The Gartley pattern is made up of four price points, labeled X, A, B, and C. The pattern is considered to be valid if the following conditions are met:
XA is a retracement of 61.8% of the AB leg. BC is a retracement of 38.2% of the XA leg. CD is an extension of 161.8% of the XA leg. The Gartley pattern is a relatively complex pattern, and it is considered to be a relatively reliable indicator of a potential reversal, but it is important to use it in conjunction with other technical indicators and confirmation signals.