Gann Square of Nine

About Gann Square of Nine

Gann’s Square of Nine is a horizontal support system developed by W.D. Gann in the early 1900s. Rumors saying that he has been using this system to achieve his legendary trade performance in the days where there were no computers to assist traders.

Using Square of Nine in VestraCharts

To view the Square of Nine horizontal lines on a chart, first click on the chart window to activate it. Then in the Studies window, click on the checkbox before SQ9.

Square of Nine on the IBM Daily chart

Square of Nine on the IBM Daily chart

Using Square of Nine for Forex currency pairs

Since those days when Gann was using his system there were only stocks available for trading and their price range was between the $0-$100 range, the original calculation method is not applicable directly to today’s Forex currency pairs. The Square of Nine calculation in VestraCharts has been improved to be suitable for Forex pairs as well.

When you add the SQ9 Studies to a Forex chart, at first you might see no SQ9 lines at. Click on the Density dropdown and select a different density value. For the EUR/USD currency pair, the values of -3 to -5 are appropriate, depending on the time frame of the chart. See the example charts below:

Square of Nine on the EUR/USD 15 min chart, with Density value of -5

Square of Nine on the EUR/USD 15 min chart, with Density value of -5


Square of Nine on the EUR/USD 1 hour chart, with Density value of -3

Square of Nine on the EUR/USD 1 hour chart, with Density value of -3


VestraCharts will automatically remember your Density settings for each Ticker code and Time Frame, and use the same settings when you return to the same chart again. That way you can use Square of Nine on the different types of Forex currency pairs and different time frames comfortably.

Scan for Stocks/Forex pairs that are near to a Square of Nine level

Using VestraCharts’ Square of 9 scanner, you can find Stocks, Futures or Forex currency pairs whose current price is near a Square of 9 price level on a selected time frame.

The Square of Nine scanner in VestraCharts

The Square of Nine scanner in VestraCharts

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