Stock market analysts advise investors (both individuals and institutions) on which stocks to buy, sell, or hold. Changes in their opinions are called upgrades or downgrades, depending on the direction of their outlook. Changing a "hold" recommendation to a "buy" recommendation is an upgrade, for example. Find a stock that has been recently upgraded or downgraded (you can use New Ratings, www.newratings.com, or a similar source), and then perform some research on that company so you can answer the following questions.
Why did the analysts change their rating on this stock? Was it in response to something the company said or did? Is the company performing better or worse than its competitors? Do you think the rating change is fair to the company?