| Taking the listed companies of Henan Province, this paper makes a scientific and reasonable comprehensive evaluation of their operating achievements as well as a primary analysis of the influential factors of the stock yield, then get the optimal portfolio under the different levels of expectancy yield rate via Markowitz portfolio model. The three main conclusions are drawn:(I) By choosing 19 financial indexes, this paper makes a demonstrative analysis of the annals data of the listed companies in Henan Province in 2004 via factor analysis method, and finds out five principle factors which have important modifying effect on the evaluation of achievements of the listed companies. They are profit factor which represents the reward structure of the listed companies, the gained profit factor which represents the profitability of the companies, the debt service factor which represents solvency of the company, the management factor which represents the managed capacity of the companies and the development factor which represents the capacity for development. Each principle factor multiplying its corresponding variance contribute rate get the synthesis score of each company respectively, consequently this paper makes an comprehensive evaluation of each company. Then applying factor analysis method, the paper draws the achievement rank of the listed companies in Henan Province in the middle of 2004 and 2005, and then analyzes the falling reason of the achievement of these companies in this period with the combination of the market circs.(II) This paper makes the annals data of the listed companies in 2004 as sample, and gets earnings per share and the regression equation of the four financial indexes which have noticeable effect on it via stepwise regression method. The four financial indexes which affect earnings per share are the net asset per share, unaccommodated profit per share, quick ratio and return on assets respectively. The equation provides a... |
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