Go to finra-markets.morningstar.com/BondCenter and research the bond prices and yields issued by Pfizer. Enter the ticker symbol "PFE" to do a search. Answer the following questions in a word document:

1. What is the shortest maturity bond issued by Pfizer that is outstanding?

2. What is the longest maturity bond issued by Pfizer that is outstanding?

3. What is the credit rating for Pfizer`s bonds?

4. Do all bonds have the same credit rating? Why do you think that is?