S&P 500 Advance-Decline line now resides at a chart location requiring high vigilance for its future direction - * see the top chart element for the S&P500 A-D line, which has been pointing down for only the most recent days in mid-June 2016 * take future note whether the prior all-time high achieved in April 2016 by the S&P500 A-D line remains downside violated http://stockcharts.com/c-sc/sc?s=%21NETADSPX&p=D&st=2014-02-28&en=today&i=p33272138055&a=382768469&r=1466001380855