Analysis About Portfolio Model And Instance Research

In the modern market economy, stock market is prominent. The stock market can supply for capital with the remaining, make the dispersion's funds concentrate, accelerate the funds with the turn over of stock certificate, realizes the social resource install reasonable.The stock market has the characteristic of the high income, high risk. Estimate the variety of the market future, certain reasonable property price, can lower the risk of investment, and obtain the stable income.First, this paper analyzes the modern western portfolio theory deeply; therefore, according to the actual circumstance of Chinese stock market, we bring up portfolio model that can evade the system risk. That model use the index sign of RSI(40) of the market index as the generous character of the system risk, use the single index model of with the non risk property to calculate combination the inside the investment comparison of each property. Bring upped the calculation method to estimate the model parameter (coefficient b and the expect rate of return).According to that model, we developed "tornado stock portfolio analysis system". That system provides the function of technique analysis and of portfolio analysis.Finally, we make use of the above system to proceeds the instance researched to portfolio model. We construct the combination about eight stock and non risk property . compare with the rate of return of Shanghai stock index and our combination on October 22 2001 until March 25 2002, discovering combination of Marches are consumedly higher than the return of index's rate.