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Optimizing Asset Allocation in Investment Portfolios in Primary Consumer Sector Companies for the 2020-2022 Period Devi Suci Lastari; James Marshall Sitinjak; Tri Sulistiawati; Alvito Auliansyah; Gusganda Suria Manda
Journal Informatic, Education and Management (JIEM) Vol 8 No 1 (2026): FEBRUARY (CALL FOR PAPERS)
Publisher : STMIK Indonesia Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61992/jiem.v8i1.225

Abstract

This study aims to determine the optimal portfolio composition for primary consumer sector stocks in Indonesia during the 2020–2022 period, a time marked by high market volatility due to the COVID-19 pandemic. The analysis focuses on two stocks: PT Sumber Alfaria Trijaya Tbk. (AMRT) and PT Indoritel Makmur Internasional Tbk. (DNET). Using a quantitative descriptive–explanatory approach, the research includes the calculation of returns, variance, covariance, correlation, portfolio formation with the Markowitz Model and Single Index Model, as well as performance evaluation using the Sharpe Ratio, Treynor Ratio, and Jensen’s Alpha. The results show that AMRT offers higher average returns but with greater volatility, while DNET provides more stable returns with lower risk. The negative correlation between the two stocks (-0.319) enables effective diversification. The minimum-risk portfolio is obtained with a composition of 13% AMRT and 87% DNET, achieving a risk level of 10.68%, which is lower than the risk of each individual asset. Meanwhile, the best-performing portfolio based on the Sharpe Ratio is achieved with a composition of 30% AMRT and 70% DNET, offering optimal efficiency between return and risk. These findings reinforce the relevance of Modern Portfolio Theory in the Indonesian market context and provide strategic recommendations for investors to optimize asset allocation through measurable diversification.
Co-Authors A, Muhamad Yakub A, Nabilla Puteri Adhaliah Pratiwi Agi Pranata Muslim Alfathan, Alfiyan Yudha Alifia Nur Haristi Alvito Auliansyah Amalia, Luthfi Thoriq Ameliani, Julia Andreas Riyanto Angga Sanita Putra Anggit Hesti Sutomo Anggraeni, Pina Anggraini, Alvira ANWAR MUSADAD Aprilia Nur Azizah Apriyani, Mishael Apriyanti, Ariska Aries Suharso Arif Rakhman Ariq Farhan Widiyanto Arista, Vera Monika Ayu Ariyani, Risma Artika Putri Aulia Aulia, Edis Rama Auliana, Murni Azizah Fauziyah Azzahra Hani Putri banurea, saydan nikodemus Bintang Adria, Muhammad Carina Fitri Chaerur Rozikin Chudjuarjeen, Saichol Darissa Aprilia Dea Amelia Putri Dela Mariana Denisa Rizky Sukrianingrum Desnita Puspitasari Desviana, Alyssa Devi Suci Lastari Dhia Fahty Sa'diyyah Dian Hakip Nurdiansyah Dian Hakip Nurdiansyah Dinda Naza Febriani Dini Nurfadilah Disman Disman Diza Fahlevi Edah Komalasari Ega Fajrianti Nur Eka Prasetyo, Kevin Eko Leonardo Sumbayak Elin, Elin Elsa Hastuti Sudiman Elsa Thyovani Eriska . Erwin Nugroho