Alibaba (BABA) rival JD.com (JD) was initiated at Goldman Sachs Monday, Stratasys (SSYS) was downgraded and FireEye's (FEYE) price target was cut. JD.com, China's largest online direct sales company with a website similar to Amazon's (AMZN), was given a buy rating and 37 price target at Goldman. Ahead of China's Nov. 11 Singles Day online shopping event, regulators there agreed last week to hear complaints from JD.com, which accuses Alibaba of