scholarly journals Stock Investment and Excess Returns: A Critical Review in the Light of the Efficient Market Hypothesis

2019 ◽  
Vol 12 (2) ◽  
pp. 97 ◽  
Author(s):  
Qianwei Ying ◽  
Tahir Yousaf ◽  
Qurat ul Ain ◽  
Yasmeen Akhtar ◽  
Muhammad Shahid Rasheed
Keyword(s):  
Capital Markets ◽  
Stock Prices ◽  
Intrinsic Value ◽  
Efficient Market Hypothesis ◽  
Investment Strategies ◽  
Excess Returns ◽  
Efficient Market ◽  
Market Anomalies ◽  
Replication Studies ◽  
Stock Investment

The expansion of investment strategies and capital markets is altering the significance and empirical rationality of the Efficient Market Hypothesis. The vitality of capital markets is essential for efficiency research. The authors explore here the development and contemporary status of the efficient market hypothesis by emphasizing anomaly/excess returns. Investors often fail to get excess returns; however, thus far, market anomalies have been witnessed and stock prices have diverged from their intrinsic value. This paper presents an analysis of anomaly returns in the presence of the theory of the efficient market. Moreover, the market efficiency progression is reviewed and its present status is explored. Finally, the authors provide enough evidence of a data snooping issue, which violates and challenges the existing proof and creates room for replication studies in modern finance.

scholarly journals Efficient Market Hypothesis and Market Anomalies of LQ 45 Index in Indonesia Stock Exchange

2019 ◽  
Vol 3 (2) ◽  
pp. 107
Author(s):  
Helma Malini
Keyword(s):  
Stock Prices ◽  
Stock Exchange ◽  
Weak Form ◽  
Efficient Market Hypothesis ◽  
Share Price ◽  
Exchange Market ◽  
Efficient Market ◽  
Market Anomalies ◽  
Share Prices ◽  
Year Effect

The paper attempts to investigate the validity of the Efficient Market Hypothesis and the existence of calendar effect on Indonesia Stock Exchange Market. Initially, this paper discusses types of EMH also the literature available regarding this topic. The sample of research is twenty one securities listed in LQ 45 Index on the Indonesia Stock Exchange Market (IDX), this paper applies non parametric tests which are Run test, Kruskal-Wallis test, Mann-Whitney test  parametric test which are series correlation test, One-way Anova test and independent t-test two sample. Based on the results of the test of this paper, it can be concluded that Weak Form Efficient Market exists in LQ 45 Index of IDX while Day of the Week Effect and Month of the Year Effect are not found to exist in LQ 45 Index of IDX. In conclusion, it is observed that the effect of stock prices for the sample companies on future prices is very meager and an investor cannot reap profits by using the historical share price data as the current share prices already reflect the effect of past share prices data.

scholarly journals THE EFFICIENT MARKET HYPOTHESIS: A CRITICAL REVIEW OF LITERATURE AND METHODOLOGY

Ekonomika ◽  
2014 ◽  
Vol 93 (2) ◽  
pp. 7-23 ◽  
Author(s):  
Augustas Degutis ◽  
Lina Novickytė
Keyword(s):  
Stock Market ◽  
Market Efficiency ◽  
Capital Markets ◽  
Intrinsic Value ◽  
Weak Form ◽  
Efficient Market Hypothesis ◽  
Current Status ◽  
Efficient Market ◽  
Baltic Countries ◽  
The Baltic

The development of the capital markets is changing the relevance and empirical validity of theefficient market hypothesis. The dynamism of capital markets determines the need for efficiency research. The authors analyse the development and the current status of the efficient market hypothesis with an emphasis on the Baltic stock market. Investors often fail to earn an excess profit, but yet stock market anomalies are observed and market prices often deviate from their intrinsic value. The article presents an analysis of the concept of efficient market. Also, the market efficiency evolution is reviewed and its current status is analysed. This paper presents also an examination of stock market efficiency in the Baltic countries. Finally, the research methods are reviewed and the methodology of testing the weak-form efficiency in a developing market is suggested. 

