ارزيابي روند بازدهي سهام شركتهاي خصوصي سازي شده از طريق بورس اوراق بهادار

The Stock Retrun Trend Analysis of Governmental Companies Privatization through Bourse

One of the most important goals of privatization in different countries is to improve the productivity and efficiency. Therefore, present study is conducted to investigate the effects of privatization of state owned companies and analyzing the stock returns of such companies transferred through stock market by an empirical-descriptive methods. By reviewing financial statements of privatized companies, Tehran stock exchange year books, stock returns of companies before and after privatization, required data is collected, then non- parametric statistical tests is conducted on data using SPSS software. There is a significant difference between the stock returns of privatized companies before and after privatization. There, is also a significant difference between the companiesʹ studied returns in a five three-years periods division. The highest increase is in the first three years and the highest decrease was in the fourth three years after privatization.