scholarly journals Impact of COVID-19 on the Stock Market by Industrial Sector in Chile: An Adverse Overreaction

2021 ◽  
Vol 14 (11) ◽  
pp. 548
Author(s):  
Pedro Antonio González ◽  
José Luis Gallizo
Keyword(s):  
Stock Market ◽  
Stock Price ◽  
Abnormal Returns ◽  
Industrial Sector ◽  
Market Model ◽  
Investment Strategies ◽  
Significant Finding ◽  
Share Prices ◽  
Average Return ◽  
Industrial Sectors

This paper studies the reaction of share prices in the Chilean securities market at the sectoral level to the arrival of COVID-19 in the country. The following question is answered: Did the Chilean market act efficiently before the arrival of COVID-19? To answer this question, an event study using a 10-day investment return window was applied to the industrial sectors that make up the IPSA (Selective Stock Price Index). To obtain the abnormal returns (AR) and cumulative abnormal returns (CAR) for the event window, three models were used: (1) adjusted average return, (2) adjusted market return, and (3) the market model. The results of the study show an overreaction to market losses, except in the utilities industry, causing greater losses after the event, which shows that information is slow to be incorporated in the previous stage and suggests that the prices of the assets do not reflect all the information available in the market. A significant finding is that the Chilean stock market responded inefficiently in the face of the arrival of the pandemic. This information is useful for investors in the formation of portfolios and/or investment strategies with a view to the long term.

CONSTRUCTION AND ANALYSIS OF STOCK MARKET MODEL USING ADG: AUTOMATICALLY DEFINED GROUPS

2002 ◽  
Vol 02 (04) ◽  
pp. 433-446 ◽  
Author(s):  
AKIRA HARA ◽  
TOMOHARU NAGAO
Keyword(s):  
Stock Market ◽  
Genetic Programming ◽  
Stock Price ◽  
Price Change ◽  
Market Model ◽  
Investment Strategies ◽  
Artificial Market ◽  
Tail Distribution ◽  
Artificial Stock Market ◽  
Real Market

In real market, the squares of stock price change rates have high autocorrelation, and the change rates show high peak and fat tail distribution. With the aim of analyzing the mechanism of the stock price change, we construct an artificial stock market composed of multiple agents whose investment strategies are represented by tree-shaped programs. The market is optimized by using a Genetic Programming so that the change of its stock price resembles that of "real" stock market statistically. In order to perform an efficient optimization and to analyze agents' behavior easily, we use ADG; Automatically Defined Groups previously proposed by authors. We show experimentally that complex changes such as real market appear in the proposed artificial market. Moreover we analyze the interaction of agents which causes realistic stock price changes.

scholarly journals The Analysis of Government Intervention and Stock Market during Crises Periods

2019 ◽  
Vol 1 (01) ◽  
Author(s):  
Fiesty Utami ◽  
Ai Chi Hsu
Keyword(s):  
Exchange Rate ◽  
Stock Market ◽  
Stock Price ◽  
Currency Crises ◽  
Government Intervention ◽  
Abnormal Returns ◽  
Central Banks ◽  
Market Model ◽  
Government Interventions ◽  
The Government

The government, through central banks, has a monetary authority to do an intervention, either directly or indirectly. Central banks do a direct intervention by exchanging reserves to influence the exchange rate and do an indirect intervention by increasing or decreasing the interest rate. However, when the currency crises happen, smoothing the currency movements by doing government intervention may reduce fears in the financial markets. This study examines the government intervention effect in 27 countries on the stock market during the crises periods, either during the Asian currency crises or currency crises of each country. To estimate abnormal returns, this study uses the traditional market model. Then, in the lack of official government intervention data, this study uses the proxy of government intervention to estimate the intervention activities. This study shows that in currency crises periods, the government interventions do not effectively impact exchange rate, stock price, and stock market return.

scholarly journals The Impact of COVID-19 on the Stock Price of Socially Responsible Enterprises: An Empirical Study in Taiwan Stock Market

