Head and Shoulders Pattern

What Is a Head and Shoulders Pattern?

A head and shoulders pattern is a chart formation used in technical analysis to suggest that an uptrend may be losing momentum and could reverse. It consists of three peaks. The middle peak, called the head, is higher than the two outer peaks, which are called the shoulders. A line drawn under the two troughs between the peaks is called the neckline, and it is the level traders watch most closely.

How the Pattern Forms

The pattern usually unfolds in four stages. First, the price rises to a peak, forming the left shoulder, and then falls back. Second, it rises to a higher peak, the head, before falling back toward the neckline. Third, it rises again but fails to reach the height of the head, forming the right shoulder. Finally, the price falls through the neckline. Many analysts treat that move as confirmation, since it suggests sellers have taken control. Some also watch trading volume, which often appears lower during the right shoulder than during the left, as a sign that buying interest is fading.

An Illustrative Example

Suppose a stock climbs to 50, pulls back to 45, climbs to 55, returns to 45, rises to 51, and then drops below 45. In this hypothetical case, 55 is the head, 50 and 51 are the shoulders, and 45 is the neckline. The drop below 45 is the breakout. A common rule of thumb is to measure the distance from the head to the neckline (10 points here) and subtract it from the breakout level, producing a possible downside estimate of 35. This is a rough convention for discussion, not a guaranteed outcome.

Limitations and Considerations

Identifying the pattern is partly subjective, and two people may draw the neckline differently. False signals are common, and prices sometimes recover above the neckline after a apparent breakdown. The pattern describes past price behavior and does not guarantee what will happen next, so many investors use it alongside other indicators and risk-management methods. The inverse version, sometimes called an inverted head and shoulders, forms after a downtrend and is generally read as a potential bullish reversal.