Apple stock starts trading as part of Dow Jones

March 20, 2015 at 12:00a.m.

Associated Press

NEW YORK

The world’s most-valuable company is now a member of the Dow Jones industrial average.

Apple Inc. was added to the Dow after the market closed Wednesday. The Dow began trading with Apple stock when the markets opened Thursday.

Created in 1896, the Dow is an index that tracks 30 stocks. It is meant to reflect the U.S. economy and markets.

The iPhone maker replaces AT&T.

Apple, based in Cupertino, Calif., has a market value of $748 billion. That’s more than double the value of Exxon Mobil, the world’s second-most-valuable company.