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• Incyte Corp. fell 2 percent after a Citigroup analyst downgraded the drug manufacturer to “neutral” from “buy,” saying its new blood-disease drug Jakafi might not work as a long-term treatment.

• SuccessFactors Inc. soared more than 50 percent after the company agreed to be sold to German software company SAP for $3.4 billion. SuccessFactors makes software specializing in human resources tasks. The deal is part of SAP’s plan to compete with software rival Oracle Corp.