A Research On The Investment Combination Of The Open-ended Fund Of Our Country

The purpose of this text is that it can appraise investment value, target of investment securities, synthetically to set up to used for not only through mathematics method but also securities investment analysis combination of evaluation index and evaluation index system, and confirm the securities investment combination of the open-ended fund of our country through using the improved investment combination model.The first part have introduced the current situation of the development in our country of the open- ended fund and extant subject matter; the second part is the theory and method survey, introduce some classical investment theories and point out the development trend of present investment combinatorial theory; The third part have told the theory of the investment funds, and has compared open-ended fund with the difference of the type of other funds emphatically, have introduced the advantage of the open- ended fund and development prospect in our country; The fourth part, analyzing about the corporation and chooses the corporation worth making the investment,DEA model that can list company produces business efficiency is applied into the primary election of the listed company in the trade through setting up and appraising in the trade, then company in trade carrying on financial rate is analyzing and it can be appraised with inherent value investment value of listed company comment and pointing synthetically to set up to analyze, choose the listed company with very good investment value finally. The fifth part, use the scientific quantitative model to analyze the earning ratio and risk of the securities of listed company, conform optimum securities investment combination.This text, through relatively studying the law, the statistic law of mathematics and physics, the analytic approach of the level mainly, Data Envelopment Analysis (DEA), Back Propagation neural network method sum up deductive method is applied into choosing and conforming construction of investment combination, target of investment securities, to come to hold in place with a net to wrap up.