ALGOMARK Concepts
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Order Block

Also: OB · Bullish Order Block · Bearish Order Block

Definition

An order block is the last opposing candle before a displacement move that takes out a swing point and shifts price in the other direction. A bullish order block is the last down-close candle before an impulsive move higher; a bearish order block is the last up-close candle before an impulsive move lower. It represents the price range where the algorithm accumulated or distributed before delivery.

Key characteristics

How it forms

Before a significant directional move, the algorithm books orders against the coming direction — one last pullback that traps retail traders on the wrong side. That final opposing candle is where institutional positioning occurred. When price returns to that zone, the algorithm defends it and delivers price back in the direction of the original displacement.

How to use

Enter on touch of the OB high (bearish) or OB low (bullish), or wait for price to trade to the [[Mean Threshold]]. Stop beyond the opposite extreme of the OB plus a small buffer. Target the next opposing PD array or liquidity pool. Pair with kill-zone timing for precision.

Common mistakes

Source quotes

Not just thinking, give me an order block to buy. Let me find a fair value gap that's going to be the next move.
It starts back down into an order block, a fair value gap on a five minute chart. Then we have a shift and a market structure...

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