Test the effectiveness of internal and external methods of financing on the real total returns of stock

The purpose of this study is to measuring the the effect of financing approaches on the total real rate of return of the Companies listed in Tehran stock exchange of listed companies in Tehran stock exchange. In this regard, we have tried to test some variables such as, cost of capital, Retained Earning, leverage, Profitability, firm’s Size to measure their impact on total real rate of return. In this study, at the first step there are 43 companies were studied in the field of producing companies and then there 39 companies were examined in the field of petrochemicals in the period from 1390 to 1394. At the next step, data is extracted from the financial statements of companies and then is analyzed by Eviews software and using panel data approach. The results show that research’s variables (incloading: cost of capital, Retained Earning, leverage, Profitability, firm’s Size) have positsve impact firm’s total real rate of return. It can be concluded that the relationship between financing approaches and independent variables. Finally, some recommendations are presented to inform shareholders and investors in this fims on how to use financing approaches.