Abstract

The present research aims at investigating and comparing the relationship between coefficient of variations of operating income and comprehensive income with the stock return volatility. The statistic population includes the companies listed in Tehran stock exchange. The stock return volatility is the dependent variable and the company size, company age, stockholders’ debt equity ratio, operating cash to debt ratio and market value to book value ratio are the controlling variables of the study. This research is an applied descriptive correlational study and the hypotheses were tested by multiple linear regression and Wong test. The results obtained from the study of 155 companies selected as the sample in the interval of 2013 to 2018 revealed that there is positive and meaningful relationship between the coefficient of variations of operating income, net income and comprehensive income with the stock return volatility. Furthermore, there observed no difference between the relationship between coefficient of variation of operating income, net income and comprehensive income with the stock return volatility.