Understanding Fidelity's Cryptocurrency Fund Offerings
Fidelity's cryptocurrency fund lineup has expanded significantly since the 2024 approval of spot crypto ETFs. Today, investors can choose from three primary vehicles, each with a different investment approach.
Fidelity Crypto Industry and Digital Payments ETF (FDIG)
FDIG is an equity ETF that tracks the Fidelity Crypto Industry and Digital Payments Index. Rather than holding cryptocurrencies directly, FDIG invests in publicly traded companies that derive significant revenue from cryptocurrency-related activities—including mining, blockchain technology, custody, trading, and digital payments processing[reference:0][reference:1]. The fund normally invests at least 80% of its assets in securities included in the index[reference:2]. As of June 2026, FDIG held approximately $303 million in assets across 77 holdings, with a net expense ratio of 0.39%[reference:3].
Fidelity Wise Origin Bitcoin Fund (FBTC)
FBTC is a spot Bitcoin ETF that seeks to track the performance of Bitcoin directly, as measured by the Fidelity Bitcoin Reference Rate[reference:4]. Unlike FDIG, FBTC holds actual Bitcoin rather than equity securities. The fund launched in 2024 and had grown to approximately $13.4–$14.2 billion in assets under management by mid-2026[reference:5][reference:6]. Its expense ratio is 0.25%[reference:7], making it one of the lowest-cost spot Bitcoin ETFs available.
Fidelity Ethereum Fund (FETH)
FETH is a spot Ethereum ETF that seeks to track the performance of Ether (ETH), as measured by the Fidelity Ethereum Reference Rate[reference:8]. Like FBTC, it holds the underlying cryptocurrency directly. FETH had approximately $750 million to $1.25 billion in assets under management as of mid-2026[reference:9] [reference:10], with a net expense ratio of 0.25%[reference:11].
Investment Thesis: What Problem Does Each Fund Solve?
Before evaluating any fund, it is essential to understand the investment problem it is designed to solve. Each of Fidelity's crypto offerings addresses a different investor need.
📈 FDIG: Equity Exposure to the Crypto Ecosystem
FDIG provides exposure to the businesses that power the cryptocurrency economy—miners, exchanges, custodians, and blockchain infrastructure providers[reference:12]. This approach may appeal to investors who believe that the crypto industry will grow even if individual token prices remain volatile. However, FDIG's performance is tied to equity markets and company-specific factors, not just crypto prices[reference:13].
₿ FBTC: Direct Bitcoin Exposure
FBTC offers pure, direct exposure to Bitcoin's price movements, less fund expenses. It is designed for investors who want to gain Bitcoin exposure without the operational complexities of self-custody, private key management, or exchange accounts[reference:14]. With $13.4 billion in AUM, FBTC is one of the most liquid spot Bitcoin ETFs available[reference:15].
⟠ FETH: Direct Ethereum Exposure
FETH provides direct exposure to Ethereum, the second-largest cryptocurrency by market capitalization. It offers a similar value proposition to FBTC but for the Ethereum ecosystem, which includes smart contracts, decentralized applications, and a growing layer-2 landscape [reference:16].
🔁 Combining Approaches
Some investors may choose to combine these funds—for example, using FBTC or FETH for core cryptocurrency exposure while adding FDIG for thematic equity exposure to the broader crypto industry. This combination can provide both direct price exposure and indirect exposure to industry growth.
Time Horizon: Matching Fund Choice to Your Timeline
Time horizon is one of the most critical factors in evaluating any investment, but it is particularly important for cryptocurrency-related products given their historical volatility.
Short-Term (Under 1 Year)
Cryptocurrency markets are known for extreme short-term volatility. FDIG, for example, has exhibited annualized volatility of approximately 50–60%[reference:17]. FBTC has also experienced significant drawdowns; during the 2025 US Tariff Shock, FBTC fell over 20%[reference:18]. For time horizons under one year, these funds may be unsuitable for capital that cannot tolerate substantial temporary losses.
