GUSH, USOU: Big ETF Inflows By: ETF Channel October 04, 2019 at 10:48 AM EDT Comparing units outstanding versus one week ago at the coverage universe of ETFs at ETF Channel, the biggest inflow was seen in the Daily S&P Oil & Gas Exp. & Prod. Read More >> Related Stocks: S&P Oil & Gas Expl Bull 2X ETF Direxion United States 3X Oil Fund