UPDATE: A reader suggests Reuters (Thompson Reuters) which is one of the wire services, such as AP and UPI. What you read on many other news sites is often verbatim from the wire services and often it will appear on the wire service sites hours or even days before.
Reuters is extensive - with over a dozen categories. They have a "Money" and "Markets" section which seem to overlap, as well as raw data sections for stocks, bonds, and whatnot. It is a good resource, arguably better than MSN, but almost too much data in some cases.
I will check out AP and see if UPI has an app as well.