Does Post-Earnings-Announcement Drift in Stock Prices Reflect a Market Inefficiency? A Stochastic Dominance Approach

CFA Digest ◽  
1998 ◽  
Vol 28 (2) ◽  
pp. 14-15
Author(s):  
Laurie Effron
Keyword(s):  
Stochastic Dominance ◽  
Stock Prices ◽  
Earnings Announcement ◽  
Post Earnings Announcement Drift ◽  
Market Inefficiency

scholarly journals Post-Earnings Announcement Drift in Greece

2015 ◽  
Vol 18 (03) ◽  
pp. 1550019 ◽  
Author(s):  
William Forbes ◽  
George Giannopoulos
Keyword(s):  
Financial Reporting ◽  
Stock Prices ◽  
Stock Exchange ◽  
International Financial Reporting Standards ◽  
Reporting Standards ◽  
Earnings Announcement ◽  
Financial Reporting Standards ◽  
Post Earnings Announcement Drift ◽  
Athens Stock Exchange ◽  
The Impact

This paper presents evidence regarding the post-earnings announcement drift (PEAD) anomaly for the Greek market in the years 2000–2006 (covering earnings announcements in the years 2001–2007). The impact of the introduction of International Financial Reporting Standards on the size and prevalence of the PEAD anomaly is examined. Unlike recent evidence for the US market we find PEAD to be alive and well, and of growing importance in our Greek sample. It may be the adoption of international financial reporting standards (IFRS) has served to reduce earnings predictability in Greece and thus enhance PEAD in the Athens stock exchange (ASE) market. This contrasts strongly with US evidence that the post-earnings-announcement drift anomaly is now waning as more efficient markets and smarter, fundamentals-based, traders arbitrage its impact on stock prices.

Herding on Earnings News: The Role of Institutional Investors in Post–Earnings-Announcement Drift

2017 ◽  
Vol 32 (4) ◽  
pp. 536-560 ◽  
Author(s):  
Linda H. Chen ◽  
Wei Huang ◽  
George J. Jiang
Keyword(s):  
Stock Returns ◽  
Institutional Investors ◽  
Stock Prices ◽  
Institutional Trading ◽  
Earnings Announcement ◽  
Post Earnings Announcement Drift ◽  
Gradual Process ◽  
Earnings Surprises ◽  
Institutional Herding

We examine the role of institutional investors underlying post–earnings-announcement drift (PEAD). Our results show that while institutional investors generally herd on earnings news, such correlated trading among institutions does not eliminate or reduce market underreaction to earnings surprises. Instead, PEAD is significant only in the subsample of stocks where institutions herd in the same direction as earnings surprises. In fact, institutional herding is also positively related to next-quarter earnings announcement returns. We provide evidence that institutional herding on or against earnings news is largely driven by firm characteristics, particularly past firm performance and stock returns. In addition, we find that relative to nontransient institutions, transient institutions have a stronger tendency to herd on earnings information. Finally, based on long-run stock returns, we show that when institutions herd on earnings surprises, institutional trading represents a gradual process of incorporating information into stock prices. However, when institutions herd against earnings surprises, institutional trading slows down stock price discovery.

scholarly journals Corporate Social Responsibility and Post Earnings Announcement Drift: Evidence from Korea

2021 ◽  
Vol 13 (11) ◽  
pp. 6496
Author(s):  
Hyunjung Choi ◽  
Haeyoung Ryu
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
South Korea ◽  
Capital Market ◽  
Stock Prices ◽  
Management Strategies ◽  
Earnings Announcement ◽  
Earnings Information ◽  
Post Earnings Announcement Drift ◽  
Corporate Social

To promote corporate social responsibility (CSR) in emerging markets such as South Korea to the level of developed nations, support from capital market investors is necessary. That is, CSR activities expand if capital market investors actively invest in companies that pursue such activities. This study thus analyzes the influence of the level of CSR activities on the post-earnings-announcement drift (PEAD) of publicly listed companies in South Korea, given the need to analyze the relationship between capital markets and CSR, which is part of sustainability management strategies. A sample of Korean firms listed on the Korean Stock Exchange from 2014 to 2018 was used for the regression analysis. The financial and stock return data were extracted from the KIS-Value database and CSR activities data were collected from the Korea Economic Justice Institute (KEJI) Index. The empirical analysis determined that more inactive companies in terms of CSR exhibited greater PEAD magnitude. Furthermore, high information asymmetry was found to further increase the magnitude of PEAD. These results indicate that investors cannot make swift investment decisions because of their low confidence in the information disclosed by inactive CSR companies; as a result, earnings information is slowly reflected in the stock prices of the period following disclosure. These findings suggest that CSR plays an important role in boosting investor confidence in corporate earnings information.

scholarly journals Rest in Peace Post-Earnings Announcement Drift

2021 ◽  
Author(s):  
Charles Martineau
Keyword(s):  
Financial Markets ◽  
Stock Prices ◽  
Earnings Announcements ◽  
Price Formation ◽  
Future Research ◽  
Earnings Announcement ◽  
Post Earnings Announcement Drift ◽  
Announcement Date ◽  
Earnings Surprises ◽  
Area Of Study

This paper revisits price formation following earnings announcements. In modern financial markets, stock prices fully reflect earnings surprises on the announcement date, leading to the disappearance of post-earnings announcement drifts (PEAD). For large stocks, PEAD have been non-existent since 2006 but has only disappeared recently for microcap stocks. PEAD remain a prevalent area of study in finance and accounting despite having largely disappeared. This paper concludes with a set of recommendations for researchers who conduct such studies to better assess the existence of PEAD and suggests future research avenues to examine price formation following earnings news.

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