The weakness seen from GAZ and the United States Natural Gas Fund ( UNG) has done little to quell the strength seen from the equity-backed First Trust ISE Revere Natural Gas Index Fund ( FCG). The fund is up nearly 5% in early afternoon trading. iShares Barclays 20+ Year Treasury Bond Fund ( TLT) -0.5% As market tensions ease and investors regain confidence, defensive asset classes are falling out of favor. The long term U.S. Treasury-tracking TLT is sliding to a second day of losses, approaching its 50-day moving average. The PowerShares DB U.S. Dollar Index Bullish Fund ( UUP) is slipping as well. All prices as of 2:14 PM EST Written by Don Dion in Williamstown, Mass.