Hello Everyone, I have searched through many threads and can not find anybody else who trades using the Probability Bands. These are the levels based on each stock or indexes volatility and discussed by Kevin Haggerty in his trading manual. They give the trader various standard deviation volatility moves each day, a 65%, 80%, 88% and 95% probable high or low. You can see on May 12th the NASDAQ hit its 95% probable low and had a huge rally. This was helped by both the Semis and Biotech also being on their probability bands and reversing.