ProShares Ultra Dow30 DDM ProShares Ultra Dow30 seeks daily investment results, before fees and expenses, that correspond to twice (200%) the daily performance of the Dow Jones Industrial Average. Proshares Ultra Dow30 (DDM): ETF Research Reports Notably, the Dow Jones (down 9.6%) has beaten the S&P 500 (down 18.2%) and the Nasdaq (down 29%) this year as rates rose to tame high inflation.