In this article, investigate between market Return & stock Return. The finding research show that, time series result, is significant.

The main goal of this research was to investigate the capability of past style Return in predicting future Return in comparison with past Return. To achieve this goal, based on the book-to-market value and the company size, 150 companies data listed in Tehran Stock exchange in period from 1384 to 1393 were used in the study. In this relation style Return and stock Return were independent variable and (1, 3, 6, 12) future month stock Returns was dependent variable. After controlling size, book-to-market value by using two stage Fama and Mack Beth Regression (1973) the data were analyzed. The result of the study indicated that the past 6 month style Return can predict future Return (1, 3and 6) better than past 6 month Return. Furthermore there was a significant relationship between the past 6 and 12 month style Return and future month Return (1, 3, 6, and 12). On the other hand, the ability to predict the future Return by 12 past month style Return was better than 6 past month Return.

This research investigates the effect of time on idiosyncratic Return and idiosyncratic Return volatility in the companies listed in Tehran Stock Exchange during a period of twelve years (from 2001 to 2012). This study uses three-factor model of Fama and French (1993) to measure the idiosyncratic Return. Data analysis for this study is conducted using multiple linear regressions with use of panel data. The results show that the idiosyncratic Return and idiosyncratic Return volatility has decreased over time. This result means that investment risk in Tehran's stock market has gradually decreased over the last twelve years.

Return poem reached its apogee in Qajar Era. In that era, Shahs employed panegyric poem in their propagandistic Organizatisn and also poets pay more attention to panegyric odes following masters of Khorasani style. In the meantime Aboonasr Fathollah Khan Sheibani (1240-1308 Hejira) had a quite different situation. He had been in the presence of Mohammad Shah and Nasereddin Shah at first and had panegyrized them, but he was send away from the court, when Nasereddin Shah came to the throne, and wandered about different towns for a long time. Also he treaded on the dervishes Coarse for some times and finally engaged in cultivating a desert around Natanz with the name of (Eshgh Abad) for 25 years, but it was also destroyed by some rebels. He complained against the unjustice in the capital, but it didn’t yield any profit. All of these caused him to become one of the critics of Nasereddin Shah,s era and to be distincted from other poets of Return Period. In this respect.

The aim of this study was to evaluate the impact of non-interest income on asset Returns, standard deviation of Return on assets, Return on assets adjusted, is. This study literature study and analytical reason and based on panel data analysis (panel data) is. In this study, 117 financial companies listed on the Tehran Stock Exchange during the period 1389 to 1393. Software to analyze the results of the study, 7 Eviews used. The results confirming the first hypothesis suggests that the non-interest income and a Return on assets of the company, there was a significant relationship. Also according to the analysis made in connection with the second hypothesis study came to the conclusion that Non-interest income and standard deviation of Returns between corporate assets, there was a significant relationship. Following the results of verification third hypothesis suggests that the non-interest income and adjusted Return on assets of the company, there was a significant relationship.

In this research, in addition to the investigation on the relationship between accruals and future Return, the effect of intangible Return in prior periods on the relationship between accruals and future Return was examined. For this intent, a sample of 80 firms listed in Tehran Stock Exchange during the period of 1999-2010 was examined. For hypotheses testing, the method of multivariate and univariate regression analyse with pooling data analysis is used.The results showed that there was a meaningful and negative relationship between accruals and future Return (accrual anomaly). In addition, the intangible Return in prior periods is effective in the relationship between accruals and future Return. In other words, using this variable in the research model, the meaningful and negative relationship between accruals and future Return disappears.

Markowitz, in his Portfolio selection theory, stated that investors select their portfolios according to two criteria of risk and Return. Accordingly, he presented his mathematical model. One of the criticisms of this model is that while investors, practically, consider different criteria in forming their portfolios, it only considers the Return mean and Return standard deviation. Liquidity is one of the most important criteria in forming portfolios. The present research aims at merging this criterion with Markowitz’s suggested model in Iran’s market using liquidity filtering, liquidity constraints and thus forming a model by using of which investors form a portfolio whose Return, risk and liquidity is optimal. The research results show that liquidity in high levels has an effect on investors decisions and their efficient frontiers. 

The bubble in the stock market and in general in all markets is a real phenomenon that can cause losses to investors. The main problem facing each investor in the capital market is the decision to select the securities for investing and creating an optimal portfolio of stocks. Hence, stock valuation models have long been used by researchers and investors. Solving valuation puzzle reveals the need to develop a comprehensive model that describes the abnormal Return. In this regards, although many efforts have been made and various models have been developed, none of these models has been able to fully explain this abnormal Return. In this research, a pricing model in bubble conditions and an evaluation of the effective factors on stock Returns are presented using the Fama-French model. For this purpose, the sample included 81 listed companies in the Tehran Stock Exchange( TSE) between 2009 and 2013, which have been selected. The results of this study reveal that among the five factors of the market, firm size, book value to price, momentum and bubble, only two factors of momentum and bubble affect the abnormal Returns.