You own a stock portfolio invested 15 percent in Stock Q, 20 percent in Stock R, 5 percent in Stock S, and 60 percent in Stock T. The betas for these four stocks are 0.71, 0.99, 0.53, and 0.63, respectively. What is the portfolio beta? |
Beta of portfolio = sum of weighted average beta of individual stock | ||||
computation of portfolio beta - | ||||
Stock | weight | beta | Weight * Beta | |
Q | 15% | 0.71 | 0.11 | |
R | 20% | 0.99 | 0.20 | |
S | 5% | 0.53 | 0.03 | |
T | 60% | 0.63 | 0.38 | |
Total | 100% | 0.71 | ||
Therefore portfolio beta = | 0.71 | |||
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