Alibaba's stock plunges after the Chinese e-commerce giant reported quarterly revenue that fell short of expectations.
Ford Motor quarterly earnings beat Wall Street earnings expectations on Thursday, and the automaker maintained its 2015 profit forecast.
Dow Chemical's profit fell 24 percent, hurt by a $500 million loss related to abandonment of a Tennessee plant by a joint venture and other charges.
Time Warner Cable's fourth-quarter profit climbed as it added a record number of subscribers, but its adjusted results missed analysts' estimates.
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