IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES

The objective of the study is to verify the impact of subsequent events disclosed on Abnormal Return of shares in companies participating in the Ibovespa. For statistical analysis, it was applied Events Study technic to determine whether events disclosed as subsequent ones caused abnormal stock retu...

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Principais autores: Kos, Sonia Raifur, Edwards Barros, Claudio Marcelo, Colauto, Romualdo Douglas
Formato: Online
Idioma:por
Publicado em: Portal de Periódicos Eletrônicos da UFRN
Endereço do item:https://periodicos.ufrn.br/ambiente/article/view/9896
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record_format ojs
institution Periódicos UFRN
collection Portal de Pediódicos Eletrônicos da UFRN
language por
format Online
author Kos, Sonia Raifur
Edwards Barros, Claudio Marcelo
Colauto, Romualdo Douglas
spellingShingle Kos, Sonia Raifur
Edwards Barros, Claudio Marcelo
Colauto, Romualdo Douglas
IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
author_facet Kos, Sonia Raifur
Edwards Barros, Claudio Marcelo
Colauto, Romualdo Douglas
author_sort Kos, Sonia Raifur
title IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
title_short IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
title_full IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
title_fullStr IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
title_full_unstemmed IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES
title_sort impact of events subsequent disclosure on abnormal return: study in ibovespa companies
description The objective of the study is to verify the impact of subsequent events disclosed on Abnormal Return of shares in companies participating in the Ibovespa. For statistical analysis, it was applied Events Study technic to determine whether events disclosed as subsequent ones caused abnormal stock returns. After that, the data was subjected to confirmatory analysis by multivariate procedures using Regression with Panel Data. Then, an individualized analysis was performed on the date of occurrence of 28 different types of Subsequent Events disclosed. The results show that 16 events had at least one significant abnormal return in the time window, while the other 12 did not impact the market. The research helps to explain to managers how the market reacts to the disclosure of material events occurring between the close of the reporting period and the date of authorization of the issuance of the financial statements, mainly because of subsequent events are related, usually with significant values within the organization.
publisher Portal de Periódicos Eletrônicos da UFRN
publishDate 2017
url https://periodicos.ufrn.br/ambiente/article/view/9896
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spelling oai:periodicos.ufrn.br:article-98962021-10-19T13:57:42Z IMPACT OF EVENTS SUBSEQUENT DISCLOSURE ON ABNORMAL RETURN: STUDY IN IBOVESPA COMPANIES IMPACTO DE DIVULGACIÓN DE ACONTECIMIENTOS POSTERIORES EN LA DEVOLUCIÓN ANORMAL: EL ESTUDIO DE EMPRESAS IBOVESPA IMPACTO DA DIVULGAÇÃO DE EVENTOS SUBSEQUENTES NO RETORNO ANORMAL: ESTUDO EM COMPANHIAS DO IBOVESPA Kos, Sonia Raifur Edwards Barros, Claudio Marcelo Colauto, Romualdo Douglas Subsequent Events. Abnormal Returns. Informational content. Relevance of Accounting Information. Acontecimientos Posteriores. Las devoluciones anormales. Contenido informativo. La relevancia de la información contable. Eventos Subsequentes. Retornos Anormais. Conteúdo Informacional; Relevância da Informação Contábil. The objective of the study is to verify the impact of subsequent events disclosed on Abnormal Return of shares in companies participating in the Ibovespa. For statistical analysis, it was applied Events Study technic to determine whether events disclosed as subsequent ones caused abnormal stock returns. After that, the data was subjected to confirmatory analysis by multivariate procedures using Regression with Panel Data. Then, an individualized analysis was performed on the date of occurrence of 28 different types of Subsequent Events disclosed. The results show that 16 events had at least one significant abnormal return in the time window, while the other 12 did not impact the market. The research helps to explain to managers how the market reacts to the disclosure of material events occurring between the close of the reporting period and the date of authorization of the issuance of the financial statements, mainly because of subsequent events are related, usually with significant values within the organization. El objetivo del estudio es verificar el impacto de los acontecimientos posteriores dados a conocer en la rentabilidad anormal de las acciones de las empresas que participan en el Ibovespa. Para el análisis estadístico se empleó Eventos Estudio para determinar si la divulgación de los acontecimientos posteriores causó rendimientos de las acciones anormales. Después de eso, los datos fueron sometidos a análisis de confirmación por procedimientos multivariantes utilizando regresión con datos de panel. Además, realizó un análisis individual en la fecha de ocurrencia de 28 diferentes tipos de eventos posteriores dadas a conocer. Los resultados muestran que 16 eventos tuvieron al menos un Retorno Anormal significativo en la ventana de tiempo, mientras que el otro 12 no tuvo impacto en el mercado. La investigación ayuda a explicar a los gerentes cómo reacciona el mercado a la divulgación de los acontecimientos posteriores que ocurren entre el final del período de notificación y la fecha de autorización de la emisión de los estados financieros, principalmente a causa de los acontecimientos posteriores se relacionan, por lo general con valores significativos dentro de la organización. O objetivo do estudo consiste em verificar o impacto da divulgação de Eventos Subsequentes no Retorno Anormal das ações em empresas que participam do IBOVESPA. Para tratamento estatístico empregou-se Estudo de Eventos para verificar se a divulgação de Eventos Subsequentes provocou Retorno Anormal das ações. Após isso, os dados foram submetidos à análise confirmatória por meio de procedimentos multivariados utilizando a Regressão com Dados em Painel. Em seguida foi realizada uma análise individualizada na data da ocorrência de 28 tipos diferentes de Eventos Subsequentes divulgados. Os resultados denotam que 16 eventos apresentaram pelo menos um Retorno Anormal significativo na janela temporal, enquanto os outros 12 não impactaram o mercado. A pesquisa contribui para explicar aos gestores como o mercado reage a divulgação de Eventos Subsequentes ocorridos entre o fechamento do período contábil e a data de autorização da emissão das demonstrações contábeis, principalmente pelo fato dos Eventos Subsequentes estarem relacionados, normalmente, com valores expressivos dentro da organização.   Portal de Periódicos Eletrônicos da UFRN 2017-07-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://periodicos.ufrn.br/ambiente/article/view/9896 REVISTA AMBIENTE CONTÁBIL - Universidade Federal do Rio Grande do Norte; Vol. 9 No. 2 (2017): Jul./Dez.; 60-79 REVISTA AMBIENTE CONTÁBIL - Universidade Federal do Rio Grande do Norte; Vol. 9 Núm. 2 (2017): Jul./Dez.; 60-79 REVISTA AMBIENTE CONTÁBIL - Universidade Federal do Rio Grande do Norte - ISSN 2176-9036; v. 9 n. 2 (2017): Jul./Dez.; 60-79 2176-9036 10.21680/2176-9036.2017v9n2 por https://periodicos.ufrn.br/ambiente/article/view/9896/8594 Copyright (c) 2017 REVISTA AMBIENTE CONTÁBIL - Universidade Federal do Rio Grande do Norte - ISSN 2176-9036