Bitcoin ETFs Explained: IBIT, FBTC and How Spot Bitcoin Funds Work

IBIT and FBTC are two of the most popular spot bitcoin ETFs among American investors. IBIT is the iShares Bitcoin Trust from BlackRock, and FBTC is the Fidelity Wise Origin Bitcoin Fund. Both hold actual bitcoin, both trade on US stock exchanges, and both can be bought in an ordinary brokerage account or IRA alongside your other investments.

That convenience is what drew so many investors in. But a spot bitcoin ETF is not the same as a typical stock or bond ETF, and it is not the same as owning bitcoin yourself.

This guide explains how spot bitcoin ETFs work, what you do and do not own when you buy one, how they are regulated, how they are taxed, and the risks to understand before you invest. FRC has no relationship with BlackRock, Fidelity or any fund sponsor and no stake in what you buy: we do not sell investments, manage portfolios or earn commission, so everything here is explained impartially.

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How Spot Bitcoin ETFs Came to Market

For more than a decade, the SEC rejected applications for funds that would hold bitcoin directly. Its concerns centred on the risk of fraud and manipulation in the underlying bitcoin markets.

That changed on January 10, 2024, when the SEC approved 11 spot bitcoin exchange-traded products in a single day. IBIT and FBTC were among them, along with funds from other sponsors and the Grayscale Bitcoin Trust, which converted from an existing trust into an exchange-traded product.

Before then, the main regulated route was a bitcoin futures ETF, such as the ProShares Bitcoin Strategy ETF, BITO, launched in October 2021. A futures ETF holds contracts that bet on bitcoin’s future price, while a spot ETF holds the bitcoin itself, which is what “spot” means.

If you are new to how ETFs trade, FRC’s ETF Investing for Beginners course explains the basics step by step. For specialised fund structures like these, Advanced ETF Investing goes into greater depth.

IBIT Explained

IBIT, the iShares Bitcoin Trust, is sponsored by BlackRock, the world’s largest asset manager. It holds bitcoin and aims to reflect the performance of the price of bitcoin, before fees and expenses.

The bitcoin owned by the trust is held by a custodian, Coinbase Custody Trust Company. Most of it is kept in cold storage, meaning offline, which is designed to reduce the risk of theft through hacking.

Because IBIT is one of the largest spot bitcoin ETFs, it trades in high volumes on most days. That liquidity tends to keep the difference between the buying and selling price narrow, although it does not reduce the volatility of bitcoin itself.

FBTC Explained

FBTC, the Fidelity Wise Origin Bitcoin Fund, is sponsored by Fidelity. Like IBIT, it holds bitcoin directly and aims to reflect the price of bitcoin, before fees and expenses.

The key structural difference is custody. Rather than using an outside crypto firm, Fidelity uses its own affiliated company, Fidelity Digital Assets, to hold the fund’s bitcoin.

Some investors prefer one approach to custody over the other, but both are disclosed in full in each fund’s prospectus. Fees, trading volumes and other details differ between the two funds, so check each fund’s website for current figures.

What You Own When You Buy a Bitcoin ETF

When you buy IBIT or FBTC, you own shares in a trust. The trust owns the bitcoin, and the value of your shares rises and falls with the value of the bitcoin it holds.

You do not own bitcoin directly. You cannot withdraw coins, send them to a wallet or use them to make a payment, and you have no private keys of your own.

For many investors, that is the point. A spot bitcoin ETF removes the need to open an account at a crypto exchange, manage a digital wallet, or keep track of passwords and recovery phrases, any of which can lead to permanent loss if handled badly.

How Bitcoin ETFs Track the Price of Bitcoin

Like other ETFs, spot bitcoin ETFs use a creation and redemption process to keep their share price close to the value of the bitcoin they hold. Large financial firms create new shares when demand rises and redeem shares when demand falls.

At launch, this process had to happen in cash, with the trust buying or selling bitcoin itself. In July 2025, the SEC approved in-kind creations and redemptions for crypto exchange-traded products, allowing bitcoin rather than cash to move in and out of the fund, the same way stock ETFs exchange shares.

One difference from stock ETFs is timing. Bitcoin trades around the clock, every day of the year, but the ETFs trade only during US exchange hours. When bitcoin moves sharply overnight or at a weekend, the ETF’s price can jump or fall at the next market open.

