The Effects of Bankruptcy on the Predictability of Price Formation Processes on Warsaw’s Stock Market

e-Finanse ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 32-42
Author(s):  
Paweł Fiedor ◽  
Artur Hołda

AbstractIn this study we investigate how bankruptcy affects the market behaviour of prices of stocks on Warsaw’s Stock Exchange. As the behaviour of prices can be seen in a myriad of ways, we investigate a particular aspect of this behaviour, namely the predictability of these price formation processes. We approximate their predictability as the structural complexity of logarithmic returns. This method of analysing predictability of price formation processes using information theory follows closely the mathematical definition of predictability, and is equal to the degree to which redundancy is present in the time series describing stock returns. We use Shannon’s entropy rate (approximating Kolmogorov-Sinai entropy) to measure this redundancy, and estimate it using the Lempel-Ziv algorithm, computing it with a running window approach over the entire price history of 50 companies listed on the Warsaw market which have gone bankrupt in the last few years. This enables us not only to compare the differences between predictability of price formation processes before and after their filing for bankruptcy, but also to compare the changes in predictability over time, as well as divided into different categories of companies and bankruptcies. There exists a large body of research analysing the efficiency of the whole market and the predictability of price changes en large, but only a few detailed studies analysing the influence of external stimulion the efficiency of price formation processes. This study fills this gap in the knowledge of financial markets, and their response to extreme external events.

2016 ◽  
Vol 7 (2) ◽  
pp. 179 ◽  
Author(s):  
Rodrigo F. Malaquias ◽  
Anderson Martins Cardoso ◽  
Gabriel Alves Martins

In recent years, the convergence of accounting standards has been an issue that motivated new studies in the accounting field. It is expected that the convergence provides users, especially external users of accounting information, with comparable reports among different economies. Considering this scenario, this article was developed in order to compare the effect of accounting numbers on the stock market before and after the accounting convergence in Brazil. The sample of the study involved Brazilian listed companies at BM&FBOVESPA that had American Depository Receipts (levels II and III) at the New York Stock Exchange (NYSE). For data analysis, descriptive statistics and graphic analysis were employed in order to analyze the behavior of stock returns around the publication dates. The main results indicate that the stock market reacts to the accounting reports. Therefore, the accounting numbers contain relevant information for the decision making of investors in the stock market. Moreover, it is observed that after the accounting convergence, the stock returns of the companies seem to present lower volatility.


2014 ◽  
Vol 4 (2) ◽  
pp. 121
Author(s):  
Masdalena Masdalena ◽  
Aftoni Sutanto

This research aims to determine whether there are differences in stock returns before and after the announcement of the rights issue on the Indonesia Stock Exchange 2009-2013 period. This study was conducted on 43 companies listed in the Indonesia Stock Exchange right issues in the year 2009 to 2013, with a purposive sampling method. This research used the t-test analysis test by way Paired Sample Test with the observation period (event window) there are 20 days, t-10 (10 days prior to the announcement of the rights issue) and t + 10 (10 days after the announcement of the right issue). The announcement of the test results are known to contain information because the announcement led to market tereaksinya indicated by the presence pf abnormal return that occurred and the results of t-test menunjukkan significance value 0.036<α0.05 to distinction stock returns 10 days prior to the stock return 10 days after the announcement of the right issue. This that information is not leaked.


2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Ridwan Zulpi Agha

The economic crisis of 2008, better known by the Subprime Mortgage crisis, greatly affecting the economic conditions and the capital markets at that time, especially for the economy and capital markets in the country where was the crisis came from, the U.S. and also in other developed countries, such as Japan Germany, France, etc. Behind of gloomy capital market conditions in some of these countries, there are still a few other countries that are not affected at all and even influence those that experience an increase in capital market transactions. According to economic experts, one of these countries is Indonesia, with one of the indications is that the share purchase transaction to the consumer sector firms in Indonesia was increased significantly. That's why this study was conducted to examine the effect of the economic crisis of 2008 to the indicators stock return sector consumption listed on Indonesia Stock Exchange (BEI). This study uses data of annual financial statements published by companies in the consumer sector from 2004 up to 2012. Analysis techniques used in this study is a multiple linear regression with different test of  an average value and test of different regression models. The results showed, there were significant differences in the regression model stock returns in the period before and after the economic crisis, and there was significant difference in the average value of the variable ROA and CR as a result of the economic crisis Subprime Mortgage


