ETFs are one of the most popular ways to invest, but many beginners are not sure what they actually are or how they differ from buying individual stocks.
The Simple Version
An ETF (exchange-traded fund) is a basket of investments that trades on the stock market like a single stock.
When you buy one share of an ETF, you are buying a small piece of everything inside that basket. The basket might contain stocks, bonds, commodities, or a mix.
How ETFs Work
An ETF is created by a fund company that decides what goes inside the basket. Some ETFs track an index (like the S&P 500), some focus on a specific sector (like technology or healthcare), and some follow a specific theme (like clean energy or dividend-paying stocks).
You buy and sell ETF shares on the stock exchange during trading hours, just like you would buy or sell a share of Apple or Tesla. The price changes throughout the day based on supply and demand.
ETFs vs Mutual Funds
ETFs and mutual funds are similar in that both hold baskets of investments. The key differences:
Trading: ETFs trade throughout the day at market prices. Mutual funds are priced once per day after the market closes.
Minimum investment: ETFs can be bought one share at a time (some brokers offer fractional shares). Mutual funds sometimes require minimum investments of $1,000 or more.
Fees: ETFs generally have lower expense ratios than actively managed mutual funds, though this varies.
Tax efficiency: ETFs are generally more tax-efficient due to how they are structured, though this is a more advanced topic.
ETFs vs Individual Stocks
When you buy an individual stock, you are betting on one company. When you buy an ETF, you are spreading your money across many companies at once.
This makes ETFs a popular choice for beginners who want market exposure without having to pick individual winners.
Types of ETFs
- Broad market ETFs: Track large indexes like the S&P 500 or total stock market
- Sector ETFs: Focus on one industry (technology, healthcare, energy)
- Bond ETFs: Hold government or corporate bonds
- International ETFs: Track markets outside the United States
- Thematic ETFs: Focus on trends like AI, clean energy, or cybersecurity
- Dividend ETFs: Hold stocks that pay regular dividends
What to Watch Out For
Not all ETFs are created equal. Some things to consider:
Expense ratio: The annual fee charged by the fund. Lower is generally better. Many broad market ETFs charge 0.03% to 0.10%.
Tracking error: How closely the ETF follows its benchmark index. Smaller tracking error means better performance matching.
Liquidity: Popular ETFs trade millions of shares per day. Less popular ones might have wider spreads between buy and sell prices.
Holdings concentration: Some ETFs are heavily weighted toward a few large companies. Check what percentage of the fund is in its top 10 holdings.
The Progressive Trailblazer helps you research the companies inside your holdings, whether they are individual stocks or part of an ETF. Educational only. Not financial advice.