Looks like some RSI(5) values this low over the last few years have been momentum lows that were followed within a week or two by a price low, while some nailed the price low for an IT move. <A HREF="http://stockcharts.com/h-sc/ui?s=$NDX&p=D&st=2004-01-01&id=p45545902327&a=67895598&listNum=34" target="_blank">http://stockcharts.com/h-sc/ui?s=$NDX&p=D&st=2004-01-01&id=p45545902327&a=67895598&a...</A>