2021 ◽  
Vol 18 (4) ◽  
pp. 1398
Author(s):  
Kuo-Jung Lee ◽  
Su-Lien Lu
Keyword(s):  
Stock Market ◽  
Stock Prices ◽  
Stock Price ◽  
Abnormal Returns ◽  
Recovery Phase ◽  
Socially Responsible ◽  
Cumulative Impact ◽  
Study Approach ◽  
Price Performance ◽  
The Impact

This study examines the impact of the COVID-19 outbreak on the Taiwan stock market and investigates whether companies with a commitment to corporate social responsibility (CSR) were less affected. This study uses a selection of companies provided by CommonWealth magazine to classify the listed companies in Taiwan as CSR and non-CSR companies. The event study approach is applied to examine the change in the stock prices of CSR companies after the first COVID-19 outbreak in Taiwan. The empirical results indicate that the stock prices of all companies generated significantly negative abnormal returns and negative cumulative abnormal returns after the outbreak. Compared with all companies and with non-CSR companies, CSR companies were less affected by the outbreak; their stock prices were relatively resistant to the fall and they recovered faster. In addition, the cumulative impact of the COVID-19 on the stock prices of CSR companies is smaller than that of non-CSR companies on both short- and long-term bases. However, the stock price performance of non-CSR companies was not weaker than that of CSR companies during times when the impact of the pandemic was lower or during the price recovery phase.

scholarly journals The effects of dividend policy to stock prices of listed companies in Vietnam stock market

2020 ◽  
Author(s):  
Thị Lam Hồ ◽  
Thùy Phương Trâm Hồ
Keyword(s):  
Stock Market ◽  
Stock Prices ◽  
Stock Price ◽  
Dividend Policy ◽  
Corporate Value ◽  
Business Managers ◽  
Dividend Payment ◽  
Share Prices ◽  
Finance Management ◽  
The Impact

Dividend policy is one of the most important policies in corporate finance management. Understanding the impact of dividend policy on the distribution of profits, corporate value and thus on the stock price is important for business managers to make policies and for investors to make investment decisions. This study is conducted to evaluate the impact of dividend policy on share prices for companies listed on Vietnam’s stock market in the period from 2010 to 2018, based on the availability of continuous dividend payment data. Using the FGLS method with panel data of 100 companies listed on the HoSE and HNX, we find evidence of the impact of dividend policy on stock prices, supporting supports the bird in the hand and the signal detection theories. The findings of this study help to suggest a few recommendations for business managers and investors.

The effect of the imposition of a public reprimand on the stock price of companies in Malaysia

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Emie Famieza Zainudin ◽  
Hafiza Aishah Hashim ◽  
Shahnaz Ismail
Keyword(s):  
Stock Prices ◽  
Stock Price ◽  
Design Methodology ◽  
Negative Impact ◽  
Abnormal Returns ◽  
Investment Decisions ◽  
Market Model ◽  
Market Reactions ◽  
Content Type ◽  
A Company

Purpose This paper aims to examine the effect of the imposition of public reprimands on the underlying stock prices of companies in Malaysia. Design/methodology/approach Data on 148 companies that received public reprimands during the period from 2007 to 2013 were collected from the Bursa Malaysia website to analyse the market reactions to the imposition of public reprimands. Findings Based on a market model of abnormal returns, the empirical result showed that the imposition of a public reprimand had a negative impact on a company’s stock price. Moreover, when a market model of average abnormal returns (AAR) was used, the result indicated that companies that had received a public reprimand had a negative AAR value. Research limitations/implications The findings from this study have implications for shareholders in making their investment decisions because they can switch their investments to other companies and markets after a company in which they are interested or have made an investment has received a public reprimand. Originality/value There is limited research on the imposition of public reprimands and the effect that it has on companies in developing countries. Hence, this study contributes to research in this area by providing evidence on the effect of public reprimand on stock price reactions in the context of a developing country, namely, Malaysia.

