The current research aims to investigate the effect of investment style, profit sharing policy and investment opportunities on the performance of investors An institution has been made in the Tehran Stock Exchange. The statistical population of the research includes all manufacturing companies admitted to the stock exchange During the period of 1388 to 1394, Tehran's securities reached 52 companies with the imposed restrictions. For analysis The data was used using the panel data method with the help of Eviews and Stata software. In this regard, the performance of institutional investors from the total Their investment percentage, investment styles from the ratio of book value to market value, investment opportunity from the growth ratio of assets The total and concentration of ownership is calculated from the ratio of the largest shareholder. The research results showed that investment styles, politics Profit sharing and investment opportunities have a significant effect on the performance of institutional investors, and these effects differ according to the type of industry Is. Also, between the performance of institutional investors with a growth style in companies with high investment opportunities and dividends There is a significant relationship between the performance of institutional investors with growth style in companies with investment opportunities. No significant relationship was found between low and high dividends. In addition, between the performance of institutional investors with value style in companies with There is a significant relationship between low investment opportunities and high dividends, but companies with high investment opportunities and dividends A low division does not have a significant effect on the performance of this group of institutional investors.
