Preferência por assimetria e sentimento do investidor: um estudo do impacto nos retornos do primeiro dia de ipo no mercado acionário brasileiro.

• Ano de defesa: 2016
• Autor(a) principal: Costa, Yngrid Cabral Lima da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraíba; Brasil; Administração; Programa de Pós-Graduação em Administração; UFPB
• Palavras-chave em Português: Sentimento do Investidor; Investor sentiment; Assimetria Idiossincrática; Oferta Pública Inicial de Ações; Idiossincratic Assymmetry; Initial Public Offerings; CIENCIAS SOCIAIS APLICADAS::ADMINISTRACAO
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/tede/8282

Among the approaches of the area of behavioral finance, the impact of irrational and speculative behavior of investors has drawn attention of researchers in the face of evidence that indicate a possible influence of idiosyncratic asymmetry into the context of investors' perception in their decision-making and, consequently, prices and returns on assets. Sometimes it is not difficult to find situations where optimistic or pessimistic expectations impacting in some way in the financial market. The idiosyncratic asymmetry can be understood as investors' preference for positive asymmetry, contrary to the assumptions of the theory of expected utility. Investor sentiment can be defined quite broadly, however, the underlying issue that sentiment mainly covers how such investors interpret and react to daily events so they can build their beliefs. The initial public offerings (IPO) are those in which the listed companies provide first sale of its stocks. Thus, understanding the way in which the financial market operates can be of great value to assist investors in their perception and their active trading strategy to take into account the impact factors of stock prices and, if it's worth before speculation of possible delay or not your decision making based on the evaluation of the assumed returns and risks when investing in assets in its first day of trading on the stock exchange. Face of this perspective, the objective of this research is to investigate the relationship between the irrationality of investors and returns of the first day of Brazilian companies that made IPO from 2004 to 2014. The sample comprised 106 companies among the 152 who underwent IPO in this interval of eleven years. The research was based on the model developed by Aissia (2014), who also found the influence of idiosyncratic asymmetry and investor sentiment, but in the financial market of France. The method used for the estimation of the proposed model was through regression analysis by ordinary least squares (OLS). The data revealed that one of the research hypothesis was confirmed because it was found that the idiosyncratic asymmetry positively affected returns of the first day of IPO's inherent in the companies in the sample. Furthermore, this study can enrich the discussion of aspects inherent irrationality of investors in decision-making from a peculiarity has not investigated within the Brazilian market, making relationship with the preference for asymmetry itself in order to open new horizons for future studies proposed.