|Andrews' Pitchfork is a line study
consisting of three parallel trendlines based on three user selected
points in time. This tool was developed by Dr. Alan Andrews.
This upper and lower tines of the pitchfork provide support and
The first trendline begins at the left-most point selected
(either a major peak or trough) and is drawn so it passes directly
between the two right-most points. This line is the
"handle" of the pitchfork. The second and third trendlines
are then drawn beginning at the two right-most points (a major peak
and a major trough) and are drawn parallel to the first line. These
lines are the "tines" of the pitchfork.
Additional tines may be added to the Pitchfork by checking the
"Draw Additional Tines" checkbox and by specifying the
multiple(s) in the "Tine Multiple(s)" checkbox. Each
multiple represents a multiple of the distance from the base
trendline to the standard tines. By definition, the standard
tines will be drawn at a multiple of 1. If you would like to
add two additional tines on each side, equally spaced, then you
would specify "2, 3" as the tine multiples. The
multiples can be separated by a comma or a space and they may be
whole or decimal numbers.
Andrew's Pitchfork can be quickly added to a chart by first
clicking on the Pitchfork button
in the charting toolbar. Then, click three times in the chart,
first on the bar on which the pitchfork handle should begin, second,
on the bar where the high tine should begin, and third on the bar
where the low tine should begin. Any of these three points on
the pitchfork may then be adjusted by simply clicking on the point,
and then clicking on the bar to which you would like that point
are very similar to Andrew's Pitchforks in every way except the
placement of the handle. The chart below shows the handle
position labelled A.
The Schiff pitchfork moves the handle instead
to the midpoint between the handle (point A) and the base of the
tine furthest removed from point A (point B). The Schiff
pitchfork can be seen below in blue. Notice A-B is drawn as a
The Modified Schiff Pitchfork similarly
adjust it's handle, keeping the same horizontal (datetime) position
as the original Andrew's Pitchfork handle (point A in chart above),
but adjust the vertical position to half the vertical distance
between points A and B.