http://stockcharts.com/h-sc/ui?s=$NYA&p=D&yr=12&mn=0&dy=0&id=p07079644688&listNum=19&a=254949881
2.- Linea AD Normalizada del Nyse, Sumation Index, Valores Alcistas y Bajistas
http://stockcharts.com/h-sc/ui?s=$NYAD&p=D&yr=1&mn=6&dy=0&id=p19072615502&a=247870397