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.