Studying the efficiency of portfolio selecting models and comparing them from the perspective of Sharpe and Treynor ratios

Optimizing portfolio is about maximizing return while controlling or reducing risk, for which various models have been created. Three of the best-known models are Markowitz, Sharpe, and Treynor, that the risk measure is used in them are variance, standard deviation, and beta coefficient. In this paper we study four innovative models and three above-mentioned models in selecting portfolio problem. The risk measure used in innovative models is based on both systematic and unsystematic risks. At the end, we implement each model and evaluate their performance on 30 companies of Iran Stock Exchange which have the highest market values and compare them from two perspectives, Sharpe ratio and Trainor ratio.