trade timing signals - using Advance-Decline line tools

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Link to WSJ end of day Market Diary -

https://www.wsj.com/market-data/stocks/marketsdiary

16-months of daily $NYADV in histogram format -

https://stockcharts.com/c-sc/sc?s=%24NYADV&p=D&yr=1&mn=4&dy=0&i=p09228435053&a=760612625&r=1590534237667

WSJ update for Tuesday, July 21, 2020 --

NYSE --- Latest Close --- Previous Close --- Week Ago

Issues traded 3,074 3,069 3,052
Advances 2,290 1,277 1,949
Declines 714 1,693 1,040
Unchanged 70 99 63
New highs 141 113 27
New lows 3 10 12
Adv. volume* 727,035,537 309,193,584 683,319,721
Decl. volume* 165,341,403 465,607,693 218,043,972
Total volume* 898,121,652 786,021,258 908,494,921
Closing Arms (TRIN)† 0.76 0.93 0.69
Block trades* 5,655 5,027 5,425
Adv. volume 3,689,685,722 1,763,604,745 3,266,299,114
Decl. volume 877,259,026 2,175,896,441 1,202,097,100
Total volume 4,598,272,644 3,998,321,377 4,511,947,590