Double Tops, Adam & Adam

Core idea

An Adam & Adam double top is two narrow, spike-shaped peaks at roughly the same price level, separated by a valley, after an upward price trend. Both peaks resemble inverted Vs or "hypodermic needles" — typically formed by one- or two-day price spikes on heavy volume. The pattern only becomes a tradeable signal when price closes below the confirmation line (the lowest low between the two peaks). Until that close, you're looking at a twin-peak formation, not a double top — and 60% of unconfirmed twin peaks resolve upward instead.

Adam & Adam is the all-spike variant of the four Adam/Eve double-top combinations. Its average post-breakout decline is 15%, ranking 19 out of 36 patterns — squarely middle-of-the-pack.

Why it matters

Most traders see two peaks of similar height and immediately call it a "double top." Bulkowski's data shows this snap judgement is wrong three times out of five if you don't wait for confirmation. The rigour of the confirmation-line rule is what separates a discretionary hunch from a measurable edge — and it's the single most important rule across all four Adam/Eve top variants.

Why peak shape changes the trade

Adam (narrow spike) and Eve (wide, rounded top) reflect different participant behaviour. Adam peaks form when buyers exhaust themselves in a brief panic — a one-day blow-off — and sellers immediately take control. Eve peaks form when distribution drags out over weeks. The shape of each peak hints at how much supply still sits overhead and how decisively sellers are in control. All four combinations confirm the same way, but their failure profiles, average declines, and pullback rates differ enough to matter for sizing and stops.

Why 5% failures dominate the risk picture

A "5% failure" — where price breaks out downward then drops less than 5% before rebounding — happens in 25% of Adam & Adam tops. That ranks 21 out of 36, putting it among the more failure-prone bearish patterns. If you short the breakout without a tight stop, one in four trades will hand you a small loss as price reverses. The pattern works; you just can't size it like a high-conviction setup.

Key takeaways

Mental model — anatomy of the pattern

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Mental model — the four Adam/Eve combinations

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Practical application

The confirmation discipline

Stops and sizing

When to ignore the pattern

Example

Imagine a stock that has rallied from 40 to 80 over six months. In mid-March it spikes to 80.10 on a single high-volume day, sells off to 72 (the confirmation line), then four weeks later spikes to 80.40 on lighter volume before reversing. Both peaks are narrow inverted Vs at near-identical highs.

Three things must happen before you act:

• Price must close below 72.00.
• You note the right-peak high (80.40) as your stop level — roughly 11% above the breakout.
• Pattern height is 80.40 − 72.00 = 8.40. Measure-rule target: 72.00 − 8.40 = 63.60, a ~12% decline.

If the close below 72 prints at 71.20 on heavy volume, you short there. Two days later price rallies back to 72.10 (a typical pullback). You can either add to the short here (tighter stop just above 72.40) or hold the original position. If price closes back above 80.40, you've hit a 5% failure — exit on the next day.

A 15% average decline on a $71 entry is a $10.65 move; with a stop loss of $9 (entry 71 to stop 80), reward-to-risk is roughly 1.2:1 — which is why this pattern, despite working most of the time, is not a setup you size aggressively.

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