ProShares Trust Ultra VIX Short Term Futures ETF ( UVXY ): -9.3% SPDR Select Sector Fund - Financial ( XLF ): +0.6% PowerShares QQQ Trust, Series 1 ( QQQ ): +1.1% Barclays Bank PLC iPath S&P 500 VIX Short-Term Futures ETN ( VXX ): +1.1% Broad Market Indicators Broad-market exchange-traded funds, including IWM and IVV were firmer. Actively traded PowerShares QQQ ( QQQ ) was up 1.1%. U.S. stocks were higher at session's half, building on recent gains as dovish comments from members of the Federal Reserve coupled with lower Treasury yields continued to soothe inflation-adverse investors.