The S&P 500 is made up of 11 distinct sectors, though just a few dominate it. The tech industry today makes up 32% of the entire value of the stock index — $20 trillion out of a total $63 trillion.

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. The tech-heavy Nasdaq 100 is inching higher, chipping away at the ...

This shows every company in the S&P 500, sized by its market value. The stock index is made up of 11 distinct sectors, though just a few dominate it. The tech industry today makes up 32 percent of the ...