The objective of this study is to analyze the pricing efficiency of three of the most liquid brazilian Exchange-Traded Funds (BOVA11, SMAL11 and PIBB11) and determine if they follow closely the indexes they try to replicate, comparing with the international literature regarding the foreign ETFs performance. Firstly, this study verifies which strategy is adopted by each fund, as well as the quality of this replication by evaluating the tracking error observed in these funds. Then it is analyzed if there is any deviation between the trading price and the net asset value (NAV) of the respective ETF, that is, if the security is being traded, on average, with a premium or discount. Finally, it is evaluated the persistence of those premiums and discounts found, that is, how much time it takes until the trading price and the NAV go back to equilibrium. The results showed that both BOVA11 and PIBB11 adopt a full replication strategy, while SMAL11 presents an optimization strategy. The tracking error found is in line with those observed in European ETFs and the three funds are traded, on average, with a discount. Finally, both BOVA11 and PIBB11 take seven days to go back to equilibrium, while SMAL11 only takes two days, an unexpected result as this is the least liquid fund of the three that are part of this study. Therefore, the arbitrage tools are not being used efficiently.