What Is The Gann Fan Indicator & How To Trade With It

Gann Fan Explained

Gann Fans, created by W. D. Gann, are based on the premise that prices move in predictable patterns. Gann Fans are mainly used to identify support and resistance levels and predict future price movements.  Gann’s theory shifted focus away from focusing solely on the price, which is usually the crucial aspect of any forecast and put greater emphasis on the time factor. He wanted to find an answer to this question: “How long should an asset tend to reach a certain price, and what if it diverges from this trend?”. Ganns Fan is therefore a unique and original methodology, since it combines the two fundamental elements that regulate the movements of the financial markets in a single study, price and time.

What is the Gann fan indicator?

Before going to see how Gann’s Fan angles are built, we will immediately see what we can do with them:

  • Build support and resistance trend-lines starting from a single minimum or maximum.
  • Monitor the ascent or descent of the title based on the slope of the corner.
  • Provide price levels capable of causing the reversal of the movement in progress.

Gann Fan angles

As we can see from the image below, graphically, the Fan of Gann consists of a series of lines that open “fan” (precisely) starting from a point (which we will see can be a low, a high or zero). In a little while, we will see that these lines from a technical point of view will become our support and resistance levels. They are also distributed according to a precise angle (the angles or “Fan of Gann”), and this too takes on great importance, as we are about to see.

Gann fan indicator visual
Gann fan indicator visual

Gann Fann natural corner & bullish/bearish corners

We must make an important distinction between the various angles that are formed by tracing Gann’s fan.

  • The Natural Angle is the most important: that of 45 degrees (the “1×1” angle) and is also called the “lifeline”. It is the angle at which the increase of 1 unit of time corresponds to the variation (increase/decrease) of “1 unit of price”.
  • Bullish (bullish) corners are those that describe price growth above the 1×1 corner and are 2×1, 3×1, 4×1, 8×1, 16×1.
  • They indicate the increase/decrease of N price units as a function of a 1-time unit. Their geometric value is 26.25 °, 18.75 °, and so on …are those that describe price growth below the 1×1 angle, i.e., 1×16, 1×8, 1×4, 1×3, 1×2.
  • They indicate the increase/decrease of 1 price unit as a function of N time units. Here too, each of them has a corresponding geometric value: 3.75 °, 7.5 °, 15 °, 18.75 ° …

How to use the Gann fan indicator?

When we have traced Gann’s fan, the price will be found in every moment enclosed between two angular lines; one of them acts as a support, the other acts as a resistance.

Furthermore, depending on which angle the straight-line acts as a support and the straight line that acts as resistance has a certain force; the stronger the angle, the greater the strength of the trend.

Consequently, if the price goes from strong angles to weaker angles (such as the transition from 4×1 to 2×1, or from 1×2 to 1×4, from 1×4 to 1×8), then it means that the trend is losing strength and there may be a reversal.

  • If in a bearish trend (as in our case) the price remains below the “lifeline”, the trend will likely continue.
  • Similarly, if in a bullish trend, the price remains above the “lifeline”, the bullish trend will likely last in the next few sessions.
  • When there is a bearish break towards the 1×2 line, we have a bearish signal
  • When there is a bearish break towards 2×1, we have a bullish signal.

A noteworthy thing to observe recalls what was said at the beginning. The fan lines act as supports and resistances (moreover very reliable).

Using the Gann fan indicator
Using the Gann fan indicator

Gann Fan intersections between corners

Gann did not just trace the support and resistance starting from a high or a low, but he traced numerous straight lines originating from several points. Often, he did it at the same time by the highs and relative lows to study the reference period, then also by the historic lows and highs for long-term forecasts.

This is because straight lines built on highs or lows make their presence felt even after years.

Maybe for those who run into Gann’s fan for the first time, it is advisable to start with the basics and gradually add more cross fans.

Here we limit ourselves to saying that many straight lines projected by a low and a high or by several highs and lows eventually cross, indicating points of possible turning.

Gann fan indicator intersections
Gann fan indicator intersections

Gann fan trading strategy

The primary purpose of the Gann fan indicator is to identify the pivot point (lifeline) along with potential support and resistance levels in the form of other lines originating from the highs and lows; therefore, we can trade the breakout as well as reversal from the Gann fan lines.

Here is a simple Gann fan breakout strategy:

Gann Fan buy signal

  • If the price is above lifeline, look for buy entries.
  • Look for a breakout of the level or reversal from the bottom after a correction.
  • Enter when candle closes above the line (1X2, 1X3 or 1X4).
  • Keep the stop-loss slightly below the swing low.
  • Profit target can be the next level on the upside.
Gann fan indicator buy signal
Gann fan indicator buy signal

Gann Fan sell signal

  • If the price is below lifeline, look for sell entries.
  • Look for a breakout of the level or reversal from the top after a correction.
  • Enter when candle closes below the line (1X2, 1X3 or 1X4).
  • Keep the stop-loss slightly above the swing high.
  • Profit target can be the next level on the downside.
Gann fan indicator sell signal
Gann fan indicator sell signal

Gann fan conclusion

What we have examined here is a minimal part of Gann’s enormous workload. His techniques are still particularly complex in application, and for this reason, although fascinating, can require years of study and constant application to master.

The methods of implementing the Gann Fan indicator into a trading strategy that are outlined within this article are just ideas. I would always ensure that I have good money management, trading discipline and a trading plan when using any forex strategy.

Furthermore, I would combine multiple technical analysis, fundamental analysis, price action analysis and sentiment analysis to filter all entries. You should trade forex in a way that suits your own individual style, needs and goals.

If you would like to practice trading with the Gann Fan indicator, you can open an account with a forex broker and download a trading platform. If you are looking for a forex broker, you may wish to view my best forex brokers for some inspiration.

Happy trading!