There comes a point in market downturns when investors throw in the towel and begin dumping stocks at any price, just to get out and end the pain. These events typically come after longer and deeper routs, but Tuesday’s rout felt a lot like capitulation. It had many of the characteristics of a turning point. One thing is certain in equity investing and that is nothing is certain. Historical studies of market corrections are helpful to understand their general framework, but there is no magical formula to trigger getting out or in.