Answer:
Stock J 0,5047
Stock K 0,4953
Stock J 6,69%
Stock K 5,25%
Portfolio : 11,94%
Explanation:
To find the Beta that equals to market we need to know how much is x (weight of each stock in the portfolio) with an equation of one variable that equals to 1.
Portoflio with the same risk as the market means a beta of 1,00
1,23 (x) + 0,84 (1-x) = 1 Stock J = 0,4103
1,23x + 0,84 - 0,84x = 1 Stock K = 0,5897
1,23x - 0,84x = 0,16
0,39x = 0,16
x = 0,16/0,39
x = 0,4103
The expected return of the portfolio it's defined by the weight of each stock and the expected return.
Stock J 13,25% 0,5047 6,69%
Stock K 10,60% 0,4953 5,25%
Portfolio 1,00 11,94%