scholarly journals Event Study on the Reaction of Stock Returns to Acquisition News

2017 ◽  
Vol 4 (1) ◽  
pp. 33 ◽  
Author(s):  
Fotoh Lazarus Elad ◽  
Nko Solange Bongbee
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Null Hypothesis ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Critical Value ◽  
Market Model ◽  
Test Statistics ◽  
Publicly Traded ◽  
Simple Regression

This study examines the reaction of stock returns to acquisition news. A data of 51 observations of acquiring companies with publicly traded shares on the London Stock Exchange (FTSE100) is used over a period, from July 2012 to May 2013 with an estimation period [-100, -10] and test period [-5, +5]. The market model is applied here in order to predict future stock returns and the use of the simple regression to get the parameters of the regression equation. With this a test statistics obtained on average, is significantly positive and greater than the critical value. Therefore, the event of acquisition does appear to be related significantly to the abnormal returns and the null hypothesis being rejected.

The announcement and implementation reaction to China's margin trading and short selling pilot programme

2014 ◽  
Vol 10 (3) ◽  
pp. 368-384 ◽  
Author(s):  
Saqib Sharif ◽  
Hamish D. Anderson ◽  
Ben R. Marshall
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Short Selling ◽  
Market Model ◽  
Short Sales ◽  
Content Type ◽  
Pilot Programme ◽  
The Impact

Purpose – The purpose of this paper is to investigate how the announcement and implementation of short sales and margin trading regulation affects Chinese stock returns and trading volume. On 31 March 2010, the Chinese regulators launched a pilot programme, allowing short sales and margin trading for 50 Shanghai Stock Exchange and 40 Shenzhen Stock Exchange stocks. Design/methodology/approach – This paper uses an event study approach to compare market model abnormal returns (ARs) of the pilot firms with two distinct matched firm samples. A volume event study is also conducted to examine abnormal trading activity surrounding the key events in the pilot stocks. Findings – Negative ARs follow both the announcement and implementation of short selling and margin trading. This suggests the negative impact of short sales dominates the positive impact of margin trading on an average. Volume also declines, which is consistent with uninformed investors’ seeking to avoid trading against informed traders. Originality/value – The paper appears to be the first to address the impact of both the announcement and implementation of short selling and margin trading rule changes on returns and liquidity using individual stock data.

The impact of qualified audit opinion on stock returns: an empirical study at Amman stock exchange

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rana Bayo Flees ◽  
Sulaiman Mouselli
Keyword(s):  
Stock Returns ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Market Model ◽  
Content Type ◽  
Going Concern ◽  
Study Approach ◽  
Audit Opinions ◽  
The Impact ◽  
First Time

Purpose This paper aims to investigate the impact of qualified audit opinions on the returns of stocks listed at Amman Stock Exchange (ASE) after the introduction of the recent amendments by the International Auditing and Assurance Standard Board (IAASB) on audits reporting and conclusions. It further investigates if results differ between first time qualified and sequenced qualifications, and between plain qualified opinion and qualifications with going concern. Design/methodology/approach Audit opinions’ announcements and stock returns data are collected from companies’ annual reports for the fiscal years 2016 to 2019 while stock returns are computed from stock closing prices published at ASE website. The authors apply the event study approach and use the market model to calculate normal returns. Cumulative abnormal returns (CARs) and average abnormal returns (AARs) are computed for all qualified audit opinions’ announcements. Findings The empirical evidence suggests that investors at ASE do not react to qualified audit opinions announcements. That is, the authors find an insignificant impact of qualified audit opinion announcements on stock returns using both CAR and AAR estimates. The results are robust to first time and sequenced qualifications, and for qualifications with going concern. Results are also robust to the use of risk adjusted market model. Research limitations/implications The insignificant impact of qualified audit opinions on stock returns have two potential conflicting research implications. First, the new amendments introduced to auditors’ report made them more informative and reduce the negative signals contained in the qualified opinions. That is, investors are now aware of the real causes of qualifications and not overreacting to the qualified opinion. Second, the documented insignificant impact confirms that ASE is not a semi-strong form efficient. Practical implications The apparent excessive use of qualifications should ring the bell on whether auditors misuse their power or companies are really in trouble. Hence, the Jordanian regulatory bodies need to warn auditors against the excessive use of qualifications on the one hand, and to raise the awareness of investors on the implications of auditors’ opinions on the other hand. Originality/value This study is innovative in twofold. First, it explores the impact of qualified audit opinions on stock returns after the introduction of new amendments by IAASB at ASE. In addition, it uses event study approach and distinguishes between first time qualified and sequenced qualifications, and between plain qualified opinion and qualifications with going concern. The results are consistent with efficient market theory and behavioral finance explanations.

