RETL, as a levered product, is a short-term tactical instrument and not a buy-and-hold ETF. Like many levered funds, it promises 3x exposure only for one day. Over longer periods, returns can vary significantly from 3x exposure to its underlying index. Investors should note that RETL's underlying index may have a different take on the retail space than other indexes. The fund tends to overweight apparel, auto-parts & service and specialty retailers, while underweighting department stores. RETLs exposure also extends to some unexpected sectors like oil & gas refining and marketing. As a short-term product, trading costs are relatively more important for the fund, than with buy-and-hold ETFs. Note: On December 1, 2016, RETL changed its underlying index from Russell 1000 Retail Index to S&P Retail Select Industry Index.