Director trades, profitability and market efficiency: New evidence

We investigate if directors of Australian companies can generate abnormal returns on their reported trades, if these abnormal returns are significant enough to be mimicked by outsiders, and if insider trades have an effect on returns of other investors. We find that insiders take advantage of their...

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Main Authors: Reza Bradrania, Tina Prodromou, P. Joakim Westerholm
Format: Article
Language:English
Published: Elsevier 2023-09-01
Series:Journal of Economic Criminology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S294979142300009X
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author Reza Bradrania
Tina Prodromou
P. Joakim Westerholm
author_facet Reza Bradrania
Tina Prodromou
P. Joakim Westerholm
author_sort Reza Bradrania
collection DOAJ
description We investigate if directors of Australian companies can generate abnormal returns on their reported trades, if these abnormal returns are significant enough to be mimicked by outsiders, and if insider trades have an effect on returns of other investors. We find that insiders take advantage of their private information in stocks of larger corporations, but generally do not in medium and small capitalization firms, indicating that the insiders are attracted to the liquidity and a greater presence of uninformed traders in large stocks. We find that outsiders can make profitable trades net of transaction costs by following insiders’ sale trades in large and medium size firms, otherwise tracking insider trades result in net losses for outsiders. They accumulate on average a net abnormal profit of 4.17 % after a year following insiders sale trades. We propose that market quality can be improved with public access to good quality aggregated data on reported director insider trades.
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spelling doaj.art-31db1ad7063d42e2ac9f66e89bbbb1922024-03-29T05:52:02ZengElsevierJournal of Economic Criminology2949-79142023-09-011100009Director trades, profitability and market efficiency: New evidenceReza Bradrania0Tina Prodromou1P. Joakim Westerholm2University of South Australia, UniSA Business, Australia; Corresponding author.The University of Wollongong, School of Accounting, Economics and Finance, AustraliaThe University of Sydney Business School, AustraliaWe investigate if directors of Australian companies can generate abnormal returns on their reported trades, if these abnormal returns are significant enough to be mimicked by outsiders, and if insider trades have an effect on returns of other investors. We find that insiders take advantage of their private information in stocks of larger corporations, but generally do not in medium and small capitalization firms, indicating that the insiders are attracted to the liquidity and a greater presence of uninformed traders in large stocks. We find that outsiders can make profitable trades net of transaction costs by following insiders’ sale trades in large and medium size firms, otherwise tracking insider trades result in net losses for outsiders. They accumulate on average a net abnormal profit of 4.17 % after a year following insiders sale trades. We propose that market quality can be improved with public access to good quality aggregated data on reported director insider trades.http://www.sciencedirect.com/science/article/pii/S294979142300009XInsider tradingReported insider tradesInformed tradingInformation asymmetryMarket efficiency
spellingShingle Reza Bradrania
Tina Prodromou
P. Joakim Westerholm
Director trades, profitability and market efficiency: New evidence
Journal of Economic Criminology
Insider trading
Reported insider trades
Informed trading
Information asymmetry
Market efficiency
title Director trades, profitability and market efficiency: New evidence
title_full Director trades, profitability and market efficiency: New evidence
title_fullStr Director trades, profitability and market efficiency: New evidence
title_full_unstemmed Director trades, profitability and market efficiency: New evidence
title_short Director trades, profitability and market efficiency: New evidence
title_sort director trades profitability and market efficiency new evidence
topic Insider trading
Reported insider trades
Informed trading
Information asymmetry
Market efficiency
url http://www.sciencedirect.com/science/article/pii/S294979142300009X
work_keys_str_mv AT rezabradrania directortradesprofitabilityandmarketefficiencynewevidence
AT tinaprodromou directortradesprofitabilityandmarketefficiencynewevidence
AT pjoakimwesterholm directortradesprofitabilityandmarketefficiencynewevidence