Head and Shoulders Pattern
Key Takeaways
- Head and shoulders is a bearish reversal pattern consisting of three peaks with the middle peak highest
- The neckline connects the lows between the peaks and serves as the key breakout level
- The measured move target equals the height from the head to the neckline, projected downward
- Volume typically decreases across the three peaks, confirming weakening buying interest
Definition
The head and shoulders pattern is one of the most recognized and reliable reversal patterns in technical analysis. It consists of three successive peaks: a left shoulder, a higher middle peak (the head), and a right shoulder that is roughly equal in height to the left shoulder. The pattern signals that an uptrend is losing momentum and a reversal to the downside is likely.
The key structural element is the neckline, a support line drawn by connecting the lows formed between the left shoulder and head, and between the head and right shoulder. The pattern is not confirmed until the price breaks below the neckline. Once broken, the neckline often becomes resistance on any retest.
An inverse head and shoulders (or head and shoulders bottom) is the mirror image, forming at market bottoms with three troughs where the middle trough is the deepest. It is a bullish reversal pattern, signaling that a downtrend may be ending. The trading principles are the same but inverted, with a breakout above the neckline confirming the pattern.
How It Works
The pattern forms in five phases: (1) the left shoulder rally and pullback to support, (2) a higher rally forming the head with a pullback to support, (3) a lower rally forming the right shoulder, (4) the neckline break, and (5) the potential retest of the neckline from below.
The measured move target is calculated by subtracting the neckline price from the head price and projecting that distance downward from the neckline break point. For example, if the head is at $100, the neckline is at $90, the measured move target is $90 - $10 = $80. This gives a minimum expected decline.
Volume plays a crucial role in confirming the pattern. Ideally, volume is highest on the left shoulder rally, lower on the head rally, and lowest on the right shoulder rally. This declining volume across the three peaks shows that buying enthusiasm is fading. The neckline break should occur on above-average volume for confirmation. Low-volume neckline breaks are more likely to be false breakdowns.
Example
Tesla (TSLA) rallies to $290 (left shoulder) on heavy volume, pulls back to $265, then rallies to $310 (head) on moderate volume, pulls back to $268, and rallies to $288 (right shoulder) on light volume. The neckline connects the $265 and $268 lows at approximately $266. When TSLA breaks below $266 on above-average volume, a trader enters a short position. The measured move target is $310 (head) minus $266 (neckline) = $44, projected from $266 = $222. The trader covers at $225, capturing most of the $41 per share decline.
Why It Matters
The head and shoulders pattern is considered one of the most reliable reversal patterns because it reflects a clear shift in market psychology. The left shoulder and head represent bullish enthusiasm, but the right shoulder's failure to reach the head's height shows that buyers are losing conviction. The neckline break confirms that sellers have taken control.
The measured move target gives traders a specific price objective, which is important for calculating risk-reward ratios before entering a trade. Studies of the pattern's reliability suggest it reaches its measured target approximately 55-65% of the time, making it one of the more dependable chart patterns when properly identified and confirmed by volume.
Advantages
- One of the most recognizable and well-documented reversal patterns
- Provides specific entry, stop-loss, and target levels for trade planning
- Volume analysis adds confirmation to the pattern's validity
- Works on all time frames from intraday to monthly charts
Limitations
- Patterns can take weeks or months to form, requiring patience
- False breakdowns through the neckline can trap short sellers
- The pattern is not confirmed until the neckline breaks, meaning some of the move is missed
- Subjective in identification; not all three-peak formations are valid head and shoulders patterns
Frequently Asked Questions
Related Terms
Browse more definitions in the financial terms glossary.