2018•Journal of Business and Behavioural EntrepreneurshipOpen access

Analyzing Abnormal Return Before And After The Announcement Of Merger And Acquisition In 2018

Sonny Haryanto, Umi Mardiyati, Agung Dharmawan Buchdadi

Abstract

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.

Open-access reader

About this research paper

What this paper is about

Why it matters

OpenAlex reports 8 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Abnormal return, Mergers and acquisitions, Business, Stock (firearms), Sample (material), Stock price, Monetary economics, Econometrics