scholarly journals Does switching trading venues create value? Evidence from Hong Kong

2020 ◽  
Vol 27 (2) ◽  
pp. 209-222 ◽  
Author(s):  
Johnny K.H. Kwok
Keyword(s):  
Hong Kong ◽  
Stock Market ◽  
Stock Price ◽  
Abnormal Returns ◽  
Excess Returns ◽  
Trading Activity ◽  
Content Type ◽  
Growth Enterprise Market ◽  
Two Measures ◽  
Hong Kong Stock Market

PurposeThe purpose of this paper is to study whether switching trading venues create value in the Hong Kong stock market.Design/methodology/approachBy using an event study, the paper investigates the abnormal returns (AR) earned by firms in the Growth Enterprise Market (GEM) relating to switching to the Main Board (MB). Two measures, turnover of the stock and Amihud’s (2002) illiquidity ratio, are used to examine the liquidity effects.FindingsThe switch is accompanied by a long-term increase in stock price for low liquidity firms only. High liquidity firms underperform with persistent negative excess returns after switching, while the transient negative excess returns in low liquidity firms reverse gradually. The results further show a significant increase in trading activity for low liquidity firms following the switch, while there is a significant decline in both trading activity and liquidity in firms with high liquidity. The overall results suggest that moving from GEM to the MB is beneficial to low liquidity firms but detrimental to high liquidity firms.Originality/valueThis study is the first to investigate whether moving from GEM to the MB creates value in the Hong Kong stock market.

Stock market reaction to cash dividends: evidence from the Nigerian stock market

2019 ◽  
Vol 45 (3) ◽  
pp. 366-380
Author(s):  
Friday Kennedy Ozo ◽  
Thankom Gopinath Arun
Keyword(s):  
Stock Market ◽  
Event Study ◽  
Stock Price ◽  
Abnormal Returns ◽  
Cash Dividend ◽  
Content Type ◽  
Price Reaction ◽  
Stock Market Reaction ◽  
Dividend Announcements ◽  
Stock Price Reaction

PurposeVery little is known about the effect of dividend announcements on stock prices in Nigeria, despite the country’s unique institutional environment. The purpose of this paper is, therefore, to provide empirical evidence on this issue by investigating the stock price reaction to cash dividends by companies listed on the Nigerian Stock Exchange.Design/methodology/approachStandard event study methodology, using the market model, is employed to determine the abnormal returns surrounding the cash dividend announcement date. Abnormal returns are also calculated employing the market-adjusted return model as a robustness check and to test the sensitivity of the results toβestimation. The authors also examine the interaction between cash dividends and earnings by estimating a regression model where announcement abnormal returns are a function of both dividend changes and earnings changes relative to stock price.FindingsThe study find support for the signaling hypothesis: dividend increases are associated with positive stock price reaction, while dividend decreases are associated with negative stock price reaction. Companies that do not change their dividends experience insignificant positive abnormal returns. The results also suggest that both dividends and earnings are informative, but dividends contain information beyond that contained in earnings.Research limitations/implicationsThe sample for the study includes only cash dividend announcements occurring without other corporate events (such as interim dividends, stock splits, stock dividends, and mergers and acquisitions) during the event study period. The small firm-year observations may limit the validity of generalizations from these conclusions.Practical implicationsThe findings are useful to researchers, practitioners and investors interested in companies listed on the Nigerian stock market for their proper strategic decision making. In particular, the results can be used to encourage transparency and good governance practices in the Nigerian stock market.Originality/valueThis paper adds to the very limited research on the stock market reaction to cash dividend announcements in Nigeria; it is the first of its kind employing a unique cash dividends data.

