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What are ETFs?

By Aparna Gill, CFA, CFP 8 January 2025 3 min read

In recent years, exchange-traded funds (ETFs) have gained immense popularity among both seasoned investors and newcomers alike. These investment products combine the diversifying strengths of mutual funds with the flexibility of stocks, offering a cost-effective way to build a robust and personalized portfolio.

This article explores the fundamentals of ETFs, highlighting their primary features, types and benefits. Whether you’re just starting out or seeking to refine your investment strategy, understanding ETFs can empower you to make informed decisions in a dynamic market landscape.

 

What are ETFs?

An ETF is a type of investment product that pools the money of many investors with a common objective. The pooled funds are invested in a mix of underlying securities, which may include stocks, bonds, and cash among other asset classes. In this way, an ETF is very similar to a mutual fund, which is another common type of investment vehicle. 

One of the key distinctions between the two lies in how they are traded. ETFs are traded throughout the day on a stock exchange—much like individual stocks—which is reflected in their name: "exchange-traded funds." This differs from trading a mutual fund, which can only be done at the end of the trading day when its market value is determined.

You can think of ETFs like pre-made meal kits available for a wide variety of dishes and cuisines that can be purchased at a grocery store anytime of the day. Rather than shopping for all the necessary ingredients, you can pick up a meal kit tailored to your preferred dining choice with everything conveniently packaged together. Similarly, ETFs bundle different investments into such a package, saving you the hassle of picking and managing each one separately. 

 

Evolution of ETFs 

ETFs were first introduced in the early 1990s as a financial innovation designed to combine the benefits of both individual stocks and traditional mutual funds. They initially focused on passive investment strategies, such as tracking broad stock market indices like the S&P 500. 

Throughout the late 1990s and 2000s, the ETF market expanded rapidly, offering diverse options like sector-specific, bond, and international ETFs. Actively managed ETFs were introduced in 2008, and innovations like smart beta (factor), alternative and thematic ETFs followed.

Some of the main, high-level categories of ETFs include, but are not limited to:

(Click on each category for more information)

Today, these varied ETF strategies allow investors to tailor their portfolios to their specific financial goals, whether seeking broad market exposure, sector-focused growth, or active management.

 

Benefits of investing in ETFs

ETFs offer a wide range of benefits that can make them an attractive investment choice for both beginner and seasoned investors. The key benefits of ETFs include:

  • Diversification and risk management: ETFs provide exposure to various asset classes across geographies and sectors of the global market making them a valuable tool for portfolio diversification.

  • Cost-effectiveness: Since most ETFs are passively managed, they often have relatively low management fees compared to mutual funds, which tend to be predominantly actively managed. The cost of an active ETF and an active mutual fund would be very similar excluding potential trailing commissions.

  • Trading flexibility: ETFs can be bought and sold on an exchange whenever the market is open at the current market price. This differs from trading a mutual fund, which can only be done at the close of the market when its market value is determined.

  • Tax efficiency: Passive ETFs tend to realize fewer capital gains than actively managed mutual funds due to less frequent trading. Beyond this, ETFs may still offer greater tax efficiency compared to a mutual fund as they are traded like stocks, with their units often being exchanged among investors and not requiring the fund to sell their positions, potentially triggering capital gains.

 

Final thoughts

Just as a meal kit saves you time and effort in the kitchen, ETFs simplify the investment process, allowing you to access a wide variety of asset classes and investment strategies with ease. Unique distinctions such as the ability to be bought and sold through the day and potential tax efficiencies may also be attractive to certain investors. Understanding these basic features of an ETF is an important first step in determining if and how ETFs make sense within your investment portfolio.

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