In this post (Analyst reports: How to read them) Felix addresses the basic rules of reading research: check who wrote it and do your homework.
We would add:
But more importantly, is the analyst riding the hype wave (like Yankee in the old days) or do they provide actionable advice?
Special mention for market shares: whereas numbers are generally very accurate on a WW or EMEA basis, regardless of the technology. However, requesting 2 or 3 dimensional cuts from the data cube (for instance market shares for Managed Services in Denmark and Retail Banking) is asking for trouble. Do NOT EVER EVER base compensation on market share without having a discussion with the analyst on the statistical confidence interval.