ABSTRACT This study sought to analyze information asymmetry in the Brazilian stock market and its relation with the returns required from portfolios through the metrics volume-synchronized probability of informed trading. To do this. the study used actual data from the transactions of 142 stocks on the Brazilian Securities. Commodities and Futures Exchange (BM&FBOVESPA). https://www.roneverhart.com/10-oz-Black-Thermal-Plastic-Molcajete-Bowl-5-1-4-x-5-1-4-x-2-1-2-1-count-box/