FireEye’s stock rockets after Goldman swings to bullish from bearish By: MarketWatch March 23, 2017 at 15:26 PM EDT FireEye’s stock soared on heavy volume after Goldman Sachs pulled an about-face, upgrading it to a buy from a sell. Read More >> Related Stocks: Cisco Systems Fireeye Inc Fortinet Inc Palo Alto Networks Inc Standard & Poors 500