IMMEDIATE AND LONGER-TERM STOCK PRICE DYNAMICS FOLLOWING LARGE STOCK PRICE CHANGES

2020 ◽  
Vol 15 (01) ◽  
pp. 2050002
Author(s):  
ANDREY KUDRYAVTSEV
Keyword(s):  
Stock Returns ◽  
Stock Price ◽  
Trading Volume ◽  
Abnormal Returns ◽  
Market Model ◽  
Conditional Volatility ◽  
Short Term ◽  
Price Increases ◽  
Cumulative Abnormal Returns ◽  
Price Reversal

The study explores the correlation between the immediate and the longer-term stock returns following large daily price moves. Following the previous literature, which documents a tendency for price reversals after initial large price moves, I suggest that if a large stock price move is immediately followed by a short-term price drift, then it may indicate that the company-specific shock is more completely incorporated in the stock price, significantly increasing the probability of subsequent longer-term price reversal. Analyzing a vast sample of large stock price moves, I document that negative (positive) longer-term stock price reversals after large price increases (decreases) are significantly more pronounced if the latter are immediately followed by relatively high (low) short-term cumulative abnormal returns, that is, by short-term price drifts. The effect remains significant after accounting for additional company-specific (size, market model beta, historical, or conditional volatility) and event-specific (stock’s return and trading volume on the event day) factors.

scholarly journals Stock price reaction to cash dividend announcements in Vietnam

2017 ◽  
Vol 24 (02) ◽  
pp. 74-89
Author(s):  
Truong Nguyen Xuan ◽  
Huong Dao Mai ◽  
Anh Nguyen Thi Van
Keyword(s):  
Stock Prices ◽  
Stock Price ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Cash Dividend ◽  
Share Prices ◽  
Price Reaction ◽  
Cumulative Abnormal Returns ◽  
Stock Price Reaction ◽  
The Uk

This study attempts to investigate the stock price reaction to divi-dend announcements using data of Vietnamese listed firms on Hochiminh Stock Exchange (HOSE). Standard event study meth-odology has been employed on a sample of 198 cash dividend an-nouncements made in 2011. The results show that stock prices react significantly and positively to the announcements of cash dividends, including both dividend increasing and dividend decreasing events. It is also plausible that cumulative abnormal returns exhibit an in-creasing trend before announcement yet a decreasing trend after announcement dates. More specifically, we find positively signifi-cant cumulative abnormal returns of around 1.03% on announce-ment dates; other larger windows also demonstrate positive abnor-mal returns of around 1.3%. In addition, cash dividends have differ-ent effects on share prices of firms from different industries. These results support the signaling hypothesis and are also consistent with prior findings of empirical research done on more developed mar-kets, i.e. the US and the UK.

scholarly journals The Determinants of the Stock Price Performance of Analyst Recommendations

2019 ◽  
Vol 15 (11) ◽  
pp. 25
Author(s):  
Yaling Lin ◽  
Liang-Chien Lee ◽  
Tsung-Li Chi ◽  
Chen-Chang Lo ◽  
Wai-Shen Chung
Keyword(s):  
Stock Price ◽  
Stock Exchange ◽  
Abnormal Returns ◽  
Market Model ◽  
Firm Characteristics ◽  
Cross Sectional ◽  
Insider Ownership ◽  
Taiwan Stock Exchange ◽  
Price Performance ◽  
Abnormal Performance

This study examines the cross-sectional determinants of the price reaction to analysts’ recommendations disseminated through various type of media and for firms listed in Taiwan stock markets. We measure abnormal returns using the market model of event study. Based on the type of media (traditional media/social media) and the type of exchange (Taiwan Stock Exchange (TWSE)/Taipei Exchange (TPEx)), we classify the combined sample observations into four samples and run quantile regressions to investigate whether the relation will be uniform across various quantile levels. Our results show that the relation between firm characteristics and cumulative abnormal returns is not homogeneous across various quantiles of abnormal returns. Our evidence indicates that in general the relation tends to be stronger for firms at higher performance quantile levels and tends to be more pronounced for TWSE firms. The strongest relation is found for the Traditional/TWSE sample, where the abnormal returns are positively related to insider ownership and prior-period earnings, and negatively related to institutional shareholding and price-to-book ratio for firms in the highest abnormal performance quantile.

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