Gartley Pattern

The Gartley Pattern is a five-point harmonic structure that uses precise Fibonacci retracement ratios to project a reversal level. Named after trader H.M. Gartley, who published the pattern in 1935, it combines geometric structure with mathematical ratios to identify high-probability zones where price is likely to reverse. The pattern has become one of the most widely studied harmonic setups in technical analysis.

The five-point framework and Fibonacci ratios

The Gartley unfolds across five points: X (the starting point), A (the end of the initial impulse leg), B (the retracement or pullback from A), C (a counter-move from B), and D (the final retracement that completes the pattern). The beauty of the Gartley lies in the precise Fibonacci ratios that govern the distance from each point to the next.

The defining ratios are:

• XA to AB: B retraces XA by 61.8% (less commonly 50% or 78.6%, depending on variant)
• AB to BC: C extends from B by 61.8% of AB (or less frequently 127.2% or 161.8%)
• XA to XD: D retraces the entire XA move by 78.6% (the “D-zone”)

These Fibonacci percentages are non-negotiable in the classical pattern. A retracement that is 60% instead of 61.8% may still be “close enough” for practical trading, but strict Gartley traders insist on precision. The pattern exists because markets genuinely organize around these ratios—a phenomenon some attribute to market psychology and order clustering, others to self-fulfilling prophecy.

Bullish and bearish variants

An uptrend Gartley (bullish) has XA rising, a pullback to B (retracing 61.8% of XA), a rally from B to C (extending 61.8% of AB), and a final decline to D (retracing 78.6% of XA and often equalling the C-to-D distance, making it an AB=CD as well). At point D, price is expected to reverse upward sharply.

A downtrend Gartley (bearish) has the same structure in reverse: XA falling, a bounce to B (retracing 61.8%), a decline to C (extending 61.8% of AB downward), and a bounce to D (retracing 78.6% of XA upward). The reversal at D is expected to be downward.

The overlap between the AB=CD pattern and the Gartley is intentional. Many classical Gartley patterns contain a 1:1 leg equivalence between AB and CD, reinforcing the reversal signal at D.

The completion zone and D-point

The zone where D is expected to fall—typically a band around the 78.6% retracement level of XA—is called the “completion zone” or “PRZ” (potential reversal zone). Point D is rarely a precise price level; it is a zone where multiple Fibonacci ratios converge. For example, D might lie at both the 78.6% retracement of XA and at the 1.27:1 or 1.618:1 extension of AB, creating a confluence of technical pressure.

When price enters this zone, traders watch for reversal signals: a hammer, a doji, divergence on an oscillator (RSI, MACD), or a break of a trend line. Once price reverses from D, the position target is typically set at level C (the prior pivot), or at level B (the prior high or low), with expectations of a 100%–161.8% reversal from D back toward the XA level.

Market-driven geometry

The Gartley pattern exists because market participants unconsciously cluster orders around Fibonacci levels. When a stock retraces 61.8% of a move, buyers and sellers recognize it as a “natural” pullback—not too shallow, not too deep. When price reaches the 78.6% retracement zone, it feels like both a maximum pain for recent buyers and a last cheap entry for eager short-term traders. This psychological clustering becomes a self-fulfilling prophecy.

The pattern also reflects mean reversion dynamics. A steep move (XA) creates imbalance; the retracements and extensions gradually correct that imbalance. By the time price reaches D, the initial impulse has been nearly fully retraced, and the opposite side is ready to dominate.

Identification and validation

Traders identify emerging Gartley patterns by first spotting leg XA—a meaningful move in one direction. They then measure B’s retracement (is it close to 61.8% of XA?). If so, they watch where C lands relative to B (is it extending roughly 61.8% of AB?). If both B and C align with Fibonacci expectations, the pattern is “confirmed in structure,” and traders project where D should complete.

The pattern is only tradeable once D is actually forming. A Gartley that “should” complete at 8,500 on the S&P 500 is only confirmed when price genuinely approaches 8,500. Early entries—placing buy orders in anticipation of the D-zone—require discipline and small position sizes, because false breakdowns through the D-zone (which then reverse) are common.

Comparison to other harmonic patterns

The Gartley is one of several harmonic patterns, alongside the AB=CD and the Wolfe Wave. The Gartley is more complex, relying on four separate Fibonacci ratios; the AB=CD is simpler, using only a 1:1 leg equivalence. The Wolfe Wave uses convergence and equilibrium lines instead of Fibonacci. All three patterns share the goal of projecting reversal zones, but they approach it differently. Many experienced harmonic traders use all three, looking for confluence—when a Gartley D-zone, an AB=CD point D, and a Wolfe Wave point all converge, conviction is very high.

Common mistakes and refinements

Novice Gartley traders often relax the Fibonacci requirements too much, accepting patterns that are merely “close” to the ratios. This introduces noise; a pattern that hits 60% instead of 61.8% may fail to reverse as predicted. Conversely, some traders are dogmatic, demanding exact ratios and missing profitable setups that are off by a percentage point due to market noise or the precision limits of charting software.

Some analysts use “alternate” Gartley structures: a bullish Gartley with B at 50% instead of 61.8%, or C extending 127.2% instead of 61.8%. These variants are looser and produce more setups but with lower accuracy. The classical Gartley (61.8% and 78.6%) is more selective but more reliable.

Timeframe also matters. A Gartley on a weekly chart—with legs spanning weeks or months—is more robust than one on a five-minute chart where random noise can trigger false reversals. The longer the timeframe, the higher the probability that price actually reverses at D.

See also