Investment Portfolio's Efficiency Evaluation for Markowitz Model and the Index Model

In the financial market, investment portfolio is always a popular topic that investors are interested in and look forward to exploring as well. Since it does affect expected return risk of their investment. this paper, focusing on two main models Markowitz model index model. The paper also collect data from stock market analyze different under constraints have own practical meaning. result 5 concluded below by conducting an efficient frontier quick ratio. And finds out simplified calculation variance matrix but assumption more sustainable reality. initial suggests both advantages shortcomings, suggesting hard determine which one favorable. However, after further discussion between models. study found long original accurate, gives better results than If want attain very accurate data, best choice. research portfolios can be consideration when people choosing portfolios. It used create higher well lower one, brings thoughts investing promoting finance sense.