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Journal : Bulletin of Applied Mathematics and Mathematics Education

Relationship between opening and closing of stock prices for IHSG and issuers: A case study in the Indonesia Stock Exchange Manik, Efron
Bulletin of Applied Mathematics and Mathematics Education Vol. 5 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/bamme.v5i1.12975

Abstract

Identifying the most influential variables in stock price movements is a crucial aspect of developing an accurate mathematical model for predicting market trends. This study analyzes two main variables: the composite stock price index (IHSG) and the closing price of company shares, to determine the extent of their influence on stock prices on the observation day. The findings indicate that the IHSG from one day prior to the observation day does not have a significant impact on the closing price of a particular stock. This means that changes in the IHSG on the previous day cannot be used as the main indicator to predict a company's stock price on the following day. On the other hand, the closing price of a company's stock on the previous day has a strong correlation with the company's closing stock price on the observation day, which is 70%. Besides historical stock price factors, irrational investor behavior can cause volatility that does not fully reflect a stock’s fundamental value. Therefore, it is essential to consider investors' psychological aspects in stock market analysis.
Co-Authors Adi S Situmorang Adi Situmorang Adi Situmorang Adi Suarman Situmorang, Adi Suarman Agusmanto Hutauruk Agusmanto J.B. Hutauruk Alianus Zalukhu Alianus Zalukhu Alianus Zalukhu Alvionita br Surbakti Angela Anatasya Regina Bangun Artha Hadia Sihombing Aruan, Anggie Desi K. Ayu Grasella Simanjuntak Basten Siagian, Marco Van Batubara, Putri Benni Polin Parsaulian Purba Buulolo, Derman Chandra Saptanto Juraganda S, Christina Sitepu dame ifa sihombing Dame Ifa Sihombing Darma Indra Gultom David Guth David Mrazek Desty Apriyanti Pinem Doni Berkat Tabah Hulu Doni Berkat Tabah Hulu Doni Berkat Tabah Hulu Dusan Jina Elvi S Siburian Ewin Simbolon Ewin Simbolon Eyxza Prilia Pratiwi Simanjuntak Farida Sianturi Feri H. Pangaribuan Feri Pangaribuan Firman Pangaribuan Folala Telaumbanua Fresty Handayani Togatorop Gerhajur Purba Giawa, Yulina Grace Manurung Grance Luvita Sanaya Simanjuntak Gultom, Darma Indra Gultom, Limasso Gultom, Sanggam P Halawa, Dedi Presli Hanter Manik Hardi Tambunan Hardi Tambunan Hendro Yoni Ganda Herman . Herman Herman Hia, Lutemaria Hutapea, Jernita Hutauruk, Agusmanto Hutauruk, Agusmanto J.B Irma Gultom Jan Tomasov Jessica Dwi Gracia Saragih Julius Julius Kalvin Ginting Kammer Tuahman Sipayung Karyenti M S Lahagu Lahagu, Kristiani Lena Pangaribuan Lenka Křivánková Limbong, Cici Lintong S. Situmorang Maesy Romaito Purba Magdalena Susanti Telaumbanua Magdalena Susanti Telaumbanua Manalu, Ayu Nasari Marco Van Basten Siagian Maria Manao Martin Maděra Matous Havrlik Melissha Enintha Hutajulu Milka Simanjuntak Mulianton Mulianton Naibaho, Tutiarny Nasowaauri Laowo Nesti Surya Astuti Zebua Nesti Surya Astuti Zebua Nesti Surya Astuti Zebua nicomse nicomse Nora Fransiska Butar-Butar Nuri Ramadhan Oslen Sijabat Panggabean, Marissa Nurianna Parhusip, Agnes purba, rIcky rikardo Purnama Raya Anjelina Situmorang Putri A. Togatorop Putri Yenni Hutahaean Ratio Julianci Simarmata Rebika Afrina Br Simanjuntak Rebika Afrina Br Simanjuntak Renita Br Peranginangin Renita Br PeranginAngin Rianti Sianturi Ribka Zelin Margaretha Sitepu Rina Anggriani Lumban Raja Ritonga, Nora Winda Ritonga, Roy Ricardo Robin Tarigan Ruth M. Simanjuntak Ruth Mayasari Simanjuntak Ruth Mayasari Simanjuntak Ruth Mayasari Simanjuntak Ruth. Mayasari Simanjuntak Sahlan Tampubolon Sahrun Sahrun Samuel Juliardi Sinaga Sanggam Gultom Santa Veronika Sitepu Santoso, Immanuel Sarah Yulita Sari Sitanggang Sembiring, Thresia Yohana Sihite, Epiphanias Br sihombing, dame ifa Silaban, Naomi Silaban, Riandy Roynaldo Silangit, Menna Sri Ulina Simamora, Rona Marisa Simangunsong, Venny Herawati Simatupang, Aptry Cristina Simbolon, Lolyta Damora Simon M. Panjaitan Simon Panjaitan Simon Panjaitan Simon Panjaitan Simon Panjaitan Sinaga Samuel Juliardi Sinaga, Rianda Sitanggang, Gita Sitepu, Edy Petra Kristian Sitorus, Juriani Situmorang, Adi S Situmorang, Nengsi Syah Putri Sri Rezeki Hutagalung Tambunan, Hardi Telaumbanua, Folala Telaumbanua, Magdalena Susanti Tiofanny, Tiofanny Totaria Simbolon Tutiarny Naibaho Tutiarny Naibaho Ulfani, Rubeka Usman Sidabutar Warni, Remia Widia Oktavia Manurung Windi Asria Lumban Gaol Yanti Marbun Zagoto, Lidwina Shinta Zebua, Berliance Zamira