). FBTC is the clear #2 product and the largest non-Coinbase-custodied option.
Sources and further reading
- Fidelity Wise Origin Bitcoin Fund prospectus — sec.gov/Archives/edgar.
- Fidelity Digital Asset Services NYDFS charter disclosure — dfs.ny.gov.
- Internal: BlackRock IBIT review, IBIT vs FBTC, How Bitcoin ETF custody works, Expense ratios compared.
