cumulative A-D lines in histogram format for $SPX $OEX $NDX $MID $SML and $INDU, with the 15,2 Bollinger Band and the 50-day SMA - http://stockcharts.com/c-sc/sc?s=%21ADLINESPX&p=D&yr=0&mn=4&dy=0&i=p23825448009&a=705248095&r=1595376862604