A Bitcoin ETF is a fund that trades on a stock exchange and is built to follow the price of Bitcoin. Investors buy and sell its shares through an ordinary brokerage account. They get exposure to Bitcoin's price without buying, storing or securing the coins themselves.
Strictly speaking, most spot Bitcoin funds in the United States are exchange-traded products (ETPs) structured as trusts, not funds registered under the Investment Company Act of 1940 like a typical stock ETF. People call them ETFs anyway, and this article does too. The SEC's investor site explains how an exchange-traded fund works in general.
Spot Bitcoin ETFs
A spot Bitcoin ETF holds actual Bitcoin. The fund's sponsor appoints a custodian to store the coins, and each share represents a small claim on that pool.
The US Securities and Exchange Commission approved the first spot Bitcoin products on January 10, 2024, and they began trading the next day. Eleven products started trading in that first wave. The approval followed years of rejected applications and a 2023 court ruling in a case brought by Grayscale.
How the Share Price Stays Close to Bitcoin
Large trading firms called authorized participants can create new shares or redeem existing ones with the fund. If shares trade above the value of the Bitcoin behind them, these firms create shares and sell them. If shares trade below, they buy shares and redeem them. This arbitrage keeps the market price near the fund's net asset value.
The US funds launched with cash-only creations and redemptions. In 2025 the SEC allowed in-kind transfers as well, where Bitcoin itself moves in and out of the fund.
Well-Known US Spot Bitcoin ETFs
- iShares Bitcoin Trust (IBIT), from BlackRock
- Fidelity Wise Origin Bitcoin Fund (FBTC)
- ARK 21Shares Bitcoin ETF (ARKB)
- Bitwise Bitcoin ETF (BITB)
- Grayscale Bitcoin Trust (GBTC), which converted from an older closed trust
This list is not a ranking or a recommendation. Fund size, fees and trading volume change, so check each issuer's own page for current figures.
Futures ETFs vs Spot ETFs
Before 2024, the only US Bitcoin ETFs held futures contracts instead of Bitcoin. The first was the ProShares Bitcoin Strategy ETF (BITO), which launched in October 2021 and holds Bitcoin futures traded on the CME.
Futures contracts expire, so the fund must keep selling the expiring contract and buying a later one. When later contracts cost more, a condition called contango, each roll loses a little value. Over time this can make a futures fund lag the spot price. A spot fund avoids that roll cost because it holds the asset directly.
ETF vs Owning Bitcoin Directly
An ETF share is not Bitcoin. Shareholders do not hold private keys and cannot withdraw coins to a wallet, send a payment or use the Bitcoin in any on-chain application.
What the ETF offers in exchange:
- Access through an existing brokerage account, including many retirement accounts.
- No wallet, seed phrase or exchange account to manage.
- Standard brokerage tax reporting.
- A regulated product with a published prospectus and daily holdings.
What direct ownership offers:
- Control of your own keys, with no fund or custodian in between.
- The ability to move Bitcoin at any time. The Bitcoin network runs around the clock, while ETF shares trade only during stock market hours.
- No annual management fee.
Neither route removes price risk. Both go up and down with Bitcoin.
Fees
Every Bitcoin ETF charges an annual fee called the expense ratio, taken from the fund's assets. Many issuers launched with temporary fee waivers. Most spot funds settled on fees of a fraction of one percent per year. Grayscale's GBTC charged 1.5% after its conversion, well above the newer funds.
The expense ratio is not the only cost. You also pay the bid-ask spread when you trade, plus any commission your broker charges. Over many years, even a small annual fee adds up, so compare the current figures in each fund's prospectus.
Why ETFs Matter for the Market
ETFs made Bitcoin available to investors and advisers who could not or would not open a crypto exchange account.
When investors put new money into a spot ETF, the fund has to acquire Bitcoin. When they pull money out, it sells. Fund flows are therefore one source of demand and supply. They are not the only one, and a day of inflows does not guarantee that the price rises.
Beyond Bitcoin
Spot Ether ETFs began trading in the United States in July 2024. Since then, issuers have launched or filed for funds tied to other crypto assets. The rules in this area have changed quickly, so check the current status of any specific product with the issuer or your broker.
Risks and Common Mistakes
- Price risk: the fund falls as far as Bitcoin does. The SEC's crypto asset resources for investors stress how volatile these assets are.
- Custody concentration: several funds use the same custodian, so an incident there could affect more than one product.
- Weekend gaps: Bitcoin trades all weekend. ETF shares can open on Monday at a very different price from Friday's close.
- Confusing products: inverse and futures-based funds behave differently from spot funds. Read what a fund actually holds.
- Ignoring fees: two funds holding the same asset can differ a lot in cost.
Nothing in this article is financial advice.
Key Dates
- October 2021: first US Bitcoin futures ETF (BITO) launches
- January 10, 2024: SEC approves spot Bitcoin products
- January 11, 2024: spot Bitcoin ETFs begin trading
- July 2024: spot Ether ETFs begin trading
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The Bitcoin price page shows the live BTC price, market cap, supply and chart, which is the price every spot ETF is built to follow. The Ethereum price page does the same for ETH. The homepage shows total market cap, volume and the Fear and Greed reading.