Open Interest

Open interest is the number of outstanding, or un-liquidated, futures contracts at the end of a trading day. Open interest studies are available only for commodities and futures instruments drawn on daily and weekly charts.

Every time a contract is traded on the exchange floor, open interest is affected in one of three ways: it increases, decreases, or it stays the same. This information can help you interpret the relative strength or weakness of a market.

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