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Most Valuable Company

Members of the media preview the new iPad during an Apple product launch event at Yerba Buena Center for the Arts on March 7, 2012. (Kevork Djansezian/Getty Images)

Apple Market Value Hits $600B For First Time

Only one other company has been worth $600 billion—Apple’s old sparring partner Microsoft Corp. It reached that valuation for 13 trading days around the turn of the millennium, at the peak of the technology stock mania.

04/10/2012