Inverse Head & Shoulders

The Inverse Head and Shoulders (also called the Head and Shoulders Bottom) is a bullish reversal pattern that forms after a sustained downtrend. It's the mirror image of the regular Head and Shoulders topping pattern. The formation consists of three troughs: a left shoulder, a deeper head, and a right shoulder that doesn't reach the depth of the head. The pattern is confirmed when price breaks above the neckline — a resistance line connecting the two rally peaks between the troughs.

Pattern Anatomy

The Inverse Head and Shoulders consists of five key components that form sequentially during a downtrend:

• Left Shoulder — Price declines to a trough, then rallies back up. This is the first sign that selling pressure may be weakening, though it's not yet distinguishable from a normal counter-trend bounce.
• Head — Price falls again, this time to a deeper trough than the left shoulder, then rallies back up to approximately the same level as the previous rally peak. This deeper low followed by a recovery to the same resistance area creates the neckline.
• Right Shoulder — Price declines a third time but fails to reach the depth of the head, forming a shallower trough. This higher low is the critical signal that the bears are losing momentum.
• Neckline — A resistance line drawn connecting the two rally peaks (the highs between the left shoulder/head and the head/right shoulder). The neckline can be horizontal, slope upward, or slope downward — an upward-sloping neckline is generally considered more bullish.
• Breakout — The pattern is confirmed when price closes above the neckline. Until this happens, the pattern is only a potential Inverse Head and Shoulders — it could still fail and resume the downtrend.

How to Trade the Inverse Head & Shoulders

The classic trading approach for this pattern involves several steps:

• Entry — Enter a long position when price breaks above the neckline on a closing basis. Some aggressive traders enter as the right shoulder forms (before the neckline break), but this carries higher risk of the pattern failing.
• Price target (measured move) — Measure the vertical distance from the head's low to the neckline, then project that same distance upward from the neckline breakout point. For example, if the head is at $40 and the neckline is at $50, the measured move target is $60.
• Volume confirmation — Ideally, volume increases on the breakout above the neckline. Rising volume on the breakout suggests strong buying conviction and increases the probability of the pattern succeeding.
• Stop loss — Place a stop below the right shoulder's low. If the right shoulder is violated after a neckline breakout, the pattern has likely failed.
• Throwback — After breaking the neckline, price commonly pulls back ("throws back") to retest the neckline from above. This is normal and healthy — the old resistance becomes new support. Many traders use the throwback as a second entry opportunity if they missed the initial breakout.

Comparison with the Regular Head & Shoulders

While the Inverse Head and Shoulders is a mirror image of the regular (bearish) Head and Shoulders, the two patterns don't behave in perfectly symmetric ways:

• Bottoming patterns take longer to form — Market bottoms tend to be more drawn out than tops. The old Wall Street saying "markets take the stairs up and the elevator down" reflects this asymmetry. Inverse Head and Shoulders patterns often develop over weeks or months, while their topping counterparts may form more quickly.
• Slightly different success rates — Thomas Bulkowski's research notes that the Inverse Head and Shoulders has a somewhat different statistical profile than the regular version. The bullish reversal (inverse) pattern meets its measured move target approximately 74% of the time, making it one of the more reliable chart patterns.
• Volume behavior differs — In regular Head and Shoulders tops, volume typically decreases progressively. In the inverse version, volume behavior is less consistent — it may or may not decline across the three troughs. What matters most is a volume surge on the neckline breakout.

Expert References

• Edwards & Magee, Technical Analysis of Stock Trends (1948, multiple editions) — One of the earliest and most thorough treatments of the Head and Shoulders family of patterns. They emphasize that the inverse version is "among the most reliable of the reversal formations" and stress the importance of volume confirmation on the breakout.
• Thomas Bulkowski, Encyclopedia of Chart Patterns (2005) — Provides extensive statistical analysis. Bulkowski found that the Inverse Head and Shoulders has an approximately 74% success rate as a bullish reversal, with an average rise of around 38% from the breakout point. He also notes that patterns with upward- sloping necklines tend to perform better.
• John Murphy, Technical Analysis of the Financial Markets (1999) — Covers the Inverse Head and Shoulders as one of the major reversal patterns, noting its importance as a base-building formation after extended declines.

Controversy & Limitations

• Volume confirmation is less consistent: Unlike the regular Head and Shoulders (where declining volume across the peaks is a well-known feature), the inverse version does not always show a clear volume pattern during formation. This makes volume-based confirmation less reliable for identifying the pattern before the breakout occurs.
• Subjective pattern recognition: Identifying the Inverse Head and Shoulders requires judgment calls. How deep does the head need to be relative to the shoulders? How symmetric must the shoulders be? The neckline slope is also debated — some analysts insist on a roughly horizontal neckline, while others accept steeply sloped necklines. These ambiguities mean two analysts can look at the same chart and disagree on whether the pattern is present.
• Hindsight bias: The pattern is easiest to see after it has already completed. In real time, distinguishing an emerging Inverse Head and Shoulders from random price fluctuations during a downtrend is considerably more difficult.