iPath S&P 500 VIX Short Term Futures ETN ( VXX) -2.9% The fear-tracking VXX ETN managed to push higher at the end of last week as European fears witnessed a comeback. These gains have been quickly wiped out, however, as investors return from the extended weekend in a buying mood. VXX is currently testing its previous 2012 low. It will be interesting to see if this level holds up in the days ahead. All prices as of 2:14 PM EST Written by Don Dion in Williamstown, Mass.