A stock has a beta of 1.38 and an expected return of 13.6 percent. If the risk-free rate is 4.7 percent, 1)what is the expected return on a portfolio that is equally invested in the two assets? 2. if a portfolio of the assets has a beta of 0.98, what are the portfolio weights? 3. if a portfolio of the two assets has an expected return of 12.8 percent, what is its beta? 4. If a portfolio of the two assets has a beta of 2.58, what are the portfolio weights?
A stock has a beta of 1.38 and an expected return of 13.6 percent. If the risk-free rate is 4.7 percent, 1)what is the expected return on a portfolio that is equally invested in the two assets? 2. if a portfolio of the assets has a beta of 0.98, what are the portfolio weights? 3. if a portfolio of the two assets has an expected return of 12.8 percent, what is its beta? 4. If a portfolio of the two assets has a beta of 2.58, what are the portfolio weights?
Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
Problem 1PS
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Capital Asset Pricing Model
Capital asset pricing model, also known as CAPM, shows the relationship between the expected return of the investment and the market at risk. This concept is basically used particularly in the case of stocks or shares. It is also used across finance for pricing assets that have higher risk identity and for evaluating the expected returns for the assets given the risk of those assets and also the cost of capital.
Question
![### Understanding Portfolio Investments and Beta
#### Problem Statement:
A stock has a beta of 1.38 and an expected return of 13.6 percent. The risk-free rate is 4.7 percent. Based on this information, we have the following questions:
1. What is the expected return on a portfolio that is equally invested in two assets?
2. If a portfolio of the assets has a beta of 0.98, what are the portfolio weights?
3. If a portfolio of the two assets has an expected return of 12.8 percent, what is its beta?
4. If a portfolio of the two assets has a beta of 2.58, what are the portfolio weights?
#### Understanding the Concepts:
1. **Expected Return with Equal Investment**:
To find the expected return on a portfolio equally invested in two assets, we need to consider the formula for the expected return of a portfolio:
\[
E(R_p) = w_1 \cdot E(R_1) + w_2 \cdot E(R_2)
\]
Where:
- \(E(R_p)\) is the expected return of the portfolio.
- \(w_1\) and \(w_2\) are the weights of the investments in the two assets.
- \(E(R_1)\) and \(E(R_2)\) are the expected returns of the two assets.
If the investment is equal in both assets, \(w_1 = w_2 = 0.5\).
2. **Portfolio Weights Based on Beta**:
To determine the portfolio weights when given a specific portfolio beta, we use the following relationship:
\[
\beta_p = w_1 \cdot \beta_1 + w_2 \cdot \beta_2
\]
Where:
- \(\beta_p\) is the portfolio beta.
- \(w_1\) and \(w_2\) are the weights of the investments in the two assets.
- \(\beta_1\) and \(\beta_2\) are the betas of the two assets.
3. **Portfolio Beta Based on Expected Return**:
The Capital Asset Pricing Model (CAPM) helps us to relate the expected return to the beta:
\[
E(R_i) = R_f](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce618159-930e-4ade-8eed-109751c2dc39%2Fc0bb3596-7dfa-4ec2-a6da-b210b70510af%2Ffm8xyg.png&w=3840&q=75)
Transcribed Image Text:### Understanding Portfolio Investments and Beta
#### Problem Statement:
A stock has a beta of 1.38 and an expected return of 13.6 percent. The risk-free rate is 4.7 percent. Based on this information, we have the following questions:
1. What is the expected return on a portfolio that is equally invested in two assets?
2. If a portfolio of the assets has a beta of 0.98, what are the portfolio weights?
3. If a portfolio of the two assets has an expected return of 12.8 percent, what is its beta?
4. If a portfolio of the two assets has a beta of 2.58, what are the portfolio weights?
#### Understanding the Concepts:
1. **Expected Return with Equal Investment**:
To find the expected return on a portfolio equally invested in two assets, we need to consider the formula for the expected return of a portfolio:
\[
E(R_p) = w_1 \cdot E(R_1) + w_2 \cdot E(R_2)
\]
Where:
- \(E(R_p)\) is the expected return of the portfolio.
- \(w_1\) and \(w_2\) are the weights of the investments in the two assets.
- \(E(R_1)\) and \(E(R_2)\) are the expected returns of the two assets.
If the investment is equal in both assets, \(w_1 = w_2 = 0.5\).
2. **Portfolio Weights Based on Beta**:
To determine the portfolio weights when given a specific portfolio beta, we use the following relationship:
\[
\beta_p = w_1 \cdot \beta_1 + w_2 \cdot \beta_2
\]
Where:
- \(\beta_p\) is the portfolio beta.
- \(w_1\) and \(w_2\) are the weights of the investments in the two assets.
- \(\beta_1\) and \(\beta_2\) are the betas of the two assets.
3. **Portfolio Beta Based on Expected Return**:
The Capital Asset Pricing Model (CAPM) helps us to relate the expected return to the beta:
\[
E(R_i) = R_f
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