Bitcoin ETFs: Performance Review

The approval of spot Bitcoin ETFs by the SEC in January 2024 changed the investment environment for cryptocurrency. Investors no longer need to manage private keys or worry about unregulated exchanges. Instead, you can buy Bitcoin exposure directly through your brokerage account. However, not all these funds are created equal.

While they all track the same asset, the difference lies in the fees, liquidity, and custody arrangements. This review breaks down the top contenders to help you decide which fund offers the best value for your portfolio.

The Battle for the Lowest Fees

The primary differentiator between these ETFs is the expense ratio. Since all spot Bitcoin ETFs hold the exact same asset, the fee charged by the issuer is the biggest drag on your net performance. The competition here has been aggressive, described by analysts as a “fee war” to capture market share.

Here is how the major players stack up regarding expense ratios:

  • Grayscale Bitcoin Mini Trust (BTC): 0.15%
  • Franklin Bitcoin ETF (EZBC): 0.19%
  • Bitwise Bitcoin ETF (BITB): 0.20%
  • Ark 21Shares Bitcoin ETF (ARKB): 0.21%
  • iShares Bitcoin Trust (IBIT by BlackRock): 0.25%
  • Fidelity Wise Origin Bitcoin Fund (FBTC): 0.25%
  • Grayscale Bitcoin Trust (GBTC): 1.50%

The Grayscale Situation: You must be careful with Grayscale. Their original product, GBTC, carries a massive 1.50% fee. This is a legacy rate from when it was a closed-end trust. To compete, they launched a “spin-off” version called the Grayscale Bitcoin Mini Trust (ticker: BTC), which has the lowest fee on the market at 0.15%. If you choose Grayscale, ensure you are buying BTC, not GBTC, or you will pay ten times more in management fees.

The Middle Ground: While Franklin Templeton (EZBC) and Bitwise (BITB) are technically cheaper than BlackRock and Fidelity, the difference is roughly $5 or $6 per year for every $10,000 invested. For many investors, this slight premium is worth paying for the liquidity that comes with the larger funds.

Liquidity and Trading Spreads

Low fees are important, but liquidity arguably matters more for active traders. Liquidity refers to how easily shares can be bought or sold without impacting the price. The two metrics to watch here are Assets Under Management (AUM) and daily trading volume.

BlackRock (IBIT) and Fidelity (FBTC) are the clear market leaders.

  • IBIT typically sees hundreds of millions of dollars in volume daily.
  • FBTC follows closely behind.

Why this matters: High volume results in a tight “bid-ask spread.” The spread is the difference between the highest price a buyer is willing to pay and the lowest price a seller is willing to accept.

  • In highly liquid funds like IBIT, the spread is usually a penny (e.g., $35.00 bid / $35.01 ask).
  • In smaller funds with low volume, the spread might be wider. If you buy a smaller ETF, you might technically pay a lower management fee (0.19%), but you could lose 0.10% or more instantly upon purchase due to a wide spread.

For long-term buy-and-hold investors, the expense ratio is the priority. For those who trade frequently or buy in large blocks, IBIT and FBTC offer the best execution.

Custody: Who Actually Holds the Bitcoin?

When you buy shares of these ETFs, the fund manager buys actual Bitcoin. However, financial giants like BlackRock do not store the private keys on a USB drive in the CEO’s desk. They use institutional custodians.

There is a significant concentration risk in the current market:

  • Coinbase Custody holds the Bitcoin for the majority of issuers, including BlackRock, Ark 21Shares, Grayscale, and Franklin Templeton.
  • Gemini serves as the custodian for VanEck.
  • Fidelity is the outlier. They custody their own Bitcoin.

If you are worried about “counterparty risk”—the risk that the company holding the asset fails—this is a major factor. If Coinbase were to suffer a catastrophic security failure, it would impact IBIT, ARKB, and BITB simultaneously.

Diversifying your holdings might be a smart strategy. For example, an investor might split their allocation between IBIT (Coinbase custody) and FBTC (Fidelity self-custody) to mitigate the risk of a single custodian failure.

Tracking Error

The goal of these ETFs is to mirror the spot price of Bitcoin perfectly. So far, tracking error has been minimal across the board. However, the mechanism for how these funds work does create slight variances.

These funds use a “cash creation” model rather than “in-kind” creation. When authorized participants want to create new shares of the ETF, they give the issuer cash, and the issuer buys Bitcoin. This introduces a slight timing delay between the cash receipt and the Bitcoin purchase.

Despite this technicality, data from the first few months of trading shows that all major funds track the Bitcoin index within a few basis points. The primary driver of performance divergence remains the expense ratio. Over a 10-year period, a fund charging 0.15% will mathematically outperform a fund charging 0.25%, assuming all other tracking factors remain equal.

Frequently Asked Questions

Which Bitcoin ETF is the best for long-term holding? If your goal is strictly lowest cost over 10+ years, the Grayscale Bitcoin Mini Trust (BTC) currently offers the lowest fee at 0.15%, followed closely by Franklin Templeton (EZBC) at 0.19%.

Does the BlackRock ETF (IBIT) own real Bitcoin? Yes. For every share of IBIT created, BlackRock purchases a corresponding amount of Bitcoin, which is held in cold storage by Coinbase Custody. They publish their list of addresses periodically to prove reserves.

Why is GBTC so much more expensive than the others? Grayscale’s GBTC existed for years as a trust before converting to an ETF. It has a massive existing user base that is locked in due to potential capital gains taxes. Grayscale maintains the 1.5% fee on GBTC to maximize revenue from these trapped assets while offering the low-fee “Mini” version for new money.

Are these ETFs insured by the FDIC? No. Bitcoin ETFs are investment products. They are SIPC insured, which protects you if your brokerage goes bankrupt, but this does not protect you from loss of value if the price of Bitcoin drops.

Do these ETFs pay dividends? No. Bitcoin does not generate yield or cash flow. The only way to make money with these ETFs is if the price of Bitcoin rises.