How Spot Bitcoin ETFs Are Regulated

Most US ETFs are registered under the Investment Company Act of 1940. That law brings rules on diversification, governance, independent directors and conflicts of interest, which is why it is often described as the backbone of fund investor protection.

Spot bitcoin ETFs are not registered under the 1940 Act. They register their shares under the Securities Act of 1933, which requires full disclosure in a prospectus, and their shares trade on exchanges regulated under the Securities Exchange Act of 1934.

In practice, that means strong disclosure and exchange oversight, but not the full set of protections that apply to a typical mutual fund or stock ETF. The prospectus is where each fund explains its structure, custody arrangements and risks.

What the SEC Did and Did Not Say

Approval by the SEC is not an endorsement. When the products were approved, then-Chair Gary Gensler issued a statement making clear that the SEC did not approve or endorse bitcoin itself.

In the same statement, he described bitcoin as primarily a speculative, volatile asset, and urged investors to remain cautious about the risks of products tied to crypto. The approval meant the products met the requirements for listing, not that they were suitable for any particular investor.

That distinction applies to every product a regulator allows to trade. Permission to list is about rules and disclosure, while the decision to invest, and the risk that comes with it, sits with you.

The Protection Point Many Investors Get Wrong

When you hold IBIT or FBTC at a US broker, your shares are securities held in a brokerage account. If the brokerage firm itself fails, the Securities Investor Protection Corporation can step in to help return customers’ securities, up to its limits.

SIPC never protects you against a fall in value. If bitcoin falls by half, your ETF shares fall with it, and no protection scheme replaces that loss.

It is also worth knowing that bitcoin held directly at a crypto platform does not receive the same SIPC protection as securities at a registered broker-dealer. FRC’s guide on what happens if your brokerage goes bankrupt explains how SIPC protection works and where its limits are.

The Volatility of Bitcoin

Bitcoin is one of the most volatile assets available to retail investors. Its price can rise or fall by double-digit percentages within days, and falls of 50 percent or more have happened several times in its history.

A spot bitcoin ETF passes that volatility straight through to its shareholders. The ETF wrapper makes bitcoin easier to buy and hold, but it does not make bitcoin any less risky.

Bitcoin also produces no cash flow. It pays no dividends or interest and has no earnings, so its price depends entirely on what other buyers are willing to pay, which makes it very different from a fund of company shares or bonds.

Costs to Understand

Every spot bitcoin ETF charges an expense ratio, an annual fee taken from the fund’s assets. Several funds offered temporary fee waivers when they launched, and some of those waivers have since ended, so the fee you pay today may differ from what was advertised at launch.

Because bitcoin produces no income, the trust typically sells small amounts of bitcoin to pay its fees. Over time, that gradually reduces the amount of bitcoin backing each share.

Trading costs add up as well. Most US brokers charge no commission on ETF trades, but you still pay the bid-ask spread each time you buy or sell. Check the fund’s website for the current expense ratio, holdings and premium or discount to net asset value.

How Bitcoin ETFs Are Taxed

The IRS treats bitcoin as property rather than currency. Spot bitcoin ETFs are generally structured as grantor trusts, which means shareholders are treated for tax purposes as owning their share of the trust’s bitcoin.

In a taxable brokerage account, selling shares at a profit creates a capital gain. If you held the shares for one year or less, the gain is short-term and taxed at ordinary income rates, and if you held them for more than a year, long-term capital gains rates apply.

When the trust sells small amounts of bitcoin to pay its fees, those sales can create small taxable gains or losses for shareholders, even if you did not sell any shares. Each fund’s prospectus and annual tax reporting explain how this is handled, and your broker’s tax forms show what to report.

Inside an IRA, gains are not taxed each year, and a Roth IRA can allow qualified withdrawals to be tax-free. Whether a 401(k) offers bitcoin ETFs depends entirely on the plan.

Spot Bitcoin ETFs Compared With Other Ways to Own Bitcoin

Buying bitcoin directly on a crypto exchange gives you the coins themselves, which you can move, spend or hold in your own wallet. It also leaves you responsible for security, and crypto platforms do not carry the same protections as registered US brokers.

A bitcoin futures ETF, such as BITO, holds futures contracts rather than bitcoin. Rolling those contracts from month to month can cause its returns to differ from the price of bitcoin over time.

A spot bitcoin ETF sits between the two. You gain price exposure inside a regulated brokerage account, with professional custody and full disclosure, but you give up direct ownership and pay an annual fee.

