scholarly journals ANALISIS REAKSI PASAR MODAL INDONESIA TERHADAP PERISTIWA PELEDAKAN BOM BUNUH DIRI DI SURABAYA (Studi Kasus pada Perusahaan LQ 45 yang Terdaftar Di Bursa Efek Indonesia)

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Jumriaty Jusman
Keyword(s):  
Event Study ◽  
Abnormal Return ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Suicide Bombing ◽  
Market Reactions ◽  
Suicide Bombers ◽  
Significant Difference ◽  
Before And After ◽  
Adjusted Model

Abstract: This research is conducted on the basis of observations of events that occur in the country that can prevent security stability. One of the effects of these events is a market reaction. The purpose of this study was to determine whether the capital market reacted to the suicide bombings that occurred in Surabaya, by observing the Abnormal Return behavior obtained by investors and the difference in Avarage Abnormal Return on the Indonesia Stock Exchange (BEI) before and after the bombing. This research was conducted using the event study method with the Market Adjusted Model approach. The sample used is a company whose shares have been listed and included in the calculation of the LQ-45 index. Statistical test of Abnormal Return, Avarage Abnormal Return using paired sample t -test. The results of the first hypothesis testing are accepted, because there is a significant abnormal return for investors due to the explosion of Suicide Bombers in Surabaya. While the results of testing the second hypothesis were rejected, because there was no significant difference obtained by investors between Avarage Abnormal Return before and after the suicide bombing in Surabaya Keywords: Abnormal returns, Event Studies, Bombs in Surabaya, LQ-45, Market Adjusted Models, Market Reactions Abstrak: Penelitian ini dilukan atas dasar pengamatan terhadap peristiwa-peristiwa yang terjadi di dalam negeri yang dapat menggaggu stabilitas keamanan. Salah satu dampak dari peristiwa (event) tersebut yaitu terjadi reaksi pasar. Tujuan penelitian ini adalah untuk mengetahui apakah pasar modal bereaksi terhadap peristiwa Bom Bunuh diri yang terjadi di Surabaya, dengan mengamati perilaku Abnormal Return yang diperoleh oleh investor serta perbedaan Avarage Abnormal Return di Bursa Efek Indonesia (BEI) sebelum dan sesudah peristiwa Bom tersebut. Penelitian ini dilakukan dengan metode event study dengan pendekatan Market Adjusted Model. Sampel yang digunakan adalah perusahaan yang sahamnya telah tercatat dan masuk  dalam perhitungan indeks LQ-45. Uji statistik terhadap Abnormal Return , Avarage Abnormal Return menggunakan Uji t. Hasil pengujian hipotesis pertama diterima, karena terdapat Abnormal Return signifikan bagi investor yang diakibatkan peristiwa peledakan Bom Bunuh Diri di Surabaya.  Sedangkan hasil pengujian hipotesis kedua ditolak, karena tidak ada perbedaan signifikan yang diperoleh investor antara Avarage Abnormal Return sebelum dan sesudah peristiwa Bom bunuh diri di Surabaya Kata kunci : Abnormal return, Event Study , Bom di Surabaya, LQ-45, Market Adjusted Model, Reaksi Pasar

scholarly journals Indonesia stock exchange: Abnormal return amid pandemic

2021 ◽  
Vol 6 (01) ◽  
pp. 15-20
Author(s):  
Gunistiyo Gunistiyo ◽  
Jaka Waskito ◽  
Yuni Utami
Keyword(s):  
Abnormal Return ◽  
Time Window ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Investment Decisions ◽  
The Other ◽  
Market Reactions ◽  
First Case ◽  
Significant Difference ◽  
Before And After

This study aims to reveal the behavior of investors on the Indonesia Stock Exchange (IDX) before and during (early) the COVID-19 pandemic. This study is an extension of references to understand market reactions in response to future crises. This study is an event study with a time window of 76 trading days before and after the first case was officially announced by the authorities in Indonesia. Taking a sample of stocks included in the Liquid Index (LQ) 45, this study measures the abnormal return and transaction volume during the pre and post-first official announced cases and test the whole data by t-test. The results of data analysis indicate that there is no difference in abnormal returns, but there is a significant difference in transaction volume. These findings indicate that, in general, the Indonesian market is quite efficient, as evident from the absence of different abnormal returns. On the other hand, the market also appears to be cautious in making investment decisions amid uncertainty.

