Apple joins the Dow Jones Industrial Average

On March 19 Apple will join the Dow Jones Industrial Average, replacing AT&T. The Dow Jones Industrial Average is an index indicating Wall Street's current performance. Apple is now the largest corporation in the world (worth about $740 billion) and a technology leader, so it is an obvious choice for the Dow Jones Industrial Average. AT&T is worth about $174 billion.

Other companies in the DJIA are General Electric, Walmart, Cisco Systems, Microsoft, IBM, Intel, American Express and Visa.