摘要：A portfolio is an instrument used by an investor to minimize risks in aninvestment by investing in more than one stock (securities). The purpose ofwriting this thesis is to learn the benefits from any combination of portfolio andrisk on any combination of portfolios and to determine which combination canform an efficient investment. The research method used in this study is thereturn (profit rate), expected return (the expected rate of return), the standarddeviation and the variance (risk level), the correlation coefficient (the level ofrelationships between variables), the potofolio expected return and portfolio risk. Based on the analysis it is found that the combination of funds in the firstportfolio with RMBA-70% 15% 15% GGRM-HMSP generates a profit rate of3.161% with a risk of 10.54%. The second portfolio with RMBA-30% 10%60% GGRM-HMSP generates a profit rate of 1.927% with a risk of 7.29%. Thethird portfolio with RMBA-45% 10% 45% GGRM-HMSP generates a profitrate of 2.435% with a risk of 7.87%. The fourth portfolio with 50-RMBA%20% 30% GGRM-HMSP generate profit rate 2.366% with a risk of8.24%. Portfolio to-5 with RMBA-20% 60% 20% GGRM-HMSP generates aprofit rate of 0.404% with a risk of 7.09%. It can be concluded that an efficientportfolio is no.-1 portfolio with a combination of funds RMBA-70% 15% 15%GGRM-HMSP because it produces the highest profit rate of 3.161% with a riskof 10.54%. No.-5 portfolio has a combination of funds of RMBA-20% 60%20% GGRM-HMSP because it produces the lowest risk of 7.09 with a profit rateof 0.404%.
