EN Down
Hi, user_no_name
Live Chat

Neon style digital screen displaying stock market data with fingertips touching it


Developed by legendary trader W.D. Gann, the Gann Fan remains a potent yet versatile tool for technical analysts seeking an “edge.” 

This guide explores how to construct and apply this angle-based technique to map potential trading ranges visually.


Gann Fans Simplified

Gann Fans is a technical analysis tool that identifies potential support and resistance levels based on geometric angle relationships. They are derived from the work of William Delbert Gann, a famous trader from the early 20th century.

To construct a basic Gann Fan:

  1. Identify a significant pivot point on the chart, such as a major high or low. This will serve as the anchor or starting point for the fan lines.
  2. Select one or more angles, typically between 30 and 60 degrees. The choice of angles is subjective, but traders often look for angles that have previously provided support/resistance for that market.
  3. Draw the first trendline from the pivot point using the chosen angle. This forms the fan’s central trendline.
  4. Then, draw additional trendlines paralleling the central one above and below it at consistent angular increments (e.g., every 2.5 or 5 degrees) to create the full fan shape.
  5. The trendlines act as potential support and resistance areas as prices approach them. Upward fans identify resistance levels, while downward fans identify support levels.

Gann Fans can also be drawn in different orientations:

  • Upward fans anchor from a significant low and slope upwards to project resistance zones.
  • Downward fans land from a major high and slope downwards to project support zones.

Also, multiple fans using different angular degrees can be overlaid to form a matrix of intersecting trendlines. The areas where multiple fans intersect are critical potential support/resistance zones.

Take a look at this article: Trends in Trading Explained


Start Trading Now


Interpreting Projected Ranges

When an asset’s price approaches one of these trendline levels, it signifies an area of interest where the existing trend could encounter resistance and selling pressure, potentially pausing or reversing an upward advance. 

Conversely, during downtrends, these fan levels can act as support zones where buyers could step in to curb further declines.

The successful testing of a Gann Fan level, where price respects the projected trendline as support or resistance, reinforces the validity and significance of that particular fan’s geometric angles. 

However, suppose the price decisively penetrates multiple fan levels. In that case, it may signal that the fan has lost its predictive value, and a new fan should be drawn from a more recent pivot point to capture the current market dynamics better.

Fans constructed from highly significant swing points, such as all-time highs or lows, tend to carry more weight and remain active over longer periods than those drawn from less impactful pivot points. 

This is because swing highs and lows often represent levels where the market has experienced prolonged battles between buyers and sellers, imbuing those price points with greater technical significance.

Learn more by checking out this useful article: Pivot Points in Trading - Key Levels of Support and Resistance


Integrating with Oscillators


Computer monitor displaying financial instrument charts with diverse technical analysis indicators


Oscillators like the Relative Strength Index (RSI) and the Moving Average Convergence Divergence (MACD) are designed to measure the momentum and strength of a security’s price movements, often helping to identify overbought and oversold conditions.

For instance, if the RSI indicates an overbought condition near a resistance level projected by a Gann Fan, this confluence could signal an opportune time to consider taking profits or initiating short positions. 

Conversely, suppose the MACD shows oversold readings near a fan-based support level. In that case, it may present a favourable opportunity to enter long positions or add to existing long exposure.

The integration of Gann Fans and oscillators is not limited to single-point signals; it can also be applied to identify potential reversal zones. 

When multiple Gann Fans converge to form a channel-like pattern, the area between these converging fans can serve as a range where oscillators may reverse from overbought or oversold extremes, further increasing the reliability of the trading signals.

Expand your knowledge with this write-up: Deciphering the Moving Average Convergence Divergence Indicator (MACD)


Advancing with Arc Bands


Trading graphs with oscillators displayed on a computer monitor for financial analysis

While traditional Gann Fans employ fixed angles derived from geometric principles, some technical analysts prefer the added flexibility of Arc Bands, also known as Dynamic Gann Fans or Squares. 

Unlike standard fans, which are static, Arc Bands dynamically adjust their angle based on the underlying volatility and expanding price swings of the security being analyzed.

The advantage of Arc Bands lies in their responsiveness to market conditions. During relatively low volatility and sideways price action periods, the bands tighten and converge, providing more precise support and resistance projections. 

Contrariwise, when volatility increases, and price swings widen, the bands expand outward to accurately capture the heightened market dynamics.

This dynamic volatility adjustment allows Arc Bands to remain highly reactive and relevant, ensuring that the projected levels accurately reflect the current market environment rather than relying on a fixed set of angles that may become less applicable over time.

You might also like to read: Schaff Trend Cycle Indicator Explained


Closing Thoughts

Gann Fans provides a powerful geometric-based technical analysis tool for identifying potential support and resistance levels. By projecting angled trendlines from significant pivot points, traders can visualize areas where prices may encounter selling or buying pressure. 

Simple Gann Fans offer valuable insights, yet more advanced techniques like integrating oscillators or using dynamic Arc Bands can further enhance the analysis. 

Traders are encouraged to learn more about Gann Fans, explore historical examples, and continue to hone their skills in interpreting these unique chart patterns. 

With experience, Gann Fans can become a versatile addition to any trader’s analytical arsenal for mapping potential trading ranges.

Become a member of and access a cutting-edge trading platform!

“When considering “CFDs” for trading and price predictions, remember that trading CFDs involves a significant risk and could result in capital loss. Past performance is not indicative of any future results. This information is provided for informative purposes only and should not be considered investment advice.” 

Related Education Articles

How to trade on the commodity of crude oil

Tuesday, 16 April 2024


How Do You Trade in Crude Oil?

Gold Standard

Monday, 15 April 2024


The Gold Standard: A Historical and Its Modern Implications

How To Apply Proper Research On Stocks

Monday, 15 April 2024


How to apply proper research on Stocks

How to open a free demo account

Wednesday, 10 April 2024


How to open a free demo account

Live Chat