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Gann Angles

File Photo: Gann Angles
File Photo: Gann Angles File Photo: Gann Angles

What are gann angles?

Gann angles are named after their originator, W.D. Gann. Based on geometric angles of time vs. price, Gann felt the angles might forecast price changes. 20th-century market theorist Gann His theories’ validity and effectiveness are debatable. Several Gann angles form the Gann fan.

What Do Gann Angles Say?

Gann recommends 45 degrees of time-price equilibrium. There are nine Gann angles for determining trends and market moves. When one angle breaks, the price should shift to the next.

Gann believed that the 45° angle, representing one unit of price for one unit of time, was the most essential. When a commodity or stock follows a 1:1 angle, its value increases by one point per day or the price bar.

A trader can set any ratio as long as they are consistent. With the S&P 500 near 3,000, daily point movements are negligible. For 1:1, the trader might set the ratio at 10 points each day or 30. Alternatively, create a 45-degree angle on a chart and overlay the Gann angles with a 1:1 alignment.

Lock the price chart scale when employing Gann angles. While zooming, most charting systems modify the scale. That alters the angle. Locking the scale stops this.

The additional Gann angles are 2:1 (two points per time unit), 3:1, 4:1, 8:1, 16:1, 1:2, 1:3, 1:4, and 1:8. These aren’t just up-and-downs. These also apply to downtrends. 1:8 signifies the price rises by eight units annually; 3:1 means one unit moves in three periods.

Example of Gann Angle Use

Tracking and waiting for chart tops and bottoms starts the application. The application of Gann angles follows. Most charting and trading systems include a Gann fan or Gann angles indicator, which includes the listed angles.

The market is vital when the trend increases, and the price stays above a rising angle without breaking below it. Weak markets occur when the price stays below a declining angle without breaking above it. Its angle indicates the trend’s strength or weakness.

If the price crosses through one angle, it may move toward another.

The SPDR Dow Jones Industrial Average ETF chart uses Gann fans. Off the late-2018 low came the first angles. They were drawing 1:1 at 45 degrees. The upward tendency eventually followed the 3:1 angle.

The Price fell further. The Price breaks all uptrending angles as it falls. Gann angles can help decrease the peak price point at any stage throughout the drop. 1:1 is 45 degrees again. An angle tool can ensure 1:1 is 45 degrees.

Difference Between Gann Angles and Trendlines

Gann angles are constant, regardless of Price. Trendlines link swing lows and highs in Price. Various indicators show various things. Gann angles are independent of price activity and should not flow with it.

 Usage Limits of Gann Angle

Gann invented time and price scales for his charts. Most charting applications auto-scale data for screen size. Any chart may depict a 45-degree angle, but if the x- or y-axis includes numbers, their angles will meet at different times and prices. Without equally sized charts, traders will have distinct viewpoints. The indication is highly subjective.

This indicator holds little value for trade signals. After breaking an angle, the Price seldom moves to the following Gann angle.


  • Gann angles are based on the 1:1 45-degree angle. Gann thought the 45-degree angle was essential, and trends above it were stronger than those below it.
  • Price bottoms extend upwards, or tops extend downwards for Gann angles.
  • Other Gann angles are 2:1, 3:1, 4:1, 8:1, 1:2, 1:3, 1:4, and 1:8. Price should migrate toward the next angle as it travels through one.

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