Re your comment:
Re add, 
(1) by exchange - we really need just by country - we really don't pay any attention if NYSE or NASDAQ - so USA, Can, All/Blank *(We need those exchange to distinguish symbols)* 

I still think we just need country, not Exchange - for Instance, for when we say "These Stocks are now at Low Valuation: AA, BB"  AA might be NYSE and BB on NASDAQ. 

Also please be sure to reserve a Userid field, for future when we will generate User Dependent messages, such as Stock XYZ on your watchlist is now at Low Valuation 