Price Patterns are formations which appear on commodity and stock charts which have shown to have a certain degree of predictive value.With Dow Theory, there is an inevitable lag between the actual turn in the primary trend and the recognition of the change in trend.Whereas, in price patterns the trends are strictly defined which helps to identify the characteristics of price movements easily and it is helpful for long term as well as short term trading. There are many price patterns such as Double top, Double bottom, Head & shoulder pattern , Inverted head and shoulder , rounding bottom/cup pattern , A flag chart pattern , Triangle patterns .