What Is an ETF?
As you continue learning about investing, you will likely encounter the term ETF. ETF stands for Exchange-Traded Fund.
For many investors, ETFs have become one of the most popular ways to invest because they combine several features that beginners often appreciate:
Diversification
Simplicity
Flexibility
Low costs
Accessibility
In fact, many investors build entire portfolios using ETFs. Understanding how ETFs work can help you make more informed decisions as you continue your investing journey.
An ETF is a collection of investments packaged together into a single fund.
Instead of purchasing one stock at a time, an investor can purchase shares of an ETF that may contain:
Dozens of companies
Hundreds of companies
Thousands of companies
When you buy one share of an ETF, you gain exposure to all of the investments held within that fund. This is one reason ETFs are often associated with diversification.
Think of an ETF Like a Basket of Fruit
Imagine a basket filled with different types of fruit. Instead of buying only one apple, you purchase the entire basket.
Now you own:
Apples
Oranges
Bananas
Grapes
Other fruit
An ETF works similarly. Instead of owning one company, you may own a small piece of many companies through a single investment.
ETFs have helped make investing more accessible for millions of people.
4 Reasons Why Many Investors Like ETFs
ETFs have become increasingly popular because they offer several potential benefits.
Diversification - Many ETFs hold numerous investments, helping reduce the risk of relying on a single company.
Simplicity - Investors can gain broad market exposure through a single purchase.
Accessibility - Many ETFs can be purchased with relatively small amounts of money.
Low Costs - Many ETFs have low expense ratios, allowing more of an investor's money to remain invested.
What Can an ETF Invest In?
Every ETF has a specific objective.
Some ETFs focus on:
The overall U.S. stock market
Large companies
Small companies
International markets
Bonds
Specific industries
Dividend-paying companies
Because there are thousands of ETFs available, it is important to understand what an ETF owns before investing.
ETFs and Index Investing
Many ETFs are designed to track an index. An index is simply a group of investments used to measure a portion of the market.
For example, some ETFs may track:
Large U.S. companies
The total U.S. stock market
International markets
Rather than attempting to outperform the market, these ETFs seek to mirror the performance of the index they follow. This approach is often known as passive investing.
ETFs Can Help Reduce Single-Stock Risk
Many beginner investors feel pressure to identify the next winning stock. The challenge is that owning only one stock can be very risky. If that company struggles, your investment may decline significantly. An ETF spreads investments across many companies. As a result, the performance of your portfolio is not dependent on the success of a single business. This diversification is one reason many long-term investors prefer ETFs over individual stock picking.
ETFs Trade Like Stocks
One feature that makes ETFs unique is how they are bought and sold. Unlike many mutual funds, ETFs trade throughout the trading day. This means investors can buy or sell ETF shares while markets are open, much like individual stocks. For long-term investors, this feature is often less important than diversification and low costs, but it is one of the key differences between ETFs and mutual funds.
ETFs Are Common in Retirement Accounts
Many investors already own ETFs through:
Roth IRAs
Traditional IRAs
Brokerage accounts
Retirement plans
As ETFs have grown in popularity, they have become common building blocks in long-term investment portfolios.
Pay Attention to Fees
Even though many ETFs are known for low costs, fees still matter. Most ETFs charge an expense ratio, which is the annual fee investors pay to help cover the costs of operating and managing the fund. The expense ratio is expressed as a percentage.
For example:
A 0.03% expense ratio means you pay approximately $0.30 per year for every $1,000 invested.
A 0.10% expense ratio means you pay approximately $1.00 per year for every $1,000 invested.
A 1.00% expense ratio means you pay approximately $10.00 per year for every $1,000 invested.
While these amounts may seem small, fees can add up over time.
Consider two investors with similar portfolios. If one investor pays significantly higher fees year after year, less of their money remains invested and available for compounding. Over a career spanning 20, 30, or 40 years, those differences can become substantial.
Many broad-market ETFs are known for having relatively low expense ratios, which is one reason they have become popular among long-term investors. The goal is not necessarily to find the lowest possible fee. Instead, it is important to understand what you are paying and how those costs may affect long-term growth.
Some investment companies, including Fidelity, even offer certain index funds with no expense ratio, allowing investors to keep more of their money invested and working toward long-term growth.
ETFs Are Not Risk-Free
While ETFs offer diversification, they are still investments. Their value can rise and fall based on market conditions.
For example:
Stock ETFs may decline during market downturns.
Bond ETFs may decline when bond markets struggle.
Industry-specific ETFs may experience significant volatility.
Diversification helps reduce certain risks, but it does not eliminate risk entirely.
ETFs and Long-Term Wealth Building
Many investors use ETFs as part of a long-term investment strategy focused on:
Retirement planning
Financial independence
Wealth building
Long-term growth
Rather than trying to predict short-term market movements, many investors contribute consistently and remain invested over time. This allows compounding and market growth to work together.
ETFs Are Popular for a Reason
Many experienced investors appreciate ETFs because they provide a practical balance between simplicity and diversification. Instead of researching and purchasing dozens of individual companies, investors can gain exposure to large portions of the market through a single investment. For beginners, this can make investing feel more manageable and less overwhelming.
A Simple Tool for Diversified Investing
ETFs have helped make investing more accessible for millions of people. They allow investors to own collections of investments, diversify their portfolios, and participate in long-term market growth without needing to select individual stocks. The key is understanding what an ETF owns, paying attention to costs, and choosing investments that align with your goals. When used thoughtfully, ETFs can become a powerful tool for retirement planning, long-term wealth building, and financial independence.