scholarly journals Effects of changes in stock market index composition on stock returns: event study methodology on Zagreb Stock Exchange

2019 ◽  
Vol 5 (1) ◽  
pp. 43-54
Author(s):  
Tihana Škrinjarić
Keyword(s):  
Stock Market ◽  
Stock Returns ◽  
Event Study ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Stock Market Index ◽  
Market Index ◽  
Study Methodology ◽  
Composition Changes ◽  
Event Study Methodology

AbstractThis paper observes the short-run effects of stock market index composition changes on stock returns on the Zagreb Stock Exchange (ZSE). In that way, event study methodology is employed in order to estimate abnormal returns and compare them amongst three subsets of stocks: those leaving the market index, those entering it, and constantly included stocks. The research included 14 regular and extraordinary revisions of the market index in the period from January 2nd, 2015 until March 21st, 2018. The results have confirmed two research hypotheses: stock exclusions from the market index have a negative effect on stock returns on the ZSE, which is consistent with the price pressure hypothesis; and there exist asymmetric effects of index composition changes on stock returns. This is the first study of this kind on the Croatian stock market, thus more questions need to be answered in future research.

The effectiveness of insider trading disclosure policies: US and EU comparison

2020 ◽  
Vol 18 (3) ◽  
pp. 591-614
Author(s):  
Maha Khemakhem Jardak ◽  
Hamadi Matoussi
Keyword(s):  
Corporate Governance ◽  
Event Study ◽  
Insider Trading ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Market Model ◽  
Content Type ◽  
Market Abuse ◽  
Sarbanes Oxley ◽  
Disclosure Rules

Purpose The purpose of this study is to examine the effectiveness of financial market rules in protecting minorities. Design/methodology/approach The study compares two alternative disclosure rules on insider trading, namely, the market abuse directive (Directive 2004/72/EC), inspired from the United State (US) insider trading regulation enacted by the Sarbanes–Oxley act and the transparency directive enacted by the European (Directive 2004/109/EC) dealing with the crossing of the shareholding threshold. To investigate which one is more effective in signaling reserved information, and thus in reducing information asymmetry, the authors run an event study on the French context, where both regulations are adopted. The data were hand collected from the French stock exchange securities commissions during the two years following the implementation of the two regulations in 2004. The final sample consists of 363 insiders trading and 35 crossing shareholding thresholds for 10 top French firms during the period 2006-2007. Findings The results show that the French market reacts significantly to insider trading, but poorly to the crossing shareholding thresholds. Abnormal returns are greater after insider purchases than after crossing up thresholds. These findings support the superiority of the insider disclosure regulation, as it has better information content and provides better protection to minorities. Research limitations/implications The study contributes to the corporate governance literature by comparing two disclosure-trading policies. The authors conclude that regulation of disclosure of insider trading along the lines of US disclosure rules is more informative to the market and thus more relevant and important than disclosure of cross-threshold trades. Practical implications The study contributes to the corporate governance literature by comparing two disclosure-trading policies. The authors conclude that regulation of disclosure of insider trading along the lines of US disclosure rules is more informative to the market and thus more relevant and important than disclosure of cross-threshold trades. This finding can be helpful for the securities lawmakers and regulators in the process of insider trading law enforcement. Originality/value Previous researchers approached the question of insider trading focusing on the identity of insiders. In the research, the authors address the question from another perspective, namely, the crossing of thresholds. Another methodological contribution of the study is the use of a market model that incorporates GARCH (generalized autoregressive conditional heteroskedastic) effect and time-varying systematic risk parameter (β), which is recommended to tackle the classical event study problem of detecting the exact timing of the event.