Fadillah, Nurhikmah Fajar Japar Sodik Fatimah Nasywa Azhar Febrianti, Feby Fikri Hakim Ermar Galuh Pramesti Irawan Ghani, Erlane K H, Lusy Hari Sulistiyo Heikal M. Zakaria Herdiansyah, Ary Dwi Putra Herlina, Dina Hijayanti, Siti Nurul Husnina, Najla Nurul Ida Ayu Putu Sri Widnyani Ika Lista Fadila Ila Komalasari Ilham, Arifin Indri Fitriyanti Irani, Anggita Dewi Irvan Yoga Pardistya Ismiani Aulia Isnani Maryamah Isra Mira NIta Ivan Krisna Aji James Marshall Sitinjak Jannah, Elvi Nikmatul Jati, Lintang Permata K, Ade Putri Khairunnisa, Hanny Novita Khoirunnisa, Afina Kiki Fatmala Komalasari, Edah Krisma Aprilita Yuniar Kusuma, Annisya Eka Putri Lastari, Devi Suci Lestari, Anisa Lidia Noer Khoeriah Lintang Duta Bramantya Liya Megawati Lukita, Carolyn Lydia Octaviani Mansyur, Maulana Manurung, Alvito Vilbert Marsha Caesarani Mayasari Mayasari Mega Rizki Amaliah Meilaningrum, Annisa Melia Trie Utami Meti Nopita Mubarok, Anwar Husni Muhamad Abdul Ishaq Muhamad Ibnu Mubarok Muhammad Dava Natawira Muthia Berliana MW Zarkasyi N, Karmelita Nagari, Monica Suprajaya Duta Nanu Hasanuh Narulita, Alyana Nella Aprilia Neneng Uswatun Hasanah Neni Nur'aeni Nestiti, Intan Liani Nia Anggraina Zen Ningrum, Rosi Setia Ningsih, Ratna Nopiana, Medi Novi Budi Setiyanti Novia Dini Novita Rosnawati Nugraha Nugraha Nugraha, Nita Nur'asih Nur Rantika Octavia Nurasyikin, Nurasyikin Nurfitriani, Nabilah Nurrosadi, Mega Berliana Nurwihda Jahrotunnupus Oktaviani, Alia Olivia Luthfiah Mufida P, Risma Yulia Paisal Muhamad Fikri Pauline Cielo Pratiwi, andhika indah Prayoga, Arvian Purba, Friska Natalia Purwanti, Tanti Ragil Noviantika Silitonga Rahma Fitriani Rahma, Amelia Raja Malau, Mian Sahala Ratih Kusumawati Ratna Ningsih Rengganis, Sekar Putri Riestiana, Rofrilia Rina Maria Hendriyani Riska Oktaperina Riyandi Riyandi Rizka Ardiana Gunawan S, Devi S, Jose Aldo S, Salsa Nur Safitri, Shelly Salma Melisa Dewi Salma Mellisa Dewi Sandrina Amadya Sari, Chairunisa Arunilam Sauzan, Alya Rizky Savira Azahra Ridwan Sayid Aulia Taslim Sesaria, Yulia Sharon Purba , Nico Shella Putri Yulistiani Shilvi Maljeti Siahaan Trinita Tiodora Mardalena Siahaan, Ruth Sephia Hasianna Sidik, Aliya Tasya Tasya Sidik, Nur Halimah Sihombing, Putra Harapan immanuel Siska Yulianti Siti Ahsani Taqwim Siti Humayah Siti Nurhadyanti Sitinjak, Moses Aprildo Jerico Slamet, Nabillah Santi Dewi Lestari Solihah, Deva Pusa Solihin Sidik Sri Suartini Sri Wellis Anggraeni Suci Cicih Catur Setiyani Suhono Suhono, Suhono Suhono, Suhono Sukrianingrum, Denisa Rizky Suryana, Iwan Suryanto Sosrowidigdo Sutardi, Fitrah Diraya Syarafi, Dwi Tio Syifa Fauziyah, Syifa Tirey Widya Pamungkas Tito Cayadi Luthfan Tri Sulistiawati Tursina, Zenit Utami, Sri Setiawati Vera Monika Ayu Arista W, Okky Widya Puspita Sari Wildan Hidayatullah Wirandana, Okky Wiwin Wulandari Wulandari, Wiwin Yulia Sesaria Yuliarti, Almira Dwi Yuniar, Awaliyah Fadya Zahra, Firlia Adnina Zahra, Vanissa Fatimatul