Exchange-traded funds, or ETFs, are one of the best investment vehicles available for both beginners and experienced investors. They offer broad diversification, low costs, and flexibility. This guide covers everything you need to know to start investing in ETFs in 2026.
What Is an ETF?
An ETF is a collection of securities, like stocks or bonds, that trades on a stock exchange just like a single stock. Most ETFs track an index, such as the S&P 500, and hold all or most of the stocks in that index in proportion to their market weight. When you buy one share of an ETF, you get exposure to all the securities inside it.
For example, buying one share of a S&P 500 ETF gives you a tiny piece of ownership in 500 of the largest US companies, including Apple, Microsoft, Amazon, and hundreds more.
Why ETFs Are Popular
Diversification
A single ETF can hold hundreds or thousands of stocks. This instantly reduces your risk compared to owning individual stocks, because if one company performs poorly, it is just a small fraction of your total investment.
Low Costs
Most broad index ETFs have expense ratios (annual fees) of 0.03% to 0.20%, far lower than actively managed mutual funds that often charge 0.50% to 1.00% or more. Over decades, this difference compounds into tens of thousands of dollars.
Tax Efficiency
ETFs are structured in a way that typically generates fewer taxable events than mutual funds. This makes them particularly well-suited for taxable brokerage accounts.
Flexibility
ETFs trade throughout the day like stocks, so you can buy or sell at any price during market hours. Mutual funds only price once per day after the market closes.
Types of ETFs
Broad Market ETFs
These track the entire US stock market or a major index like the S&P 500. Examples include VTI (Vanguard Total Stock Market ETF) and SPY (SPDR S&P 500 ETF). These are the core of most long-term investment portfolios.
International ETFs
Provide exposure to stocks outside the US. VXUS (Vanguard Total International Stock ETF) and EFA (iShares MSCI EAFE ETF) are common choices for international diversification.
Bond ETFs
Track bond indexes and provide more stability than stock ETFs. BND (Vanguard Total Bond Market ETF) and AGG (iShares Core US Aggregate Bond ETF) are popular choices.
Sector ETFs
Focus on specific industries like technology, healthcare, or energy. These can be used to tilt a portfolio toward sectors you believe will outperform.
How to Buy ETFs
Step 1: Open a Brokerage Account
You need a brokerage account to buy ETFs. For retirement savings, open a Roth IRA or traditional IRA. For general investing, open a taxable brokerage account. Major brokerages like Fidelity, Vanguard, and Schwab offer commission-free ETF trading and no account minimums.
Step 2: Fund Your Account
Link your bank account and transfer money to your brokerage account. The transfer typically takes one to three business days.
Step 3: Research and Choose ETFs
For most long-term investors, a simple three-fund portfolio works well:
- A US total stock market ETF (like VTI)
- An international stock ETF (like VXUS)
- A bond ETF (like BND)
Adjust the proportions based on your age and risk tolerance.
Step 4: Place Your Order
Search for the ETF by its ticker symbol. You can buy as little as one share, or fractional shares at many brokerages. Use a market order to buy at the current price or a limit order to specify the maximum price you are willing to pay.
How Much Do You Need to Start?
Many ETFs have share prices between $50 and $500. With fractional shares at brokerages like Fidelity and Schwab, you can start with as little as $1. There are no account minimums at most major brokerages.
Common ETF Investing Mistakes
- Buying too many ETFs with overlapping holdings
- Chasing recent performance and buying sector ETFs after big runups
- Paying high expense ratios when cheaper alternatives exist
- Selling during market downturns instead of staying invested
- Trading frequently instead of holding for the long term
The Bottom Line
ETFs make diversified, low-cost investing accessible to everyone. A simple portfolio of two or three broad index ETFs, held consistently over many years, has historically outperformed the majority of actively managed funds. Start with a small amount, keep costs low, and stay the course through market ups and downs.