An Empirical Study on Efficient Market Hypothesis with reference to FMCG Sector

GIS Business ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 109-126
Author(s):  
Nitin Tanted ◽  
Prashant Mistry
Keyword(s):  
Stock Prices ◽  
Stock Price ◽  
Abnormal Returns ◽  
Weak Form ◽  
Efficient Market Hypothesis ◽  
Controversial Issues ◽  
Efficient Market ◽  
Price Movements ◽  
Run Test ◽  
Stock Price Movements

One of the highly controversial issues in the area of finance is “Efficient Market Hypothesis”. Efficient Market Hypothesis states that, “In an efficient market, all available price information is reflected in the stock prices and it is not possible to generate abnormal returns compared to other investors.” A lot of studies conducted previouslyto test the Efficient Market Hypothesis, confirmed the theory until recent years, when some academicians found it to be non-applicable in financial markets. According to them, it is possible to forecast the stock price movements using Technical Analysis. The results of various studies have been inconclusive and indefinite about the issue. This study attempted to test the efficiency of FMCG Sector stocks in India in its weak form. For the study, closing prices of top 10 stocks from Nifty FMCG index has been taken for the 5-year period ranging from 1st October 2014 to 30th September 2019. Wald-Wolfowitz Run test has been used to test the haphazard movements in the stock price movements. The results indicated that FMCG sector stocks does support the Efficient Market Hypothesis and exhibit efficiency in its weak form. Hence, it is not possible to accurately predict the price movements of these stocks.

scholarly journals Nonlinearities and Chaos: A New Analysis of CEE Stock Markets

Mathematics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 707
Author(s):  
Claudiu Tiberiu Albulescu ◽  
Aviral Kumar Tiwari ◽  
Phouphet Kyophilavong
Keyword(s):  
Capital Markets ◽  
Stock Markets ◽  
Transition Period ◽  
Chaotic Behavior ◽  
Efficient Market Hypothesis ◽  
Eastern European ◽  
Price Behavior ◽  
Financial Systems ◽  
Efficient Market ◽  
Level Of Significance

After a long transition period, the Central and Eastern European (CEE) capital markets have consolidated their place in the financial systems. However, little is known about the price behavior and efficiency of these markets. In this context, using a battery of tests for nonlinear and chaotic behavior, we look for the presence of nonlinearities and chaos in five CEE stock markets. We document, in general, the presence of nonlinearities and chaos which questions the efficient market hypothesis. However, if all tests highlight a chaotic behavior for the analyzed index returns, there are noteworthy differences between the analyzed stock markets underlined by nonlinearity tests, which question, thus, their level of significance. Moreover, the results of nonlinearity tests partially contrast the previous findings reported in the literature on the same group of stock markets, showing, thus, a change in their recent behavior, compared with the 1990s.

Testing the weak form of efficient market hypothesis for socially responsible and Shariah indexes in the USA

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Abbas Khan ◽  
Muhammad Yar Khan ◽  
Abdul Qayyum Khan ◽  
Majid Jamal Khan ◽  
Zia Ur Rahman
Keyword(s):  
Stock Prices ◽  
Arima Model ◽  
Weak Form ◽  
Efficient Market Hypothesis ◽  
Future Price ◽  
Short Term ◽  
Socially Responsible ◽  
Efficient Market ◽  
Content Type ◽  
The Us

Purpose By testing the weak form of efficient market hypothesis (EMH) this study aims to forecast the short-term stock prices of the US Dow and Jones environmental socially responsible index (SRI) and Shariah compliance index (SCI). Design/methodology/approach This study checks the validity of the weak form of EMH for both SCI and SRI prices by using different parametric and non-parametric tests, i.e. augmented Dickey-Fuller test, Philip-Perron test, runs test and variance ratio test. If the EMH is invalid, the research further forecasts short-term stock prices by applying autoregressive integrated moving average (ARIMA) model using daily price data from 2010 to 2018. Findings The research confirms that a weak form of EMH is not valid in the US SRI and SCI. The historical data can predict short-term future price movements by using technical ARIMA model. Research limitations/implications This study provides better guidance to risk-averse national and international investors to earn higher returns in the US SRI and SCI. This study can be extended to test the EMH of Islamic equity in the Middle East and North Africa region and other top Islamic indexes in the world. Originality/value This study is a new addition to the existing literature of equity investment and price forecasting by comparing and investigating the market efficiency of two interrelated US SRI and SCI.

