Gartley Pattern: A Beginner’s Guide to Harmonic Trading

This harmonic reversal pattern uses Fibonacci measurements to identify areas where a price correction may be approaching its end. Traders apply the pattern across Forex, commodities, shares and other markets to define a Potential Reversal Zone (PRZ) around point D.

For CFD traders, the Gartley can provide a structured way to plan an entry, invalidation level and potential targets. However, reaching point D does not mean that price will reverse. The pattern identifies an area to monitor rather than predicting a particular market outcome.

A common mistake is to act before the CD leg has finished forming. If point D has not yet reached the expected PRZ, the pattern is incomplete and the final price structure may develop differently from the anticipated Gartley setup.

What Is a Gartley Pattern?

The Gartley pattern takes its name from H.M. Gartley, whose 1935 book Profits in the Stock Market described the price structure that later became associated with the pattern. The original work did not specify the Fibonacci ratios used in the modern version. These measurements were developed later by technical analysts, including Larry Pesavento and Scott Carney. The widely used modern Gartley places point B around 0.618 of XA and point D around 0.786 of XA.

The Gartley belongs to the harmonic family of chart patterns. It consists of five anchor points — X, A, B, C and D — connected by four price legs.

Unlike simpler formations such as double tops or head-and-shoulders patterns, harmonic trading uses defined Fibonacci relationships between its price swings. Different methodologies may allow small tolerances around these levels, so traders generally look for close alignment rather than assuming that every measurement must match to the final decimal place.

After the initial XA move, price retraces through the AB, BC and CD legs. The structure completes around point D, which forms the PRZ. In a bullish Gartley, traders watch this area for evidence of an upward reversal. In a bearish Gartley, they look for signs that price may turn lower.

How Does the Gartley Pattern Work?

It is identified by measuring the relationships between its price swings using Fibonacci retracements and projections.

The main parts of the structure are:

• XA leg: The initial price move that establishes the range used to measure the rest of the pattern.
• AB leg: A retracement of XA. In the ideal Gartley structure, point B forms around the 0.618 Fibonacci retracement of XA.
• BC leg: A retracement of AB. Point C commonly sits between the 0.382 and 0.886 retracement levels of AB.
• CD leg: The final move into the PRZ. Point D should converge near the 0.786 retracement of XA. The CD move is also assessed against BC, with the BC projection commonly falling within roughly 1.13 to 1.618.

A Gartley also normally incorporates an ABCD pattern. Traders therefore look for the AB=CD relationship, or an accepted variation of it, to converge with the other Fibonacci measurements around point D.

Bullish vs Bearish Gartley Patterns

The same structure can appear in either direction.

• Bullish Gartley: XA moves higher, AB retraces lower, BC moves higher and CD falls towards point D. If the PRZ holds and buyers return, price may reverse higher from D.
• Bearish Gartley: XA moves lower, AB retraces higher, BC moves lower and CD rises towards point D. If the PRZ holds and sellers return, price may reverse lower from D.

The important point is that D represents a potential reversal area. The pattern does not guarantee that price will change direction.

How to Trade the Gartley Pattern

You'll normally focus on the PRZ around point D rather than entering while the pattern is still forming. Once price reaches this area, you might look for additional evidence of a reversal, such as a rejection candle or another form of price-action confirmation.

An illustrative Gartley trade plan might use:

These levels are illustrative rather than fixed trading rules. Entry, stop-loss and profit-target placement can vary depending on the strategy and market conditions.

Point X is commonly used as the broader structural invalidation level because a move beyond X means the expected Gartley structure has failed. Some approaches use a tighter stop around the PRZ instead, although this may increase the chance of being stopped out by a temporary move beyond point D.

Targets also vary. One common approach is to measure the completed AD move and monitor its 0.382 and 0.618 Fibonacci retracement levels as potential profit-taking areas.

A stop-loss can limit risk, but it cannot guarantee execution at an exact price. Fast markets, gaps and limited liquidity can result in slippage.

Trading Costs to Consider

Precise chart levels do not remove the costs associated with CFD trading. These costs can affect the result of a Gartley trade, particularly when a position remains open for several days.

Depending on the CFD and broker, relevant trading costs may include:

• Spread: The difference between the bid and ask price.
• Commission: A separate charge that may apply to some CFD markets or account types.
• Overnight fee: A charge or credit that may apply when a leveraged position remains open overnight.
• Slippage: The difference between the requested execution price and the price at which an order is actually filled.

Spreads can also widen during periods of lower liquidity or significant market volatility. This means a theoretical entry at the 0.786 level may not correspond exactly with the price available for execution.

Common Gartley Pattern Mistakes

As a beginner, you can run into several problems when identifying and trading harmonic patterns:

• Confusing the Gartley with the Bat pattern: The Gartley typically uses a B point around the 0.618 retracement of XA. A Bat normally has a shallower B retracement, commonly around 0.382 to 0.50 of XA, and completes around the 0.886 retracement of XA.
• Forcing the Fibonacci ratios: A chart may resemble a Gartley without meeting the required relationships. Visual similarity alone is not enough to confirm the pattern.
• Entering before point D forms: The structure remains incomplete while the CD leg is developing. Entering early means trading an anticipated pattern rather than a completed one.
• Treating point D as a guaranteed reversal: The PRZ identifies an area where a reversal may occur. Price can continue through it and invalidate the setup.
• Ignoring wider market conditions: Support and resistance, volatility, liquidity and the broader trend can provide useful context when assessing a pattern.

Gartley Pattern: Key Points to Remember

It gives traders a rule-based way to measure price corrections using Fibonacci relationships. Its defining features include a B point around the 0.618 retracement of XA and a PRZ near the 0.786 retracement of XA at point D.

However, the Gartley is a technical analysis framework, not a prediction. Price can move through the PRZ, and different harmonic methodologies may use slightly different tolerances and trade-management rules.

If you're trading CFDs, this makes risk management particularly important. Leverage magnifies market exposure, so relatively small price movements can have a significant effect on an open position.

For UK retail clients, the Financial Conduct Authority (FCA) requires CFD providers to apply protections including leverage limits, margin close-out rules and standardised risk warnings.