How the pattern unfolds
The setup
Stock A forms a left shoulder, a higher head, and a lower right shoulder, with a neckline near 102.
What triggers it
Price breaks below the 102 neckline, which is the textbook trigger. The breakdown then stalls, and price reclaims the neckline within a couple of sessions.
What it means — and does not
The reclaim of the neckline is the failure footprint. It is close in spirit to a bear trap, but at the level of a whole pattern. It shows that a recognised pattern breaking does not guarantee follow-through.
- Price / index level
- Volume
- Neckline · 102
Left shoulder, head, right shoulder. The neckline (102) break on day 7 fails and price reclaims it.
Show the underlying data
| Day | Price / index level | Volume |
|---|---|---|
| 1 | 100 | 1.1 |
| 2 | 108 | 1.4 |
| 3 | 103 | 1.2 |
| 4 | 112 | 1.6 |
| 5 | 104 | 1.3 |
| 6 | 109 | 1.4 |
| 7 | 101 | 1.9 |
| 8 | 99 | 2 |
| 9 | 103 | 1.8 |
| 10 | 107 | 1.6 |
| 11 | 110 | 1.5 |
What this does not establish
The failure reading is invalidated if price loses the 102 neckline again on a close. The low of the is conventionally treated as the invalidation level. The textbook measured move for the original pattern takes the head-to-neckline distance and projects it below the neckline. That is a convention for sizing, not a price target the pattern promises. A failed neckline break voids it entirely.
Confirmation checklist
4Did the neckline break actually follow through, or was it reclaimed?
Was the reclaim decisive, and did it hold over later sessions?
Is volume consistent with a genuine break or a trap?
Remember: named patterns fail too. This is not a signal.
Common mistakes reading it
2Assuming a neckline break must lead to the measured downside move.
Ignoring a quick reclaim that invalidates the pattern.
A head-and-shoulders neckline breaks, then price reclaims it. What does that show?
- That a named pattern breaking guarantees nothing
- That the pattern was drawn wrongly and the neckline was in the wrong place
- That head-and-shoulders is unreliable and should be ignored altogether
Show the answer
A. That a named pattern breaking guarantees nothing
The neckline is a level like any other, and its break can fail like any other. The name on the pattern adds recognition, not reliability — and one example is not evidence that the shape should be discarded either.
Frequently asked
3What makes a head and shoulders pattern fail?
When the neckline break does not follow through and price reclaims the neckline, the topping pattern is considered failed.
Why does a failure trap shorts?
Those who positioned for the breakdown after the neckline break are left offside when price reclaims the level and rises.
Is the pattern a prediction?
No. Even classic patterns fail. LearnNifty explains the mechanic for learning, not as a forecast.