NYSE cumulative net Advancers minus Decliners line vs. its 10-day EMA for important future vigilance https://stockcharts.com/c-sc/sc?s=%24NYSI&p=D&yr=1&mn=10&dy=0&i=p22864139385&a=306420470&r=1589891229193 ** this A-D line recently printed a new all-time record high ** 20-year chart history - https://stockcharts.com/c-sc/sc?s=%24NYA&p=D&yr=20&mn=0&dy=0&i=p51440519756&a=768603950&r=1591800113661 PermaLink for SC subscribers - https://stockcharts.com/h-sc/ui?s=%24NYA&p=D&yr=20&mn=0&dy=0&id=p51440519756&a=768603950