What is the expense ratio and how do ARKB and FBTC compare?

An expense ratio represents the annual fee charged by a fund to cover its operational costs, expressed as a percentage of your investment. For these funds, ARKB has a 0.21% expense ratio, while FBTC charges 0.25%. Although the difference is just 0.04 percentage points, lower fees generally improve net returns over time by reducing the drag on the fund's assets. This small gap means that for every £10,000 invested, the cost difference amounts to £4 per year. Investors often weigh these minor fee variations against other factors like issuer reputation and liquidity when choosing between spot Bitcoin ETFs, as fees are a predictable, recurring cost that compounds over long holding periods.

How do spot Bitcoin ETFs provide exposure to the cryptocurrency?

Spot Bitcoin ETFs like ARKB and FBTC hold actual Bitcoin in custody rather than using derivatives or futures contracts. When you buy shares of these funds, you gain indirect ownership of the underlying cryptocurrency, with the share price closely mirroring the current market price of Bitcoin. Both funds launched on 10 January 2024, offering this direct exposure within a standard regulated ETF wrapper. This structure allows investors to access Bitcoin through traditional brokerage accounts without managing digital wallets or exchanges. The primary mechanism involves the fund accumulating Bitcoin and issuing shares that represent fractional ownership of those holdings, providing a familiar investment vehicle for accessing digital asset markets while adhering to established regulatory frameworks and custodial standards.

Which fund might suit an investor prioritising lower costs?

For investors focusing on minimising holding costs, ARKB presents a slightly more economical option with its 0.21% expense ratio compared to FBTC's 0.25%. Over a ten-year period, this 0.04 percentage point difference results in lower cumulative fees, potentially leaving more capital invested. However, cost alone does not determine suitability. ARKB is managed by ARK and 21Shares, combining specialised digital asset expertise with competitive pricing. While the fee advantage is clear, investors should consider whether other attributes, such as the issuer's operational capacity or trading liquidity, might offset the marginal cost savings. The decision depends on whether the small fee reduction is significant enough to outweigh other qualitative factors in the investment thesis for each respective fund.

Which fund is typically associated with higher liquidity and scale?

FBTC is often considered suitable for investors prioritising scale and liquidity. With net assets of $14.0 billion, it manages substantially larger assets than ARKB's $2.5 billion base. This greater scale likely provides deeper market liquidity, potentially resulting in tighter bid-ask spreads and easier execution for large trades. Backed by Fidelity, the fund also benefits from the strong institutional reputation of a major established asset manager. For investors concerned about trading ease or the ability to exit positions quickly without significant price impact, FBTC's size offers distinct practical advantages. The larger asset base can also enhance the fund's operational efficiency, though investors should always verify current trading volumes and spreads when evaluating liquidity for specific transaction sizes.

How does dividend yield affect total return for these Bitcoin ETFs?

Both ARKB and FBTC report a dividend yield of 0.00%, meaning neither fund distributes regular income to shareholders. This is standard for spot Bitcoin ETFs, as Bitcoin itself does not generate yield through interest or dividends. Investors receive no periodic cash distributions, so their total return relies entirely on changes in the price of Bitcoin. This structure contrasts with bond ETFs or income-focused equity funds, where dividends contribute significantly to overall returns. The absence of distributions means that all performance depends on capital appreciation. For investors seeking income, these funds are not suitable replacements for yield-bearing assets. The zero yield reflects the nature of the underlying asset rather than a deficiency in the fund's management or structure, emphasising pure price exposure.

What is the significance of the shared top-10 holdings data?

The comparison data indicates that there are no shared top-10 holdings among the listed top holdings for ARKB and FBTC. In the context of spot Bitcoin ETFs, this detail requires careful interpretation. Since both funds primarily hold Bitcoin, the 'top holdings' section may not reflect the underlying asset in the same way as traditional equity ETFs. For spot cryptocurrency ETFs, the fund's value is derived almost entirely from the price of Bitcoin rather than a basket of individual securities. The lack of listed shared holdings suggests that transparency into specific internal operational holdings or benchmark composition is not available for either fund, which is common for these newer structures. Investors should understand that this data point highlights the unique structure of spot crypto ETFs rather than a divergence in their primary asset exposure.

