The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange

This paper investigates the informational content of abnormal volume trading of shares listed at Tehran Stock Exchange (TSE) using an event study methodology. The results for a sample of 48 Iranian firms during 1385-1388 show that there are abnormal returns before and after the abnormal trading volu...

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Main Authors: Adbol Reza Talaneh, Mohammad Mahmoodi, Kaveh Sharafy
Format: Article
Language:fas
Published: University of Tehran 2013-08-01
Series:تحقیقات مالی
Subjects:
Online Access:https://jfr.ut.ac.ir/article_35429_42a1a3f3468c3c0547448890450f2449.pdf
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author Adbol Reza Talaneh
Mohammad Mahmoodi
Kaveh Sharafy
author_facet Adbol Reza Talaneh
Mohammad Mahmoodi
Kaveh Sharafy
author_sort Adbol Reza Talaneh
collection DOAJ
description This paper investigates the informational content of abnormal volume trading of shares listed at Tehran Stock Exchange (TSE) using an event study methodology. The results for a sample of 48 Iranian firms during 1385-1388 show that there are abnormal returns before and after the abnormal trading volume dates. Regression analysis also shows that there is a significant relationship between trading volume data and returns on days after the event date, meaning that future returns are predictable using trading volume data. These results provide directly evidence on informational content of abnormal trading volume and indirectly on inefficiency of TSE. Distributing trading volume data across the exchange can put traders with no insider information in a better informational position.
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spelling doaj.art-f615c4a058294045838be355a545fffd2022-12-22T03:05:52ZfasUniversity of Tehranتحقیقات مالی1024-81532423-53772013-08-0115111610.22059/jfr.2013.3542935429The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock ExchangeAdbol Reza Talaneh0Mohammad Mahmoodi1Kaveh Sharafy2Ph.D. Accounting, Islamic Azad University, Firuzkouh, IranPh.D. Accounting, Islamic Azad University, Firuzkouh, IranM.Sc. Management, Islamic Azad University, Firuzkouh, IranThis paper investigates the informational content of abnormal volume trading of shares listed at Tehran Stock Exchange (TSE) using an event study methodology. The results for a sample of 48 Iranian firms during 1385-1388 show that there are abnormal returns before and after the abnormal trading volume dates. Regression analysis also shows that there is a significant relationship between trading volume data and returns on days after the event date, meaning that future returns are predictable using trading volume data. These results provide directly evidence on informational content of abnormal trading volume and indirectly on inefficiency of TSE. Distributing trading volume data across the exchange can put traders with no insider information in a better informational position.https://jfr.ut.ac.ir/article_35429_42a1a3f3468c3c0547448890450f2449.pdfinsider informationabnormal volume tradingabnormal returnevent study
spellingShingle Adbol Reza Talaneh
Mohammad Mahmoodi
Kaveh Sharafy
The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
تحقیقات مالی
insider information
abnormal volume trading
abnormal return
event study
title The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
title_full The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
title_fullStr The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
title_full_unstemmed The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
title_short The Informational Content of Abnormal Trading Volume of Shares Listed at Tehran Stock Exchange
title_sort informational content of abnormal trading volume of shares listed at tehran stock exchange
topic insider information
abnormal volume trading
abnormal return
event study
url https://jfr.ut.ac.ir/article_35429_42a1a3f3468c3c0547448890450f2449.pdf
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