Investing guide
ETFs vs mutual funds
Both pool many investments. ETFs trade on an exchange during the day; mutual funds are bought and sold at the day’s closing price.
Sourced from official pages · Updated September 30, 2026📈
Investing5 sections
1 official source linked💡 Key takeaways
- Mutual funds trade at a price set once a day; ETFs trade on an exchange throughout the day.
- Both can be passive or active and both charge an expense ratio.
- ETFs may involve trading commissions or a bid/ask spread depending on your broker.
- Compare the specific fund’s cost and holdings rather than the label.
Side by side
| Mutual fund | ETF | |
|---|---|---|
| How you buy and sell | Through the fund company or a broker at the price set once a day | On a stock exchange through a brokerage, at market prices throughout the day |
| Fees to compare | Expense ratio and any sales charges or 12b-1 fees | Expense ratio; you may pay a trading commission or bid/ask spread depending on your broker |
| Strategy | Passive (index) or active | Passive (index) or active |
Which to choose
The right one depends on your account, how you invest (lump sum or regular amounts) and costs. Compare the expense ratio and holdings of the specific fund rather than the label.
Practical differences
- Minimums: some mutual funds have minimum initial investments; ETFs can usually be bought by the share.
- Automatic investing: mutual funds often make it easy to invest a set dollar amount regularly.
- Taxes: in taxable accounts, how each fund distributes gains can differ; see the fund’s tax information.
How to choose
- Decide the exposure you want (for example US stocks, bonds).
- Compare the expense ratio and holdings of candidate funds.
- Check what your brokerage or retirement plan offers.
- Consider how you will invest: lump sum or regular amounts (see dollar-cost averaging).
🔤 Key terms
| Term | Meaning |
|---|---|
| NAV | Net asset value, the price of a mutual fund share |
| Bid/ask spread | Difference between buy and sell prices for an ETF |
| Prospectus | Document describing the fund’s costs and strategy |
| Share class | A version of a fund with a particular fee structure |
⚠️ Common mistakes to avoid
- Picking an ETF over a mutual fund (or the reverse) only by the label.
- Ignoring bid/ask spreads on thinly traded ETFs.
- Trading ETFs frequently and adding costs.
- Not checking the fund’s fees.
🛠️ Try it yourself
❓ Frequently asked questions
Which is cheaper?
It depends on the fund; compare expense ratios.
Can I buy fractional shares of an ETF?
Some brokerages allow it.
Are ETFs less risky?
No; risk depends on what the fund holds.
Can ETFs be bought in an IRA?
Yes, with most brokerages.
📚 Sources
This guide is general information, not financial, tax or legal advice. Rules and limits change; confirm with the sources above or a licensed professional.