ZoneTraderPro Order Flow Absorption
The ZoneTraderPro Order Flow Indicator suite identifies Absorption on a chart. Absorption occurs when large traders use limit orders to execute a trade and absorb available supply.
As you can see on the chart on the right, every single time a red or green absorption box was drawn, the market moved in that direction.
This is not meant to be a trading signal by itself. If there is a pricing pattern or a Volume POC signal being given, then you likely have the justification for a trade.