I finally got around to finishing my Stocks Watchlist WordPress Plugin [download].
The Stocks Watchlist plugin allows you to store stock symbols in your WordPress database and then output these symbols along with their live prices to your WordPress blog. You should be able to see mine in the far right hand column here.
Here it is possible to add a description to the stock symbol and also enable it to be visible in the output.
To output your stocks watchlist, add the following code to your blog template:
<?php swl_output() ?>
When the stocks watchlist is output, it will retrieve the latest price for the stock from Yahoo Finance and also insert a link to the stocks news page at Yahoo Finance.
The plugin was developed with WP2.1, but should work on all versions. Also, it requires cURL to be enabled on your webserver.
If you would like to give it a go, I would really appreciate some feedback. Also, I would be keen to hear of any features that you would like to see added to the plugin.
Update v1.1 v1.0 has not been working for a while, but I have now fixed the bud.