September Seasonality. Downside Risks Looming.

Related ETFs: ProShares UltraShort S&P500 (ETF) (SDS), SPDR S&P 500 ETF (SPY), SPDR Dow Jones Industrial Average ETF (DIA), PowerShares QQQ Trust, Series 1 (ETF) (QQQQ) , ProShares UltraShort QQQ (ETF) (QID)