A head and shoulders is three peaks: a high, a higher high, then a lower high. Connect the two lows between them and you have the neckline.
That shape is where most teaching stops, and it is why most people trade the pattern badly. Three bumps are not a reversal. The reversal is the neckline breaking, and until it does you are looking at a chart with some shapes on it.
What the shape actually records
Read it as structure rather than as a picture:
Left shoulder — an advance, then a normal pullback. Trend healthy.
Head — a higher high. Still healthy. But the pullback from it goes *deeper*, to around the previous low.
Right shoulder — the next advance fails to exceed the head. A lower high.
Step three is the information. In structural terms, the uptrend has just made a lower high — the first half of a trend reversal. The neckline break makes the lower low that completes it.
So the pattern is not a special formation. It is a break of structure with a memorable name. That reframing is useful, because it tells you what actually matters: the sequence, not the symmetry.
Where it fails
Trading before the break. Shorting the right shoulder because "it looks like a head and shoulders" is anticipating a pattern that has not completed. Right shoulders fail into new highs regularly.
Cosmetic symmetry. The shoulders do not need to be equal, and the neckline does not need to be horizontal. Traders reject valid setups for being untidy and accept invalid ones for being pretty.
Ignoring what it sits inside. A head and shoulders inside a strong daily uptrend is a pullback shape. The same pattern at the end of an extended run, at a daily resistance level, is a genuine reversal candidate. The higher timeframe decides which one you have.
Trading the completion
Element
Rule
Entry
Close beyond the neckline, or the retest of it
Stop
Above the right shoulder
Target
Neckline minus the head-to-neckline distance
Skip if
Reward under 2× risk, or the higher timeframe disagrees
The retest is the better entry when it comes. A break with immediate follow-through gives you a worse price and a wider stop. A break, pullback and rejection gives you a tight stop above the neckline and confirmation that the flip held.
It does not always come. Missing a trade costs nothing but the trade.
The measured move, honestly
The conventional target is the head-to-neckline distance projected down from the break.
Treat it as a reasonable first objective, not a promise. It is a rule of thumb with no mechanism behind it — nothing forces price to travel a distance equal to a previous swing. Manage the trade by how price behaves, and take profit at structural levels on the way.
Worked example
EURUSD daily. Uptrend for two months.
`` Left shoulder 1.1720 Pullback low 1.1640 Head 1.1810 Pullback low 1.1632 Right shoulder 1.1735 ``
Neckline: roughly 1.1636 (the two lows, not perfectly level — that is normal).
Right shoulder at 1.1735 is a lower high against the head. Structure is weakening.
Do not act yet. Nothing has broken.
Price falls to 1.1618 and closes there — below the neckline. Then it pulls back to 1.1641 and prints a rejection candle with an upper wick.
Entry 1.1633 on the retest close. Stop 1.1748, above the right shoulder. Risk 115 pips.
Measured target: head 1.1810 minus neckline 1.1636 = 174 pips, projected from 1.1636 → 1.1462. Reward 171 pips. Ratio about 1:1.5.
Below the 2:1 threshold. A disciplined trader either skips this or takes it at reduced size with a nearer structural target — the prior swing low at 1.1520, giving 1:1 and still not qualifying.
This is the outcome most pattern courses never show: a textbook, correctly identified head and shoulders that is not worth trading, because the stop required is too wide relative to the move available.
The pattern was real. The trade was not.
What to take away
A head and shoulders is a lower high followed by a lower low — a break of structure with a name.
The neckline break completes it. Before that, nothing has happened.
Symmetry is cosmetic. The sequence is what matters.
The retest is the better entry when it appears.
A valid pattern with a poor reward ratio is still a bad trade.
Next: the simplest reversal shapes, and the same discipline applied.