In: Finance
Suppose that your friend, Angela, holds a single stock, Early Riser Bank (ERB), which she believes faces little risk. Despite the fact that you agree with Angela on the riskiness of the firm, you set out to show her that her risk would be even lower if she was more diversified. As a demonstration exercise, you find the following returns data for Late Riser Bank (LRB). Using the standard deviation of returns, by how much would Angela's risk have been reduced if she had held a 60/40 portfolio ( 60% in ERB and the remainder in LRB)?
Year ERB LRB
Average return = 15.00% 15.00%
Standard deviation = 22.64% 22.64%