Another technique Gann used was the FAN tool. This tool consists of a set of geometric lines drawn with different slopes. These lines give support and resistance when placed on a chart. A 1X1 line is a 45-degree line, one unit on the Y axis and one unit on the X axis.

The FAN tool uses 1×1, 1X2, 1X3, 1×4, 1X8, 2X1, 3X1, 4X1 and 8X1.

Above is a weekly chart together with a Gann Fan line drawn from the March 2020 low. Fan lines give resistance and support in Time and Price.

The November 2020 low hit a 45-degree support (green line) at 308. Recently price hit the 2X1 angle in January 2021 (brown) at 465.

Fan lines can be drawn from Different Gann points. The intersection of Fan lines can be very important support/resistance in Time and Price.