What does 'Index tracked' being not available imply for these funds?

For both ARKB and FBTC, the 'Index tracked' field is listed as not available. This reflects the nature of spot Bitcoin ETFs, which do not track a traditional benchmark index like the S&P 500. Instead, they aim to replicate the price of Bitcoin itself. Traditional ETFs often use indices to define their investment universe, but spot crypto ETFs are single-asset vehicles. The absence of a tracked index is not an error but rather a characteristic of this fund category. Investors should focus on the direct price correlation between the ETF share price and the spot price of Bitcoin. Since there is no underlying basket of stocks to mirror an index, the performance of these funds is directly tied to the market value of Bitcoin, making the lack of index data a standard feature rather than a limitation of transparency.

How does inception date impact the historical performance record?

Both ARKB and FBTC launched on 10 January 2024, meaning they have identical operational histories since their inception. This shared start date implies that their track records are comparable in terms of duration, as both have experienced the same market cycles since their listing. For newer ETFs, a shorter history limits the ability to assess performance consistency across multiple market conditions. Investors evaluating these funds cannot rely on long-term historical data to distinguish them based on past returns. Instead, they must focus on structural differences such as fees, assets under management, and issuer reputation. The identical inception date neutralises time-in-market as a differentiating factor, directing attention toward operational attributes and the strategic approach of each asset manager in managing spot Bitcoin exposure within a regulated framework.

What role do net assets play in selecting between ARKB and FBTC?

Net assets represent the total market value of the fund's holdings. FBTC holds $14.0 billion in net assets, while ARKB holds $2.5 billion. Larger funds like FBTC often benefit from economies of scale, which can stabilise expense ratios and improve liquidity. Higher liquidity typically means it is easier to buy or sell shares at desired prices without significantly affecting the market price. Smaller funds may experience wider spreads or lower trading volumes. While ARKB's smaller size does not inherently make it a worse option, it may face higher relative operational costs or less trading activity. Investors should weigh the liquidity benefits of FBTC's larger base against ARKB's slightly lower fee structure, considering how trading frequency and order size might interact with each fund's specific characteristics in practice.

How does the expense ratio difference compound over time?

The expense ratio difference between ARKB (0.21%) and FBTC (0.25%) amounts to 0.04 percentage points. While this seems minimal, fees reduce the compounding effect of investment returns. For example, if Bitcoin appreciates by 10% annually, the net return for ARKB would be approximately 9.79%, compared to 9.75% for FBTC. Over 20 years, this 0.04% annual difference results in a noticeably lower total value for the more expensive fund, assuming identical asset growth. The impact is more pronounced in volatile assets where absolute returns may be high but fees are always deducted. Investors holding for long periods may see the cumulative fee savings favour ARKB, while those trading frequently might prioritise the liquidity potentially offered by FBTC's larger asset base.

Why is transparency limited regarding sector weights for these ETFs?

For both ARKB and FBTC, sector weights are listed as not available. This is because spot Bitcoin ETFs do not hold a diversified portfolio of equities across different sectors like technology, healthcare, or finance. Instead, their entire exposure is concentrated in a single digital asset. Traditional ETFs report sector weights to help investors understand diversification, but this concept is irrelevant for single-asset commodity or cryptocurrency funds. The absence of sector weight data is not a transparency issue but a reflection of the fund's simple structure. Investors seeking diversification across economic sectors should look to broader index funds. For these Bitcoin ETFs, the relevant metric is the correlation with Bitcoin's price, not internal sector allocations, which are non-existent by design.

How do management expertise and reputation influence fund selection?

ARKB is managed by ARK and 21Shares, leveraging specialised digital asset expertise. FBTC is backed by Fidelity, a major established asset manager with a strong institutional reputation. ARK's approach combines innovative asset management with 21Shares' specific crypto infrastructure, potentially appealing to investors who value focused expertise in digital assets. Conversely, Fidelity's extensive global infrastructure and long-standing regulatory compliance record may attract investors prioritising traditional institutional safety and operational stability. Neither approach is objectively superior; it depends on investor preference for specialised crypto-native management versus broad institutional reliability. This qualitative factor often helps investors decide between funds with similar structural metrics, as the issuer's operational track record can influence confidence in handling custody, compliance, and market fluctuations for spot Bitcoin assets.

