Question 308 risk, standard deviation, variance, no explanation
A stock's standard deviation of returns is expected to be:
- 0.09 per month for the first 5 months;
- 0.14 per month for the next 7 months.
What is the expected standard deviation of the stock per year ##(\sigma_\text{annual})##?
Assume that returns are independently and identically distributed (iid) and therefore have zero auto-correlation.
Question 382 Merton model of corporate debt, real option, option
In the Merton model of corporate debt, buying a levered company's shares is equivalent to:
Question 419 capital budgeting, NPV, interest tax shield, WACC, CFFA, CAPM, no explanation
| Project Data | ||
| Project life | 1 year | |
| Initial investment in equipment | $6m | |
| Depreciation of equipment per year | $6m | |
| Expected sale price of equipment at end of project | 0 | |
| Unit sales per year | 9m | |
| Sale price per unit | $8 | |
| Variable cost per unit | $6 | |
| Fixed costs per year, paid at the end of each year | $1m | |
| Interest expense in first year (at t=1) | $0.53m | |
| Tax rate | 30% | |
| Government treasury bond yield | 5% | |
| Bank loan debt yield | 6% | |
| Market portfolio return | 10% | |
| Covariance of levered equity returns with market | 0.08 | |
| Variance of market portfolio returns | 0.16 | |
| Firm's and project's debt-to-assets ratio | 50% | |
Notes
- Due to the project, current assets will increase by $5m now (t=0) and fall by $5m at the end (t=1). Current liabilities will not be affected.
Assumptions
- The debt-to-assets ratio will be kept constant throughout the life of the project. The amount of interest expense at the end of each period has been correctly calculated to maintain this constant debt-to-equity ratio.
- Millions are represented by 'm'.
- All cash flows occur at the start or end of the year as appropriate, not in the middle or throughout the year.
- All rates and cash flows are real. The inflation rate is 2% pa.
- All rates are given as effective annual rates.
- The 50% capital gains tax discount is not available since the project is undertaken by a firm, not an individual.
What is the net present value (NPV) of the project?
Which of the following equations is NOT equal to the total return of an asset?
Let ##p_0## be the current price, ##p_1## the expected price in one year and ##c_1## the expected income in one year.
Question 556 portfolio risk, portfolio return, standard deviation
An investor wants to make a portfolio of two stocks A and B with a target expected portfolio return of 12% pa.
- Stock A has an expected return of 10% pa and a standard deviation of 20% pa.
- Stock B has an expected return of 15% pa and a standard deviation of 30% pa.
The correlation coefficient between stock A and B's expected returns is 70%.
What will be the annual standard deviation of the portfolio with this 12% pa target return?
A trader buys one December futures contract on orange juice. Each contract is for the delivery of 10,000 pounds. The current futures price is $1.20 per pound. The initial margin is $5,000 per contract, and the maintenance margin is $4,000 per contract.
What is the smallest price change would that would lead to a margin call for the buyer?
Question 779 mean and median returns, return distribution, arithmetic and geometric averages, continuously compounding rate
Fred owns some BHP shares. He has calculated BHP’s monthly returns for each month in the past 30 years using this formula:
###r_\text{t monthly}=\ln \left( \dfrac{P_t}{P_{t-1}} \right)###He then took the arithmetic average and found it to be 0.8% per month using this formula:
###\bar{r}_\text{monthly}= \dfrac{ \displaystyle\sum\limits_{t=1}^T{\left( r_\text{t monthly} \right)} }{T} =0.008=0.8\% \text{ per month}###He also found the standard deviation of these monthly returns which was 15% per month:
###\sigma_\text{monthly} = \dfrac{ \displaystyle\sum\limits_{t=1}^T{\left( \left( r_\text{t monthly} - \bar{r}_\text{monthly} \right)^2 \right)} }{T} =0.15=15\%\text{ per month}###Assume that the past historical average return is the true population average of future expected returns and the stock's returns calculated above ##(r_\text{t monthly})## are normally distributed. Which of the below statements about Fred’s BHP shares is NOT correct?
Question 948 VaR, expected shortfall
Below is a historical sample of returns on the S&P500 capital index.
| S&P500 Capital Index Daily Returns Ranked from Best to Worst |
||
| 10,000 trading days from 4th August 1977 to 24 March 2017 based on closing prices. |
||
| Rank | Date (DD-MM-YY) |
Continuously compounded daily return (% per day) |
| 1 | 21-10-87 | 9.23 |
| 2 | 08-03-83 | 8.97 |
| 3 | 13-11-08 | 8.3 |
| 4 | 30-09-08 | 8.09 |
| 5 | 28-10-08 | 8.01 |
| 6 | 29-10-87 | 7.28 |
| … | … | … |
| 9980 | 11-12-08 | -5.51 |
| 9981 | 22-10-08 | -5.51 |
| 9982 | 08-08-11 | -5.54 |
| 9983 | 22-09-08 | -5.64 |
| 9984 | 11-09-86 | -5.69 |
| 9985 | 30-11-87 | -5.88 |
| 9986 | 14-04-00 | -5.99 |
| 9987 | 07-10-98 | -6.06 |
| 9988 | 08-01-88 | -6.51 |
| 9989 | 27-10-97 | -6.55 |
| 9990 | 13-10-89 | -6.62 |
| 9991 | 15-10-08 | -6.71 |
| 9992 | 29-09-08 | -6.85 |
| 9993 | 07-10-08 | -6.91 |
| 9994 | 14-11-08 | -7.64 |
| 9995 | 01-12-08 | -7.79 |
| 9996 | 29-10-08 | -8.05 |
| 9997 | 26-10-87 | -8.4 |
| 9998 | 31-08-98 | -8.45 |
| 9999 | 09-10-08 | -12.9 |
| 10000 | 19-10-87 | -23.36 |
| Mean of all 10,000: | 0.0354 | |
| Sample standard deviation of all 10,000: | 1.2062 | |
| Sources: Bloomberg and S&P. | ||
Assume that the one-tail Z-statistic corresponding to a probability of 99.9% is exactly 3.09. Which of the following statements is NOT correct? Based on the historical data, the 99.9% daily: