Answer:
The new beta of the portfolio 1.17
Explanation:
Portfolio beta is sum of weighted beta of all stocks consisting of it.
Portfolio beta = 1.12
Weight of each portfolio = 5,000
All weight or Amount = 5,000 * 20 = 100,000
Weight of one stock = 5,000 / 100,000 = 0.05
Foregone beta or beta of sold stock = 1
Acquired beta or beta of purchased stock = 2
Weight of both are same = 0.05
New beta = Portfolio beta - (foregone beta * weight) + (Acquired beta * weight)
New beta = 1.12 - (1 * 0.05) + (2 * 0.05)
New beta = 1.12 - 0.05 + 0.1
New beta = 1.17
So New portfolio beta is 1.17
