EEV is effectively a one-day bet against the MSCI Emerging Markets index. The fund offers daily -200% exposure to the index, which covers roughly 85% of the market cap in the emerging-markets universe. Note that it's also covering South Korea and Taiwan, which some investors may not consider emerging markets. As with all daily leveraged and inverse products, EEV is designed as a trading vehicle, not as part of a longer-term asset allocation. In fact, anyone holding the fund for more than a day must adjust their exposure daily in order to avoid the effects of path dependency and positional decay. As a tactical short-term trading vehicle, trading costs weigh more impact than the expense ratio.