Stocks are buoyed by a rebound in crude oil prices and a rally in health care stocks.
E2open (EOPN) is gaining Thursday after announcing it reached an agreement to be acquired by Insight Venture Partners for about $273 million.
Activision Blizzard rises sharply after declaring two of its video games ranked among the 2014 top sellers in the U.S. and the world. E2open soars as it seeks a buyer.
Cisco and Twitter both post gains, despite a broad downturn in the markets. Find out why.