Whenever I see big volume and am wondering what's going on I throw the chart into eqivolume setting often that gives a good look as to whats happening with the volume. this one stuck out at me going through my list. stockcharts.com/c-sc/sc?s=$DJTENG&p=D&b=5&g=0&id=p12506446540&a=380874722&listNum=1