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How to read absorption & stacked imbalances on NinjaTrader 8
Absorption and stacked imbalances are the two footprint reads that most reliably mark where a move is about to turn or accelerate. Here is how to spot them on NinjaTrader 8 and how to combine them with delta.
What absorption looks like
Absorption is when aggressive orders keep hitting one side and price refuses to move. The resting liquidity is eating the aggression. On the footprint you see volume stacking at a high or low while price holds. Sellers keep lifting offers into a high but it won’t break; buyers keep hitting the bid at a low but it holds. The aggressor is spending and getting nothing. That exhaustion is often the seed of a reversal.
Single vs. stacked imbalance
A single imbalance is one price level where buy or sell aggression outguns the other side 2:1 (the 0.682 diagonal ratio). A stacked imbalance is three or more of those in a row, same direction: sustained, one-directional pressure. Stacked imbalances into a level frequently mark where price either breaks through with force or exhausts and snaps back.
Putting it together: the reversal read
The highest-confidence reversal reads line up three things at a level:
- Absorption: one side eating the other, price holding.
- Stacked imbalance failing. Aggression that should have broken the level but didn’t.
- Delta divergence: price makes a new extreme but cumulative delta does not confirm.
When all three appear at a session high or low, you have a textbook capitulation-low or blow-off-high read.
Two common scenarios
Capitulation low: price flushes down, sell aggression spikes, but the bid absorbs it and delta starts diverging up. The sellers are exhausted.
Blow-off high: price spikes up on stacked buy imbalances, the offer absorbs the last push, and delta fails to make a new high with price. The buyers are exhausted.
The trap to avoid
Absorption is only meaningful with real volume behind it. A quiet level holding on light volume is not absorption. It is just nobody trading. Always confirm with total volume and delta before you read exhaustion into it.
For the full toolkit, see the order-flow guide and the honest indicator comparison. Imprint Flow highlights absorption and stacked imbalances automatically, the moment they print.
Imprint Flow surfaces all of this automatically.
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