scholarly journals Evidence for and Against the Validity of Efficient Market Hypothesis

2018 ◽  
Vol 56 (3) ◽  
pp. 369-387
Author(s):  
Miljan Leković
Keyword(s):  
Market Efficiency ◽  
Financial Market ◽  
Efficient Market Hypothesis ◽  
Strong Form ◽  
Efficient Market ◽  
Market Anomalies ◽  
Development Path

Abstract The concept of an efficient financial market, in literature known as efficient market hypothesis (EMH), has had a long and difficult development path from the idea itself to its final conception, as one of the central paradigms in modern finance. It has been tested and critically reviewed for decades, and the two basic types of problems it has encountered are theoretical paradoxes and market anomalies. The aim of the paper is to examine the validity of EMH through various financial market efficiency tests and the results of previous research. The intention is to answer the question of whether, despite theoretical paradoxes and market anomalies, the notion of validity can be attributed to the concept of an efficient financial market. In this regard, the paper presents plenty of evidence for and against the validity of weak, semi-strong, and strong form of EMH, to conclude that, even after more than half a century of research, financial literature has not reached a consensus on the presence or absence of the validity of this hypothesis.

scholarly journals Value Investing - Essence And Ways Of Finding Undervalued Assets

2015 ◽  
Vol 21 (2) ◽  
pp. 344-348 ◽  
Author(s):  
Elitsa Petrova
Keyword(s):  
Intrinsic Value ◽  
Market Price ◽  
Efficient Market Hypothesis ◽  
Efficient Market ◽  
Value Investing ◽  
True Value ◽  
Short Period ◽  
Margin Of Safety ◽  
The Difference ◽  
Investing Value

Abstract Efficient market hypothesis considers that because many talented analysts constantly searching the market for the deals in a short period, after a certain point of time there are not so attractive deals. According to the hypothesis, successful investors owe their success more to luck than to their skills. The paper presents the Value investing. Value investing is an investment paradigm, which stems from the ideas of Benjamin Graham and David Dodd. The proponents, including the chairperson of Berkshire Hathaway Warren Buffett, argue that the essence of value investing is to buy shares at a price lower than their true value. The difference between the market price and intrinsic value of the stock Graham called the “margin of safety”.

scholarly journals An Empirical Analysis of the Efficient Market Hypothesis in China’s Stock Market

2021 ◽  
Vol 4 (3) ◽  
pp. 1-5
Author(s):  
Jiaxuan Xu
Keyword(s):  
Stock Market ◽  
Financial Markets ◽  
Empirical Research ◽  
Empirical Analysis ◽  
Stock Prices ◽  
Efficient Market Hypothesis ◽  
Security Market ◽  
Stock Trading ◽  
Efficient Market ◽  
Basic Framework

The efficient market hypothesis is one of the most important theories in finance. According to this hypothesis, in a stock market with sound laws, good functions, high transparencies, and extensive competitions, all valuable information is timely, accurately, and fully reflected in the trend of stock prices including the current and future values of enterprises. Unless there are market manipulations, it would be impossible for investors to gain more above the average profits in the market by analyzing former prices. Since the efficient market hypothesis has been introduced, it has become an interest in the empirical research of the security market. It is one of the most controversial investment theories and there are many evidences supporting and also opposing this hypothesis. Nevertheless, this hypothesis still holds an important status in the basic framework of mainstream theories in modern financial markets. By analyzing simulated investment transactions in regard to stock trading of three different enterprises, this paper verified that the efficient market hypothesis is partially valid.

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