Exchange-traded funds (ETFs) are an easy way to begin investing. They are fairly simple to understand and can generate impressive returns with minimal expense and effort. They are also easy to buy and sell. Here's what you should know about ETFs, how they work, and how to invest in them.

What is an ETF?
An ETF allows investors to buy many stocks or bonds at once. People buy shares of ETFs, and the money is invested according to a certain objective.
For example, if you buy an S&P 500 ETF, your money will be invested in the 500 companies in that index. As a result, your investment's performance should roughly match that of the index over time.
ETFs versus mutual funds
One common question is how ETFs differ from mutual funds since the basic principle is the same. The key differences between these two types of investment vehicles have to do with how you buy and sell them.
- Mutual funds are priced once per day, and you typically invest a set dollar amount, such as $1,000.
- Mutual funds can be purchased through a brokerage or directly from the issuer.
- ETFs trade just like stocks on major exchanges such as the New York Stock Exchange (NYSE) or the Nasdaq Stock Exchange.
- Instead of investing a specific dollar amount in an ETF, you simply buy shares of the ETF like you would buy shares of any stock.
- ETF share prices continuously fluctuate throughout the trading day.

Understanding ETF basics
Before we get any further, there are a few concepts that are important to know before you buy your first ETFs.
- Passive versus active ETFs: There are two basic types of ETFs. Passive ETFs (also known as index funds) simply track a stock market index, such as the S&P 500. Alternatively, active ETFs hire portfolio managers to invest their money. The key takeaway: Passive ETFs aim to match an index's performance, while active ETFs want to beat it.
- Expense ratios: ETFs charge fees, known as the expense ratio. You'll see the expense ratio listed as a percentage. For instance, a 1% expense ratio means you'll pay $10 in annual investment fees for every $1,000 you invest. To be clear, this isn't a fee you have to pay -- it is simply reflected in the ETF's performance over time.
- Dividends and DRIPs: Many ETFs pay dividends. For example, an S&P 500 ETF receives dividends from many of the 500 stocks it owns and passes those along to investors. You can choose to have your dividends paid as cash or automatically reinvested in additional shares of the same ETF through a dividend reinvestment plan (DRIP).
How ETFs work
Think of ETFs as having some features of stocks and some features of mutual funds.
ETFs trade just like stocks on major exchanges like the New York Stock Exchange (NYSE) and Nasdaq. They have a share price that fluctuates throughout the trading day, and investors buy a certain number of shares.
Like mutual funds, ETFs are designed to pool investors' money together to invest for a common purpose. For example, an S&P 500 ETF would allocate the fund's money proportionally to the 500 companies that make up the popular benchmark index.
Understanding ETF taxes
If you buy ETFs in a standard brokerage account (i.e., not a retirement account), you should know that they could result in taxable income. Any gains you make from selling an ETF will be taxed according to capital gains tax rules, and any dividends you receive will likely be taxable as well.
Of course, if you invest in ETFs through an individual retirement account (IRA), you won't have to worry about capital gains or dividend taxes. In a traditional IRA, money in the account is considered taxable income only after it is withdrawn, while Roth IRA investments aren't taxable at all in most cases.
How much money do you need to be able to invest in ETFs?
ETFs don't have minimum investment requirements -- at least not in the same sense that mutual funds do. However, ETFs trade on a per-share basis. Unless your broker offers the ability to buy fractional shares of stock, you'll need at least the current price of one share to get started.
Pros and cons of ETFs
Let's look at some pros and cons of investing in ETFs.
Pros:
- ETFs provide exposure to a variety of stocks, bonds, and other assets, typically at a low expense.
- ETFs take the guesswork out of stock investing. Many ETFs are index funds, which allow investors to match the performance of a certain benchmark index over time.
- ETFs are more liquid (i.e., easy to buy and sell) than mutual funds. Online brokers make it easy to buy or sell ETFs with a simple click of the mouse.
- It can be extremely complicated to invest in individual bonds on your own, but a bond ETF can make the fixed-income portion of your portfolio very easy.
Cons:
- Since ETFs own a diverse assortment of stocks, they don't have quite as much total return potential as individual stocks.
- ETFs are often low-cost, but they aren't free. If you buy a portfolio of individual stocks on your own, you won't have to pay any management fees.
Criteria to choose an ETF
There are literally thousands of ETFs available to invest in right now. In fact, the number of ETFs recently surpassed the number of publicly traded stocks for the first time ever. So, how do you find the right ETFs for you?
Here are some of the things to consider:
- Investment objective - This is the most important consideration. Do you simply want passive exposure to the entire stock market? Do you want exposure to a certain sector? Do you want to invest in a specific trend, like artificial intelligence?
- Active versus passive - Do you want to simply track an index's performance over time, or do you want fund managers who try to beat a benchmark index?
- Fees - You can find a basic S&P 500 ETF that has a 0.03% expense ratio, or you can find a large-cap ETF that has almost the same portfolio and charges 1%. Of course, there are some good reasons to choose a higher-cost ETF, such as if you want to invest in a highly specialized index. But if you find an ETF that meets your needs, it's worth checking if there's another that does essentially the same thing for a lower cost.
Company name | Current price |
---|---|
Vanguard S&P 500 ETF | $617.65 |
Schwab Strategic Trust - Schwab U.s. Mid-Cap ETF | $29.92 |
Vanguard Russell 2000 ETF | $99.89 |
Schwab Strategic Trust - Schwab International Equity ETF | $23.64 |
Schwab Strategic Trust - Schwab Emerging Markets Equity ETF | $33.59 |
Vanguard Whitehall Funds - Vanguard High Dividend Yield ETF | $140.98 |
Schwab Strategic Trust - Schwab U.s. REIT ETF | $21.67 |
Schwab Strategic Trust - Schwab U.s. Aggregate Bond ETF | $23.69 |
Vanguard Scottsdale Funds - Vanguard Total World Bond ETF | $70.29 |
Invesco QQQ Trust | $611.38 |
Related investing topics
Let your ETFs do the hard work for you
It's important to keep in mind that ETFs are generally designed to be maintenance-free investments. Newer investors tend to have a bad habit of checking their portfolios far too often and making emotional, knee-jerk reactions to major market moves.
In fact, the average fund investor significantly underperforms the market over time, and overtrading is the main reason.
So, once you buy shares of some great ETFs, the best plan is to leave them alone and let them do what they're intended to do: produce excellent investment growth over long periods of time.