Huntsman - The chemical maker gained after reporting quarterly profit more than doubled.
LinkedIn - The social-media company and others including Facebook and Yelp gained on the heels of Twitter's strong earnings report.
Michael Kors Holdings - The apparel company slid after Robert W. Baird downgraded the stock to neutral from outperform.
Regeneron Pharmaceuticals - The drug developer spiked on positive news for its experimental cholesterol drug being developed with French company Sanofi.
The Rubicon Project - The advertising-automation company surged after posting better-than-estimated quarterly results.
SodaStream International - The Israeli manufacturer of home-soda machines rose after reporting better-than-expected second-quarter results.
Thomson Reuters - The provider of news and information rose after tallying a better-than-expected quarterly profit.
Valero Energy - The refiner edged higher after reporting an increase in quarterly profit.
Zeltiq Aesthetics - The medical-device maker gained after projecting fiscal-2014 revenue above consensus views.
(See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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