Medium-Term (1–5 Years)
Over a 3-year horizon, FDIG has delivered annualized total returns of approximately 27.9–36.3% depending on the measurement period[reference:19][reference:20]. However, these returns have come with significant volatility. Investors with a 3- to 5-year horizon should be prepared for periods of steep decline and should consider whether they have the emotional and financial capacity to hold through drawdowns.
Long-Term (5+ Years)
Fidelity Digital Assets Research has argued that Bitcoin has acted as a hedge against monetary inflation over the long term[reference:21]. For investors with a 5- to 10-year horizon, the fundamental case for cryptocurrency exposure rests on adoption trends, institutional integration, and technological development. However, long-term does not mean guaranteed—cryptocurrency remains a highly speculative asset class.
Diversification: Equity Exposure vs. Direct Crypto Exposure
Diversification means different things for different funds. Understanding the concentration risk within each fund is essential for portfolio construction.
FDIG: Sector Concentration
FDIG's holdings are concentrated in the cryptocurrency and digital payments sector. As of mid-2026, its top holdings included Coinbase Global (11.5%), Marathon Digital Holdings (9.4%), and CleanSpark (6.9%) [reference:22]. The fund has significant exposure to North America (approximately 80%) and is heavily weighted toward financial services (55%) and technology (39%) sectors. While FDIG offers diversification within the crypto industry, it does not offer diversification across industries. The fund is classified as non-diversified[reference:25], meaning it can invest a larger percentage of its assets in a single issuer than a diversified fund.
FBTC and FETH: Single-Asset Concentration
FBTC and FETH are concentrated in a single underlying asset—Bitcoin and Ethereum, respectively. While this provides pure exposure to the asset's price movements, it offers no diversification benefit. An investor holding FBTC is effectively making a concentrated bet on Bitcoin's future price trajectory.
Diversification Across Funds
For investors seeking diversification, combining FBTC or FETH with FDIG can provide exposure to both direct cryptocurrency price movements and the broader crypto equity ecosystem. However, these asset classes are often correlated—when Bitcoin prices fall, crypto-related equities often fall as well, limiting the diversification benefit.
Valuation, Index Methodology, and Rebalancing
Understanding how each fund's underlying index is constructed—and how the fund rebalances—is essential for evaluating whether the fund will perform as expected over your time horizon.
FDIG Index Methodology
The Fidelity Crypto Industry and Digital Payments Index begins with a global universe of developed and emerging market stocks[reference:27]. The methodology screens for companies that derive at least 50% of their revenue from crypto mining, trading, digital asset exchanges, custody solutions, or blockchain technology provision[reference:28]. Weights are based on a modified average daily volume (ADV) approach, with the crypto-industry sleeve maintained at ≥60% of index weight[reference:29]. The index is rebalanced quarterly[reference:30].
FBTC and FETH Index Methodology
FBTC tracks the Fidelity Bitcoin Reference Rate, which is constructed using Bitcoin price feeds from eligible spot markets[reference:31]. The index uses a volume-weighted median price (VWMP) methodology, calculated every 15 seconds based on VWMP spot market data over rolling sixty-minute increments[reference:32]. FETH uses a similar methodology based on the Fidelity Ethereum Reference Rate[reference:33]. Both funds value their shares daily based on this reference rate methodology[reference:34].
Rebalancing and Tracking
FDIG's quarterly rebalancing means that the fund's holdings are adjusted to reflect changes in the underlying index composition. This can result in portfolio turnover—FDIG's most recent turnover rate was 79%[reference:35]—which may generate transaction costs and tax implications. FBTC and FETH, by contrast, have minimal turnover since they simply hold the underlying cryptocurrency.
Downside Scenarios: Stress-Testing the Portfolio
Evaluating downside risk is perhaps the most important—and most neglected—part of investment due diligence. Here are several scenarios to consider.
