For

The indicator, for the platform you trade on.

One engine. Two platforms. The same decomposed flow — stacks, pulls, and aggressive executions — as one normalized σ signal.

Bookmap

The order book, before the price.

The Pulling & Stacking Indicator on Bookmap: every stack, pull, and aggressive execution decomposed into one normalized σ signal on the heatmap.

NinjaTrader 8

Same numbers. Native add-on.

The Pulling & Stacking Indicator on NinjaTrader 8: the same decomposed flow numbers as Bookmap, installed as an NT8 add-on.

Order-flow traders

One signal. Two components.

For traders who read the book: Stack Signal decomposes passive and aggressive flow into one σ-normalized signal, comparable across symbols.