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All Journal Jurnal Sains Manajemen dan Bisnis Indonesia MABIS: Jurnal Manajemen Bisnis Syariah Jurnal Ekonomi Lembaga Layanan Pendidikan Tinggi Wilayah I Jurnal Manajemen Bisnis Syariah
Lifatin Nada
UIN Sunan Kalijaga Yogyakarta
Religion Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Social Sciences

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Abnormal Return Analysis of Heatwave Announcement in China Has the Potential to Increase Indonesia's Coal Exports in Bumi and Adro Stocks Lea Fathra Azha Nabiela; Lifatin Nada; Darmawan Darmawan
Jurnal Ekonomi Lembaga Layanan Pendidikan Tinggi Wilayah I Vol. 3 No. 1 (2023): Article Research Volume 3 Issue 1, May 2023
Publisher : LLDIKTI Wilayah 1 Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54076/juket.v3i1.263

Abstract

This study aims to determine the heatwave announcement in China can increase Indonesia's coal export potential. On the abnormal Return on shares of PT Bumi Resource Tbk (BUMI) and PT Adaro Energy Indonesia Tbk (ADRO). The method used to analyze this research is an event study. Hypothesis testing was carried out using normality tests, paired sample t-tests and one-sample T-tests. From the results of this study, it was found that there was no significant abnormal difference in return after the announcement was published. Therefore, the results were obtained that the published announcement did not contain information for investors because there was no abnormal return around the event.
Analisis Reaksi Pasar Terhadap Naiknya Harga Bbm Bagi Perusahaan Pada Sektor Pangan Yang Terdaftar Di BEI Falah Sadjida; Lifatin Nada; Darmawan Darmawan
Jurnal Sains Manajemen dan Bisnis Indonesia Vol 12, No 2 (2022): Jurnal Sains Manajemen dan Bisnis Indonesia
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jsmbi.v12i2.8956

Abstract

Tujuan penelitian ini yaitu untuk meneliti dan menguji bagaimana reaksi pasar terhadap kenaikan harga BBM bagi PT Indofood Sukses Makmur Tbk, PT Indofood CBP Sukses Makmur Tbk, PT Industri Jamu dan Farmasi Sido Muncul Tbk dan PT Ultrajaya Milk Industry Trading Company Tbk. Metode penelitian ini adalah metode studi peristiwa (event study) yaitu metode yang meneliti bagaimana reaksi pasar terhadap suatu informasi berita. Data yang digunakan dalam penelitian ini yaitu data sekunder yang didapatkan dari harga saham yang disajikan oleh finance.yahoo.com dan diolah menggunakan software aplikasi Exel dan SPSS versi 26 kemudian dianalisis menggunakan uji normalitas, uji one sample t-test, uji paired samples test dan uji wilcoxon signed ranks test. Hasil dari penelitian ini berdasarkan abnormal return yaitu reaksi pasar terhadap peristiwa kenaikan harga BBM dikategorikan lemah atau dapat dikatakan pasar bersifat pasar efisien lemah.
Analisis Harga Saham Perusahaan Pertambangan Batubara PT Bukit Asam Tbk dan PT. Aneka Tambang Tbk Vikry Dimas Saputra; Lifatin Nada; Darmawan Darmawan
MABIS: Jurnal Manajemen Bisnis Syariah Vol 3, No 2 (2023): MABIS: Jurnal Manajemen Bisnis Syariah
Publisher : Universitas Islam Negeri Mahmud Yunus Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/mabis.v3i2.8165

Abstract

The purpose of this research is to analyze the effect of falling coal reference unit prices in the world on the stock prices of coal mining companies in Indonesia, an analytical study of PT Bukit Asam Tbk. And PT Aneka Tambang Tbk. In this paper it is intended or useful to find out whether the fall in world coal prices has affected the stock prices of the two companies so that an investor can find out the condition of the company’s shares before and after the incident occurred. To get the results the author uses the event study method. Event study is research that observes the impact of an information announcement that affects the price of a company’s securities. Obtained from the use of non-parametric research methods, the wilcoxon signed rank test found that the company PT Bukit Asam Tbk. Not affected by this event, in another sense even though international (worldwide) coal prices are declining, even so this event does not affect the share price of this company’s coal mining company. However, it is inversely proportional to the Company PT Aneka Tambang Tbk. Because because of these events it was found that this company was affected by the consequences of these events.
Analisis Harga Saham Perusahaan Pertambangan Batubara PT Bukit Asam Tbk dan PT. Aneka Tambang Tbk Vikry Dimas Saputra; Lifatin Nada; Darmawan Darmawan
MABIS: Jurnal Manajemen Bisnis Syariah Vol 3, No 2 (2023): MABIS: Jurnal Manajemen Bisnis Syariah
Publisher : Universitas Islam Negeri Mahmud Yunus Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/mabis.v3i2.8165

Abstract

The purpose of this research is to analyze the effect of falling coal reference unit prices in the world on the stock prices of coal mining companies in Indonesia, an analytical study of PT Bukit Asam Tbk. And PT Aneka Tambang Tbk. In this paper it is intended or useful to find out whether the fall in world coal prices has affected the stock prices of the two companies so that an investor can find out the condition of the company’s shares before and after the incident occurred. To get the results the author uses the event study method. Event study is research that observes the impact of an information announcement that affects the price of a company’s securities. Obtained from the use of non-parametric research methods, the wilcoxon signed rank test found that the company PT Bukit Asam Tbk. Not affected by this event, in another sense even though international (worldwide) coal prices are declining, even so this event does not affect the share price of this company’s coal mining company. However, it is inversely proportional to the Company PT Aneka Tambang Tbk. Because because of these events it was found that this company was affected by the consequences of these events.
Co-Authors Darmawan Darmawan Falah Sadjida Lea Fathra Azha Nabiela Vikry Dimas Saputra