Author(s):  
Novyandri Taufik Bahtera

This study aims to determine whether there is a difference between stock returns before and after the announcement of both increases and decreases in bond ratings. This study is classified as a case study with an observation period of 5 days before and 5 days after the announcement of the bond rating. The population of this study is all companies listed on the Indonesia Stock Exchange that announced the ratings of bonds from 1999 to 2009, which made a total of 331 bond ratings in 52 companies. The sample was chosen using a purposive sampling method and 24 samples were obtained for the announcement of the increase in bond ratings and 18 samples for the announcement of the bond rating decline. Data testing is done using paired sample t-test. Based on the results of the study it can be concluded that (1) there is no significant difference in stock returns around the date of the announcement of the increase in bond ratings. This indicates that the announcement of an increase in bond ratings does not bring information to investors. (2) There is a significant difference in stock returns around the date of the announcement of the decline in bond ratings. This indicates that the announcement of the downgrade of bonds carries information content for investors.


2017 ◽  
Vol 6 (1) ◽  
Author(s):  
Erni Masdupi ◽  
Megawati Megawati ◽  
Rio Irawan

This reseach aims to determine the effect of the stock split analysis of the trading volume and stock returns. This study using a quantitative research design causal. In this study population is all companies doing stock split at the company, which is listed in the Indonesia Stock Exchange (IDX) on 2011-2015, whose number is not known and the sample totaling 22 companies. Data were collected by using documentation. Data analyzed using paired sample t-test. The results of this study indicate that (1) there was no change in the volume of stock trading before and after the stock split and (2) there was no difference in stock returns before and after the stock split on the company stock split in the Indonesia Stock Exchange (BEI) 2011-2015.


2019 ◽  
Vol 3 (2) ◽  
pp. 245
Author(s):  
Yehofa Wajin

Go public companies in order to increase funds, companies can conduct corporate actions, namely rights issues. Right issue is a new share offering from the company for old investors with a system offering it to an old investor first. The information about the rights issue was published as an announcement that could be used to see market reactions. This market reaction is measured by abnormal returns to see stock returns and trading volume activity to see stock liquidity.This research intend to see abnormal stock returns and stock liquidity before and after the announcement of the rights issue with a sample of infrastructure sector companies in the Indonesia Stock Exchange for the period 2015-2018 with purposive sampling technique of sample selection, according to predetermined criteria then obtained 6 companies.This research is a descriptive study using quantitative methods. The test used in this study is the normality test then using a paired sample t-test. The results of this study show no significant difference from abnormal returns and stock liquidity before and after the announcement of the rights issue.


2020 ◽  
Vol 13 (1) ◽  
pp. 1-11
Author(s):  
Choirun Nisful Laili

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.


Author(s):  
Fabian Muniesa

The paper examines, through a case study on the Arizona Stock Exchange, how computerization challenged the definition of the stock exchange in the context of North-American financial markets in the 1990’s. It analyses exchange automation in terms of trials of explicitness: the computational formulation of what an exchange is calls for a detailed explication of the (variable, often conflicting and unanticipated) processes and properties of price formation. The paper focuses in particular on the argument of the concentration of liquidity in one single point, which was central to the development of the Arizona Stock Exchange (an electronic call auction). It then asks what kind of revolution is the ‘explicitness revolution’ in the design of allocation mechanisms.


Author(s):  
Javier Moreno-Lázaro

ABSTRACTIn this article I examine the history of the Mexican Stock Exchange from the end of the Revolution until 1975, under the hypothesis that it did not carry out its pertinent functions in corporate financing but was rather an economic and political instrument of the government. Due to state intervention and the deficient definition of property rights, its functioning was completely anomalous except during this period. The article represents a first step in the study of the role of the stock exchange in Latin American corporatist economic models.


Author(s):  
Rinto Noviantoro

Rinto Noviantoro: The purpose of this study to examine the impact of the announcement of bond rating on stock returns prior (the announcement of bond rating), stock return on day (bond rating announcement). Data used are daily stock return by Jakarta Stock Exchange (JSE), bond rating announcement by PT. PEFINDO, and firm are listing in Jakarta Stock Ekchange between 2012 to 2014. This research using 29 emitens as the sample bosed on purposive sampling. This data are analyzed with paired sample t-test and Oneway ANOVA.The analysis indicates that : (1) the defference are not significant between stock return an day bond rating announcement with before day bond rating announcement, (2) the difference are not significant between stock return on day bond rating announcement with after day bond rating announcement, (3) the difference are significant between stock return before bond rating announcement with after bond announcement (4) avarage stock return on day, before and after bond rating announcement are not significant differences.Key words: Obligasi, Return Saham


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