The short answer
The Quasimodo pattern is the SMC reading of a reversal that shape-shifts into the same silhouette as a head and shoulders, but trades on a completely different trigger and has no published win-rate study of its own, so the only real numbers belong to its close relative, the head and shoulders. SMC traders also call it QM, QML, or the Over and Under pattern, and they read it as a structure story rather than a shape story.
A quick name disambiguation, because it trips people up. The pattern borrows its name from the Victor Hugo character, but on this page Quasimodo means a chart pattern in trading, not the hunchback of Notre Dame.
I will be honest about the evidence up front, because the rest of the SERP is not. I could not find a peer-reviewed or statistically valid win-rate study for the Quasimodo pattern itself, and neither could the bulk of the trading web, so every confident percentage you read about it is unsourced.
What I can do is anchor the pattern to the closest empirically studied relative, the head and shoulders, and to the documented order-flow mechanism that makes its neckline break run. If the wider method is new, the Smart Money Concepts hub lays out the framework this sits inside.
What the Quasimodo pattern means in SMC
SMC traders use the term Quasimodo for a five-point reversal structure that forms when an uptrend makes one final high and then breaks the low that supported it. The five points are a left shoulder high, a higher head, a lower right shoulder, a neckline at the left shoulder low, and the break of structure below it.
The pattern matters to SMC traders because that final break is read as a liquidity event, the moment the buy stops above the head are cleared and the sell stops below the neckline fire. The whole shape is really a map of where those orders sit.
I read the Quasimodo as a story about who is trapped. The buyers who chased the head are trapped when price breaks the neckline, and their stops fuel the move down, which is why the pattern is treated as a bearish reversal setup.
The structure: five points, a neckline, and a break
The Quasimodo builds in a fixed sequence, and the order of the points is the whole pattern. Get the order wrong and what you have is not a Quasimodo, it is an ordinary pullback.
The structure begins with a left shoulder high, followed by a higher high that SMC traders call the head, followed by a lower high that forms the right shoulder. The neckline is the low between the left shoulder and the head, and the pattern completes only when price breaks below that neckline.
I wait for the break before I call it anything. A head and a right shoulder without the break is just a lower high inside an uptrend, and calling that a Quasimodo is the most common way traders invent the pattern where it does not exist.
| Point | What it is | What it shows |
|---|---|---|
| Left shoulder | An early swing high | The first high before the head |
| Head | A higher high after the left shoulder | The final push that traps late buyers |
| Right shoulder | A lower high after the head | The first sign the uptrend is fading |
| Neckline | The low between the left shoulder and the head | The support that must break |
| Break of structure | A close below the neckline | The reversal confirmation |
Bullish and bearish Quasimodo patterns
The pattern comes in bullish and bearish forms, and they are mirror images. The bearish Quasimodo tops out an uptrend with a head and a lower right shoulder and then breaks the neckline down, while the bullish Quasimodo bottoms out a downtrend and breaks up.
In the bullish version the head is the lowest low, the right shoulder is a higher low, and the neckline is the high between the left shoulder low and the head. A break above that neckline confirms the reversal up.
I treat the two as the same setup flipped, because the logic is identical in both directions. The bearish pattern traps buyers above, the bullish pattern traps sellers below, and the neckline break releases the trapped orders in both cases.
The QML line and the QML zone
SMC traders abbreviate the pattern to QML, and they use the term QML line for the neckline itself and QML zone for the area around it where price is expected to react. The line is the level, and the zone is the band of order flow around it.
I mark the QML zone rather than a single line, because the orders do not sit at one exact price. They cluster across a small range, which is why a clean break often needs a close a few points beyond the line to confirm.
One refinement the SMC community uses is the Failed to Return, abbreviated FTR, which is the first pullback that fails to reclaim the QML zone after the break. A failed return confirms the zone has flipped from support to resistance, and SMC traders use it as a second-chance entry.
Quasimodo versus head and shoulders: the real difference
This is the disambiguation the whole SERP fumbles, so I will be precise. The Quasimodo and the head and shoulders share a silhouette of three peaks, but they are read through different lenses and traded on different triggers.
The classic head and shoulders pattern is identified by shape and confirmed by volume, and the textbook entry is on the break of the neckline. The Quasimodo is identified by structure and confirmed by the break of structure, and the SMC entry comes earlier, on the retest of the left shoulder low before the neckline gives way.
The difference is the trigger. A head and shoulders trader waits for the neckline to break and then enters, while a Quasimodo trader looks for the right shoulder to reject the left shoulder low and enters before the break, which is the trade that pays more when it works and loses more when it does not.
| Feature | Head and shoulders | Quasimodo |
|---|---|---|
| Identified by | Shape, three peaks plus volume | Structure, highs and lows plus BOS |
| Confirmed by | Volume and the neckline break | The break of structure |
| Entry trigger | On the neckline break | On the left shoulder low retest |
| Statistical backing | Bulkowski data exists | No published study of its own |
| Lens | Classic technical analysis | Smart money concepts |
The real success rate: what the data actually says
Here is the honesty panel the other pages skip. I searched for a peer-reviewed or statistically valid win-rate study of the Quasimodo pattern and found none, and the pattern does not appear with its own entry in Thomas Bulkowski's Encyclopedia of Chart Patterns, which is the closest thing chart patterns have to a statistical reference.
