Click to watch the Market Profile Preferences Flash video.

  Click to watch the Market Profile Overview Flash video 

Singles - This will draw a line where a run of singles starts.  In Market Profile charts, "singles" refer to prices within profiles which only contain a single TPO/letter but which are surrounded (above and below) by prices with at least two TPOs.  If you look at the market profile chart to the right, notice that singles were created in the N period, as those singles have double TPOs both above and below them.  However, if you look at the P at extreme low of the profile, that is not considered a single because there are no prices below it which contain 2 or more TPOs.

The Singles line will be drawn on the letter where the singles area was first started. Single prints can often lead to trend days and are important to be aware of. Price is NOT in balance in these areas and they are often referenced as points to look at for potential support or resistance.

These single print lines will continue to extend across the chart until they are touched by future price. 

1. Double click the Market Profile chart to open the Preferences window.
2. Click the Price Levels tab and check off the box "Singles".
3. Click OK.

ADDITIONAL NOTE:  As of version 10.0, an option has been added to the Price Levels tab of the Market Profile preferences window titled "Label Singles with Extreme Price of Profile".  If this option is not checked, all singles will be labelled with their actual price.

If you are looking to add a horizontal line to the Footprint chart or another multi-pane chart then see this FAQ on how to do so. http://support.marketdelta.com/entries/114800.

Specifically, refer to the syntax:

=SINGA     Next Single Above Current Price