in the present paper we analyze the characteristics of women that invest in the brazilian capital market, directly or indirectly, through stock funds. our goal is to verify if, in addition to the usual factors like age, years of education, marital status and wealth, there is evidence that social interactions increase the participation of women in capital markets. through a questionnaire sent by e-mail to a group of women investors, we organize a data base with variables that determines the investment decision and analyze theirstatistical significance, we use a probity model and compute the marginal effects. we find evidence that additionally to wealth, years of education and marital status, depression and other indicators of social interaction are statistically significant when woman decides their investments. also, as suggested by several works, risk propensity influences the investment decision.