WM Stock Viewer for Windows Mobile 1.0
the author of this app says:
Stock Viewer is a software designed for continuous retrieval of stock quotes through your Windows Mobile PDA. It displays quotes (currently NYSE and NASDAQ) in colors. You can add and save your favorites easily. You can also look at headline news from major resources.
What's more, it is absolutely FREE. (no registration fee, no monthly fee). Just download and run it today!