ProShares Short S&P Mid Cap400 (United States) is an exchange-traded fund (ETF), with assets under management totaling $2.98 million.
Over the past 12 months, ProShares Short S&P Mid Cap400 recorded a return of -14.29%, with its price trading between $14.95 and $18.83 during the same period.
The ETF is traded under the ticker MYY.