In: Finance
The market is expected to generate a 12% return and the risk free rate is 4%. A portfolio manager has 70% of her capital allocated to stock A with a beta of 0.8, which generated a total return of 11%. 30% of her capital is allocated to stock B with a beta of 1.1, which generated a total return of 12%. What Alpha was generated by the manager by allocating more capital to stock A?
Multiple Choice
0.25%
0.38%
0.18%
0.11%
Question summary : Calculation of Alpha of a protfolio
Answer : Option 3 = 0.18%
Formula is
Alpha = r – Rf – beta * (Rm – Rf )
where r = return on protfolio = weighted average return of A and B = (0.70 * .11) + (0.30 * 0.12) = 11.3%
Rf = risk free rate =4%
Beta of the protfolio is weighted average Beta of A and B = (0.70 * .8) + (0.30 * 1.1) = 0.89
Rm = market return = 12%
Alpha = 0.113 - 0.04 - 0.89( 0.12-0.04)
= 0.113 - 0.04 - 0.0712
= 0.0018
= 0.18%