ความสัมพันธ์ระหว่างความสามารถในการทำกำไรกับอัตราผลตอบแทนจากส่วนต่างราคาหุ้นของบริษัทในหมวดธุรกิจก่อสร้าง (CONS) ที่จดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทย

Abstract

           The objective of this study was to study the relationship between profitability and rate of return in capital gain yield of constructional industry group companies (CONS) listed in the Stock Exchange of Thailand. The research was conducted by analyzing the data collected from 18 companies and interview local investors in constructional industry group listed in the Stock Exchange of Thailand. The results of this study were as follows:  1) The Profitability Ratio of Return on Asset (ROA) had positive relationship with rate of return in capital gain yield of Nawarat Patanakarn Public Company Limited at a significant level of 0.001.  2) The Profitability Ratio of Return on Equity (ROE) had positive relationship with rate of return in capital gain yield of Nawarat Patanakarn Public Company Limited at a significant level of 0.001.  3) The Profitability Ratio of Net Profit Margin (NPM) had positive relationship with rate of return in capital gain yield of Nawarat Patanakarn Public Company Limited at a significant level of 0.01.    4) The Profitability Ratio of Operating Income Margin (OIM) had positive relationship with rate of return in capital gain yield of Nawarat Patanakarn Public Company Limited at a significant level of 0.01 and had the negative relationship with rate of return in capital gain yield of Unique Construction and Engineering Public Company Limited at a significant level of 0.05.                                                                                    
          Factors that may affect the company's spread in construction business Sector include the economic stimulus policies which are the construction of large scale, real estate investment promotion for private entrepreneurs, an increased and decreased capital share of the company, investment of famous investors, and the domestic economy.