The Behavioral Finance gained importance in recent years in the national and international economic scenario. One of the key concepts is loss aversion, which argues that investors have greater fear of suffering a loss than feeling pleasure with an equal gain, and it also demonstrates risk aversion in gain situations and risk propensity in loss scenarios. This paper focuses on risk aversion in the field of gains in relation to the factors age, gender and investment experience. Therefore, it was applied a quantitative research based on the study of Holt and Laury (2002) with 61 individuals of Rio de Janeiro, in order to try to understand these investors behavior on their decision making.