ARKB vs FBTC

Two funds, one decision: we compare cost, performance and what each ETF actually holds in September 2026.

Compare ARK 21shares Bitcoin Etf Ben Int (ARKB) and Fidelity Wise Origin Bitcoin Shares Of Beneficial Interest (FBTC). This page examines fees, holdings, dividends and how each fund tracks its market. Note: expense ratios are 0.21% and 0.25%. Educational content, not financial advice.

Fund Snapshot

Key Fund Metrics

ARKB

Metric

FBTC

0.21%

Expense Ratio

0.25%

0.00%

Dividend Yield

0.00%

$2.49B

Net Assets

$14.03B

Holdings

Jan 10, 2024

Inception Date

Jan 10, 2024

–

Index Tracked

–

Digital Assets

Fund Category

Digital Assets

ARKB costs about $4.00 less per year for every $10,000 invested.

Shared Top Holdings

These funds do not share any of their top holdings.

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Investment Analysis

ARKB

Pros

ARKB charges a 0.21% expense ratio, which is four basis points lower than Fidelity's 0.25% fee structure.
Managed by ARK and 21Shares, it leverages specialised digital asset expertise alongside a competitive cost structure.
It launched on 10 January 2024, offering direct spot Bitcoin exposure within a standard regulated ETF wrapper.

Considerations

Net assets stand at $2.5 billion, substantially smaller than FBTC's $14.0 billion base, potentially reducing trading liquidity.
The dividend yield is 0.00%, so investors receive no income and remain fully exposed to Bitcoin volatility.
Index tracked and top holdings data are not available, limiting transparency about the underlying benchmark and exact basket composition.

FBTC

Pros

FBTC manages $14.0 billion in net assets, providing considerably greater scale and likely deeper market liquidity than ARKB.
Backed by Fidelity, the fund benefits from the strong institutional reputation of a major established asset manager.
It launched on 10 January 2024, delivering direct spot Bitcoin exposure within a standard regulated ETF wrapper.

Considerations

The expense ratio of 0.25% is four basis points higher than ARKB's fee, making it marginally more expensive to hold.
With a 0.00% dividend yield, investors receive no periodic income and bear full exposure to Bitcoin price swings.
Index tracked and top holdings information are not available, reducing visibility into the precise underlying benchmark and composition.

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About ARKB and FBTC

ARKB (ARKB)

Ticker ARKB is listed but the company or fund name was not provided. Ticker symbols can represent different instruments (ETFs, trusts, or individual equities) across exchanges — confirm the exact listing before making decisions. Key things for an investor to check: the issuer, the fund or company prospectus, primary holdings, investment strategy, expense ratio or fees, liquidity (average daily volume and bid‑ask spreads), dividend policy and tax treatment, and recent performance versus relevant benchmarks. Consider concentration risk, sector exposure and how the position would fit your risk profile and time horizon. Past performance is not a reliable guide to future returns and values can go down as well as up. This is general, educational information only and not personal advice; consult a regulated financial adviser if you need tailored recommendations or are unsure whether this instrument suits your circumstances.

FBTC (FBTC)

FBTC is presented here only as a ticker symbol; no issuer or company details were provided. Before considering any exposure, investors should confirm what asset FBTC represents — an ordinary share, an exchange-traded product, a fund, or something else — and consult the official prospectus or issuer website. Key things to check include the underlying holdings, management or custody arrangements, fees, listing venue and liquidity. If FBTC is linked to digital assets or cryptocurrencies, expect materially higher volatility, 24/7 market behaviour and evolving regulatory treatment. Assess how it fits your time horizon, risk tolerance and diversification needs. Costs, tax treatment and operational risks can materially affect returns. This summary is educational only and not personalised advice; values can fall as well as rise, and past performance is not a reliable indicator of future results. Seek professional advice if you are unsure about suitability.

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Which Baskets Do They Appear In?

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ARKB vs FBTC

Fund Snapshot