Similar to a Fibonacci Fan, the slope of each line is used to measure trend corrections and the rate at which a trendline is ascending or descending.

A Speed Resistance Fan is created by drawing a line from a major low to a major high. These reference points divide a time-price range into thirds. The first reference point defines the starting-limit-price-and-time and is the point from which the fan extends. The time-price range is determined relative to a second point that defines the ending-limit-price-and-time. The angles of the fan show 33.33% and 66.66% of the time-price range, respectively.

Prices should find support above the 2/3 line. When prices fall below the 2/3 line, they are expected to drop quickly to the 1/3 line where they normally find support again.

Speed Resistance Lines may also be drawn as an arc.

When the fan is drawn, two "grab bars" are placed where the trend line starts and ends. To change the position of the trend line, click the object to select it, position the cursor on either of the grab bars, and drag it to the desired location.

To move the Speed Resistance Fan, position the cursor in its center (the cursor changes to a hand). You can now drag it to a new position on the chart.