Investigating the effects of investors' sentiments on stocks valuation

The purpose of this study is to examine the impact of investor's sentiments and the volatilities of profits on the stock price of companies. To achieve this goal, using the data of 95 companies during the financial periods from 2011 to 2016, the effect of the investor's sentiments and the volatilities of profits on the Expected Earnings Growth rate and required rate of return has been investigated using multiple regression model. The results of the study showed that the investor's sentiments affect the Expected Earnings Growth rate and required rate of return .The profit volatilities variable as a factor in the uncertainty of information does not have a moderating effect and does not affect the relationship between the investor's sentiments and stock prices.