Double top

A double top is a bearish reversal pattern consisting of two peaks at approximately the same price level separated by a dip (the valley). The pattern reveals that price has tested a resistance level twice and failed both times to break above it, showing waning buying pressure. The first peak exhausts buyers; the price retraces. Buyers try again, pushing price to roughly the same level as the first peak, but selling intensity halts the rally. When price then dips below the valley’s low, the pattern is complete, and a sustained downtrend often follows. The double top is simpler and more common than the head and shoulders but is considered less reliable.

How double top forms

An uptrend reaches a peak (first top) where sellers step in, causing price to retrace. Buyers return and push price back toward the prior peak (second top). However, selling pressure at the same resistance level prevents price from breaking above. The two peaks at approximately the same level reveal that resistance is firm and buying power is insufficient to overcome it.

The valley between the peaks acts as support. When price eventually breaks below the valley low, it signals that buyers have finally surrendered, and sellers are in control.

The valley

The valley is the low point between the two peaks. It acts as support during the pattern and becomes a key level: breaking below it confirms the reversal. The depth of the valley affects the pattern’s significance—a deep valley (large retracement) shows greater conviction in the pattern than a shallow one.

Volume behavior

During the first peak, volume is typically robust as buyers aggressively push higher. During the second peak, volume often declines, revealing less buying conviction. On the breakdown below the valley, volume should surge, confirming sellers are stepping in.

Measuring the target

The measuring objective is calculated as the valley low minus the distance from the valley low to the peak. For example, if both peaks are at $100 and the valley is at $90, the measuring objective is $90 - $10 = $80. This is not guaranteed but is a common target.

Variations

Unequal peaks: The two peaks are at slightly different levels. The pattern is still valid if they are close (within 1-3% of each other).

Flat valley: The valley is not a sharp dip but a relatively flat zone, sometimes called a “double-dip.”

Time between peaks: Peaks separated by only days are less significant than peaks separated by weeks or months.

False breakdowns

Price can dip below the valley low on low volume, then bounce back above it, only to eventually reach the target. Traders who place tight stops below the valley risk being whipsawed. Waiting for volume and confirmation on the breakdown reduces this risk.

Trading a double top

Confirmation: Wait for price to close clearly below the valley low on increasing volume.

Entry: Short on the breakdown, or wait for a pullback to the valley for confirmation.

Stop-loss: Place above the peaks.

Profit target: Use the measuring objective.

Double top at major resistance

A double top at a significant resistance level (a round number, a prior swing high, a moving average) is more meaningful than one at a random level. The higher the stakes of the resistance level, the more significant the failure to break above it.

Comparison to other reversals

• Double top: Two peaks; simpler; moderate reliability.
• Head and shoulders: Three peaks; more complex; higher reliability.
• Evening star: Three candles; reversal; different timeframe.

Real-world example

A stock rallies to $110, pulls back to $100, rallies again to $109 (close to first peak), pulls back to $100 (valley), then closes below $100 on heavy volume. The measuring objective is $100 - $10 = $90.

Academic perspective

Academic research on double tops finds mixed results. Some studies suggest modest predictive power; others find the pattern occurs at frequencies consistent with random price movement.

See also