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Nature has no mercy at all. Nature says, "I'm going to snow. If you have on a bikini and no snowshoes, that's tough.
I am going to snow anyway."
Maya Angelou

NYSE (daily) Volume Advance / Decline Line (VADL)

New York Stock Exchange "Volume" Advance Decline Line (Cumulative Daily Volume Breadth) blue, 20 day exponential average red, the green line is a 20 day Donchian channel.
This chart is generated by subtracting the NYSE Composite "Volume" declines from that days "Volume" advances. The blue line plots the cumulative total.