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Journal : Annals of Management and Organization Research

Testing the efficient market hypothesis with Indonesian Islamic Stocks during the Covid-19 pandemic Afifah, Tiara Early; Hasanah, Neneng; Irfany, Mohammad Iqbal
Annals of Management and Organization Research Vol. 4 No. 3 (2023): February
Publisher : goodwood publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/amor.v4i3.1621

Abstract

Purpose: This study aims to identify the phenomenon of overreaction in Islamic stocks during the COVID-19 pandemic and understand how various pieces of information during the pandemic influenced investors to overreact, leading to market inefficiency. Research Methodology: This study employs two main methods: an event study focusing on the overreaction phenomenon in the Islamic stock market, and cross-sectional regression to analyze the factors that influence it. Results: Overreaction was observed in the winner's stock portfolio during the announcement of Indonesia's first COVID-19 case. However, during other significant events, such as the National Economic Recovery program issuance, the arrival of the vaccine, and the highest increase in daily positive cases, overreaction was seen in both the winner and loser stock portfolios. Factors such as abnormal returns, information leakage, and company ownership are identified as significant influencers of this overreaction. These factors were found to be negatively related to cumulative abnormal returns post-event, indicating their role in the overreaction phenomenon. Limitation: This study focuses on the overreaction phenomenon of Shariah stocks in the Jakarta Islamic Index (JII) during the COVID-19 pandemic in 10 selected events from October 1, 2019, to July 23, 2021. Contribution: This study offers insights into the behavior of Islamic stocks in Indonesia during the pandemic, helping stakeholders understand market inefficiencies during crises.
Co-Authors Afifah, Tiara Early Afriansyah, Berlian Agus Afandi Agustin, Inka Nadiah Agustina, Santi Ahmad Fikri Ahmad Syukri Aisyah, Tasya Nur Akaputri, Della Erriani AMELIA FEBRIANA, AMELIA Angel Excellen Maharanihalim Anggini, Karlita Arif R, Kasmin Asmawati Asmawati Atikana, Akhirta Azijah, Izattul Azzahra, Amelia Chaniago, Fransisko Dea Aprilia Desriani Desriani Dewi Hasanah Dharmarianti, Dian Putri Dwi Endah Kusumawati Dzikri, Mohd. Iqbal Edi Saputra Edy Kusnadi Ekafitrianda, J. M. Eko Prabowo, Eko Endri Purnomo Fadhilah Fatwanti, Devi Fauzi, Ikbar Fitri, Resfa Fitria Sari Fitriah, Aidatil Fitriani, Eva Fitriyah Fitriyah Fitriyatustany, Fitriyatustany Galantika, Adinda Evan Geulista Hamzah Haq, Daffa Aqomal Hardjanto Haryanti, Ely Hasan, Afrizal Hasanah, Qoriatul Hendra Hendra Herawati, Ita Hermelinda, Tuti Ilham, Hadiid Ushama indriyani, jihan Putri Ismail Fahri Isnarayani, Yuni Jessica, Melia Kasful Anwar Lestari, Neneng Dini Indah Lina Herlina M Solehah, Siti M. Syahran Jailani Mahyuzar Rahman Maisah Maisah MARIA BINTANG Mawarni, Endang Siti Miftahul Huda Miftahul Jannah Mohammad Iqbal Irfany Muhajir Muhajir, Muhajir Muhammadi, Acep Muwahid Mulyorini Rahayuningsih Mustika Mustika Muthohharoh, Marhamah Mutmainah, Dhea Nadhifah, Hana NANIK RAHMANI Napisah Napisah, Napisah Nawang Sari, Dewi Neni, Neni Niarti, Upi Nofantoro, Dwi Nugroho, Sindunata Nur Halimah Nurhaeni Nursaleha, Ervina Priyanto, Anindia Meil Purba, Elvrida Triana BR PUSPITA LISDIYANTI Putri, Dwi Angraeni Putri, Narti Eka Putri, Uly Anggraeni Rahmalia, Desi Ramadhan, Mustarim Ramadini, Kintan Nur Randi Tamirano Rasidin Restiyani, Destika Riana Rizky, Riana Risthi, Alyssa Rosa, Tina Salahuddin Salahuddin Sanusi, Anisa Sarah Salsabila Sarfilianty Anggiani, Sarfilianty Sari, Citra Atrina Sari, Dewi Nawang SHANTI RATNAKOMALA Shibghotillah, Nur Sihite, Debby Alfani Siradju, Diva Athaya Fairuz Siswani, Sri Siti Nurfadilah Siti Zubaidah Sofran, Sidorus Alfandrianus Su'ud, Su'ud SUDARMONO SUDARMONO Sugeng, Andry Suhartini, Titik Sulistyowati, Yeny Suparman, Alviani Sutihat, Ihat Syamsul Falah Thontawi, M Velani, Intan Tunandha Widiyati, Dian Widoyono, Agil Wiwit Amrinola Yani, Shevi Yatmi, Wanda Tri Yeni Nuraeni, Yeni Yulandari, Sri Zenabia, Tsarina Zulqarnin, Zulqarnin