Stocks Advance/Decline Histogram

Stocks Advance/Decline Histogram indicator, which I call ADH is my own implementation that plots an histogram of the difference between the number of advancing and declining stocks on a daily basis (or higher time frame) for the NASDAQ and NYSE.

How to use it?
Green: More NYSE stocks are advancing than declining.
Red: More NYSE stocks are declining than advancing.

Light Green: More NASDAQ stocks are advancing than declining.
Light Red: More NASDAQ stocks are declining than advancing.

Note: Advance/Decline data is based on daily or higher time frames.