The technology companies nicknamed the "Magnificent Seven" have a combined value of $17.2 trillion, which represents one-third of the entire value of the S&P 500 (SNPINDEX: ^GSPC). Those stocks ...

Over a third of the S&P 500's value is now concentrated in the "Mag 7" — a handful of huge companies that sell AI technology.

The "Magnificent Seven" stocks provided more than half of the S&P 500's gains last year. These companies aren't known for their dividends, but they actually return massive amounts of money to ...