Tech's Top Turnaround Artists

By Bloomberg Rankings and Marcus Chan - 2013-10-18T00:20:24Z

Courtesy Rambus

Company Symbol % Change
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15. Ronald Black, Rambus

Before: Rambus's total return was down 70.5 percent in the two years before the company announced Ronald Black would be the new CEO. By comparison, the S&P 500's total return was 25.5 percent during that same period.

After: Since Black's appointment in June 2012, Rambus's stock  had a total return of 66.8 percent as of Oct. 11. By comparison, the S&P 500 had a total return of 30.4 percent during the same period.