Risk Analysis of Pfizer Inc.(Stock Code- PFE) :

Estimate the amount of systematic risk in the shares of Pfizer Inc., and compare the systematic risk in your stocks to the stocks of two competitors. Your discussion should include an explanation of which factors could possibly explain the differences and similarities in systematic risk of these shares.

During estimation of the risk analysis, calculate their Realised return, Average return, Variance of returns and standard deviation of returns.

Information on listed companies and their securities outstanding is available on public investing websites, such as investing.com, or Yahoo Finance.