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      Pembentukan Portofolio Optimal Menggunakan Model Markowitz pada Indeks Saham Syariah IDX-MES BUMN 17 Periode 2025

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      Date
      2026
      Author
      Wicaksono, Galih Adi
      Wiliasih, Ranti
      Hasanah, Qoriatul
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      Abstract
      Volatilitas pasar modal menuntut pendekatan matematis dalam pengambilan keputusan investasi. Penelitian ini menganalisis pembentukan portofolio saham syariah optimal menggunakan model Markowitz pada indeks IDX-MES BUMN 17 periode 2025 berdasarkan harga penutupan mingguan yang dioptimasi secara kuadratik dengan matriks varians-kovarians. Dari 17 emiten populasi, empat saham dieksklusi karena mencatatkan expected return negatif. Hasil komputasi menunjukkan global minimum variance portfolio menekan risiko hingga 12,70% dengan expected return 37,96%, didominasi saham JRPT (52,27%). Kinerja paling efisien dicapai oleh tangency portfolio dengan expected return 58,00%, risiko 15,64%, dan Sharpe ratio 3,371, yang dibentuk oleh JRPT (40,00%), IPCC (26,73%), ANTM (20,74%), TLKM (8,44%), dan PGAS (4,09%). Portofolio Markowitz ini terbukti 2,9 kali lebih efisien dibandingkan diversifikasi naif (1/N). Temuan ini mengarahkan pengelola dana untuk mengadopsi penapisan risiko kuantitatif guna merealisasikan prinsip tawazun (keseimbangan) dan hifdzul mal (perlindungan harta) dalam investasi syariah.
       
      Capital market volatility requires mathematical approaches in investment decision-making. This study analyzed the formation of an optimal Islamic stock portfolio using the Markowitz model on the IDX-MES BUMN 17 Index for the 2025 period, based on weekly closing prices optimized through a variance-covariance matrix. This study excluded four of the 17 population issuers due to negative expected returns. The global minimum variance portfolio (MVP) minimized risk to 12.70% with a 37.96% expected return, dominated by JRPT stock (52.27%). The most efficient performance was achieved by the tangency portfolio, with a 58.00% expected return, 15.64% risk, and a Sharpe ratio of 3.371, composed of JRPT (40.00%), IPCC (26.73%), ANTM (20.74%), TLKM (8.44%), and PGAS (4.09%). This Markowitz portfolio proved 2.9 times more efficient than naive (1/N) diversification. These findings direct fund managers to adopt quantitative risk screening to realize the principles of tawazun (balance) and hifdzul mal (wealth protection) in Islamic investment.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/175638
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      • UF - Syariah Economic [653]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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      Universitas Jember Digital Repository