Harmonic and chart patterns
AB=CD pattern
A move, a pullback and a second move of about the same size: the simplest harmonic pattern.
Идея простыми словами
Markets often move in steps of similar length. If A-B was a 100-pip move and B-C a pullback, C-D is often about 100 pips too.
Как считается
Click A, B, C and D. The tool shows BC as a ratio of AB, CD as a ratio of BC and CD as a percentage of AB. After C it draws where D is likely (CD = 100%, 127.2% or 161.8% of AB); after D it draws the targets (38.2% and 61.8% of CD back from D) and a stop beyond the next extension of AB.
BC usually 0.618–0.786 of AB
CD ≈ AB (100%), often 1.272–1.618 of BCКак использовать
- Project D to find a potential end of the move and plan exits or reversals there.
Выводы
- CD much longer than AB shows a strengthening trend.
Пример
AB rises 80 points, BC retraces 50 points (0.625), so D is expected about 80 points above C.
Цены в примерах приведены для иллюстрации.
На что обратить внимание
- Like all patterns, use it with other evidence.
Немного истории
Described in H. M. Gartley's work and popularised by Larry Pesavento and Scott Carney.
Только образовательный материал. Ни один индикатор или паттерн не предсказывает будущее, и ничто здесь не является инвестиционной рекомендацией.