Microsoft
CEO: Steve Ballmer
June 29, 2012: $30.59
Dec. 31, 2011: $25.96
2012 Change: 17.8%
Microsoft shares fell briefly below the $30 mark in June before rising again at the end of the month. Microsoft's stock has been strong in 2012 as it prepares to launch Windows 8in the second half of the year.
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