scholarly journals Reaksi Pasar Terhadap Peristiwa Pemilihan Presiden Indonesia 2019

2019 ◽  
Vol 29 (3) ◽  
pp. 1026
Author(s):  
I Gede Aditya Baskara ◽  
Made Gede Wirakusuma
Keyword(s):  
Event Study ◽  
Presidential Election ◽  
Stock Prices ◽  
Abnormal Return ◽  
Market Reaction ◽  
Stock Exchange ◽  
Statistical Tests ◽  
Abnormal Returns ◽  
T Test ◽  
Significant Difference

This research is an event study that aims to determine the market reaction arising from the 2019 Indonesian presidential election, against companies listed in the infrastructure stock sector on April 17, 2019, using the abnormal return indicator. This study uses secondary data in the form of daily stock prices per company during the period with the population of the infrastructure sector listed on the Indonesia Stock Exchange. The statistical tests used to test hypotheses are descriptive statistical tests, normality tests and one sample t-test. The results of the one sample t-test on abnormal return is that there is no significant difference, which means the market does not respond to the event. These results indicate that the efficient market is not answered in the 2019 Indonesian presidential election due to the absence of abnormal returns in it. Keywords : Event Study, Market Reaction, Abnormal Return, 2019 Indonesian Presidential Election.

scholarly journals CAPITAL MARKET REACTION BEFORE AND AFTER THE ANNOUNCEMENT OF THE FIRST CASE OF COVID-19 IN INDONESIA

2021 ◽  
Vol 2 (2) ◽  
pp. 301-312
Author(s):  
Sarlina Sari
Keyword(s):  
Abnormal Return ◽  
Quantitative Research ◽  
Stock Exchange ◽  
Comparative Method ◽  
Abnormal Returns ◽  
Market Capitalization ◽  
First Case ◽  
Significant Difference ◽  
Before And After ◽  
Sample Test

This study aims to determine the differences in abnormal return, frequency of trade, and market capitalization before and after the informations regarding the first reporting of COVID-19 in Indonesia on the Indonesia Stock Exchange. The research population is all companies that entered into Top Leadings in Market Capitalization companies on the Stock Exchange in the period Februari – April 2020, namely as many as 50 companies. The sample in this study was taken using the census method, meaning that the number of samples taken was equal to the number of members of the population. To test the hypothesis of this study using a paired sample test. The observation began 30 days before the event and 30 days after the event. This study uses quantitative research in the comparative method. The finding show that the information caused the market was approved. This is proven by the existence of significant results in daily tests on the indicators. The results were also significant in the combined abnormal return test and the combined market capitalization test. The trade comparison test results show a significant difference which means there was a market-panic towards trading activities after the event that caused some frequency differences, before and after the event in terms of trade transactions. So, the results of this study indicate that there are differences in abnormal returns, frequency of trade, and market capitalization before and after the announcement of the informations regarding the first reporting of COVID-19 in Indonesia.

scholarly journals Pengaruh Employee Stock Ownership Program Terhadap Average Abnormal Return Perusahaan Perbankan

2020 ◽  
Vol 1 (1) ◽  
pp. 47-55
Author(s):  
Agung Suprayogi ◽  
Abdul Basyith
Keyword(s):  
Stock Price ◽  
Abnormal Return ◽  
Trading Volume ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Stock Ownership ◽  
Employee Stock Ownership ◽  
Average Abnormal Return ◽  
Significant Difference ◽  
Before And After

This research was conducted to see the effect of the implementation of the Employee Stock Ownership Program on average abnormal returns of banking companies before and after applying ESOP and trading volume. The aim is to find out the difference in average abnormal return before and after applying the ESOP. The variable used in this study is average abnormal return. The period of this research event is 20 days, 10 days, 5 days and 1 day which are divided before and days after the date of application. This study examines banking companies that apply the Employee Stock Ownership Program listed on the Indonesia Stock Exchange so that data is obtained from trading in the company's stock price. The sampling criteria used a purposive sampling method in order to obtain 9 samples. The hypothesis method used in the normally distributed data is Paired Samples T-test. The result is that all average abnormal return periods both on the first and the last date of the ESOP application have a significant value >0.05, which means that the entire event period of the variable is proven to have no significant difference both before and after the banking company applies the Employee Stock Ownership Program.

