Head and Shoulders Pattern: Neckline, Confirmation and Measured Target

Three peaks and a neckline

A head and shoulders is a shape made of three peaks. The middle peak, the head, is the highest, and the left and right shoulders on either side are lower than the head. The line joining the two troughs (lows) between the peaks is called the neckline. When it appears after an extended uptrend, it is described as a reversal pattern where the trend turns at a top; a similar shape that shows up without a prior advance is usually not read the same way.

• Left shoulder: a high during the advance and the pullback that follows
• Head: a new high above the left shoulder, then a drop to near the neckline
• Right shoulder: a high that fails to get past the head and turns down
• Neckline: the line joining the two troughs. It may slope rather than run flat

Completion comes with a close below the neckline

Three peaks on their own do not yet make a head and shoulders. In the textbook definition, the pattern is completed (confirmed) when price closes below the neckline. A candle whose wick dips under the neckline but closes back above it is usually not counted as confirmation. In terms of trend structure, the right shoulder is the first 'lower high', and if the neckline is close to flat, breaking it is the same as closing below the previous low. In other words, it is a name given to the moment the uptrend's structure breaks, as described in the article on identifying trends. Depending on which timeframe's close you judge by, the confirmation point can differ even on the same chart.

Measured target: the distance from head to neckline

The calculation most often quoted for the head and shoulders is the measured target. You measure the vertical distance from the top of the head to the neckline directly below it, then project the same distance downward from the point where price broke the neckline. In the chart above, the head's high is 145 and the neckline is 118, so the distance is 27 and the measured target is 91. If the neckline slopes, you measure the distance to the neckline value directly below the head and subtract it from the neckline value at the point where price actually broke. Some people project wide patterns as a percentage rather than a price amount, so the target is not even uniquely defined. This number is a reference that turns the pattern's size into a price; it does not mean price will get there or stop there.

The classic explanation of volume

The classic explanation treats this as the typical picture: volume is heavy on the left shoulder or the head, drops noticeably on the right shoulder, and picks up again when the neckline breaks. Light volume on the right shoulder is read as a sign that there was not enough buying to make a new high. The lower panel (volume) of the first chart mimics that typical picture. But this describes the textbook picture, not a condition of the pattern, and volume on real charts is often far less tidy. Also keep in mind that coin volume is counted separately on each exchange, so one exchange's chart does not represent the whole market (see the article on reading volume).

Inverse head and shoulders: the same shape flipped at a bottom

Turn the shape upside down and you get the inverse head and shoulders. After a downtrend, three lows form, the middle low (the head) is the lowest, and the pattern completes when price closes above the neckline joining the two peaks. The measured target works the same way: the distance from the bottom of the head to the neckline is added upward from the breakout point. In the classic explanation, rising volume on the neckline breakout matters more for this bottom version than for the top version. The reasoning attached is that price can fall simply because nobody is buying, but to rise it needs new buyers to step in.

The neckline retest

After price breaks through the neckline, it is often pictured coming back near the neckline and then moving away. As on the right side of the chart above, the neckline that was resistance before the breakout is described as acting as support this time, an example of the role reversal covered in the article on drawing support and resistance. Waiting for the retest before judging adds one more piece of evidence, but you miss the moves that leave without a retest. Conversely, if the returning price crosses back over the neckline and closes on the original side, you have to consider that the earlier breakout may have been a false breakout. There is no guarantee a retest will come. The Support & Resistance Finder puts a 'Flip' label on price zones where both swing highs and swing lows formed, which helps when looking for levels whose role has changed, like a neckline.

The mistake of naming it before it is complete

The most common mistake is calling it a head and shoulders while the right shoulder is still forming. At that point the shape cannot be told apart from an uptrend that has had two pullbacks. As in the chart below, if price turns up again above the neckline and climbs past the head, the same candles simply become part of an uptrend. If you collect only completed examples from past charts, the pattern seems to work well, because candidates that never completed never got a name and so are not remembered. Judging real charts with the right side hidden, as in the Chart Prediction Quiz, lets you feel this difference for yourself.

What this article does not say

Figures for the head and shoulders' success rate or how often it reaches its target circulate widely, but the results change a great deal depending on how shoulder height differences, neckline slope and duration were judged, and they cannot be verified here, so they are not repeated. What this course measured directly on daily candles of 10 coins on Binance (from each coin's listing date to September 2026) covers only candlestick patterns and indicator signals whose definitions can be written as ratios of a few candles; those results are gathered in the article on the limits of chart analysis. With a head and shoulders, human judgment comes in from the very first step of deciding which peaks count as shoulders, so measuring it the same way would require fixing the detection rules first. This article only explains how to read the shape; it does not tell you what to do when you see the pattern.