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Journal : International Journal of Quantitative Research and Modeling

Portfolio Performance Analysis with Jensen's Alpha Using Single Index Model and CAPM on IDX30 Stocks Wahid, Alim Jaizul; Saputra, Jumadil
International Journal of Quantitative Research and Modeling Vol 6, No 2 (2025)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijqrm.v6i2.1013

Abstract

This study aims to evaluate the formation of an optimal stock portfolio using the Capital Asset Pricing Model (CAPM) and Single Index Model (SIM) approaches, and to assess portfolio performance using Jensen's Alpha generated from stocks included in the IDX30 index during the period April 2024 to March 2025. This study uses a quantitative descriptive approach with a population of 30 IDX30 stocks. The methods applied include calculating stock returns and betas, as well as forming an optimal portfolio using the CAPM and SIM formulas. Portfolio performance is then measured by Jensen's Alpha. The results of the study show that based on CAPM, BRIS.JK and EMTK.JK stocks are worthy of being included in the optimal portfolio because they have a positive expected return and Jensen's Alpha that slightly outperforms the market. EMTK.JK also has a lower risk. Meanwhile, based on SIM, only BBCA.JK is included in the optimal portfolio because it meets the criteria for Excess Return to Beta (ERB) > cut-off rate (C^*), and shows a positive Jensen's Alpha. The conclusion of this study is that both models can identify superior performing stocks for the optimal portfolio in the period.
Co-Authors A Hadi Arifin Agapa, M. Fasya Febri Agung Prabowo Agus Santoso Ahmad Dailami, Ahmad Ai Nurhayati Akmal Saputra Ali Syah Putra Aliasuddin Aliasuddin Alimin, Erina Ambiya, Utari Nur Amelisqi, Lusi Bilqis Amin Hou Amiruddin Idris Amni Zarkasyi Rahman, Amni Zarkasyi Andiwi Meifilina, Andiwi Angga, Binanga Anggia Suci Pratiwi Anggita, Sahira Anggraeni, Putri Siti Annur M, Ade Isna Anugerah, Dandi Ariffin, Ku Halim Bin Ku Assidqi, Hasbi Asti Nur Aryanti Astuti, Devi Fitri Ayulita Ramadhani Azahra, Astrid Sulistya Badruzaman, Jajang Betty Subartini Brahmantia, Bayu Budi Hendrawan Chairul Furqon, Chairul Chatarina Lilis Suryani Christianingrum Cut Annisa Fitriati Dalimunthe, Doli Muhammad Jafar Dede Abdul Hasyir Detrianty, Fitria Rika Dewi Mahrani Rangkuty Dierayani, Allysa Putri DIRYO SUPARTO Dwi Susanti Dwijaningtyas, Srinata Dwiyati Pujimulyani EKO EDDYA SUPRIYANTO EKO EDDYA SUPRIYANTO Eko Wahyudi, Fendy Erlina Erlina Evi Widowati F, Ayunda Alysa Fahrul Rizal, Fahrul Fairuztama, Rafif Fauzi, Muhamad Hasman Fauziah, Irma Silvia Fauziah, Mustika Fitriyani, Seni D Geubrina, Yulia Ghazali, Puspa Liza H, Yunita Sri Hadiyani, Rahmilia Hafni Zahara Hardi, Irsan Hari Mulyadi, Hari Hendra Raza Heny Hendrayati Herlina Napitupulu Hermawan, Riki Hidayana, Rizki Apriva Idroes, Ghalieb Mutig Inriati, Dhea Intan, Dede Ira Apriyanti isfenti sadalia Iskandar Muda Islah, Tsani Jamilah Jamilah Josua, Lancelot Julsen Julieta, Salma Kardofa, Mochamad Khoeryza, Rima Laksito, Grida Saktian Lugiana, Yuda Madani, Fathi Makia Maraya, Nisrina Salsabila Maruf, Cipta Muhammad Maulana, Ar Razy Ridha Maulana, Deni Maulani, Nishfi Rahmah Meida Rachmawati Muhammad Abrar Mujiarto, Mujiarto Murni Daulay Mursyidin Mursyidin NADILA SAVIRA Nadjib, Nadjib Nasib Nazila, Siti Desi Nellis Mardhiah Neni Nuraeni, Neni Nizar P, Ajeng Noka Omalia Noor F, Deng Dewi Novitasari, Aliffiah Novitasari, Ela Nur Elfaz, Zam Zam Nurazizah, Dina Nurhayat, Firman Arif Nurjaman, Diman Nurkamilah, Milah Nurmala Nurmala Nurohmah Dona, Tiara Gita Nurul Istiqomah, Insya Siti Nuryuniarti, Rissa Palupi Permata Rahmi Permata, Shintia Pirdaus, Dede Irman Pranoto Pranoto Pratama, Muhamad Risky Pratiwi, Denisa Lestari Prawiro, Meivin Mulyo Puteh, Anwar Putra, Fadlan Gunawan Rahmad Syukur Rahman Alfarisi, Rendi Raja Masbar Rico Nur Ilham Ridho, Adil Risma, Neng Robiatul A, Wahda Saefullah, Rifki Sajidah, Febi Zulfa Salqaura, Siti Alhamra Salsabila, Nabila Saparudin, Miftahul Rizki Saputra, Nadia Sari, Risna Purnama Sariartha Sianipar, Aryanti Septiani, Lisma Septiani, Resty Shinta Dewi, Reni Shofiatun Nisa, Wafa Sidiq, Fahmi Simanjuntak, Alberto Sinurat, Mangasi Siregar, Wardah Muharriyanti Siti Maria Ulfa Sofyan Sofyan Sopia, Dea Sri Nita, Sri Suharman, Harry Sukono . Sullaida, Sullaida Suriani Suriani Suryana Suryana Syahirah, Sheila Najla Syahputra Silalahi, Amlys Syntha, Bunga T. Zulham Urrohman, Nida Wahid, Alim Jaizul Wahyuddin Wahyuni, Arni Sri Wan Ridwan Husen, Wan Ridwan Widiartanto Widiartanto Widiawaty, Shindy Cantika Windi Amelia, Windi Wintara, Jane Ayu Wiranatakusuma, Dimas Bagus Yahya, Muhammad Ilham Yunda, Lola Irma Yuningsih, Siti Hadiaty Yusril Ihza Mahendra Zikri Muhammad