Bitcoin ETFs and Investment Scams

The approval of spot bitcoin ETFs gave crypto a new level of mainstream credibility, and fraudsters use that credibility too. Fake bitcoin funds, imitation trading apps and social media promoters claiming guaranteed returns are common.

A real spot bitcoin ETF trades on a US exchange under a ticker you can look up, and its prospectus is filed with the SEC. If someone offers a bitcoin fund that cannot be bought through a registered broker, or promises returns, treat it as a warning sign.

FRC’s guide on how to avoid investment scams explains the warning signs and how to check who you are dealing with.

How to Buy a Spot Bitcoin ETF

Buying a spot bitcoin ETF works the same way as buying any other ETF. You search for the ticker in your brokerage account, check that the full fund name matches the product you intend to buy, choose how many shares or dollars to invest, and place an order.

Many investors use a limit order rather than a market order, which sets the highest price they are willing to pay. That can help at the market open after a weekend, when bitcoin may have moved sharply while US exchanges were closed and the ETF’s opening price adjusts to catch up.

Before you place the order, decide which account the shares belong in and how large the position should be relative to everything else you own. Those two decisions shape your tax bill and your risk far more than the choice between one spot bitcoin ETF and another.

Who Uses Spot Bitcoin ETFs

Investors who want some exposure to the price of bitcoin, without managing a crypto account, use spot bitcoin ETFs. Many hold them in the same account as their stock and bond funds, which makes the position easy to track and rebalance.

Because of bitcoin’s volatility, many investors who use these funds keep them as a small part of a diversified portfolio. A large position can dominate the ups and downs of an entire portfolio.

Bitcoin ETFs are also very different from leveraged ETFs, which multiply daily returns. A spot bitcoin ETF aims to track the price of bitcoin itself, without leverage, although the underlying asset already moves sharply.

Questions to Ask Before Buying a Bitcoin ETF

First, could you accept a fall of 50 percent or more in this investment without being forced to sell? If not, the position may be too large, or the investment may not suit your situation.

Second, do you understand what you own? You hold shares in a trust, not bitcoin itself, and you pay an annual fee for the convenience.

Third, which account will you use, and how will gains be taxed? Fourth, how does this position fit with the rest of your portfolio?

Finally, read the prospectus and check the fund’s website for current fees, custody arrangements and risk disclosures. Official documents are always the source to rely on.

Common Questions

Is IBIT the same as owning bitcoin? No. IBIT holds bitcoin, and its price aims to follow bitcoin’s price before fees, but you own shares in a trust rather than the coins themselves, and you cannot withdraw bitcoin from it.

What is the difference between IBIT and FBTC? Both are spot bitcoin ETFs that hold bitcoin directly. The main structural difference is custody: IBIT uses Coinbase Custody, while FBTC uses Fidelity’s own affiliate, Fidelity Digital Assets, and their fees and trading volumes differ.

Are bitcoin ETFs protected by SIPC? Your ETF shares held at a SIPC-member broker are covered if the broker itself fails, up to SIPC’s limits. SIPC never covers losses from a fall in the price of bitcoin.

Can you hold a bitcoin ETF in an IRA? Yes, at most brokers that offer IRAs, spot bitcoin ETFs can be held like other exchange-traded products. Gains inside the IRA are not taxed each year.

Do bitcoin ETFs pay dividends? No. Bitcoin produces no income, so spot bitcoin ETFs pay no dividends, and the trust sells small amounts of bitcoin to cover its fees.

Learning How These Products Work Is Open to Everyone

You do not need a finance background to understand spot bitcoin ETFs. Custody, fund structure, tax treatment and investor protection can all be learned, and understanding them is what separates an informed decision from a headline-driven one.

FRC’s programmes and memberships are open to everyone. Start with ETF Investing for Beginners if you are new, and move to Advanced ETF Investing when you want to understand specialised fund structures in depth.

FRC’s Professional Membership adds structured learning, verified progress and a growing set of tools for investors who want to keep building their knowledge. The FRC dictionary, with explainer videos on the rules behind US investing, is free for everyone.

Your Next Step

IBIT and FBTC make bitcoin as easy to buy as any other ETF, with professional custody and full disclosure. What they do not change is bitcoin’s volatility, its lack of income, or the fact that regulators approved the products, not the asset.

Read the prospectus, decide how much risk you can carry, choose the right account and check the fund’s website before you buy. Then carry on with FRC’s complete step-by-step guide to investing in ETFs to build the rest of your portfolio.