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To compare Bitcoin and Ether ETFs, first check whether each product holds crypto directly or gets exposure through futures. Then compare its current prospectus disclosures for expenses, custody, benchmark and risks, and use trading data from the same date to assess spreads, volume and premiums or discounts to net asset value (NAV). The label “ETF” alone does not tell you how a crypto product is structured.
Start with the product structure
In the United States, products commonly called spot Bitcoin or Ether ETFs are generally exchange-traded commodity trusts that hold the crypto asset itself. The SEC says these products are not registered as investment companies under the Investment Company Act of 1940, even when their names or everyday descriptions use “ETF.” That distinction matters: they do not have all the protections and requirements that apply to funds registered under that law.
Futures-based products work differently. They hold futures contracts rather than Bitcoin or Ether directly, and may also hold collateral. Their returns can be affected by how futures exposure is implemented, so comparing one only with the spot price of Bitcoin or Ether leaves out important parts of its structure. For example, the January 22, 2026 prospectus for the futures-based CoinShares Bitcoin and Ether ETF (BTF) says the fund does not directly invest in either asset.
Before comparing costs or performance, identify each product’s structure in its current prospectus. Do not assume two products with “Bitcoin,” “Ether,” or “ETF” in their names own the same assets or face the same operating risks.
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Compare fees using current filings
Look beyond a headline sponsor or management fee. A prospectus may also list acquired fund fees and expenses, other expenses, and a total annual operating expense figure. Check whether the stated total is before or after a waiver or reimbursement, when that waiver ends, and whether a newer filing has changed the terms.
| Product and filing | Disclosed annual expenses | What the figure does—and does not—tell you |
|---|---|---|
| CoinShares Bitcoin and Ether ETF (BTF), January 22, 2026 prospectus | 1.27% total annual operating expenses: 0.95% management fees, 0.03% acquired fund fees and expenses, and 0.29% other expenses | The filing describes a futures-based fund, not a fund that directly owns Bitcoin or Ether. Check for a later prospectus before treating this as the current expense figure. |
| ProShares Bitcoin & Ether Equal Weight ETF, September 26, 2025 summary prospectus | 0.95% expenses after waiver | The disclosed waiver or reimbursement was scheduled through September 30, 2026. That date has passed; the 0.95% after-waiver figure should not be treated as current without checking updated terms. |
These filings illustrate how fee disclosures differ; they are not a current ranking or a like-for-like comparison of spot Bitcoin and spot Ether products. Annual operating expenses also do not necessarily include what you pay to trade shares. Prospectuses disclose brokerage charges separately, and your broker may charge commissions or other transaction costs. A lower stated fund expense ratio does not by itself establish that a product will cost less for your particular trade.
Check who holds the crypto, cash, or collateral
For a spot trust, look in the latest prospectus and supplements for the crypto custodian, cash custodian, custody arrangements, and risks involving safeguarding, operations, and access to assets. Do not infer a custodian from a fund’s sponsor or ticker. These details can change after launch.
For example, an August 2026 supplement for the ARK 21Shares Bitcoin ETF records a change in its benchmark and names Coinbase Custody, BitGo, Anchorage, and BitGo New York as Bitcoin custodians. Treat that as a dated example, not a guarantee that the same details remain in effect: verify the product’s current disclosures.
Futures funds require a different custody review. Since they hold derivatives rather than the crypto directly, examine their disclosures on futures exposure, collateral, and counterparties instead of looking for a spot-asset custodian as though the structures were interchangeable.
The SEC notes that spot Bitcoin and Ether ETPs are not subject to Investment Company Act requirements, including that law’s fund valuation and custody rules. Read the product’s own custody and operational risk disclosures rather than assuming that the word “ETF” means the same legal protections apply to every product.
Assess liquidity with more than one number
Liquidity is not a single figure. Review trading spread, trading volume, assets under management (AUM), and the share price’s premium or discount to NAV. They answer different questions: the bid-ask spread indicates the gap between quoted buying and selling prices; volume records trading activity over a period; AUM describes the fund’s size; and premium or discount shows how the market price compares with NAV.
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- Spread: Check the measurement period and whether the figure is a median or another statistic. A narrower spread can matter to the cost of trading, but the spread available for your order can vary with market conditions and order size.
- Volume: Match the time period and trading session when comparing products. Volume is not a promise that a particular order will execute at a specific price.
- AUM: Treat it as fund-size context, not a direct measure of the cost of your trade.
- Premium or discount to NAV: Check the date and calculation method. A share price can trade above or below NAV.
A CoinShares issuer snapshot dated October 2, 2026, reported the following figures for BTF:
| Measure | BTF figure | Source and date |
|---|---|---|
| 30-day median bid-ask spread | 2.02% | CoinShares issuer page, October 2, 2026 |
| Discount to NAV | 2.15% | CoinShares issuer page, October 2, 2026 |
| AUM | $16,866,127.94 | CoinShares issuer page, October 2, 2026 |
These are a dated snapshot for one futures-based product, not a comparison or ranking of spot Bitcoin and Ether funds. Market data changes; compare products using measurements from the same date or period, and consider the spread available when you actually trade.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Understand what “tracking” means
A spot trust aims to track the price of its crypto asset, but its share price is not guaranteed to match that price exactly. The SEC says share prices may deviate from the underlying crypto price. Changing demand for shares, issuer-related issues, and broader crypto-market events can contribute to deviations.
Check the benchmark or index named in the current prospectus, when it is measured, and how the product implements its exposure. Benchmarks can change: the August 2026 ARK 21Shares Bitcoin ETF supplement says its index changed on August 27, 2026, from the CME CF Bitcoin Reference Rate – New York Variant to the FTSE Bitcoin Index. A performance comparison should use the benchmark and fund disclosures applicable to the same dates.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →For a futures-based fund, compare its results with an appropriate futures-based reference as well as considering spot-price performance. Futures exposure and collateral affect the fund’s results; fund expenses and the market price of its shares add further differences. Compare returns over matching periods and distinguish NAV performance from the price at which shares traded.
A practical comparison checklist
- Confirm the geography and structure. Make sure the product is available in the U.S. market you are evaluating, then establish whether it is a spot trust or a futures-based fund.
- Read the latest prospectus and supplements. Note the filing date, stated expenses, waivers and expiry dates, benchmark, custody arrangements, and material risks. A dated filing may no longer describe current terms.
- Compare trading data on consistent dates. Review spread, volume, AUM, and premium or discount to NAV separately. Do not use fund size as a substitute for the likely cost of a particular trade.
- Match the performance comparison. Use the same start and end dates and identify whether returns refer to NAV or market price. Check the benchmark and, for futures products, account for their futures exposure rather than treating them as spot holdings.
- Review risks before choosing. The SEC describes Bitcoin and Ether as highly speculative and warns about volatility, possible loss, and fraud or manipulation risks in underlying crypto markets. Read each product’s prospectus and periodic reports for its specific risks.
What these examples can—and cannot—show
The dated BTF and ProShares disclosures demonstrate why fee waivers, fund structure, and market measures need to be checked individually. The ARK 21Shares supplement demonstrates that benchmark and custodian disclosures can change. These examples do not establish which spot Bitcoin or Ether product is cheapest, safest, most liquid, or best at tracking. To make that comparison, use current filings and comparable market data for the specific products under consideration.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
