Start by checking what the product actually holds. U.S. spot Bitcoin and Ether exchange-traded products are commodity trusts holding crypto, while futures-based products hold derivatives rather than Bitcoin or Ether directly. That structural difference affects fees, custody, and how returns can diverge from spot prices. Compare the latest prospectuses and market data for the specific tickers you are considering; the examples below are dated illustrations, not a current ranking of spot funds.
First, distinguish spot crypto trusts from futures-based ETFs
The U.S. Securities and Exchange Commission (SEC) describes spot Bitcoin and Ether ETPs as exchange-traded commodity trusts that hold the crypto asset. They are not registered as investment companies under the Investment Company Act of 1940, even when a product’s name or common usage calls it an ETF. The SEC describes futures ETPs differently: they primarily hold futures contracts.
| What to compare | Spot Bitcoin or Ether trust | Futures-based product |
|---|---|---|
| Exposure | Holds Bitcoin or Ether, as applicable | Holds futures contracts for exposure; does not directly own the crypto asset |
| Custody and operations | Check the named crypto custodian, cash custodian, safeguarding disclosures, and related risks in the current prospectus | Check how futures exposure is implemented, how collateral is held, and the relevant counterparty and derivatives disclosures |
| Tracking comparison | Compare share returns with the disclosed benchmark and the asset’s price over matching dates | Compare returns with the product’s disclosed exposure and benchmark; a spot-price comparison alone is incomplete |
| Regulatory structure | Commodity trust, not an Investment Company Act fund | Futures ETP; check the prospectus for the product’s specific structure |
For example, the January 22, 2026 CoinShares Bitcoin and Ether ETF (BTF) prospectus says the fund does not directly invest in Bitcoin or Ether. Do not use its fee or tracking figures as a stand-in for a spot trust’s.
How should you compare fees?
Use the latest prospectus and compare recurring operating expenses separately from costs of buying or selling shares. A headline sponsor or management fee may not capture every annual fund expense, and brokerage commissions or other trading charges may be separate.
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- Read the total annual operating expenses. Check the prospectus breakdown, including management fees, acquired fund fees and expenses, and other expenses where listed.
- Check fee waivers and their end dates. A net expense figure may depend on a temporary waiver or reimbursement. Do not assume it continues after the disclosed term.
- Include trading costs in your own comparison. Brokerage charges and the bid-ask spread can affect your cost even though they are not the fund’s annual operating expense ratio.
In its January 22, 2026 prospectus, futures-based BTF reported 0.95% management fees, 0.03% acquired fund fees and expenses, and 0.29% other expenses, for 1.27% total annual operating expenses. Those are prospectus figures for that product and date, not a current spot-product comparison.
A September 26, 2025 summary prospectus for the futures-based ProShares Bitcoin & Ether Equal Weight ETF listed 0.95% expenses after a waiver or reimbursement scheduled through September 30, 2026. That date has passed. The figure should not be treated as the fund’s current net expense without checking a newer filing.
What custody details matter?
For a spot trust, identify who holds the crypto, who holds cash, and what the prospectus says about safeguarding, operational arrangements, and custody risks. Do not infer those details from the sponsor’s brand or ticker. The SEC notes that spot Bitcoin and Ether ETPs are outside the Investment Company Act’s custody requirements; read the product’s own disclosures rather than assuming those rules apply.
Custodians and other arrangements can change. An August 2026 ARK 21Shares Bitcoin ETF prospectus supplement named Coinbase Custody, BitGo, Anchorage, and BitGo New York as Bitcoin custodians. That is a dated example for that product—not a statement about every spot fund or its current arrangements. For a futures product, focus instead on its derivatives exposure, collateral, and related operational disclosures.
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How do you judge liquidity?
Liquidity is not a single number. Compare the bid-ask spread, trading volume, assets under management (AUM), and the share price’s premium or discount to net asset value (NAV). Use figures measured over the same period or on the same date where possible.
- Bid-ask spread: the gap between the prices at which shares can be bought and sold. A wider spread can increase the cost of a trade.
- Trading volume: how many shares changed hands over a stated period. It does not by itself tell you the spread or the likely cost of your specific order.
- AUM: the value of assets in the product. It is not a measure of the cost of executing a particular trade.
- Premium or discount to NAV: whether shares trade above or below the reported value of the underlying portfolio per share.
As a dated illustration, CoinShares reported for BTF on October 2, 2026 a 30-day median bid-ask spread of 2.02%, a 2.15% discount to NAV, and AUM of $16,866,127.94 (about $16.87 million). These issuer-reported figures describe that product and snapshot; they are not a head-to-head liquidity ranking. Market data changes, so check recent figures before trading.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why might an ETP not track Bitcoin or Ether exactly?
A spot trust’s share price is intended to track its crypto asset, but the SEC warns that it may deviate. Share demand can change, and issuer-specific issues or broader crypto-market events can contribute to a difference between the ETP share price and the asset’s price. The trust’s benchmark, valuation time, fees, and market-price movements also matter when comparing returns.
For a futures-based product, there is an additional distinction: it holds futures rather than the underlying crypto directly. Its results depend in part on how futures exposure is implemented and how collateral is managed, so comparing its return only with the spot price does not tell the whole story.
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Check the benchmark or index name in the current prospectus and compare returns over identical dates. Benchmark details can change: an August 2026 ARK 21Shares supplement records a switch, effective August 27, 2026, from the CME CF Bitcoin Reference Rate – New York Variant to the FTSE Bitcoin Index. A comparison using an old benchmark description may therefore be out of date.
A practical checklist before choosing a ticker
- Confirm the structure. Establish whether the product is a spot trust holding crypto or a futures-based product holding derivatives.
- Open the latest prospectus and supplements. Confirm the fee breakdown, waiver terms, custody arrangements, benchmark, and risk disclosures for the ticker and date you are evaluating.
- Compare expenses on an equal basis. Use total annual operating expenses, account for waiver terms, and keep brokerage and trading costs separate.
- Compare liquidity with matched data. Review recent spreads, volume, AUM, and premium or discount to NAV rather than relying on AUM alone.
- Compare tracking over matching dates. Use each product’s disclosed benchmark and distinguish the market price of its shares from the underlying crypto price.
- Read the risks before investing. The SEC warns that Bitcoin and Ether are highly speculative and subject to volatility, possible loss, and risks including fraud and manipulation in underlying crypto markets. Consult the product’s prospectus and periodic reports for its specific risks.
SEC registration or a product’s use of the word “ETF” should not be read as an endorsement. These products can lose value, and their structure and disclosures—not the label alone—should guide a comparison.
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