scholarly journals THE ANALYSIS OF ABNORMAL RETURN, LIQUIDITY AND STOCK RISK DIFFERENCE DURING PRE AND POST STOCK SPLIT IN IDX PERIOD 2010 – 2014

2017 ◽  
Vol 8 (1) ◽  
pp. 20
Author(s):  
Umi Mardiyati ◽  
Rachmattullah Rachmattullah ◽  
Gatot Nazir Ahmad
Keyword(s):  
Abnormal Return ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Sampling Period ◽  
Risk Difference ◽  
Rank Test ◽  
Distribution Data ◽  
Significant Difference ◽  
Stock Split ◽  
Before And After

This study aimed to analyze the differences of abnormal return, liquidity and risk stock before and after the stock split on companies listed in Indonesia Stock Exchange 2010 - 2014. The sample are 29 companies selected by purposive sampling. Period of observations used in this study is 5 days before the stock split and 5 days after the stock split. The analysis technique used is the Kolmogorov-Smirnov test for normality test, paired sample t-test for normally distributed data and Wilcoxon signed rank test if distribution data is not normal. Results from the study showed that there is no significant difference in abnormal returns between before and after stock split period, there are differences in liquidity between the before and after stock split period and there is no difference in stock risk between before and after the stock split period.   Keywords : Stock Split, Abnormal Return, Liquidity, Stock Risk

scholarly journals DAMPAK COVID-19 TERHADAP ABNORMAL RETURN DAN VOLUME PERDAGANGAN SAHAM

2022 ◽  
Vol 18 (1) ◽  
pp. 160-181
Author(s):  
Elvina Cahya Suryadi ◽  
Nungky Viana Feranita
Keyword(s):  
Natural Disaster ◽  
Event Study ◽  
Abnormal Return ◽  
Trading Volume ◽  
Quantitative Research ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Volume Activity ◽  
Before And After ◽  
Disaster Event

The COVID-19 pandemic is a non-natural disaster that has a huge impact around the world. This research is a quantitative research with event study method. The purpose of this research is to test the capital market reaction by looking at abnormal returns and trading volume activity before and after the COVID-19 non-natural disaster. The event day in this study was April 13rd, 2020 when the Presidential Decree was issued regarding the designation of COVID-19 as a national disaster. Using purposive sampling method, the sample of this study were 27 companies engaged in the hotel, restaurant, and tourism sub-sectors listed on the Indonesia Stock Exchange. The event period is 11 days, namely 5 days before the event, 1 day at the time of the event and 5 days after the event. Data analysis using t-test and wilxocon signed ranks test. The results of this study are: 1) there is no abnormal return during the event period, 2) there is no difference in the average abnormal return before and after the COVID-19 non-natural disaster event, 3) there is no difference in the average trading volume activity before and after the COVID-19 non-natural disaster event and after the COVID-19 non-natural disaster event. Keywords: Event Study, Abnormal Return, Trading Volume Activity, COVID-19.

scholarly journals The market reactions to share repurchase announcements on the JSE: an event study

2016 ◽  
Vol 13 (1) ◽  
pp. 191-205 ◽  
Author(s):  
Kiran Punwasi ◽  
Pradeep Brijlal
Keyword(s):  
Event Study ◽  
Abnormal Return ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Share Repurchase ◽  
Announcement Effect ◽  
Market Reactions ◽  
Average Abnormal Return ◽  
Repurchase Announcements ◽  
A Share

This study examines the market reactions to share repurchase announcements made by companies listed on the Johannesburg Stock Exchange from the years 2003 to 2012. The authors use an event study methodology and the Capital Asset Pricing Model to determine if there was an announcement effect when a share repurchase announcement is made. The analyses reveal that consistent with signalling theory and the announcement effect, share repurchase announcements are associated with positive abnormal returns. The average abnormal return and cumulative average abnormal return noted was 0.46% and 3.81%, respectively, for the event period (t-20, t+20). There was an observable trend of declining share prices before the share repurchase announcement. The authors also found no significant evidence that repurchasing firms have market timing ability when executing a share repurchase announcement. From a value investor’s perspective, a share repurchase program conveys a very strong signal of a healthy company

scholarly journals DAMPAK UNDANG-UNDANG REPUBLIK INDONESIA NO.11 TAHUN 2016 TENTANG PENGAMPUNAN PAJAK TERHADAP KONDISI BURSA EFEK INDONESIA

