An ETF is a fund that holds many stocks or bonds and trades on a stock exchange like a single share

An exchange-traded fund (ETF) is a basket of investments — usually stocks, bonds, or a mix — that you can buy and sell during the trading day just like you would buy a single company's stock. When you own one share of an ETF, you own a small piece of everything inside it. The fund manager decides what goes in the basket, and the price changes throughout the day based on what investors are willing to pay.

The key difference from a mutual fund is timing: mutual funds only trade once per day after the market closes, while ETFs trade in real time during market hours. This means you can sell an ETF at 10 a.m. if you need the money, rather than waiting until 4 p.m. and getting whatever the closing price is.

Key Takeaways

  • An ETF holds many investments in one fund, so buying one ETF share gives you exposure to dozens or hundreds of companies without buying each one separately.
  • ETFs trade during market hours like stocks, so you can buy or sell whenever the market is open, not just at the end of the day.
  • ETF fees are typically lower than mutual fund fees because most ETFs are passively managed — they simply track an index rather than having a manager pick stocks.
  • You can find ETFs that track almost any investment category: large U.S. companies, international stocks, bonds, specific industries, or combinations of all three.

How an ETF holds your money

When you buy shares of an ETF, your money goes into a fund that owns the actual investments. If you buy an ETF that tracks the S&P 500, the fund owns pieces of all 500 companies in that index. You do not own those companies directly — the fund does — but you own a proportional slice of the fund.

The fund is managed by a company (like Vanguard, BlackRock, or Invesco), which charges a fee for holding and maintaining the investments. That fee is called the expense ratio, and it is deducted automatically from the fund's value each year. Most ETFs charge between 0.03% and 0.50% per year, though some specialty ETFs cost more.

Passive versus active ETFs

Most ETFs are passively managed, meaning they simply track an existing index like the S&P 500, the Nasdaq 100, or the total bond market. The fund manager's job is to hold the right mix of investments so the fund's performance matches the index. Because there is no active stock-picking involved, these funds have lower fees.

Some ETFs are actively managed, meaning a human manager or team decides which specific investments to buy and sell to try to beat the market. These funds charge higher fees — often 0.50% to 1.00% or more — because the manager's work costs money. Whether active management is worth the extra cost is a question investors debate constantly.

Why investors use ETFs instead of buying stocks directly

Buying individual stocks means researching companies, deciding how much to invest in each one, and monitoring them over time. An ETF does the diversification work for you: one fund might hold 100 or 500 companies, so if one performs poorly, it does not tank your whole investment.

ETFs also let you invest in categories that would be hard to build yourself. You can buy an ETF focused on renewable energy companies, emerging markets, or dividend-paying stocks without having to identify and purchase each company separately. For someone with a small amount to invest, an ETF is often cheaper than buying even a handful of individual stocks because you avoid paying separate commissions on each purchase.

Where you buy and sell ETFs

You buy and sell ETFs through a brokerage account — the same place you would buy individual stocks. Common brokerages include Fidelity, Charles Schwab, E*TRADE, and many others. You search for the ETF by its ticker symbol (a short code like SPY or VOO), place an order during market hours, and the trade executes at whatever price the market is at that moment.

Because ETFs trade like stocks, you pay a commission if your brokerage charges one. Many brokerages now offer commission-free trading on ETFs, so check your brokerage's fee schedule before you open an account. You also pay the ETF's expense ratio automatically each year, which comes out of the fund's value.

Common types of ETFs and what they track

ETFs exist for nearly every investment category. Index ETFs track broad market indexes like the S&P 500 or total U.S. stock market. Sector ETFs focus on specific industries like technology, healthcare, or energy. Bond ETFs hold government or corporate bonds. International ETFs invest in stocks or bonds from other countries. Specialty ETFs might track commodities, real estate, or specific themes like artificial intelligence or clean energy.

Some ETFs combine multiple asset types — for example, a fund might hold 60% stocks and 40% bonds in a single ticker. These are called asset allocation ETFs or target-date ETFs, and they are designed for people who want a simple, all-in-one investment rather than managing multiple funds.

Taxes and ETF ownership

ETFs are generally more tax-efficient than mutual funds because of how they are structured. When other investors sell their shares of an ETF, it does not trigger a taxable event for you the way it does in a mutual fund. This means you pay taxes only on the gains you personally realize when you sell your shares, not on the fund's internal trading activity.

If your ETF pays dividends (income from the stocks or bonds it holds), you will owe taxes on those dividends in the year you receive them, unless the ETF is held in a tax-advantaged account like an IRA or 401(k). Keep records of what you paid for your ETF shares and what you sold them for, because you will need that information when you file taxes.

Frequently Asked Questions

Is an ETF safer than buying individual stocks?

An ETF spreads your money across many investments, so poor performance by one company does not wipe out your investment. Individual stocks carry more risk because your return depends entirely on that one company. Neither is inherently "safe" — both can lose value — but an ETF reduces the risk that one bad choice will hurt you badly.

Can I lose money in an ETF?

Yes. If the stocks or bonds inside the ETF fall in value, your ETF shares fall too. The fund itself does not may provide any return. You can also lose money if you sell your shares when the price is lower than what you paid for them.

How much money do I need to start buying ETFs?

You need enough to buy at least one share. ETF prices vary widely — some trade for under $50 per share, others for several hundred dollars. Check the current price of the ETF you want before opening an account. Many brokerages have no minimum account balance, though some require $500 or $1,000 to start.

What is the difference between an ETF and a mutual fund?

Both hold baskets of investments, but ETFs trade during market hours like stocks, while mutual funds trade once per day after the market closes. ETFs typically have lower fees and are more tax-efficient. Mutual funds sometimes offer more active management and may have higher minimum investments.

Do I get voting rights if I own an ETF?

The ETF fund company holds the voting rights for the companies in the fund, not you as a shareholder. You own a piece of the fund, not the individual companies, so you do not vote on corporate decisions.