Select Financial Sector SPDRs ( XLF ): -0.33% iShares Russell 2000 Index ( IWM ): -1.59% PowerShares QQQ Trust, Series 1 ( QQQ ): -1.63% Broad Market Indicators Most broad-market exchange-traded funds, including SPY, IWM, and IVV, have tumbled. Actively traded PowerShares QQQ ( QQQ ) was down 1.63%. U.S. stocks reversed and were in negative territory in the session's half, as weak housing data overshadowed earlier upbeat news on better-than-expected CPI numbers.