Fusões e aquisições no mercado brasileiro: um estudo empírico de evento pós-crise de 2008

Abstract

This work sought to study the reaction of the Brazilian capital market towards announcements of Mergers & Acquisitions (M&A) processes, investigating its impact in the price of stocks negotiated on São Paulo Stock Exchange, Commodities and Futures Exchange (BM&FBOVESPA). With regard to the methodology applied in this work, both descriptive and quantitative researches can be observed. These were carried out by using secondary data collection and statistical analysis. The aim of the survey was to check if the announcements of M&A operations produced impact on the prices of stocks publicly negotiated on BM&FBOVESPA after the global financial crisis in 2008. An event study was carried out in order to verify the existence of statistically significant abnormal returns around the dates of the announcements of the M&A processes, based on the assumption that a link between the stock market and companies decision to join an M&A process exists. The results obtained with the segmentation of the sample between acquiring and acquired companies indicate that announcements of M&A operations did not impact on the prices of publicly traded shares on the BM&FBOVESPA, during the research period, showing evidence of the informational efficiency of the Brazilian capital market as being semi-strong. When making up the segmentation between companies that had a change in control, both the acquired companies as the acquiring firms had positive abnormal returns, a fact that repeated itself in the segmentation carried out with regard to the payment method