Open AccessAnalyzing Abnormal Return Before And After The Announcement Of Merger And Acquisition In 2018
Author(s) -
Sonny Haryanto,
Umi Mardiyati,
Agung Dharmawan Buchdadi
Publication year - 2018
Publication title -
journal of business and behavioural entrepreneurship
Language(s) - English
Resource type - Journals
ISSN - 2580-0272
DOI - 10.21009/jobbe.002.1.02
Subject(s) - abnormal return , mergers and acquisitions , business , stock (firearms) , sample (material) , stock price , monetary economics , econometrics , accounting , financial economics , economics , finance , stock exchange , series (stratigraphy) , mechanical engineering , paleontology , chemistry , chromatography , engineering , biology
This study aims to analyze the abnormal returns before and after the announcement of mergers and acquisitions in the companies listed on the IDX 2018. In this study the observation period taken was three days before and after the announcement of mergers and acquisitions with the number of samples observed were 9 companies. The method for calculating abnormal returns used is the market adjusted return by using an intraday stock price of 15 minutes. Based on testing hypotheses conducted by paired sample t-test, it was found that there were no significant differences in abnormal returns before and after the announcement of mergers and acquisitions in each 15 minute period.