Over long periods, the S&P 500 benchmark index has produced annualized returns of about 10%, and you might be surprised at the wealth-building potential of performance like this. In this video, Certified Financial Planner® Matt Frankel discusses what all investors should know about index fund investing, the "big three" S&P 500 index funds, and whether you can become a millionaire with just S&P 500 index funds. 

*Stock prices used were the morning prices of Feb. 27, 2023. The video was published on March 1, 2023.