@cameron real time stock tracking used to be done a lot with Java applets, so this might be what you’re looking for (not sure if the J stands for Java, but probably it is)
@frank Right you are. It's a .jar file.
@cameron It's unfortunately not Free/Libre Software, though.
Some of the libraries are "All rights reserved" and there seems to be no copyright notice on the website or in the repository, that would say anything else.
Yes, that is a bummer. "Free" but not fully open source or Free Software.
Linux Geeks doing what Linux Geeks do..