| Quick Answer An ETF (exchange-traded fund) trades on a stock exchange all day, like a share, while a mutual fund only trades once a day at a set price. ETFs are usually cheaper and more tax-friendly, but mutual funds are easier to buy in fixed dollar amounts and are the standard choice in most workplace pension plans. Both let you own a basket of investments through a single purchase. |
If you’ve ever stared at an investing app on your phone only to have your brain promptly shut down at the sight of terms like “ETF” and “mutual fund,” you’re not alone. They sound so technical, so intimidating. But the basic premise of both investment products is actually fairly simple: instead of buying a share in just one company (and hoping for the best), you buy a tiny fraction of hundreds — or sometimes thousands — of different investments. The debate should not be about what’s “better. The question is which is right for you.
What Is an ETF?
ETF stands for the exchange-traded fund. As the name suggests, an ETF is a collection of various shares, bonds, and other securities that are traded on the stock exchange. ETFs allow investors to purchase and trade them on the stock market just like individual stocks. Moreover, similar to individual stocks, ETFs can be bought and sold during the trading hours at the fluctuating prices. Investors can place limit orders and watch the prices of ETFs change minute by minute.
Most ETFs are passively managed which means that they seek to track an index, e.g., S&P 500 rather than actively managed which implies that fund managers make active decisions regarding buying and selling. Therefore, the management fee for an ETF is mostly lower than those of a mutual fund.
What Is a Mutual Fund?
A mutual fund is another pooled investment vehicle, but it operates a bit differently in that it only trades once per day, at the close of the market (around 4:00pm EST). Anything you buy or sell at this time will be executed at the single price of the closing NAV of the fund, whether you place the order at 9am or 3pm.
Mutual funds can be actively managed (a professional manager picks and chooses the fund’s holdings in an effort to beat the market) or passively managed (simply track an index). In the US, mutual funds are what most 401ks (and other employer-sponsored retirement plans) offer as their default investment type.
The Real Differences That Matter
1. How and When You Trade
This is the clearest difference. ETFs trade like stocks throughout the day. Mutual funds trade once a day at a fixed price. If you like knowing your exact price the moment you click “buy,” an ETF gives you that. If you’re happy investing on autopilot and don’t care about timing, a mutual fund works just fine.
2. Cost
Costs are where this gets interesting. And this one isn’t necessarily the flip side, as many people believe. According to Morningstar research, actively managed mutual funds have higher average fees than actively managed ETFs. At the same time, index mutual funds, on average, have lower fees than index ETFs, according to the Investment Company Institute. So there isn’t always a clear answer. When looking at the two, it’s important to look at your options individually, because a fraction of a point difference in the expense ratio can have an enormous effect on long-term returns over 20 or 30 years.
3. Tax Efficiency
This is where ETFs typically excel, they say–in a taxable account (as opposed to a tax-deferred retirement account). Because when you sell mutual fund shares, the fund often has to sell underlying investments to raise cash, creating a taxable gain for all shareholders, even if you–the seller–had nothing to do with it. ETFs are structured to avoid this problem. And that can have a big impact on after-tax returns for funds held in a taxable account, not a tax-deferred account.
4. Minimum Investment
Mutual funds typically have a dollar amount that you can invest in them, such as $100, and you’re given a certain number of shares (which could be fractional shares) based on that investment. ETFs used to require you to buy whole shares, but many brokerage platforms now allow you to buy fractional ETF shares, so the two investment vehicles are much more similar than they were even five years ago.
5. Where You’ll Actually Use Them
Most US workplace retirement plans only offer mutual funds, so if you are investing in a 401(k) you are unlikely to have an ETF option available to you, whereas if you are using a brokerage account or an IRA, both are likely to be available, and it is a matter of cost, tax situation and personal preference.
ETF vs Mutual Fund: Quick Comparison
| Feature | ETF | Mutual Fund |
| When you can trade | Anytime the market is open | Once a day, after market close |
| Typical cost | Often low, especially for index funds | Varies; index funds can be very cheap too |
| Tax efficiency | Generally more tax-efficient | Can trigger extra taxable gains |
| Minimum investment | Often one share (fractional shares increasingly available) | Fixed dollar amounts, including fractions |
| Common home | Brokerage accounts, IRAs | 401(k)s, brokerage accounts, IRAs |
So, Which One Should You Choose?
Neither ETFs nor mutual funds are inherently better; it depends on your account and your preferences.
If you are invested through an employer-sponsored retirement plan, you may not have a choice
If you have a brokerage account and want to minimize cost, maximize flexibility and tax efficiency, ETFs are often the better choice. If you want the convenience of dollar amount-based contributions and automatic purchases, a mutual fund may be better.
Frequently Asked Questions
Is an ETF safer than a mutual fund?
Neither is inherently safer. Risk depends on what the fund actually holds, not whether it’s structured as an ETF or a mutual fund.
Can I lose money in an ETF?
Yes. ETFs hold real investments like shares and bonds, so their value can go up or down depending on how those underlying investments perform.
Do ETFs pay dividends like mutual funds?
Yes. Many ETFs and mutual funds both pass on dividends earned from their underlying holdings to investors, usually on a quarterly basis.
Which is cheaper, an ETF or a mutual fund?
It depends on the specific fund. Index funds in either format can be very cheap, while actively managed mutual funds tend to cost more than actively managed ETFs on average.
Can I hold an ETF in my 401(k)?
Usually not. Most US 401(k) plans only offer a menu of mutual funds, though this is slowly starting to change with some newer plans.
