Is the S&P 500 All You Need to Retire a Millionaire?

Is the S&P 500 All You Need to Retire a Millionaire?

Index fund investing is popular for a reason, but can it really deliver for investors with lofty retirement goals? The answer isn't the same for everyone, but there are some people who can absolutely reach millionaire status just by investing in the S&P 500. Obviously, the S&P 500's ability to make millionaires depends on its future performance.