I’m studying for my Mathematics class and need an explanation.
Your postings should be qualitative and provide substantive depth that advances the discussion.
Yahoo! Finance has information on stock upgrades and downgrades at http://finance.yahoo.com/marketupdate/upgrades. Choose a company on the list of stock upgrades/downgrades by clicking on the company ticker. Reading through the headlines find reasons why the upgrade/downgrade has taken place. (Discuss one upgraded stock and one downgraded stock.)