Double Top
Key Takeaways
- A double top forms when price reaches a resistance level twice and fails to break through
- The pattern is confirmed when price breaks below the support level between the two peaks
- The measured move target equals the height of the pattern projected downward from the breakpoint
- Volume typically decreases on the second peak, confirming diminishing buying interest
Definition
A double top is a bearish reversal chart pattern that forms after an extended uptrend. It consists of two consecutive peaks at approximately the same price level, separated by a moderate trough. The pattern signals that the uptrend has encountered strong resistance that buyers cannot overcome, and a reversal to the downside is likely.
The trough between the two peaks creates a support level known as the neckline or confirmation line. The double top is not a confirmed pattern until the price breaks below this support level. Until that break occurs, the price might simply be consolidating before continuing higher.
Double tops appear across all time frames and asset classes. They are one of the most common reversal patterns and, along with double bottoms and head and shoulders, form the foundation of classical chart pattern analysis. The pattern reflects a failed attempt to push prices to new highs, indicating that sellers have gained the upper hand.
How It Works
The pattern forms in four stages: (1) the first peak, where price hits resistance and pulls back; (2) the trough, where buyers step in at support; (3) the second peak, where price rallies back to approximately the same resistance level but fails to break through; and (4) the breakdown, where price falls below the trough support level.
The measured move target is calculated by subtracting the trough level from the peak level and projecting that distance downward from the breakdown point. For instance, if the peaks are at $50 and the trough is at $44, the pattern height is $6. The target would be $44 - $6 = $38.
Volume analysis strengthens the signal. Ideally, volume on the second peak is lower than on the first peak, showing fading buying enthusiasm. The breakdown below the trough should occur on increased volume for confirmation. A failed pattern (price breaking above the second peak) invalidates the double top and may signal continuation higher.
Example
Apple (AAPL) rallies to $198 in early January, pulls back to $185, and then rallies again to $197 in late January. The two peaks at $198 and $197 form a double top with the neckline at $185. Volume on the second peak is 20% lower than on the first, confirming weakening buying interest. When AAPL breaks below $185 on heavy volume, a trader sells short with a stop-loss at $200 (above the peaks). The measured move target is $198 - $185 = $13, projected downward from $185 = $172. AAPL declines to $174 over the next three weeks, and the trader covers near the target.
Why It Matters
Double tops represent a clear shift in the supply-demand balance. The first peak establishes a price level where selling pressure overwhelms buying pressure. When buyers cannot push price above that level on the second attempt, it confirms that the resistance is real and sellers are in control. This failure is a powerful psychological signal to the market.
For investors holding long positions, a confirmed double top is a warning to consider reducing exposure or tightening stop-losses. For short-term traders, it provides a structured trade with defined entry (neckline break), stop-loss (above peaks), and target (measured move), creating a calculable risk-reward framework.
Advantages
- Easy to identify visually with two clear peaks at similar price levels
- Provides defined entry, stop-loss, and target levels for trade planning
- One of the most common reversal patterns, appearing frequently across all markets
- Volume confirmation adds reliability to the pattern
Limitations
- Not confirmed until the neckline breaks, by which time some downside has already occurred
- False breakdowns can trap short sellers if price quickly recovers above the neckline
- The two peaks do not need to be at exactly the same price, introducing subjectivity
- In strong uptrends, double tops can fail and become continuation patterns
Frequently Asked Questions
Related Terms
Browse more definitions in the financial terms glossary.