2018 ◽  
pp. 217
Author(s):  
Magna Mayputra Sumadi ◽  
Luh Putu Wiagustini
Keyword(s):  
Abnormal Return ◽  
Market Reaction ◽  
Stock Exchange ◽  
Statistical Tests ◽  
Abnormal Returns ◽  
Market Reactions ◽  
Tax Amnesty ◽  
Average Abnormal Return ◽  
Before And After ◽  
The Difference

This study aims to analyze the difference of the mean significance of abnormal return before and after the event and to test the market reaction due to the tax amnesty event. This research uses a sample of 34 stocks of LQ45 in Indonesia Stock Exchange by using purposive sampling sampling method. This research is done by method of event study study with Market Adjusted Model. The period of the event examined for each event is 15 trading days, ie seven days before the event, one day at the time of the event and seven days after the event. The statistical tests were performed to compare average abnormal returns before and after events and to see market reactions around the event. The result of the research shows that there is no difference of average abnormal return before and after the event of tax amnesty policy, the end of the tax amnesty period I, the end of the tax amnesty period II and the end of the tax amnesty period III. There is no market reaction around the event of the tax amnesty policy, but there is market reaction in the event of the end of the tax amnesty period I, the event of the end of the second amnesty tax period and the end of the tax amnesty period III. The end of the tax amnesty period I, II and III contain information.

scholarly journals THE PHENOMENON OF RATIFYING REVISION OF THE KPK LAW: HOW INVESTOR REACTED?

2021 ◽  
Vol 11 (1) ◽  
pp. 51-63
Author(s):  
Versiandika Yudha Pratama ◽  
Happy Sista Devy
Keyword(s):  
Event Study ◽  
Stock Price ◽  
Abnormal Return ◽  
Abnormal Returns ◽  
Secondary Data ◽  
Sampling Technique ◽  
T Test ◽  
Average Abnormal Return ◽  
Significant Difference ◽  
Before And After

This research aimed to determine there are difference in average abnormal returns of companies in the Jakarta Islamic Index (JII) before and after phenomenon the revised Corruption Eradication Commission Act, which is on September 17th, 2019. This research use event study for method and the data in this study are secondary data in the form of stock price. Sampling technique uses purposive sampling method. Determined sampling technique, 27 companies were obtained as research samples. Tests conducted are one sample t-test and paired sample t-test. The result of the one sample t-test showed that the phenomenon of ratifying the revision of the KPK law becomes meaningful information to investors and investors show that reactions to these event. It showed by the result of significant and negative abnormal returns in the few day before and several days after phenomenon. The result of the second hypothesis testing indicate that there is no significant difference the average abnormal return before and after the ratification of revised Corruption Eradication Commission Act   Keywords: Revision of KPK Law, Average Abnormal Return, Event Study

scholarly journals Analisis Perbedaan Abnormal Return, Volume Perdagangan Saham Sebelum dan Sesudah Pengumuman Corporate Image Award

2018 ◽  
Vol 1 (2) ◽  
pp. 25-31
Author(s):  
Robert Jao ◽  
David Jimmiawan
Keyword(s):  
Abnormal Return ◽  
Trading Volume ◽  
Stock Exchange ◽  
Research Data ◽  
Corporate Image ◽  
Volume Activity ◽  
Expected Return ◽  
Market Reactions ◽  
Before And After ◽  
Adjusted Model

This research aims to investigate if there was difference in abnormal return and trading volume activity beforeand after the announcement of Corporate Image Award. The market reaction is measured by abnormal returnand trading volume activity. The sampel used in this research are all companies which accept the appreciationof Corporate Image Award that listed in Indonesian Stock Exchange (IDX) in 2015, 2016, and 2017 period. Thisresearch uses event study to show market reactions arount the event period, at five days before and after theannouncement by used a market adjusted model for expected return. The research data that used is secondarydata that consist of daily closing price of shares and daily and daily trading volume activity. The statistic methodused to test the hypotheses was Wilcoxon Signed Test. The results of this research proves that there is nodifference abnormal return and trading volume activity before and after Corporate Image Award announcement.

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