The closest empirically studied relative is the head and shoulders, and Bulkowski's data on that family is the only honest proxy. His sample of head and shoulders bottoms found that 71 percent met their price target with an average rise of 45 percent, while his head and shoulders tops met target only 51 percent of the time with an average decline of 16 percent.
The broader academic case that reversal patterns carry any predictive power comes from Andrew Lo, Harry Mamaysky, and Jiang Wang, whose 2000 study in the Journal of Finance found that several patterns appear with non-trivial frequency and show measurable, though mixed, predictive value once costs are included. I lean on that for the general claim and resist the urge to attach a specific Quasimodo percentage that nobody has measured.
I treat every confident Quasimodo win-rate figure online as unsourced, because I have not seen one linked to a study. The honest position is that the pattern is unmeasured on its own, and the only numbers we have belong to its close relative.
Why the neckline break runs: the order-flow mechanism
The reason the break below the neckline tends to run rather than drift is not magic. It is a mechanical effect of how stop-loss orders cluster, and it is the part of the pattern with real primary research behind it.
Carol Osler's research at the Federal Reserve Bank of New York found that stop-loss and take-profit orders cluster at round numbers and at prior swing points, and that once those stops trigger they cascade into the sharp, self-reinforcing move traders recognise as a break running. The neckline of a Quasimodo is exactly such a level, a prior swing low loaded with the buy stops of traders who bought the head.
I read the neckline break as that cascade. Price pushes through the level, the buy stops fire as sell orders, and the cascade carries price away from the entry of anyone who hesitated, which is why the break is the confirmation and the retest is the entry.
How to identify a valid Quasimodo pattern
Identification is a checklist, not a feeling, and I run it the same way every time. The five checks below take a vague three-peak shape and turn it into either a confirmed pattern or nothing.
- Confirm the higher-timeframe trend is the one you expect to reverse.
- Mark the left shoulder high, the higher head, and the lower right shoulder in that exact order.
- Draw the neckline at the low between the left shoulder and the head.
- Wait for price to reject the left shoulder low and form the right shoulder.
- Confirm the break of structure with a close below the neckline.
I never call a Quasimodo before the fifth check. The right shoulder forming is a warning, but only the break of structure confirms the pattern, and entering on the warning is how traders get caught by a continuation that never reverses.
How to trade the Quasimodo pattern
Once the pattern confirms, the trade has a clear shape, and I keep the plan mechanical so emotion does not edit it mid-trade. The entry, the stop, and the target are all decided before I risk a cent.
The entry comes on the retest of the QML zone after the break, ideally confirmed by a lower-timeframe shift in my favour. Entering on the break itself is the classic head and shoulders play, while entering on the retest is the Quasimodo play, and the retest usually offers the better ratio.
The stop sits just beyond the head, because a return through the head invalidates the reversal. The target is the next major pool of sell-side liquidity below, which is where the move is said to be heading, and I size the position so the distance to the stop is one unit of risk.
The reason I wait for the retest is the ratio. Entering on the retest after the break usually offers a tighter stop than entering on the break itself, because the retest puts the entry closer to the invalidation point beyond the head, which lifts the reward for every unit of risk.
For confirmation, SMC traders watch for a market structure shift on the entry timeframe, and the difference between that shift and a plain change of character is covered on the break of structure and CHoCH page. I use the shift as my trigger and the QML retest as my level.
The Quasimodo continuation pattern
Not every Quasimodo reverses the trend, and the continuation version forms when the pattern appears mid-trend and the break merely extends the move. The shape is similar, but the break of structure resumes the existing direction rather than flipping it.
I treat the continuation Quasimodo as a lower-probability version and rarely trade it, because a continuation read against the higher-timeframe trend is the same mistake as a reversal with no confirmation. The shape alone is never the signal, the context is.
The distinction matters because the same five points can signal either a reversal or a continuation depending on where they form, and the higher-timeframe trend is the only thing that tells you which one you are looking at.
Confluence that actually adds an edge
A confirmed Quasimodo on its own is a reasonable setup, but I want a second layer of evidence before I risk money on it. The best Quasimodos line up with at least one of these confluences.
A sweep of buy-side liquidity just before the head forms is the strongest, because it shows the move exhausted itself taking stops, which is the Osler mechanism again. An order block or a fair value gap at the QML zone gives the retest a level to bounce off, and higher-timeframe alignment means the reversal points the same way as the daily bias.
I am honest about the indicator layer. RSI divergence and Fibonacci retracements are popular confirmations on the SERP, but their added value is thinner than the structure itself, and I treat them as decoration rather than as the basis for the trade.
Common mistakes
The losses on this pattern come from the same short list of errors, and most of them are impatience rather than ignorance. These four are the ones I see most often.
Calling a Quasimodo before the break is the first, and it is the pattern-recognition bias that Bulkowski warns about across all chart patterns. Three peaks that look right are not a Quasimodo until the structure breaks.
Entering on the right shoulder with no confirmation is the second. The right shoulder is the warning, not the signal, and buying or selling it before the break is how you become the fuel the move runs on.
Ignoring the higher timeframe is the third. A bearish Quasimodo inside a bullish daily trend is fighting the current, and the higher-timeframe trend wins those fights more often than not.
Treating the pattern as a guarantee is the fourth. Even the closely related head and shoulders meets its target only about half the time in Bulkowski's top sample, so a Quasimodo without a stop and a risk plan is just a hope with a chart.
