Chevron lost ground after the oil company reported a surprise decline in profit, pressured by weakness in its refining business.
Facebook moved higher. Argus Research upgraded the stock to buy from hold with a $63 price target, saying the social-networking company continues to show new growth drivers to fuel earnings for years to come.
WelllCare Health Plans fell after saying it would replace its CEO and named its chairman as interim chief as it conducts a search. WellCare also reported better-than-expected third-quarter results.
Qunar Cayman Islands doubled in its market debut. The Chinese travel website, controlled by Baidu is valued at about a billion dollars.
ATMI was halted midday. The maker of materials used in semiconductors and flat-panel displays confirmed media reports that it was exploring strategic alternatives.
Spirit Aerosystems rose after the supplier of aircraft components reported a 10 percent rise in quarterly revenue due to strong demand for commercial aircraft.
Bruker Corp fell after the maker of scientific instruments cut its full-year forecast after reporting weaker-than-expected third-quarter results.
NextEra Energy rose after the utility third quarter profit jumped a better-than-expected 68 percent.
OpenTable declined after Wunderlich Securities downgraded its stock to hold from buy.
Best Buy rose after Goldman raised its price target to $47 from $37 on expectations the consumer-electronic retailer's initiatives will drive sales and margins higher.
Office Depot and Office Max both gained after the Federal Trade Commission approved their merger.
JP Morgan and Citigroup both disclosed they are under wider scrutiny by U.S. agencies for their international operations.
Ocwen Financial fell after the mortgage servicer reported lower-than-expected quarterly earnings and revenue due to higher costs.
Mohawk Industries jumped after the flooring maker said third-quarter income jumped 69% as it benefited from acquisitions.
CEC Entertainment lost ground after the operator of Chuck E Cheese restaurants reported weaker-than-expected third-quarter results.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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