Among the best-performing non-leveraged ETFs of Friday, the iPath Series B S&P 500 VIX Short Term Futures ETN (NYSEArca: VXX) increased 6.8% and the ProShares VIX Short-Term Futures ETF (NYSEArca: VIXY) advanced 6.8%. The CBOE Volatility Index and VIX-related exchange traded funds jumped on Friday as poor consumer sentiment weighed on the outlook for the pace of the economic recovery. While investors saw the first sign of inflation easing and an unexpected rise in retail sales, the slightly higher initial jobless claims (a proxy for layoffs) weighed on sentiment, the Wall Street Journal reports.