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To choose a Bitcoin or Ethereum ETF, first check whether it holds the cryptocurrency directly or uses futures. Then compare its full costs, custody and benchmark disclosures, and how its net asset value (NAV) and market price have tracked the benchmark. The label “ETF” is often used broadly: some U.S. spot crypto products are trusts or exchange-traded products (ETPs), not registered investment-company ETFs. A listing or regulatory approval is not an endorsement of a fund or a guarantee against loss.
Start with what the fund actually holds
A product’s name does not tell you how it gets exposure. Read its latest prospectus or summary prospectus and identify the holdings and strategy.
- Spot: The product holds bitcoin or ether with a custodian. Its NAV reflects its assets and liabilities, while its exchange-traded shares can trade above or below NAV.
- Futures: The product uses futures contracts rather than holding the cryptocurrency directly. Contract replacement, or “rolling,” and any rebalancing can affect returns relative to spot prices.
- Combined exposure: A fund can target both Bitcoin and Ether without holding either coin. For example, the ProShares Bitcoin & Ether Equal Weight ETF’s September 26, 2025 summary prospectus says it seeks equal-weight exposure primarily through futures and “does not invest directly in bitcoin or ether.” It describes monthly futures replacement and monthly re-establishment of equal-weight exposure. Those terms describe that fund, not every crypto product. Read the ProShares summary prospectus.
Confirm whether the stated allocation is a target or a current holding, and how often the fund rebalances. A futures product and a spot-holding product are different strategies, even when their names refer to the same cryptocurrency.
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Find the gross and net annual operating expense ratios, the amount and end date of any waiver, and costs that may not appear in the expense ratio. Depending on the strategy and brokerage, relevant costs can include futures financing and transaction expenses, commissions, and the bid-ask spread when you trade.
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A dated example shows why the details matter: the ProShares summary prospectus dated September 26, 2025 listed 1.03% total annual operating expenses before waiver, including 0.08% in other expenses identified as interest expense and futures commission merchant fees. It reported 0.95% after the specified waiver, which the filing said ran through September 30, 2026. The prospectus also says transaction and financing costs are not reflected in its expense table. These are disclosures for that fund and filing date, not an industry average or a current quote for every investor. Check the filing’s expense and waiver terms.
Before comparing products, verify the current prospectus and fee schedule. A waiver can expire or change, and two funds with similar expense ratios may still have different trading or strategy-related costs.
Read the custody and benchmark disclosures
For a spot product, check who holds the cryptocurrency and what the documents say about control of assets, segregation, service providers, insurance limits, and procedures for disruptions or losses. A custodian’s name alone does not establish that custody is risk-free, and provider arrangements vary by fund.
Fund disclosures provide specific examples, not universal arrangements. Grayscale’s cited BTC product materials name Coinbase Custody and the CoinDesk Bitcoin Price Index (XBX). Bitwise’s annual report for the year ended December 31, 2025 identifies Coinbase Custody Trust Company as bitcoin custodian and BNY Mellon as cash custodian, administrator, and transfer agent. See Grayscale’s product materials and Bitwise’s annual report.
Also identify the benchmark or reference rate used to value the fund. Its methodology and pricing time matter: a benchmark is not necessarily identical to every exchange’s quoted price at every moment. Read the relevant benchmark methodology along with the fund’s own disclosures.
Check tracking at NAV and at the price you can trade
To assess how closely a fund has followed its stated benchmark, compare NAV total returns with the benchmark over the same periods. For a futures fund, first make sure you are comparing against a benchmark appropriate to its futures strategy, rather than assuming it should match spot prices.
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That NAV comparison is not the whole investor experience. Exchange prices may trade at a premium or discount to NAV, and spreads and brokerage commissions affect what you pay and receive. Grayscale’s product material notes that ETP shares trade at market prices that may differ from NAV and that commissions reduce returns. Review the product’s trading and NAV disclosures.
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Evaluate trading conditions and product fit
Before placing a trade, review current average volume, bid-ask spreads, premium-or-discount history, and the fund’s creation and redemption arrangements as described in its disclosures. These affect implementation, but no current, comprehensive liquidity comparison is established here; compare the products you are actually considering using dated exchange and fund information.
Then decide whether you want Bitcoin, Ether, or a combined allocation, and whether the fund’s structure matches that intended exposure. A combined crypto fund is still a concentrated crypto investment, not necessarily a broadly diversified portfolio. Consider your ability to tolerate substantial losses; this comparison does not establish that any one product is appropriate for you.
Quick Recap
A practical comparison checklist
- Open the latest prospectus. Confirm spot holdings, futures exposure, or a mix; check whether the fund directly holds either coin and how targets are maintained.
- Record all disclosed expenses. Note gross and net ratios, waiver amount and expiration, plus identified trading, financing, and brokerage costs.
- Identify custody and valuation. For spot products, record the crypto custodian and relevant safeguards. Find the benchmark or reference rate and its methodology.
- Compare like with like. Use same-period NAV and benchmark returns; review market-price premiums or discounts separately, along with spreads and commissions.
- Check current trading information. Review volume, spreads, premium-or-discount history, and the latest fund documents before acting. Terms, providers, and trading conditions can change.
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.
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