Hanging Up

Shares of smartphone maker Blackberry lost roughly a third of their value Friday after first quarter earnings missed expectations. The company’s market value has shed about $3 billion since Thorsten Heins took over as CEO in January 2012.

John Raoux / AP

Thorsten Heins, president and CEO at BlackBerry holds up the new BlackBerry 10 mobile device at a conference, Tuesday, May 14, 2013, in Orlando, Fla.

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