1 year - http://stockcharts.com/c-sc/sc?s=SPY&p=D&yr=1&mn=0&dy=0&i=t64175173377&r=8589 http://stockcharts.com/c-sc/sc?s=VXX&p=D&yr=1&mn=0&dy=0&i=t61584550351&r=3581