Technology companies now account for nearly 40% of the S&P 500 and are set to end the year eclipsing a record of 37% from 1999 (Amrith Ramkumar/Wall Street Journal)

Amrith Ramkumar / Wall Street Journal:
Technology companies now account for nearly 40% of the S&P 500 and are set to end the year eclipsing a record of 37% from 1999  —  Companies that do everything from manufacturing phones to operating social-media platforms now account for nearly 40% of the S&P 500