Gartley is a Fibonacci pattern that is essentially an ABCD pattern with an extra segment XA.
It is identified if the following proportions are kept:
- The price difference between B and C is about 61.8% of the price difference between B and A.
- The price difference between B and A is about 61.8% of the price difference between C and D.
- The CD segment is a 78.6% retracement of the XA move.
When the pattern is complete, it may suggest that the price is likely to find support or resistance at one of the Fibonacci levels calculated based on the price level of point D. Note that the Fibonacci levels are only displayed for the last Fibonacci pattern on the chart.