ProShares UltraShort MidCap400 (MZZ) is an exchange-traded fund in the Trading Inverse Equity category. It has $4.34M in assets, an expense ratio of 0.95% and a 5.56% dividend yield. The fund invests in financial instruments that ProShare Advisors believes, in combination, should produce daily returns consistent with the Daily Target. The index is a measure of mid-size company U.S. stock market performance. Under normal circumstances, the fund will obtain inverse leveraged exposure to at least 80% of its total assets in components of the index or in instruments with similar economic characteristics. The fund is non-diversified.