بررسي رابطه بين نسبت هاي سودآوري و ساختار سرمايه با نرخ بازده سهام (مورد مطالعه: شركت هاي سيماني پذيرفته شده در بورس اوراق بهادار تهران طي سال هاي 84-82)

Investigating the Relationship Between Profitability Ratio, Capital Structure and the Rate of Stock Return Case: Concrete companies accepted in Tehran stock exchange during the years between 1382- 1384

The main purpose of this study has been to investigate if there is a significant relationship between the profitability ratio, capital structure, and the rate of stock return. To do this, first, a definition of the rate of stock return, profitability ratio, and ratio of the companyʹs capital structure has been provided and then a t-test, f-test and correlation computations have been calculated. The related data have been collected from the concrete companies which have been active in Tehran stock exchange for thee years. The population of this study includes all of the concrete companies which have been accepted in Tehran stock exchange during the mentioned period. After selecting the related companies, we calculated the ratio by conducting a linear and non-linear regression. The results indicate that there is not a significant relationship between the ratio of profitability, capital structure, and the rate of stock return in concrete companies accepted in Tehran stock exchange during the years 1382- 1384.