Studying the performance of contrarian strategies in Tehran stock exchange with using Fuzzy approach

During recent years, examining the performance of contrarian strategies has been taken into consideration by scholars and stock market's activists, though several evidences are available based on profitability of this type of strategies, much of them have been referred to American and European's stock markets. In current study, the act of these strategies will be examined in Tehran's stock exchange over a time spanning 2007 and 2009 by using Fuzzy approach and by computing portfolios' return comprising stock with indices such as low Price/Earning, small size, high payout ratio, low market value/book value and by cross sectional weighted data analysis method. Results show that meaning relation between valuable stock with low Price/Earning, small size, and high payout ratio is tendered offer by Fuzzy Expert System.