scholarly journals Do Chinese M&A activities create shareholder value in the short run? Evidence from Chinese-German cross-border takeovers

2020 ◽  
Vol 2 (2) ◽  
pp. 33-46
Author(s):  
Jing Wang ◽  
Michel Charifzadeh ◽  
Tim Alexander Herberger
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Shareholder Value ◽  
Abnormal Returns ◽  
Information Leakage ◽  
Market Model ◽  
Cross Border ◽  
Acquiring Firms ◽  
Short Run ◽  
Value Effect

Our paper investigates the response of acquiring firms’ stock returns around the announcement date in cross-border mergers and acquisitions (M&A) between listed Chinese acquirers and German targets. We apply an event study methodology to examine the shareholder value effect based on a sample of M&A deals over the most recent period of 2012-2018. We apply a market model event study based on the argumentation of Brown and Warner (1985) and use short-term observation periods according to Andrade, Mitchell, and Stafford (2001) as well as Hackbarth and Morellec (2008). The results indicate that the announcement of M&A involving German targets results in a positive cumulative abnormal return of on average 2.18% for Chinese acquirers’ shareholders in a five-day symmetric event window. Furthermore, we found slight indications of possible information leakage prior to the formal announcement. Although it shows that the size of acquiring firms is not necessarily correlated with the positive abnormal returns in the short run, this study suggests that Chinese acquirers’ shareholders gain higher abnormal returns when the German targets are non-listed companies.

scholarly journals Analisis Dampak Shut Down US Goverment Tahun 2018 Pada Bursa Efek Indonesia

2020 ◽  
Vol 13 (1) ◽  
pp. 1-11
Author(s):  
Choirun Nisful Laili
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Paired Sample ◽  
Cumulative Abnormal Returns ◽  
The Us ◽  
Us Government ◽  
Before And After

The purpose of this study was to determine the differences in returns, abnormal returns, and cumulative abnormal returns of shares before and after the US govermet 2018 shut down event. The object of research is companies that belong to the LQ-45 stock group on the Indonesia Stock Exchange. Research uses the type of event study. The results of the study using paired sample t-tests showed no differences in stock returns and abnormal returns for periods before and after the 2018 US government shut down event. For cumulative abnormal returns before and after the 2018 US government shut down event, differences were found.

AN ANALYSIS OF ABNORMAL RETURNS ASSOCIATED WITH STOCK SPLIT

2021 ◽  
pp. 1-14
Author(s):  
JYOTI PANDEY ◽  
VINAY KANDPAL ◽  
NEERAJ NAUTIYAL
Keyword(s):  
Stock Returns ◽  
Stock Prices ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Market Model ◽  
Stock Splits ◽  
Event Window ◽  
Stock Split ◽  
Secondary Information ◽  
The Impact

A stock split is when a company’s outstanding shares are divided into multiple shares by issuing more shares to current shareholders without eroding their stake’s value. The company typically takes these actions to increase liquidity and marketability, lower stock prices, attract new investors and so on. The purpose of this study is to examine the impact of stock splits on the stock returns during the study period. Companies listed on the Bombay Stock Exchange (BSE) and those included in the S&P BSE 500 Index are included in the stock split data. The study period covers 14 years, between 2008 and 2021. Market model event study methodology is being employed to analyze the average abnormal returns (AARs), cumulative abnormal returns (CARs) and cumulative AAR (CAARs) using an event window period consisting of 31 days ([Formula: see text]). The study is largely based on secondary information from the CMIE Prowess IQ Database and the official BSE website. The [Formula: see text]-test, mean and standard deviation were used to investigate the influence of stock split announcements on share prices and the performance of stock splits before and after the announcement. The study found that on ([Formula: see text]), ([Formula: see text]), ([Formula: see text]) and ([Formula: see text]) and on the day of the announcement ([Formula: see text]), the market reacted favorably with significant positive abnormal returns. On ([Formula: see text]) and ([Formula: see text]) days, however, there were significant negative abnormal returns. The null hypothesis is accepted as the CAR for the whole 31-day event window, which is 0.0221, with a [Formula: see text]-statistic of 1.692, which is insignificant.

