What Is an Order Block?
Michael Whitman
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Trading since 2017, full-time since 2020
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Published 2026-09-05
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Updated
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Reviewed
An order block is the last opposing candle before a move that breaks market structure. It marks the price area where large orders entered and pushed hard enough to change direction. Either the move after that candle broke structure, or the zone is not an order block at all.
Covered on this page: TradingView and LuxAlgo.
An order block is the last opposing candle before a move that breaks market structure: the last down candle before a rally that takes out a swing high, or the last up candle before a drop that takes out a swing low. Traders mark that candle’s body as a zone where price may react when it returns.
Two words in that definition do a lot of work, so here they are in plain English.
Market structure is the pattern of highs and lows on a chart. In an uptrend each high sits above the last one. In a downtrend each low sits below the last.
Breaking structure means price does something that pattern says it should not — a downtrend takes out a previous high, or an uptrend takes out a previous low. That break is the market changing its mind, and it separates an order block from an ordinary big candle. The break of structure and change of character pages cover the two kinds of break in detail.
How it forms
A large participant cannot fill a big position in one click without moving price against themselves. So they accumulate quietly inside a range, then push.
On the chart, the quiet part looks like small candles going the wrong way. Then one decisive move in the other direction. The last candle going the wrong way, immediately before that move, is the order block.
Three conditions have to hold:
- It is the last opposing candle. Last down candle before an up move; last up candle before a down move. Not the biggest candle — the last one.
- The move that follows breaks structure. It has to take out a prior swing high or low.
- The move leaves an imbalance. Price travels fast enough that candles barely overlap.
Miss any of the three and you are drawing boxes on noise.
Bullish and bearish order blocks
Almost every explanation shows the bullish case, which leaves half the picture out.
A bullish order block is the last down candle before a move that breaks structure upward. Buyers absorbed the selling, then pushed. A bearish order block is the last up candle before a move that breaks structure downward. Same logic, mirrored. Sellers absorbed the buying, then pushed.
Mark only bullish blocks and you will see half the setups on the chart.
Which part of the candle is the zone
This is where most people get it wrong, and it costs them on every trade.
The zone is the candle’s body — open to close. The wick is not part of the zone. It is where the stop goes.
Mark the wick as the zone and your entry sits too low, your stop sits too wide, and the trade needs a bigger move just to break even.
How to mark one
The order matters, and most people do it backwards.
Step one: find the break of structure first. Not the candle — the break. If nothing broke, there is no order block to find and you can stop looking.
Step two: walk backwards to the last opposing candle. Now mark the zone.
Doing it the other way round — spotting a nice candle and hoping a break follows — is how people end up with fifteen boxes and no idea which one matters.
Why price comes back at all
The third condition is the one people skip, and it is the mechanism behind the whole idea.
When price moves fast, candles stop overlapping. Orders that wanted to fill in that range never got the chance. That unfilled area is an imbalance, or fair value gap, and it is what draws price back later. The fast move itself is what ICT traders call displacement.
No imbalance, no reason to return. A zone without one is a level you are hoping works.
Order block, breaker block and mitigation block
An order block that fails can become a breaker. When a full body closes through the zone, the block is dead as a block. If price later comes back to that area from the other side and reacts, the same candle gets a new name, the breaker block, and order block vs breaker block sets the two side by side.
A mitigation block is named for the return, not the origin. It marks an area price came back to and reacted from before carrying on, so it often lands on the same candles as an order block. The mitigation block page explains why it can only be drawn after the reaction.
A supply or demand zone is the wider cousin. It marks the whole quiet area a move left from rather than one candle, so the same move gives a thin order block inside a broader supply and demand zone. The width you choose changes the entry, the stop and how often price reaches the level at all.
A worked example
Take the sequence in order. Price ranges quietly for ten candles. The final candle of that range closes down. The next four run hard and take out the prior swing high.
That final down candle is the order block, and its body is the zone.
Several candles later price drifts back into it, wicks in, and turns. That is the setup behaving as described — and it is a constructed example, chosen to show the pattern cleanly. Real charts are messier than this.
