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      Optimasi Portofolio Investasi Saham Indeks Kompas 100 Menggunakan Metode Hierarchical Clustering dan Model Markowitz

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      Date
      2024
      Author
      MUZAFFAR, RIAN NAUFAL
      Budiarti, Retno
      Septyanto, Fendy
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      Abstract
      Penelitian ini menginvestigasi optimasi portofolio investasi saham pada Indeks Kompas 100 menggunakan metode hierarchical clustering dan model Markowitz. Data harga saham mingguan dikumpulkan dari Februari 2023 hingga Januari 2024. Langkah langkah metodologis mencakup praproses data dan pengelompokan, pengelompokan, eliminasi saham, pembentukan dan optimasi portofolio tanpa clustering, pembentukan dan optimasi portofolio dengan clustering, dan evaluasi portofolio. Temuan menunjukkan bahwa portofolio yang terdiri dari saham-saham dari cluster yang berbeda memberikan nilai harapan return lebih tinggi dan diversifikasi yang efektif, dengan rata-rata korelasi antar saham sebesar -0.0066. Portofolio dari cluster yang sama berhasil mengurangi risiko dan memiliki Sharpe ratio yang tinggi. Portofolio dari cluster berbeda dan cluster sama lebih baik dari portofolio tanpa cluster dalam segala aspek kecuali risiko. Penelitian ini menekankan pentingnya mempertimbangkan struktur cluster saham dalam pembentukan portofolio untuk mencapai hasil yang optimal.
       
      This study investigates the optimization of stock investment portfolios on the Kompas 100 Index using hierarchical Clustering and the Markowitz model. Weekly stock price data were collected from February 2023 to January 2024. Methodological steps included data and Clustering preprocessing, Clustering methods, stock elimination, portfolio formation and optimization without Clustering, and portfolio formation and optimization with Clustering, followed by portfolio evaluation. The findings indicate that portfolios consisting of stocks from different Clusters provided higher returns and effective diversification, with an average interstock correlation of -0.0066. Same-Cluster portfolios successfully reduced risk and had high Sharpe ratios. Both different-Cluster and same-Cluster portfolios outperformed non-Clustered portfolios in all aspects except for risk. The study highlights the importance of considering stock Cluster structures in portfolio formation to achieve optimal results.
       
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      http://repository.ipb.ac.id/handle/123456789/158073
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      Indonesia DSpace Group 
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