The market has varying degrees of efficiency and tends to be less efficient when price movement is erratic. Given the intraday swings of as much as 8 percentage points for the entire market in recent weeks, there are undoubtedly some babies being thrown out with the bathwater. I believe the key to investing in this sort of environment is discerning between stocks that have fallen for good reason, and those which were simply caught in the crossfire. How to tell the difference There are 2 ways stock prices ca ...