NDX / SPX comparison chart <img src=http://stockcharts.com/c-sc/sc?s=$NDX&p=D&yr=1&mn=0&dy=0&i=p55022800820&r=4682> QQQQ / SPY <img src=http://stockcharts.com/c-sc/sc?s=QQQQ&p=D&yr=1&mn=0&dy=0&i=p28725296872&r=7016>