Breadth indicator. Takes NYSE/NQ/US up volume and divides it by the total volume to get an advance decline thrust ratio which can be used as a measure of market breadth.
Also has the option to look at the cumulative breadth over the trailing x days.
Also has the option to display as cumulative net up volume which will show lower values than advance decline thrust on days where there were large buy/sell imbalances, but the total day's volume was low.