OPTIMALISASI PEMILIHAN RETURN DAN RISK DENGAN MENGGUNAKAN METODE MEAN - VARIANCE MARKOWIZT : STUDI KASUS SAHAM LQ45 TAHUN 2023

Abstract

This study focuses on optimizing an investment portfolio using the Mean-Variance Markowitz Method for stocks within the LQ45 index on the Indonesia Stock Exchange. The high volatility of stock prices requires an appropriate investment strategy to minimize risk and maximize returns.

The purpose of this study is to identify the factors causing the decline in stock prices and measure the risk and returns of the constructed portfolio.

The research uses a qualitative approach with a descriptive method, utilizing secondary data such as stock prices, trading volumes, and macroeconomic information. The analysis was conducted by applying the Mean-Variance model to identify the optimal portfolio.

The results indicate that the decline in stock prices in the LQ45 index in 2023 was due to factors such as the decrease in global demand for commodities and macroeconomic conditions, including inflation and interest rates. The Mean-Variance model successfully identified a combination of stocks that minimized risk and maximized returns.

The conclusion of this study is that the Mean-Variance Markowitz Method is effective in managing stock portfolios, particularly in fluctuating market conditions. These findings can assist investors in making more informed and data-driven investment decisions.