Haurlan Index is one of forex technical indicator used in forex technical analysis. Haurlan Index is an overbought / oversold indicator. It was developed in the 1960s by Peter N. Haurlan. It has three components – long term, intermediate term, and short term.

Haurlan Index is used to detect market breadth. There are three components of the Haurlan index :
Long Term:same, using a 200-day exponential moving average.
Intermediate Term: same, using a 20-day exponential moving average.
Short Term: a 3-day exponential moving average is taken of the net NYSE advances over declines.

Each of the three components is used to detect a different movement, whether it is momentum, breakouts, or resistance.