EMC
CEO: Joe Tucci
June 29, 2012: $25.63
Dec. 31, 2011: $21.54
2012 Change: 19.0%
EMC shares ballooned almost 39 percent in the first quarter but lost some of that air in the second quarter. Still, as the company gained share in the controller-based disk storage market according to Gartner, its stock is up 19 percent for the year.
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