
If you invest in the stock market, then at least part of your money is probably in an S&P 500 index fund or with one of the companies comprising the S&P 500.
The index alone covers roughly 80% of available market capitalization, according to S&P Global. The companies that belong to it cover every industry and economic sector you can name. That’s why most financial advisors recommend investing in the S&P 500 if you want maximum diversification.