Banker News
I actually like the idea of this site. I spent a few years consulting in financial services and always found the world fascinating. I could see myself browsing it on a regular basis.
As a member of your target audience, I'd suggest focusing on the discussion side since that's where you likely to be able to add value. Finance professionals already have content professionally curated and ranked by the various paid news services - Reuters, Bloomberg TOP, READ (ranked by views) etc., but there is no discussion there.
edit: Probably too much time spent on hn
Maybe 'Broker News' or 'Teller News'?