Brookdale Senior Living - The long-term facility operator declined after it cut its 2015 profit view.
W.W. Grainger - The company fell after it posted weaker-than-expected fourth-quarter earnings.
Sony - The maker of electronic equipment rose after CLSA issued a bullish report.
Universal Display - The company soared after saying it had a new license agreement with LG Display.
Seagate Technology - The hard-drive maker fell after reporting quarterly revenue below street forecasts.
Cliff Natural Resources - The miner edged higher after cutting debt and its dividend.
Norfolk Southern - The railway advanced after posting better-than-expected fourth-quarter earnings.
Energy Transfer Partners - the pipeline company declined after saying it would merge with Regency Energy Partners in a deal valued at $18 billion, including debt.
United Technologies - The supplier of technology to the building systems and aerospace industries fell after moving up its earnings release to after the close on Monday from Tuesday morning due to expected snow in the Northeast. EMC moved its report to Wednesday morning from Tuesday.
(See CNBC's Market Insider Blog)
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