In this book, we investigate to compare average return of value and growth stock during 8 years from 2001 until 2008 in Tehran Stock Exchange. Samples include 91 firms in order to classify value and growth we used B/M. data mining for beginning book value and ending market value of stock performed. Three classes were separate. Highest and lowest classes were chosen and middle class was omitted. Average return of highest group (value stock) and lowest group (growth one) were computed .statistical method was paired samples T test. Results corroborate average value stock holding returns of one year to 7 years were greater than average growth stock holding return. This difference during 7 years was significant. On the other hands, the different average return on 8th year was not significant.