Bitcoin ETFs Explained
What a bitcoin exchange-traded fund is, how spot and futures ETFs differ, and how holding fund shares differs from holding coins yourself.
An ETF (exchange-traded fund) is a fund whose shares trade on a regular stock exchange, just like company stock. A bitcoin ETF gives price exposure to bitcoin through an ordinary brokerage account, without buying coins on a crypto exchange or setting up a wallet.
How an ETF works
A fund pools money from investors and uses it to hold certain assets: stocks, bonds, gold or, in this case, bitcoin. Investors do not buy those assets directly. They buy shares of the fund, and the share price tracks the value of what the fund holds.
To keep the share price close to the value of the underlying assets, ETFs use a creation and redemption process. Large financial firms called authorized participants take part in it. When demand for shares rises, new shares are created and the fund acquires more of the underlying asset. When demand falls, shares are redeemed and the fund reduces its holdings. As a result, the market price of a share usually stays close to the fund's net asset value.
Spot vs. futures ETFs
There are two main kinds of bitcoin funds:
- A spot ETF holds actual bitcoin. The coins are kept by a specialized custodian, a company responsible for storing them securely. The share value depends directly on the BTC price.
- A futures ETF holds bitcoin futures contracts instead of coins. Those contracts have to be rolled over to later dates from time to time, which can cause the fund's performance to drift away from the price of bitcoin itself.
In the United States, futures-based bitcoin ETFs arrived first, in October 2021. Spot funds were not approved by the regulator for a long time.
US approval of spot ETFs
On 10 January 2024, the US Securities and Exchange Commission (SEC) approved the first spot bitcoin ETFs. Trading began the next day, 11 January 2024. Several funds from different asset managers were approved at the same time.
The event is often described as a milestone for the industry. Bitcoin became reachable through familiar stock market infrastructure: brokerage accounts, retirement accounts and investment platforms that do not connect to crypto exchanges directly.
ETF shares vs. owning bitcoin
The two approaches are fundamentally different:
- Keys. An ETF shareholder holds no private keys and cannot send bitcoin to an address. The fund and its custodian control the coins.
- Trading hours. The bitcoin network runs around the clock, while ETF shares trade only during stock exchange hours.
- Fees. The fund charges an annual management fee, which is gradually deducted from its assets.
- Access. An ETF requires a brokerage account that offers the product. Buying coins requires a crypto exchange or a similar service.
- Use. A fund share cannot be spent or transferred like cryptocurrency. It is a security, not a coin.
- Regulation. ETFs follow the securities rules of their country, including disclosure requirements.
What ETF flows mean
News reports often mention ETF "inflows" and "outflows." An inflow means more new shares were created than redeemed on a given day, so the fund grew overall. An outflow is the opposite. Funds and analytics services publish this data, and it is widely followed as one gauge of interest in bitcoin from traditional investors.
Keep in mind that flows describe the behavior of participants in one market only. They do not determine the price of bitcoin on their own.
Risks and features
- Price swings. A spot ETF share follows bitcoin and can be very volatile.
- Premiums and discounts. At times the share price may differ slightly from the value of the bitcoin held by the fund.
- Intermediaries. You depend on the asset manager, the custodian and your broker.
- Availability. Which funds you can access depends on your country and broker.
Summary
A bitcoin ETF is a fund whose shares trade on a stock exchange. Spot ETFs hold real bitcoin, while futures ETFs hold contracts on it. In the US, the first spot funds were approved on 10 January 2024 and began trading on 11 January 2024. Owning ETF shares and owning bitcoin are different things: one gives you a security, the other gives you the asset and the keys to it.