If you pay attention to analyst’s ratings of stocks, you know that the lowering of a stock’s rating by an analyst may be a sign of turbulent waters ahead. Lydall, Inc.’s (NYSE: LDL) stock went from a buy rating to a neutral rating by Sidoti towards the end of last month and investors were beginning to become concerned. At the time, the company was moving at a 50-day average of $14.82 with $8.79 and $15.93 being the 52 week low and high respectively..........