In: Finance
You are an undiversified investor trying to decide whether you should invest in Disney or Amgen. They both have betas of 1.25, but Disney has an R Squared of 73% while Amgen’s R squared is only 25%. Which one would you invest in?
Answer :- option B ( should invest in Disney)
Reasons :- R squared represents proprtion of total variance
which is systematic i.e. risk that can not be avoided. Hence Higher
R square mend higher proportion of systematic variance and lower R
square represents lower proportion of systematic variance in total
variance.
Since R square of Amgen is lower , it shows lower systematic
variance and higher proportion of unsystematic variance and thus
reflects poor diversification at Amgen
hence we should selct Disney