The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic

Background: Stock portfolio management is essential for risk reduction and forecasting future stock market movements. When Covid-19 was declared a pandemic, stock markets worldwide, particularly the Indonesian stock market, faced significant declines. The Indonesian market dropped by 33%, mirroring...

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Main Authors: Tri Purwani, Rahmat Budi Santoso, Ana Kadarningsih
Format: Article
Language:Indonesian
Published: Bogor Agricultural University 2025-01-01
Series:Jurnal Aplikasi Bisnis dan Manajemen
Online Access:https://journal.ipb.ac.id/index.php/jabm/article/view/56338
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author Tri Purwani
Rahmat Budi Santoso
Ana Kadarningsih
author_facet Tri Purwani
Rahmat Budi Santoso
Ana Kadarningsih
author_sort Tri Purwani
collection DOAJ
description Background: Stock portfolio management is essential for risk reduction and forecasting future stock market movements. When Covid-19 was declared a pandemic, stock markets worldwide, particularly the Indonesian stock market, faced significant declines. The Indonesian market dropped by 33%, mirroring a global trend of simultaneous declines, indicating a joint movement among stock markets. Purpose: This study aims to investigate the integration of the Indonesian stock market with the ten largest stock markets by market capitalization globally, comparing the periods before and after the Covid-19 pandemic. Design/Methodology/Approach: The study utilizes daily closing returns of stock market indices, divided into two periods: before the crisis (January 1, 2016 - December 31, 2019) and after the crisis (January 1, 2020 - December 31, 2023). Data is sourced from Yahoo Finance. The analysis combines Orthogonal Generalized Autoregressive Conditional Heteroscedasticity (OGARCH) and Principal Component Analysis (PCA). Findings/Results: The results show that integration between stock markets was higher in the post-crisis period, indicating an increase in market integration after the Covid-19 pandemic. The Indonesian stock market remained segmented in both periods, exhibiting low correlation with other markets. European and American stock markets showed higher integration, while Asian markets were generally segmented. Conclusion: Post-pandemic integration was higher than before, though the Indonesian stock market continued to have low correlation with other global markets, despite a slight increase in correlation over time. Originality/Value: This research offers a novel comparative analysis of stock market integration, highlighting Indonesia’s persistent market segmentation despite global shifts before and after the Covid-19 pandemic. Keywords: Covid-19, market capitalization, OGARCH, stock markets, PCA
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spelling doaj-art-d1a5c3d54e6c4ab89748e1909bfdd8de2025-02-07T08:02:42ZindBogor Agricultural UniversityJurnal Aplikasi Bisnis dan Manajemen2528-51492460-78192025-01-0111128428410.17358/jabm.11.1.28456338The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 PandemicTri Purwani0Rahmat Budi Santoso1Ana Kadarningsih2Department of Management, AKI University; Jl. Imam Bonjol No.15 - 17, Dadapsari, North Semarang, Semarang City, Central Java 50173, IndonesiaDepartment of Management, AKI University; Jl. Imam Bonjol No.15 - 17, Dadapsari, North Semarang, Semarang City, Central Java 50173, Indonesia Department of Management, Dian Nuswantoro University; Jl. Imam Bonjol No.207, Pendrikan Kidul, Central Semarang, Semarang City, Central Java 50131, IndonesiaBackground: Stock portfolio management is essential for risk reduction and forecasting future stock market movements. When Covid-19 was declared a pandemic, stock markets worldwide, particularly the Indonesian stock market, faced significant declines. The Indonesian market dropped by 33%, mirroring a global trend of simultaneous declines, indicating a joint movement among stock markets. Purpose: This study aims to investigate the integration of the Indonesian stock market with the ten largest stock markets by market capitalization globally, comparing the periods before and after the Covid-19 pandemic. Design/Methodology/Approach: The study utilizes daily closing returns of stock market indices, divided into two periods: before the crisis (January 1, 2016 - December 31, 2019) and after the crisis (January 1, 2020 - December 31, 2023). Data is sourced from Yahoo Finance. The analysis combines Orthogonal Generalized Autoregressive Conditional Heteroscedasticity (OGARCH) and Principal Component Analysis (PCA). Findings/Results: The results show that integration between stock markets was higher in the post-crisis period, indicating an increase in market integration after the Covid-19 pandemic. The Indonesian stock market remained segmented in both periods, exhibiting low correlation with other markets. European and American stock markets showed higher integration, while Asian markets were generally segmented. Conclusion: Post-pandemic integration was higher than before, though the Indonesian stock market continued to have low correlation with other global markets, despite a slight increase in correlation over time. Originality/Value: This research offers a novel comparative analysis of stock market integration, highlighting Indonesia’s persistent market segmentation despite global shifts before and after the Covid-19 pandemic. Keywords: Covid-19, market capitalization, OGARCH, stock markets, PCAhttps://journal.ipb.ac.id/index.php/jabm/article/view/56338
spellingShingle Tri Purwani
Rahmat Budi Santoso
Ana Kadarningsih
The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
Jurnal Aplikasi Bisnis dan Manajemen
title The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
title_full The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
title_fullStr The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
title_full_unstemmed The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
title_short The Integration of The Indonesian Stock Market With Developed Stock Markets: Pre- and Post-Covid-19 Pandemic
title_sort integration of the indonesian stock market with developed stock markets pre and post covid 19 pandemic
url https://journal.ipb.ac.id/index.php/jabm/article/view/56338
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