Twitter, Microsoft rise; Zynga tumbles By: MarketWatch June 05, 2014 at 11:01 AM EDT Shares of Twitter rise on an upbeat note from Pacific Crest. Microsoft is also up on an FBR upgrade. Techs trade flat as Zynga falls. Read More >> Related Stocks: Microsoft PHLX Semiconductor Sector Index Twitter, Inc. Zynga Inc Cl A