What Is an ETF? How Exchange-Traded Funds Work for Beginners

An ETF, or exchange-traded fund, is a basket of investments, such as hundreds of stocks or bonds, that you can buy and sell on the stock market in a single trade, just like a share of a company. One share of an S&P 500 ETF, for example, gives you a small piece of 500 companies at once. ETFs are popular because they are cheap, diversified and easy to buy at almost any brokerage.

How an ETF works

A fund company, like Vanguard, BlackRock (iShares) or State Street, creates the ETF and buys the investments it holds. It then issues shares that trade on an exchange throughout the day. The price of each share follows the value of everything inside the fund.

Large financial firms called authorized participants can create or redeem ETF shares in big blocks by swapping them for the underlying stocks. This keeps the ETF’s price very close to the value of its holdings, and it is one reason ETFs are so tax-efficient.

Types of ETFs

• Index ETFs: track a market index like the S&P 500 or the total US market. The most common and usually the cheapest. See what is the S&P 500.
• Bond ETFs: hold government or corporate bonds for income and stability.
• International ETFs: stocks from other countries or the whole world.
• Sector ETFs: one industry, like technology, healthcare or energy.
• Dividend ETFs: companies that pay steady dividends. Compare two popular ones in SCHD vs JEPI.
• Commodity ETFs: gold, silver or oil. See why gold is going up.
• Crypto ETFs: Bitcoin and Ether. See Bitcoin ETF vs buying Bitcoin.
• Leveraged and inverse ETFs: designed for short-term trading, they can lose value fast and are not meant for long-term investors.

Why investors like ETFs

• Low cost: broad index ETFs often charge 0.03% to 0.10% a year, or $3 to $10 on every $10,000.
• Instant diversification: one purchase spreads your money across hundreds or thousands of companies.
• Tax efficiency: ETFs rarely pay out capital gains distributions, which helps in taxable accounts.
• Flexibility: trade any time the market is open, at any brokerage, often with no commission and fractional shares.
• Transparency: most ETFs publish their holdings every day.

Downsides to watch

• Easy to overtrade. Being able to trade all day can tempt people into reacting to every headline.
• Not all ETFs are cheap or simple. Niche, actively managed and leveraged ETFs can charge 0.5% to 1% or more and carry big risks.
• Bid-ask spreads. Small, rarely traded ETFs can have a gap between buy and sell prices. Large ETFs have tiny spreads.

ETF vs mutual fund vs individual stocks

Mutual funds also hold baskets of investments but trade once a day after the market closes, often have minimums, and can be less tax-efficient. Individual stocks give you full control but concentrate your risk. Our guides on index funds vs ETFs vs mutual funds and ETFs vs individual stocks go deeper.

How to buy your first ETF

1. Open an account at a brokerage. For retirement savings, a Roth IRA is a great start.
2. Pick a broad, low-cost ETF, like a total market or S&P 500 fund. See best index funds for beginners.
3. Enter the ticker, such as VTI or VOO, and the dollar amount or number of shares.
4. Use a limit order if you want to set the most you will pay.
5. Keep adding regularly and leave it invested.

See how much fund fees cost over time with our investment fee calculator.

Frequently asked questions

Are ETFs safe?

A broad index ETF is diversified, but its value still rises and falls with the market. The ETF structure itself is well regulated; your money is held separately from the fund company’s own assets.

Do ETFs pay dividends?

Yes. ETFs pass along dividends from the stocks they hold, usually quarterly. You can have them reinvested automatically at most brokers.

How much money do I need to buy an ETF?

With fractional shares, as little as $1 at many brokers. Otherwise, the price of one share.

When was the first ETF created?

The first US ETF, SPY, launched in 1993 and tracks the S&P 500. ETFs now hold more than $10 trillion in the US alone.

This article is general information, not financial advice.