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Double Top & Double Bottom

Reversal pattern · ~4 min read

Double Top and Double Bottom are among the simplest and most reliable reversal patterns. They form when price fails twice at a notable level.

Double Top (bearish)

Price reaches a high, pulls back and fails at roughly the same level on the second attempt – an "M". The low in between forms the neckline. A drop below it confirms the Double Top.

Double Bottom (bullish)

The mirror image – a "W": two lows at a similar level where sellers stall. A break above the neckline (the interim high) confirms the turn to the upside.

Price target

The pattern height (distance from the two extremes to the neckline) is projected from the breakout in the direction of the move.

What to watch

• The two highs/lows should be close together (similar level).
• Only the neckline break confirms it – before that it is just a candidate.
• A clear prior trend increases reliability.

Why the second peak decides everything

A double top is more than "two highs at the same level". What matters is how the second high comes about: the less volume carries it and the longer price struggles there, the more credible the pattern. If price reaches the old high with momentum and heavy turnover, it is usually just a pause before a breakout to the upside. The mirror image applies to the double bottom: the second low should form slowly, with selling pressure visibly fading.

As a rule of thumb the two extremes count as "level" when they are no more than roughly 2 to 3 percent apart – considerably less in forex. There should also be a recognisable pullback between them; two spikes inside three candles are not a double top, they are noise.

How the pattern is traded

1. Entry: only on a close below the neckline (the low between the two highs); for a double bottom, above the high between the two lows.
2. Stop: above the second high, or below the second low respectively.
3. Target: the height of the pattern (high to neckline), projected from the breakout.
4. Invalid: as soon as a new high prints above the two old ones.

What our data says – and why caution is warranted

Double tops and bottoms are the patterns with the best reputation and one of the weakest measured results. Traded by textbook rules on real price data across 219 symbols:

That reward-to-risk of 0.91 is the real finding: with a measured-move target the possible gain is smaller than the risk. The high hit rate looks good but barely survives costs – three quarters winners with smaller wins and bigger losses nets out close to zero. Anyone trading the pattern needs a larger target than the plain measured move, or a tighter stop. The full ranking of every pattern we measured is on the chart pattern backtest page.

Telling it apart

If there is a higher high between the two peaks, you are looking at a head and shoulders – a different pattern with a different target. Add a third high at the same level and it becomes a triple top, considered more reliable but much rarer. And if the highs drift apart while the lows fall, it is a broadening wedge, which we scan separately.

Common mistakes

• Entering before the neckline breaks because the second high looks "certain".
• Ignoring the preceding trend – without an uptrend there is no double top, only a sideways range.
• Taking the measured-move target at face value although the stop sits further away than the target.