Use WP to manage your stocks watchlist. Publish your watchlist on your blog with live prices from Yahoo Finance.
This plug-in for some reason, at least via my webhost, could not read the CSV file correctly. With some heavy modification I have gotten it work, and implemented the output via a widget for inclusion with other widgets in the side bar. With the approval of the original plug-in author I would be interested in releasing it. (I haven't had time to look at the licenses this original is released under, so I'm not sure if I even need permission.)
Wonderful plug-in when working correctly.