A head and shoulders is a three-peak reversal pattern where the middle peak is highest and the outer two are roughly level, completed when price closes below the neckline joining the intervening lows. A double top is two peaks at a similar level completed on a break of the low between them. Both describe the same underlying event: a trend failing to make a new high and then breaking its prior low.
A head and shoulders is three peaks with the middle one highest, completed when price closes below the neckline joining the intervening lows. A double top is two peaks at a similar level, completed on a break of the trough between them.
Both are famous. Both are also, underneath the naming, exactly the same event described in Part 7: a trend fails to make a higher high, then breaks its prior swing low. Recognising that keeps the patterns useful rather than mystical.
Head and shoulders, structurally
Walk through what forms it in an uptrend.
- Left shoulder — a normal higher high, then a pullback. Trend intact.
- Head — another higher high. Still intact. Then a pullback reaching roughly the previous level.
- Right shoulder — a rally that fails to exceed the head. This is the lower high. The uptrend is now in question.
- Neckline break — price falls through the level joining the two pullback lows. The structure is broken.
Step 3 is the warning; step 4 is the confirmation. The pattern is not a mystical shape — it is a sequence in which the higher-high requirement fails and then the higher-low requirement fails.
The inverse head and shoulders is the same in a downtrend, with three troughs and the middle one lowest.
Double tops and bottoms
Simpler and more common. Price reaches a level, retreats, returns to the same level, and fails again.
The information is straightforward: buyers were twice unable to push beyond this price. The second failure carries more weight than the first because it demonstrates the first was not an accident.
Completion again requires the break — of the trough between the peaks. Two peaks at a level with no break is just resistance holding twice, which is normal range behaviour, not a reversal.
The neckline is the pattern
The most common error with all of these is trading the shape before the break.
A prospective head and shoulders is visible long before it completes, and traders routinely short the right shoulder in anticipation. The problem: a great many prospective patterns never complete. Price rallies through where the right shoulder “should” have topped and the uptrend continues, having never been broken.
Until the neckline goes, an uptrend making a lower high is an uptrend that made a lower high. That is a caution flag, not a reversal.
Key takeaway The pattern is the confirmation, not the shape. Anticipating completion converts a defined-risk setup into a guess about a formation that may never form — and gives up the one thing these patterns offer, which is an unambiguous invalidation level.
Trading them
Entry. On the neckline break, or on the retest of the neckline from the other side. The retest is the flip again — same trade-off as breakouts: the retest gives up some move for a tighter stop and better ratio.
Stop. Above the right shoulder for a head and shoulders; above the second peak for a double top. That is where the pattern has failed.
Target. Measured from the pattern’s height — which is Part 15.
Size. These are large patterns, so stops are wide and positions correspondingly small. Check the number in the calculator rather than assuming your usual size applies.
Where they are worth most
On higher timeframes, and at levels that already mattered.
A daily double top at a level that capped price six months ago is two independent pieces of evidence agreeing. A 5-minute double top in mid-range is a squiggle with a name. Timeframe and location decide the weight, exactly as they did for every tool in this series.
Next: Triangles, wedges and rectangles — the patterns of compression rather than reversal.
- A head and shoulders has three peaks, the middle one highest, with a neckline joining the two lows between them.
- The pattern is not complete until price closes beyond the neckline.
- A double top is two peaks at a similar price; a double bottom is the inverse.
- Both patterns are formalisations of a break of market structure.