SciQuest (NYSE:SQI) was downgraded by Zacks from a "hold" rating to a "sell" rating in a report released on Friday, AnalystRatings.Net reports. According to Zacks, "SciQuest Inc. is a provider of on-demand strategic procurement and supplier enablement solutions that integrates customers with their suppliers to improve procurement of indirect goods and services. The Company's on-demand [...]