Strategi Diversifikasi Saham Perbankan Melalui Model Markowitz untuk Portofolio Optimal
Abstract
Investments made by investors are always faced with risk. To minimize investment risks, investors can analyze by forming an optimal portfolio. The purpose of this study is to form an optimal portfolio by using the Markowitz model so that it can be used as a basis for investment considerations for banking companies listed on the Indonesia Stock Exchange. The data of this study are banking companies listed on the Indonesia Stock Exchange during the 2023-2024 period. The sample was taken based on the purposive sampling technique with a total of 3 research samples of 3 banking companies by forming 3 portfolio combinations. The results of the study show that there is 1 optimal portfolio with a different proportion of funds, namely a portfolio of 2 combinations between PT. Bank Mandiri (Persero) Tbk with PT. Bank Central Asia Tbk. with a standard deviation of 5.24% with an expected return of 5.72%. This means that the combination of portfolio 2 has a smaller risk of 5.24% compared to the risk of a combination of portfolio 1 and 3 with a relatively high return of 5.72%.
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