Scenario 1: Crypto Winter (Prolonged Price Decline)
In a sustained bear market for cryptocurrencies, both direct crypto funds (FBTC, FETH) and equity-based funds (FDIG) would likely suffer significant losses. However, the magnitude may differ. FDIG's equity holdings may be affected by both crypto prices and broader equity market sentiment. During the February 2026 period, FDIG returned -10.0%, slightly better than the Equity Digital Assets category average of -10.8%[reference:36].
Scenario 2: Regulatory Crackdown
Adverse regulatory actions—such as restrictions on crypto exchanges, mining operations, or digital payments—could disproportionately affect FDIG, given its exposure to companies whose business models depend on regulatory permissibility. FBTC and FETH would also be affected by regulatory actions that impact Bitcoin or Ethereum specifically, but they may be less exposed to regulatory risk affecting individual companies.
Scenario 3: Technology Risk
Fidelity Digital Assets Research has highlighted quantum computing as an emerging risk to cryptographic security[reference:37]. If quantum computing advances threaten the cryptographic algorithms underlying Bitcoin or Ethereum, the value of FBTC and FETH could be materially impacted. FDIG would also be affected indirectly, though its equity holdings might have more flexibility to adapt.
Historical Drawdown Context
FBTC experienced a decline of approximately 44% during FY2026 as of mid-year[reference:38]. This illustrates the magnitude of drawdowns that can occur even in established crypto products. Investors should not assume that "index" or "ETF" structures provide any protection against severe price declines.
Comparison Table: FDIG vs. FBTC vs. FETH
The table below summarizes the key characteristics of Fidelity's three primary cryptocurrency fund offerings. All data is indicative and subject to change.
| Characteristic | FDIG | FBTC | FETH |
|---|---|---|---|
| Underlying Asset | Crypto-related equities | Bitcoin (BTC) | Ethereum (ETH) |
| Index Tracked | Fidelity Crypto Industry & Digital Payments Index | Fidelity Bitcoin Reference Rate | Fidelity Ethereum Reference Rate |
| Expense Ratio | 0.39%[reference:40] | 0.25%[reference:41] | 0.25%[reference:42] |
| Assets Under Management | ~$303M[reference:43] | ~$13.4–14.2B[reference:44][reference:45] | ~$750M–1.25B[reference:46][reference:47] |
| Number of Holdings | ~77[reference:48] | 1 (Bitcoin) | 1 (Ethereum) |
| Diversification Type | Across crypto companies | Single asset | Single asset |
| Volatility (Approx.) | 50–60% annualized[reference:49] | ~8–10% (comparable to BTC) | ~10–20% (comparable to ETH) |
| Portfolio Turnover | 79%[reference:50] | Minimal | Minimal |
| Inception | April 19, 2022[reference:51] | 2024[reference:52] | July 22, 2024[reference:53] |
Note: All figures are approximate and subject to change. Verify current data directly from Fidelity's official fund pages before making investment decisions.
Practical Evaluation Checklist
Before investing in any Fidelity cryptocurrency fund, consider working through the following checklist.
- ✔ Clarify your investment objective: Are you seeking direct crypto price exposure, equity exposure to the crypto industry, or a combination?
- ✔ Assess your time horizon: Can you hold through a 40–50% drawdown without needing to sell? If not, these funds may not be suitable.
- ✔ Review the fund's prospectus: Read the summary prospectus available at fundresearch.fidelity.com/prospectus/sec[reference:54].
- ✔ Understand the fee structure: Compare expense ratios (0.39% for FDIG, 0.25% for FBTC and FETH) and consider how fees compound over time.
- ✔ Evaluate portfolio concentration: For FDIG, review the top 10 holdings and sector exposures. For FBTC and FETH, understand single-asset concentration risk.
- ✔ Consider tax implications: FDIG's 79% turnover may generate capital gains distributions. FBTC and FETH have minimal turnover but may still generate taxable events upon sale.
