BZQ is a -2x play on the MSCI Brazil 25/50 Indexa market-cap-weighted index of Brazilian large- and midcap stocks, which covers the vast majority of the market capitalization in Brazil. That makes it a bet against the financial sector in particular, which accounts for a large portion of the Brazilian equity market. The fund rebalances its leverage on daily basis, and is directly affected by issues of path dependency and compounding. As a result, its long-term returns are difficult to predict when compared with its underlying index. While its holding costs are reasonable for a levered product, the real concern for an intraday tool like this is trading costs. BZQ is good but not great for traders, despite the popularity of the space: daily volume is deep, but spreads still tend to be significant.