Where the numbers go
Entry on the touch. Stop below the wick — not below the body. Invalidation is a close below the wick, which is different from price briefly trading there.
The number that makes a setup tradeable is not the entry. It is the invalidation, because it is the only part you can act on when you are wrong.
The original data
Across our study of 24,971 trading videos, 393 have order block in the title. The median one gets 2,669 views, and 75% never pass 50,000 views. Median length is 13.7 minutes.
Here is the part worth knowing. The corpus carries description text for 75 of those 393 videos, and across those 75, only 3 mention invalidation, failure, or what a bad order block looks like.
That is a small window — 75 videos, not 393 — so treat it as a strong hint rather than a census. But it points the same way everything else does. Drawing an order block is easy and every source covers it. Knowing when to abandon one decides whether the idea makes or loses money.
The condition that defines the block is almost never in the title. Only 10 of the 393 order-block titles also name market structure, a break of structure (BOS) or a change of character (CHoCH), and those 10 have a median of 59 views. The rule that separates a block from a big candle is the part the headlines leave out.
So is the direction. Only 3 of the 393 titles say bullish or bearish at all, and only one of those names the bearish case.
What the audience rewards is the application. 82 of the 393 titles say strategy, at a median of 21,983 views, 8.2 times the median for every order-block title. 98 file the idea under smart money concepts or SMC, and 47 under ICT, at a median of 3,354. Every count uses the same title match as the figures above, one row per video.
How this connects
The candle before a move that broke structure - which makes market structure the prerequisite, since without a break there is nothing to look back from.
It is identified retrospectively by definition. The block cannot be known until the move that qualifies it has happened.
A fair value gap usually sits adjacent, created by the same impulsive move, and the two are often marked as one area.
Liquidity is the mechanism claimed underneath - the idea that unfilled orders remain and act when price returns.
It is one piece of a larger vocabulary. The block sits inside smart money concepts and the ICT method, which add timing and liquidity rules around it.
And a chart marked with every candidate block will have one near whatever price does next, which is coverage rather than prediction.
When it fails
A failed order block looks identical to a good one at the moment you enter. The differences show up afterwards, and there are four.
The move never broke structure
You marked a big candle followed by a strong push — but the push stopped short of the prior swing.
No break, no order block. You have drawn a support level inside ordinary market structure and called it something more impressive.
Price closes through instead of wicking in
A valid zone gets rejected. Price pokes in and leaves.
When a full body closes on the far side, the orders that created the zone are gone. The level now works against you.
It has already been used
A zone is worth the most the first time price returns to it.
By the third touch most of the resting orders are filled and the level is hollow. Counting touches costs nothing and removes a large share of losing entries.
You marked it after the move happened
This one is not about the chart at all.
Scrolling back to find the candle that worked is trivial, and it feels like analysis. The test: would you have marked the same zone using only the candles to the left of the break?
Cover the right-hand side and mark zones on what is left. The difference in how many you draw is immediate and uncomfortable.
The zone is an area, not a line
On a lower timeframe the same zone is not a clean level. Price moves in and out of it repeatedly.
That is normal, and it is why the invalidation is a close beyond the zone rather than a touch. Treat it as an area where liquidity is likely to sit, not a price that has to hold to the cent.
Related
Order blocks only make sense once you can read market structure — the break of structure is what validates the block in the first place.
The imbalance the move leaves behind is a fair value gap. The two often mark the same area from different angles.
And the reason price returns at all is liquidity: resting orders that were never filled.
When you are ready to mark one on a live chart, how to identify an order block takes it from entry to invalidation.
I keep both the internal and the swing blocks turned on. The internals are shorter-term support and resistance, and the swings are the ones I build a trade around, but I want to see both, because an internal block sitting inside a swing block is a very different thing from one floating on its own.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money. Some links on this page earn a commission if you buy through them. It costs you nothing and it does not decide what appears here or in what order — how these pages are made is set out in our methodology.