The Quasimodo Pattern (QM): “Over and Under” and Why It's Still Just a Shape

Quasimodo, also called over and under or QML, is a four-point reversal pattern: in an uptrend, price makes a high, a low, a higher high and then a lower low. The level of the left shoulder is supposed to be where price returns and reacts. It's a variant of head and shoulders, with no evidence that it works better than other patterns.

What it is

The recipe: a high (the left shoulder), a low, a higher high (the head), and a lower low that breaks the structure. Followers wait for price to return to the left-shoulder level (the Quasimodo Level) and expect a reversal there. The bearish version is the mirror image.

The pattern is popular in the price action and Smart Money Concepts communities, where the same sequence is described as a “change of structure” and a “liquidity grab” above the high.

How people use it

the left-shoulder level as a reaction point after a break of structure
combining it with fair value gaps and order blocks
looking for the pattern on many timeframes at once

What the research and evidence say

There's no research on Quasimodo itself. Research on classic patterns, including head and shoulders, has produced ambiguous results that usually weaken once costs are included. The definition depends on which swings you count as highs and lows, so on any chart you can find many “patterns” – and people remember the successful ones.

Weaknesses

freedom in choosing the highs and lows
the pattern is clearest after the fact
no volume information at the break of structure
many candidates across timeframes

What order flow shows

Whether a lower low after a higher high is a real shift in power shows up in the data: whether the break was carried by aggressive selling with growing delta, or price just drifted down on thin volume. On a return to the left-shoulder level, the footprint will show whether buyers are being rejected (sellers absorbing the buying) or price is being accepted and trading is building. The shape alone doesn't tell you that.

Indicators vs order flow

Every indicator and every pattern in this section is built from the same data: a candle's open, high, low, close and sometimes volume. They're derivatives of price, showing the effect rather than the cause. Order flow looks at what price is made of: who was buying and selling aggressively (delta), where limit orders were waiting (the order book) and at which prices the market accepted trade (the volume profile).

On CME futures this data is real and comes from one central market. Spot forex doesn't have it: platforms show tick volume, the number of price changes at a single provider.

To be fair: order flow isn't the Holy Grail. It takes learning, it can be noisy, big players hide some of their orders, and an edge only comes from a process and risk control. But it gives you information that simply isn't on a candlestick chart.

How to use it sensibly

treat Quasimodo as a description of structure, not a signal
check volume and delta at the break of structure
count every pattern, including the failed ones

Glossary: Acceptance and rejection
Glossary: Absorption
Glossary: Delta
Glossary: Footprint
Atlas of biases: Cherry-picking
Atlas of biases: The Texas sharpshooter fallacy
Atlas of biases: The narrative fallacy
Order flow: Absorption on a real market: 51,300
Also under the microscope: Candlestick patterns
Also under the microscope: Head and shoulders
Also under the microscope: Double tops and double bottoms

Frequently asked questions

What is the Quasimodo pattern?

A reversal pattern: a high, a low, a higher high and a lower low. The level of the first high is supposed to be a reaction point when price returns.

How is Quasimodo different from head and shoulders?

It's a close variant. In Quasimodo the right shoulder forms after the low is broken, and what matters is the left-shoulder level, not the neckline.

Does the Quasimodo pattern work?

There's no research confirming it. Like other patterns, it depends on interpretation and looks best on examples after the fact.

Educational content, not investment advice. No signals, entries, stops or position sizes.