Impact of Stock Splits and Rights Issue Announcements on Market Price: Evidence from India

2016 ◽  
Vol 7 (2) ◽  
Author(s):  
Babitha Rohit ◽  
Prakash Pinto ◽  
Shakila B.
Keyword(s):  
Stock Market ◽  
Stock Returns ◽  
Stock Exchange ◽  
Market Price ◽  
Abnormal Returns ◽  
Market Model ◽  
Stock Splits ◽  
Indian Stock Market ◽  
Rights Issue ◽  
The Impact

The current paper studies the impact of two events i.e stock splits and rights issue announcement on the stock returns of companies listed on the Bombay Stock Exchange. The study consists of a sample of 90 announcements for stock splits and 29 announcements for rights issue during the period 2011-2014. Market model is used to calculate the abnormal returns of securities. Positive Average Abnormal Returns were observed for the two events on the day their announcements, however they are not statistically significant. The study concludes that the Indian stock market is efficient in its semi-strong form.

scholarly journals Conteúdo Informacional dos Ratings de Crédito no Brasil: Um Estudo de Evento

2013 ◽  
Vol 11 (4) ◽  
pp. 503 ◽  
Author(s):  
Flávia Cruz de Souza Murcia ◽  
Fernando Dal-Ri Murcia ◽  
José Alonso Borba
Keyword(s):  
Stock Returns ◽  
Event Study ◽  
Credit Rating ◽  
Abnormal Returns ◽  
Bad News ◽  
Market Model ◽  
Stock Market Reaction ◽  
It Impacts ◽  
Standard And Poor's ◽  
Rating Downgrades

This study analyzes the effect of credit rating announcements on stock returns in the Brazilian market during 1997-2011. We conducted an event study using a sample of 242 observations of listed companies, 179 from Standard and Poor’s and 63 from Moody’s, to analyze stock market reaction. Abnormal returns have been computed using the Market Model and CAPM for three windows: three days (-1, +1), 11 days (-5, +5) and 21 days (-10, +10). We find statistically significant abnormal returns in days -1 and 0 for all the three types of rating announcement tested: initial rating, downgrades and upgrades. For downgrades, consisted with prior studies, our results also showed negative abnormal returns for all practically all windows tested. Overall, our findings evidence the rating announcements do have information content, as it impacts stock returns causing abnormal returns, especially when they bring ‘bad news’ to the market.

Asymmetric price responses to stock addition to and deletion from the Athens Stock Exchange Index

2018 ◽  
Vol 44 (4) ◽  
pp. 406-423
Author(s):  
George Papachristou ◽  
Stephanos Papadamou ◽  
Eleftherios Spyromitros
Keyword(s):  
Stock Returns ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Policy Implications ◽  
Stock Index ◽  
Market Model ◽  
Investment Strategies ◽  
Content Type ◽  
Time Period ◽  
Negative Effect

Purpose The purpose of this paper is to investigate the response of investors to the announcements on the inclusion and exclusion of companies from the FTSE-ASE 20 index. Design/methodology/approach Data on the inclusion and exclusion of companies from the FTSE-ASE 20 index in the period 2000-2012 were used. The authors performed an event study analysis using a constant return model and a market model. Two different measures of aggregated abnormal returns, namely the cumulating abnormal returns and the buy-and-hold abnormal return, were used in this investigation. Findings The results suggest that the exclusion of a company from the index has a significant negative effect on stock returns. Specifically, such a stock takes more than 15 days to recover. However, for a company’s inclusion in the index, the authors observe short-lived positive reactions on stock returns. Practical implications Capital market regulators and investors should find the policy implications of this paper meaningful. Investment strategies can be implemented on the basis of the news of exclusion from the index, which can lead to higher performance for investors. As far as authorities are concerned, the decision of inclusion and exclusion to the most significant stock index in the Greek market should be carefully considered because it creates financial instability for a significant time period. Originality/value By using a battery of parametric and non-parametric econometric tests, the existence of abnormal returns of the FTSE-ASE 20 index is explored over a long time period, including the recent financial crisis.

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