Análises de modelos de apreçamento para índices setoriais da BM&FBovespa

Abstract

This work studies the variables that determine or influence significantly the value of portfolios in the Brazilian capital market. For that we used to price the portfolios the following models: CAPM, which measures the return of the asset from the return of the riskless asset and the market premium multiplied by a factor beta, being named market factor. The Model Three factors, comprising the market factor, firm size (defined by market value) and the ratio of net equity value and market value of the Company, and the Model of the Four Factors, which adds to the Three Factor Model the strategy now is saying that the purchase (sale) of shares that had a good (bad) performance in the last twelve months, tend to have positive abnormal returns (negative) during the following twelve months. The theoretical basis of the studies by Jegadeesh and Titman (1993) and in Brazil by Mussa (2007), which incorporated the strategy at the Model of Three Factors of Fame and French (1993), differing from the analysis of other studies on the subject from the use of portfolios formed by Sector Indexes portfolios available today on the BOVESPA..