Question

Consider the following information: State Probability Stock A Stock B Stock C Boom 0.32 0 0.25...

Consider the following information:

State Probability Stock A Stock B Stock C

Boom 0.32 0 0.25 0.19

Bust 0.68 0.25 0.08 0.16

What is the expected return of a portfolio that has invested $9,242 in Stock A, $7,934 in Stock B, and   $7,984 in Stock C? (Hint: calculate weights of each stock first). Enter the answer with 4 decimals (e.g. 0.1234).

Homework Answers

Answer #1

Below table shows the calculations and the given information:

Returns
State Probability A B C Total
Boom 0.32 0.00% 25.00% 19.00%
Bust 0.68 25.00% 8.00% 16.00%
Amount invested 9242 7934 7984 25160
Weight 36.7329% 31.5342% 31.7329%
Probability Weighted Returns
Boom 0.32 0.0000% 2.5227% 1.9294% 4.4521%
Bust 0.68 6.2446% 1.7155% 3.4525% 11.4126%

Weights = amount invested in stock/total amount invested

  • Weight for A = 9242/25160 = 36.7329%
  • Weight for B = 7934/25160 = 31.5342%
  • Weight for C = 7984/25160 = 31.7329%

Probability weighted return = probability of state x weight of stock x return of stock

  • Probability Weighted Return for A :
    • Boom = 36.7329% x 0.32 x 0 = 0
    • Bust = 36.7329% x 0.68 x 0 = 0
  • Probability Weighted Return for B :
    • Boom = 31.5342% x 0.32 x 0.25 = 2.5227%
    • Bust = 31.5342% x 0.68 x 0.08 = 1.7155%
  • Probability Weighted Return for C :
    • Boom = 31.7329% x 0.32 x 0.19= 1.9294%
    • Bust = 31.7329% x 0.68 x 0.16 = 3.4525%
  • Portfolio probability weighted return =
    • Boom = 0 + 2.5227%+1.9294% = 4.4521%
    • Bust = 0 + 1.7155%+3.4525% = 11.4126%
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