A head-and-shoulders pattern uses three selected peaks with the middle one highest. The inverse version uses three troughs with the middle one lowest. The pattern supplies a framework for a reversal hypothesis; it is not proof that a reversal will follow.

Mark the Structure Reproducibly

For the regular pattern, the neckline joins the intervening lows. It may slope. Define the permitted difference between shoulders, the swing-selection rule and the time window before examining results.

A right shoulder must become recognisable before a strategy can use it. If swing confirmation needs later candles, the apparent turning point on a finished chart was not yet a confirmed signal at that time.

Lower volume on successive peaks is an optional filter, not evidence that specific buyers have lost enthusiasm. A sloping neckline does not establish a stronger subsequent move.

Distinguish Entry Variants

A neckline crossing, a completed close beyond it and a later retest are different triggers. Waiting for a retest can change the price and leave some trades unfilled. None certifies a reversal.

For a short, a stop above the right shoulder is one possible invalidation rule. Calculate the distance from the actual fill and include costs and execution uncertainty. A large pattern can require a position smaller than the instrument permits.

A Measured Target Is Not a Forecast

If a hypothetical head is $60 and the neckline directly below it is $55, the vertical height is $5. If the later breakout is at $54 on a sloping neckline, subtracting that height gives a $49 reference target. Using $55 again as the breakout origin would be a different calculation.

For the inverse pattern, project the selected height upward. Record both measurement points so another reader can reproduce it.

What Counts as Evidence

A general claim that the pattern works 65–70% of the time is not enough without a dataset, recognition rules, exit definition and costs. Keep failed breaks and no-entry patterns in the record. A brief recovery across the neckline does not automatically justify reversing the position.

Compare exact rules on separate periods, and do not assume a daily version is more reliable than an intraday one. The double-top guide offers a simpler related structure to compare.

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