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The market's weekly winners and losers

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Everyone's a winner, right? Maybe just not investors this past week.

While the S&P 500 continues to fire on all cylinders, an economist famed for one thing—asset valuations—warns of a potential stock bubble. And "the smartest guys in the room" have had a pretty lousy five years competing against the market.

A major corporation battling shareholders over yoga pants—no peaceful protest here to make a meditating yogi proud. Investors were bent out of shape over the company's pose, and we aren't stretching the truth!

That and much more, as seen through the lens of CNBC's Executive Edge.

Read on for the list of this week's biggest market winners and losers.

—By Jeff Brown, Special to CNBC.com

Justin Poliachik | Flickr | Getty Images