Order blocks and breaker blocks

Order blocks, and what they assume

An order block, or OB, is the last opposing candle before a decisive move. In an advance, it is the last bearish candle before price leaves. The idea is that it marks the place where a large order started being worked.

The whole practice fits in three gestures: spot that candle, draw the zone it covers, and wait for price to come back to it. It says nothing more, and in particular nothing about what happens if price never comes back, which is more common than the examples suggest.

The underlying assumption is the one behind this whole category, and it is verifiable: a large execution spreads out, so it leaves a trace. The lesson on large orders covers it in full.

What is laid on top is less verifiable: that this particular candle is where the execution began, and that the rest of the order is still waiting there. Nothing on your screen confirms it, and it is worth knowing that before putting money on it.

⚠️ An order block is always seen after the move, never before. The move designates the candle, not the other way round. Everything that follows in this lesson has to be read with that in mind.

Drawing the zone: the two conventions

First convention, the more common one: the zone runs from the high to the low of the candle, wicks included. It gives wide zones, so they get touched often, so entries are frequent and stops are far away.

Second convention: only the body counts, open to close. Zones are narrower, touched less often, and stops are shorter. The reward-to-risk is better when it works, and it works less often.

Both can be defended, and neither is wrong. What is wrong is switching convention from one trade to the next depending on what suits, because from that point on you cannot compare anything to anything.

Pick one, write it down, and keep it for at least fifty trades. The choice matters less than the consistency: two conventions applied seriously beat one applied whenever it is convenient.

A third detail separates the schools: does the candle have to be followed by a break of structure to count? Market structure answers that one, and the answer changes how many zones you end up keeping.

Valid and invalid order blocks

The valid and invalid order block distinction is where most of the arguing happens, and where the least measuring gets done. Three criteria come up everywhere.

The first: the candle must be followed by a break of structure. The second: the zone must not have been revisited already. The third: it must sit on the right side of the higher timeframe bias.

Look closely at those three and count how many can be checked at the moment you would want to enter. The second one, yes. The other two, no: they require knowing what happened afterwards.

That does not invalidate the criteria, it moves the question. They are there to filter a history so it can be measured, not to decide live. Confusing the two uses is what leaves so many people convinced by a method they were never able to apply.

⚠️ A rule that can only be checked afterwards is an analysis rule, not a trading rule. Both are useful, they simply do not serve at the same moment of your day.

Breaker blocks, or the order block that failed

A breaker block is the same object once its level has given way and now acts the other way round. It is to order blocks what the inverse FVG is to fair value gaps: the failed version, reused in the opposite direction.

Trading one therefore means treating a broken order block as an opposing zone, on the assumption that whoever positioned there is looking to get out when price returns. That latent supply is the reason given for the zone pushing back instead of holding.

The reasoning is the same as for any broken level, and there is nothing mystical about it. It is worth exactly what the assumption is worth: that losing positions are still waiting to be closed at that precise place.

The parallel with the inverse fair value gap is exact, and it carries the same weakness: every order block eventually gives way, so every order block sooner or later becomes a breaker block.

The practical consequence is the same too. If you do not record your zones live, your history will only show you the breaker blocks that worked, and you will conclude that they all do.

Mitigation blocks: the third name

A mitigation block is the name given to a zone where a previous position is assumed to be closed out rather than opened. That is the only difference from an order block, and it is one of intent, not of drawing.

On the chart the two look alike to the point of often being the same candle. What separates them is the story told about them, and that story cannot be checked from outside.

Comparing order blocks, mitigation blocks and FVGs comes down to a single question: does the zone mark where the move started, or where it passed through? The first two mark origins. The third marks passage.

They often sit within a few points of each other, which is exactly why they get mixed up. Keeping the question in mind rather than the three definitions is enough to stop confusing them.

In practice, the order block versus mitigation block distinction does not change what you do. It changes the name you give to what you do, and that is worth knowing before paying for a course to learn it.

A waiting zone, never a signal

Order blocks, breaker blocks and fair value gaps all describe the same thing from three angles: a place where a large order left a trace. They are waiting zones, never entry signals.

If you treat them as signals, you will take every return to price. There are far more returns than there are moves that follow, and the difference between the two is paid in commission and spread.

What a zone gives you is a place to look and a clear invalidation level. What it does not give you is a reason to enter now rather than in two hours.

The reason to enter comes from somewhere else: a structure break on a lower timeframe, a visible rejection, a session sequence. The zone says where, something else has to say when.

⚠️ This is the most expensive confusion in the whole vocabulary, and it does not come from the concepts. It comes from the examples never showing the zones where nothing happened.

Practising: thirty order blocks, three columns

Pick one instrument, one timeframe and one drawing convention, and write them down before you start. It takes a minute and it decides whether everything else is valid.

Go back three months and mark thirty order blocks, moving candle by candle and without looking at what comes next. For each one note the date, the direction and the two bounds of the zone.

Then, for each one, fill three columns: did price return into the zone, did it react by leaving in the expected direction, and by how much before coming back to your entry.

The third column is the one almost nobody fills in, and it is the only one that decides whether the method pays you. A high return rate is worth nothing if the reaction does not cover your risk.

Keep the record and compare it with the one you will make on another kind of zone. That is what a trading journal sorted by setup does, and it is the only way to know which of your readings deserves your capital.