Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach
This paper examines the structural changes of the companies listed in the technology sector in Bursa Malaysia during the COVID-19 pandemic. The closing price of each stock is used as the basis for calculating the cross-correlation between the companies' returns. Minimum spanning trees are emplo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Semarak Ilmu Publishing
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/116813/ http://psasir.upm.edu.my/id/eprint/116813/1/116813.pdf |
| _version_ | 1848867097069748224 |
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| author | Bahaludin, Hafizah Abdullah, Mimi Hafizah Hussin, Masnida Laham, Mohamed Faris Ismail, Zurita |
| author_facet | Bahaludin, Hafizah Abdullah, Mimi Hafizah Hussin, Masnida Laham, Mohamed Faris Ismail, Zurita |
| author_sort | Bahaludin, Hafizah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This paper examines the structural changes of the companies listed in the technology sector in Bursa Malaysia during the COVID-19 pandemic. The closing price of each stock is used as the basis for calculating the cross-correlation between the companies' returns. Minimum spanning trees are employed to analyse the relationships and visualize the correlation changes for each period. Additionally, degree centrality is utilized to analyse the network's structure further. This study covers the period from 2020 to 2021 and involves 39 companies within the technology sector. The findings reveal significant fluctuations in the companies' correlations each year. Moreover, the most influential companies vary according to the period, demonstrating position changes. The fact that Inari Amertron (INAR), Revenue Group (REVE), and My EG Services (MYEG) consistently become leading players in different years shows how strong and influential they are in the technology sector. This suggests that these companies have the ability to shape market trends and possibly even control the direction of the industry. The results provide valuable insights for investors and policymakers, aiding in visualizing company relationships and facilitating strategic portfolio optimization. |
| first_indexed | 2025-11-15T14:31:04Z |
| format | Article |
| id | upm-116813 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:31:04Z |
| publishDate | 2024 |
| publisher | Semarak Ilmu Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1168132025-05-02T02:53:33Z http://psasir.upm.edu.my/id/eprint/116813/ Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach Bahaludin, Hafizah Abdullah, Mimi Hafizah Hussin, Masnida Laham, Mohamed Faris Ismail, Zurita This paper examines the structural changes of the companies listed in the technology sector in Bursa Malaysia during the COVID-19 pandemic. The closing price of each stock is used as the basis for calculating the cross-correlation between the companies' returns. Minimum spanning trees are employed to analyse the relationships and visualize the correlation changes for each period. Additionally, degree centrality is utilized to analyse the network's structure further. This study covers the period from 2020 to 2021 and involves 39 companies within the technology sector. The findings reveal significant fluctuations in the companies' correlations each year. Moreover, the most influential companies vary according to the period, demonstrating position changes. The fact that Inari Amertron (INAR), Revenue Group (REVE), and My EG Services (MYEG) consistently become leading players in different years shows how strong and influential they are in the technology sector. This suggests that these companies have the ability to shape market trends and possibly even control the direction of the industry. The results provide valuable insights for investors and policymakers, aiding in visualizing company relationships and facilitating strategic portfolio optimization. Semarak Ilmu Publishing 2024-04-11 Article PeerReviewed text en cc_by_nc_4 http://psasir.upm.edu.my/id/eprint/116813/1/116813.pdf Bahaludin, Hafizah and Abdullah, Mimi Hafizah and Hussin, Masnida and Laham, Mohamed Faris and Ismail, Zurita (2024) Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach. Journal of Advanced Research in Applied Sciences and Engineering Technology, 44 (2). pp. 210-220. ISSN 2462-1943 https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/article/view/4693 10.37934/araset.44.2.210220 |
| spellingShingle | Bahaludin, Hafizah Abdullah, Mimi Hafizah Hussin, Masnida Laham, Mohamed Faris Ismail, Zurita Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title | Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title_full | Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title_fullStr | Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title_full_unstemmed | Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title_short | Analysing Malaysian technology sector during COVID-19: a minimum spanning tree approach |
| title_sort | analysing malaysian technology sector during covid-19: a minimum spanning tree approach |
| url | http://psasir.upm.edu.my/id/eprint/116813/ http://psasir.upm.edu.my/id/eprint/116813/ http://psasir.upm.edu.my/id/eprint/116813/ http://psasir.upm.edu.my/id/eprint/116813/1/116813.pdf |