Gann Angles


The Gann angles are named after W. D. Gann, a 20th-century market theorist. Gann described the use of the angles in the stock market in The Basis of My Forecasting Method, a 33-page course written in 1935. The legitimacy of Gann’s techniques has been seriously questioned. Calculating a Gann angle is equivalent to finding the derivative of a particular line on a chart in a simple way.

Gann Angles

What is ‘Gann Angles’

Created by W.D. Gann, a method of predicting price movements through the relation of geometric angles in charts depicting time and price.

Explaining ‘Gann Angles’

The ideal balance between time and price exists when prices move identically to time, which occurs when the Gann angle is at 45 degrees. In total, there are nine different Gann angles that are important for identifying trend lines and market actions. When one of these trend lines is broken, the following angle will provide support or resistance.

Further Reading

  • Artificial intelligence and financial services – [PDF]
  • Busic Forecasting Techniques for Currency Wolatility in Changing Economic Environment – [PDF]
  • Modeling Financial Markets Using Concepts From Mechanical Vibrations and Mass-Spring Systems – [PDF]
  • Exploring a theoretical framework to structure the public policy implications of open innovation – [PDF]