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2007issue C051-3

Constructing Gann fans as currency support and resistance

A Gann fan is drawn from a significant high or low after the chart is squared to a 1x1 price-time ratio, and each ray is read as sequential support or resistance rather than as a simple retracement mark.

  • Time targets start from a 360-unit circle time map. Selected degree intervals and the 13-, 26-, 39-, and 52-week marks are projected from a significant high or low as candidate reversal dates.
  • The one-by-one line is the 45-degree diagonal of a price-time square. Companion Gann-fan rays use fixed price-time ratios, and the flatter 2x1 through 8x1 set is preferred over the steep 1x2 through 1x8 set.
  • A fan break through one ray is treated as a move toward the next ray, so each line functions as sequential support or resistance.
  • Currency examples show price tracking the 45-degree line into a low, then treating later fan lines as resistance. Overlapping fans from more than one origin are treated as stronger than a single set, on both daily and weekly charts.
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Current trackGann angles47 readingsTrendline139 readingsSupport and resistance227 readings

A Gann fan is a family of rays from a significant high or low at fixed price-time ratios. Those rays are read as sequential support and resistance rather than as simple retracement marks.

Project dates from the circle time map

Time-target construction starts from a 360-unit circle time map and projects selected degree intervals from a significant high or low as candidate reversal dates. Quartering a year drawn on that circle produces 13-, 26-, 39-, and 52-week marks treated as candidate reversal dates from a significant peak or trough.

The emblem construction inscribes a square and a triangle in the circle so they share one corner. That emblem pointer must sit on a significant high or low and yields five candidate reversal targets. Degree-based time targets can be rescaled by 365/360, or about 1.0139, to align circle degrees with calendar days.

Square the chart to a one-by-one line

The primary trendline is the 45-degree diagonal of a price-time square, defined by a 1x1 price-time ratio. That one-by-one line is the primary trend trajectory. Departures from that line are read as strengthening or weakening of the trend.

Add the companion fan rays

Companion fan lines are built from fixed price-time ratios that map to 82.5, 75, 71.25, 63.75, 45, 26.25, 18.75, 15, and 7.5 degrees. The flatter 2x1 through 8x1 set is preferred over the steep 1x2 through 1x8 set.

Gann fan ray angles by price-time ratio

Once a currency chart is squared, the 1x1 ray is the 45-degree spine and every other listed ratio is a named support or resistance test the next swing can invalidate. The degrees are the exact column from Luca’s Gann ratio table in the article, not a digitized candle path.
Once a currency chart is squared, the 1x1 ray is the 45-degree spine and every other listed ratio is a named support or resistance test the next swing can invalidate. The degrees are the exact column from Luca’s Gann ratio table in the article, not a digitized candle path.

The article treats the steep 1x2, 1x3, 1x4 and 1x8 rays as rarely useful; breaks are read along the flatter 2x1, 3x1, 4x1 and 8x1 lines toward the next ray.

Read each ray as the next support or resistance test

A break of one fan line is treated as a signal that price is likely to travel toward the next fan line, so each ray functions as sequential support or resistance. A fan break is that traverse through one ray, read as a move toward the next ray in the same fan.

Currency charts and overlapping fans

Currency-chart examples show price tracking the 45-degree line into a low, then treating later fan lines as resistance that either holds or, if broken, opens a test of the next line. Overlapping fans drawn from more than one origin are treated as stronger support and resistance than a single fan set. The same construction is shown on both daily and weekly currency charts.

Educational research material, not investment advice. Historical source context does not establish present-day performance.
19 of 34 in the Gann angles track
20108-9 pp.Next on Gann anglesABC completion, wave-two windows, and Gann ratiosOnce a prior ABC is treated as complete, the working map becomes a five-wave advance still labeled inside its first rise.
All readings on this track · 34 readings
  1. 1984Range grid to sideways break in 1984 gold
  2. 1985When Gann lines, Gann angles, and a Fibonacci retracement coincide
  3. 1987Evaluating angular cycle overlays on independent stock swings
  4. 1988Multi-scale Elliott counts with Gann and Fibonacci confluence
  5. 1988Gann angles as hand-scaled chart geometry
  6. 1989A time, price, and pattern filter on one platinum sequence
  7. 1989Gann angles on point-and-figure grids
  8. 1990Gann price-time clusters for Elliott retracements
  9. 1990Channel regimes and Gann angle hinges
  10. 1990A gold campaign log as a trade procedure
  11. 1991A fourth Treasury bond resistance test as one time-price hypothesis
  12. 1991An eclipse calendar as a testable cycle scaffold
  13. 1992Gann-angle intersections and half-range zones
  14. 1998Wave and ratio self-similarity as a testable chart hypothesis
  15. 2000Constructing Gann fan angles from swing extremes
  16. 2002Combining Fibonacci retracement, Gann angles, and the moving average in FX
  17. 2002Halfway retracement as a trend confirmation filter
  18. 2006Volume distribution, Fibonacci extensions, and Gann angles on one downswing
  19. 2007Constructing Gann fans as currency support and resistance
  20. 2010ABC completion, wave-two windows, and Gann ratios
  21. 2010Constructing a Gann, Fibonacci, and decade-scale reversal cluster
  22. 2010Gann angles as timed tests that still need structure and RSI
  23. 2010Gann angles heritage is not a signal
  24. 2010Gann-fan time windows confirmed by Elliott-wave position
  25. 2010Gann angles as a repeatable chart hypothesis
  26. 2011Wave and ratio overlays as confirmation, not forecasts
  27. 2013Gold wave four as a time and price cluster check
  28. 2014A case study that separates cycle forecasts from Gann and Elliott readings
  29. 2014Relative charting, Gann angles, and trendline breakouts
  30. 2016Gann fans and a 2016 long-wave case as checkpoints, not forecasts
  31. 2017Gann angles, scale dependence, and the gap between legend and method
  32. 2017Gann angles as overlay, not original practice
  33. 2018Combine Gann angles, oscillator zones, and a protective stop
  34. 2020Confirming Gann hi-lo swings with ADX and stochastics
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