Mutual funds and ETFs are both bundles of investments, but they work differently. It's like Uber vs. Lyft — same concept, different execution. For most teens, ETFs are usually the better choice, but here's why.
What Are Mutual Funds?
A mutual fund pools money from lots of investors and uses it to buy a portfolio of stocks, bonds, or other investments. A professional manager decides what to buy and sell.
Key features:
- Trade once per day (at market close)
- Often have minimum investments ($1,000-$3,000)
- Can be actively managed (someone picks stocks) or passively managed (tracks an index)
- Fees vary widely (0.03% for index funds to 1-2% for actively managed)
ETFs vs. Mutual Funds: The Key Differences
| Feature | ETFs | Mutual Funds |
|---------|------|-------------|
| Trading | All day, like stocks | Once per day at market close |
| Minimum investment | Often $1 (fractional shares) | Often $1,000-$3,000 |
| Fees | Usually lower | Varies (can be high) |
| Tax efficiency | More efficient | Less efficient |
| Buying | Through any brokerage | Sometimes limited to specific companies |
The bottom line: ETFs are more flexible, cheaper, and easier to buy. That's why they've been exploding in popularity.
When Mutual Funds Still Make Sense
Despite ETFs being the trendy choice, mutual funds aren't dead:
- In retirement accounts: Many 401(k) plans only offer mutual funds.
- Auto-investing: Some mutual funds let you set up automatic purchases more easily.
- Specific index funds: Vanguard's VTSAX (Total Stock Market mutual fund) is essentially the same as VTI (the ETF version). Same returns, same fees.
Fun fact: Vanguard's index fund mutual funds and their ETF equivalents actually share the same underlying portfolio. Same thing, different wrapper.
The Verdict for Teens
Go with ETFs unless you have a specific reason not to. They're:
- Easier to buy with small amounts
- Available on every teen-friendly platform
- Lower fees on average
- More transparent (you can see holdings daily)
Start with a broad market ETF like VTI or VOO. If you want to learn more about what to buy, check our building your portfolio guide.
The most important thing isn't ETF vs. mutual fund — it's that you start investing at all. Pick either one and you're already ahead.