MVV provides a geared bet (2x) on the S&P mid-cap 400 Index, a market-cap weighted index that measures mid-size company US stock market performance and factors in criteria such as liquidity, price, market capitalization and financial viability. As a levered product, MVV presents different risks than other types of funds and is thus not a buy-and-hold investment. It should not be expected to provide index leverage returns greater than a one-day period.