Abnormal returns in privatization public offerings: the case of Portuguese firms

This paper provides evidence on abnormal returns of Portuguese privatization public offerings for the period from 1989 to 2001. This study explores the abnormal performance of a comprehensive sample of Portuguese privatization transactions and investigates the determinants of the observed price beha...

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Main Authors: Carla Vieira, Ana Paula Serra
Format: Article
Language:English
Published: Coimbra University Press 2006-06-01
Series:Notas Económicas
Online Access:https://impactum-journals.uc.pt/notaseconomicas/article/view/3645
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author Carla Vieira
Ana Paula Serra
author_facet Carla Vieira
Ana Paula Serra
author_sort Carla Vieira
collection DOAJ
description This paper provides evidence on abnormal returns of Portuguese privatization public offerings for the period from 1989 to 2001. This study explores the abnormal performance of a comprehensive sample of Portuguese privatization transactions and investigates the determinants of the observed price behavior. We find some evidence of the underpricing phenomenon for privatized offerings but initial returns are low and barely significant. The results show further that privatization IPOs underperform private sector IPOs. In the long run, we observe negative abnormal returns. While in early event months, privatization public offerings yield more negative returns than private sector offerings, this effect is reversed in longer horizon periods. Initial underpricing is thus partially reversed and investors seem to require higher returns in partial privatizations.
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spelling doaj.art-f1aa39b9cd574eeab807bf180fb27b412022-12-22T02:43:14ZengCoimbra University PressNotas Económicas0872-47332183-203X2006-06-012310.14195/2183-203X_23_1Abnormal returns in privatization public offerings: the case of Portuguese firmsCarla Vieira0Ana Paula SerraUniversidade de CoimbraThis paper provides evidence on abnormal returns of Portuguese privatization public offerings for the period from 1989 to 2001. This study explores the abnormal performance of a comprehensive sample of Portuguese privatization transactions and investigates the determinants of the observed price behavior. We find some evidence of the underpricing phenomenon for privatized offerings but initial returns are low and barely significant. The results show further that privatization IPOs underperform private sector IPOs. In the long run, we observe negative abnormal returns. While in early event months, privatization public offerings yield more negative returns than private sector offerings, this effect is reversed in longer horizon periods. Initial underpricing is thus partially reversed and investors seem to require higher returns in partial privatizations.https://impactum-journals.uc.pt/notaseconomicas/article/view/3645
spellingShingle Carla Vieira
Ana Paula Serra
Abnormal returns in privatization public offerings: the case of Portuguese firms
Notas Económicas
title Abnormal returns in privatization public offerings: the case of Portuguese firms
title_full Abnormal returns in privatization public offerings: the case of Portuguese firms
title_fullStr Abnormal returns in privatization public offerings: the case of Portuguese firms
title_full_unstemmed Abnormal returns in privatization public offerings: the case of Portuguese firms
title_short Abnormal returns in privatization public offerings: the case of Portuguese firms
title_sort abnormal returns in privatization public offerings the case of portuguese firms
url https://impactum-journals.uc.pt/notaseconomicas/article/view/3645
work_keys_str_mv AT carlavieira abnormalreturnsinprivatizationpublicofferingsthecaseofportuguesefirms
AT anapaulaserra abnormalreturnsinprivatizationpublicofferingsthecaseofportuguesefirms