In: Finance
You are trying to allocate your assets into a risky portfolio and the purchase of a risk free asset with a return of 2%. You use the following data to estimate information about the risky portfolio:
Year |
Return |
2014 |
-15% |
2015 |
-5% |
2016 |
30% |
2017 |
-10% |
2018 |
35% |
If you have a risk-aversion factor of 2.5, what percentage of your total portfolio should be in the risky portfolio?
Year Return Dev.
=Return-E(r) Squared Dev.
2014 -15.00% -22.00%
4.8400%
2015 -5.00% -12.00%
1.4400%
2016 30.00% 23.00%
5.2900%
2017 -10.00% -17.00%
2.8900%
2018 35.00% 28.00% 7.8400%
Total 35.00% 22.3000%
Expected Return= Total/number of years
35%/5
=7.00%
Standard deviation =√( sum of squared deviation/(n-1))
√(22.3%/(5-1))
=23.61%
Risk free rate= 2%
Risk aversion factor= 2.5
Formula for investment in risky portfolio
Weight of ORP = ( Expected retun of Risky portfolio - Risk free
rate)/(risk aversion coefficiennt * Std. dev. of ORP
^2)
(Er (P) - Rf)/ (A*Sd^2)
=(7%-2%)/(2.5*(23.61%)^2)
=0.3587880928 or 35.88%
So portfolio invested in Risky portfolio=
35.88%