These products and other leveraged ETF’s are designed for coverage over a single trading day and seek to provide -300% for the FAZ and +300% for the FAS. The underlying firms covered by these products are primarily Berkshire Hathaway, JP Morgan Chase, and Bank of America with other financial services firms also included. These products are easier to use as compared to buying at the money puts on multiple firms when the investment period is very short term. However, the fact that these products reset daily makes them vulnerable to volatility when held for a year as shown in the graph on the video. These features will be generally hold for other leveraged ETF products designed for other sectors.