Order Block: What It Is and What to Expect From It
An order block is the last candle before a strong impulse, marked as the zone where a large participant entered. The concept came from the ICT approach and became popular; with popularity came inflated expectations.
How the zone is marked
Take an impulsive move and mark the last opposite candle before it: the last bearish candle before a strong rise, the last bullish one before a fall. The range of that candle is treated as the zone of interest. The logic runs: a large participant was building a position there, and some of their orders may remain unfilled.
What is behind the idea and what cannot be verified
The mechanics of building a large position are real: size cannot be bought at once without moving price against yourself, so accumulation is spread over time and leaves a trace. But the claim that one specific candle on your chart is the trace of one specific participant cannot be verified. Forex has no centralised volume, and therefore no way to confirm that anyone was accumulating there.
Entry, stop and what actually works
Entry when price returns into the zone, stop beyond its far boundary. In practice this is the same as entering from a level marked by an impulse — and it works exactly to the extent that the level itself works. The useful part of the concept is the discipline of marking: it forces you to mark areas from which strong moves began rather than drawing lines wherever convenient.
Honest limits
A zone stops working after several touches: unfilled interest, if it was ever there, is gradually consumed. Marking order blocks in hindsight is easy and therefore meaningless — on history every impulse has its zone. And most importantly, the concept provides no statistical edge by itself; its value lies in structuring the entry.
We deliberately publish no measurement for this figure. Its marking cannot be formalised unambiguously, and any detection algorithm would reflect our arbitrary thresholds rather than a property of the market. Where the definition is strict — as with the inside bar or engulfing — we test the pattern on data and publish the result. Here it is more honest to say there is nothing to test.
This material is educational and is not individual investment advice. Trading forex carries the risk of losing capital.
Frequently asked questions
How do I mark an order block?
Find an impulsive move and mark the last opposite candle before it: bearish before a rise, bullish before a fall. The range of that candle is the zone.
Can I verify that a large participant was really in the zone?
Not on forex. The market is over the counter with no centralised volume, so confirming large accumulation is impossible — it is an interpretation, not a measurable fact.
How many times does one zone work?
Usually one or two touches. Each return fills part of the pending interest, and later approaches pass through without a reaction.
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