Volume Accumulation Oscillator

The volume accumulation oscillator is a modified on balance volume (OBV) study. The volume accumulation oscillator assigns a proportional amount of volume to the mean price for a period, depending on where the close falls in relation to the mean price. All volume is assigned to buying or selling only if the close is the high or the low for a period.

Formula:

Where:

VAO = current volume accumulation

C =close

H =high

L =low

V = volume

Parameters

Parameter

Function

Color

Default color is yellow. To change the color, click on the color button:

Then choose the color you want from the Color Menu.

Graph

Sets the drawing method for the study.

Option	Function
Bars	Renders the study as bars.
Dots	Renders the study as dots.
Dotted	Renders the study as dots.
Histogram	Renders the study as a histogram drawn from 0.
Line (Default)	Renders the study as a line.
Not Drawn	The study is not rendered.

Line Style

Sets the rendering technique of the graph parameter (if it is set to Line).

Option	Function
Dash-Dot	--l-l-l-l-l-l-
Dash-Dot-Dot	----ll----ll----
Dashed	- - - - - - - - - - - - - - -
Dotted	llllllllll
Solid (Default)	-------------------------

Line Width

Sets the tickness of the study line.

Option	Function
1 pixel (Default)
2 pixels
3 pixels
4 pixels
5 pixels

see, John J. Murphy, Technical Analysis of the Futures Markets, A Comprehensive Guide to Trading Methods and Applications, New York: New York Institute of Finance, A Prentice-Hall Company, 1986, pp. 188-193.