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8. Ginni Rometty
SVP, Group Executive, Sales, Marketing, and Strategy
IBM (IBM)
2009 rank: 11
Age: 53

Big Blue's stock is up-it is outperforming the S&P this year-and so is Rometty's. She added marketing and strategy oversight to her role in July, prompting speculation that she's the lead candidate to succeed CEO Sam Palmisano.

NEXT: Ursula Burns
Last updated September 30 2010: 2:47 PM ET
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