- ✔ Stress-test downside scenarios: How would your portfolio perform in a crypto winter, regulatory crackdown, or technology disruption scenario?
- ✔ Consult a qualified professional: This checklist is not a substitute for personalized financial, legal, or tax advice. Consult appropriate professionals.
Example Scenario: Evaluating FDIG for a 5-Year Horizon
Investor profile: Maria is a 40-year-old professional with a diversified portfolio of global equities and bonds. She has a 5-year time horizon for a portion of her portfolio and is considering allocating 5% to FDIG.
- Objective check: Maria wants exposure to the crypto industry's growth without the complexity of self-custody or direct crypto trading. FDIG aligns with this objective.
- Time horizon assessment: Maria confirms she will not need this capital for at least 5 years and can tolerate a 50% drawdown.
- Diversification review: Maria examines FDIG's top holdings and notes concentration in mining and exchange companies. She decides this concentration is acceptable given her broader portfolio diversification.
- Cost evaluation: At 0.39%, FDIG's expense ratio is higher than FBTC's 0.25%, but Maria values the equity exposure and accepts the cost.
- Downside scenario: Maria models a scenario where Bitcoin falls 60% and crypto equities fall 50%. She confirms she can hold through this scenario.
- Decision: Maria proceeds with a 5% allocation, documenting her rationale and setting a calendar reminder to review the position annually.
Outcome: Maria has a clear investment thesis, understands the risks, and has a plan for monitoring the position over her 5-year time horizon.
Common Mistakes
Even sophisticated investors can make errors when evaluating cryptocurrency index funds. Here are some of the most common pitfalls.
FDIG holds equities, not cryptocurrencies. Its performance is tied to stock prices and company earnings, not just crypto prices. An investor seeking direct Bitcoin exposure should choose FBTC, not FDIG.
FDIG offers diversification within the crypto industry, but the industry itself is highly correlated and volatile. Diversification across crypto assets does not provide the same risk reduction as diversification across uncorrelated asset classes.
FDIG's 79% turnover rate[reference:55] can generate capital gains distributions and tax liabilities, even if you do not sell your shares. FBTC and FETH have minimal turnover, reducing this risk.
The prospectus contains essential information about investment strategies, risks, and fees. Relying solely on third-party summaries or marketing materials can lead to incomplete understanding[reference:56].
Past performance, especially over short periods, is not indicative of future results. FDIG's strong 3-year returns[reference:57] should not be extrapolated forward without considering the underlying risks and market conditions.
Crypto funds can grow to dominate a portfolio if left unchecked. Regular rebalancing is essential to maintain your target allocation and risk profile.
Risk Warning
Important Disclaimer
The information presented in this guide is for educational and informational purposes only. It does not constitute financial, legal, tax, or investment advice. Cryptocurrency-related products are highly speculative, carry substantial risk, and may not be suitable for all investors.
Key risks include, but are not limited to:
- Price volatility: Cryptocurrencies and crypto-related equities can experience extreme price swings, including total loss of investment[reference:58].
- Regulatory risk: Changes in laws or regulations can materially impact the value of crypto assets and related equities.
- Liquidity risk: During market stress, it may be difficult to buy or sell fund shares at favorable prices.
- Technology risk: Cryptographic vulnerabilities, including quantum computing threats, could undermine the value of crypto assets[reference:59].
- Concentration risk: FBTC and FETH are concentrated in single assets. FDIG is concentrated in a single industry sector.
- Counterparty and custody risk: Although Fidelity employs institutional-grade custody, the funds are still subject to operational and counterparty risks.
Before investing, you should:
- Read the fund's prospectus and statement of additional information carefully[reference:60].
- Consult with qualified financial, legal, and tax professionals regarding your specific circumstances.
- Verify all current data—including expense ratios, AUM, holdings, and performance—directly from Fidelity's official sources.
- Understand that you may lose some or all of your investment.
By using this guide, you acknowledge that you are solely responsible for your own investment decisions and that this content does not constitute personalized advice.