Investments - Math Practice Flashcards
Calculate the GMR of the following returns:
Year 1, 45% ; Year 2, -10% ; Year 3, -25% ; Year 4 30%
Answer: 6.21%
Calculate the IRR of the following problem:
A company has a required rate of return of 5%, should they make a $10 million investment that is expected to bring in $1 million of profit each year for 15 years?
Answer: 5.56%
Calculate Dollar-Weighted and Time-Weighted Returns for the following:
At the beginning of Year 1, an investor buys one share of Good Chips stock for $12. At the end of Year 1, the investor receives a dividend of $1 and buys another share of Good Chip stock for $16. At the end of Year 2, the investor sells both shares for $20 each.
Dollar-Weighted: 30.5%
CF0: –$12
CF1: $1 – $16 = –$15
CF2: $20 + $20 = $40
Time-Weighted: 33.3%
CF0: -$12
CF1: $1
CF2: $20
What is the dollar-weighted return of an investment portfolio with the following cash flows over the past 3 years?
Beginning of Year 1 – $50,000 deposit
End of Year 1 – $5,000 deposit
End of Year 2 – $25,000 withdrawal
End of Year 3 – $50,000 withdrawal
Answer: 12.84%
P/YR = 1
50,000
[+/-]
[CFj]
5,000
[+/-]
[CFj]
25,000
[CFj]
50,000
[CFj]
[SHIFT]
[IRR/YR]
Seth bought ABC stock for $21 per share 6 months ago. Seth sold ABC today for $29.40 per share. What is his annualized return?
Annualized return = ($29.4/$21)2 − 1 = (1.4)2 − 1 = 1.96 −1 = 0.96, or 96%
A CD offers 3% per quarter. What is its annualized return?
EXACT Answer - DO THE MATH ON YOUR CALCULATOR
Annualized return = (1.03)4 − 1 = 1.1255 −1 = 0.1255, or 12.55%
Calculate the standard deviation of the following returns by hand:
9%, -3%, 4%, 12%, 3%
Answer: 5.8%
- Find mean of returns
- Subtract each ret by mean
- Square each “return-mean”
- Add up Squared numbers
- Divide by n-1
Calculate the standard deviation of the following returns on your calculator:
5%, 9%, 1%, -2%, 7%
5, Σ+
9, Σ+
1,Σ+
2, +/-, Σ+
7, Σ+
SHIFT, 8 (Sx, Sy)
Calculate the expected return of the following portfolio:
Answer: 33.5%
According to the Capital Asset Pricing Model (CAPM), if the risk-free rate is 3% and the market portfolios expected return is 10%, what is the expected return of a stock with a beta of 0.7?
Answer: 7.9%
Expected return = rf + β (rm – rf)
Expected return = 3% + 0.7 (10% − 3%) = 3% + 0.7 (7%) = 3% + 4.9% = 7.9%
Glen is considering two portfolios: 1) Portfolio A with a return of 14 percent and a standard deviation of 14 percent and 2) Portfolio B with a return of 4 percent and a standard deviation of 7 percent. Assuming the correlation between A and B is 0.0 and Glen invests 70 percent in A and 30 percent in B, what range of returns should this portfolio produce 95 percent of the time?
A) Between 1% and 21%
B) Between -9% and 31%
C) Between -1% and 21%
D) Between -19% and 41%
The correct answer is (B).
Standard deviation:
=SQRT[(0.7² x 14² ) + (0.3² x 7² ) + 0]
=SQRT[(0.49 x 196) + (.09 x 49)]
=SQRT[96.04 + 4.41]
=SQRT[100.45]
=10.02% or about 10%
Expected return = (0.7 × 14%) + (0.3 × 4%) = 11%
As noted in Chapter 2, the 95 percent confidence interval equals two standard deviations from the mean. Therefore the range -9 percent to 31 percent is the correct answer.
Discount, Inc., expects to generate $100 million in operating cash flows during the next year. It estimates its long-term dividend growth rate to be 2%, and it has 50 million shares outstanding. What is the intrinsic value of Discount, Inc., if your required rate of return is 10%?
Answer: $25
Intrinsic value = Total market value / Outstanding Shares.
Total market value = Operating Cash Flow / (Required Rate of Return – Dividend Growth Rate)
Total market value = $100,000,000 / (0.10 − 0.02) = $100,000,000 / 0.08 = $1,250,000,000
Intrinsic value = $1,250,000,000 / 50,000,000 = $25
The Nacho Equity Fund has a beta of 1.44 and a standard deviation of 20.8%. It has returned 12.9% during the past year when the return on one-year Treasury bills has been 3.2%. The Sharpe Ratio of the Nacho Equity Fund is closest to:
Answer: 0.466
Sharpe = (Portfolio Return – Risk-Free Rate) / (Standard Deviation)
Sharpe = (12.9 – 3.2) / 20.8 = 0.466
The Southern Fund generated a return of 7% over the last year. The relevant market portfolio had a return of 10% and the risk-free return was 3%. Southern Fund’s beta is 0.6. The Jensen’s alpha for the fund is closest to:
Answer: -0.2
α = rp – [rf + βp × (rm – rf)]
α = 7 – [3 + 0.6 × (10 – 3)] = − 0.2
Last year, the risk-free rate was 2% and a tech sector index returned –10%. What is Jensen’s alpha for a tech mutual fund with a beta of 1.2 that returned –11% over the same period?
Answer: 1.4
α = rp – [rf + βp × (rm – rf)]
α = -11 – [2 + 1.2 × (-10 – 2)]
α = -11 - [2 + (1.2 x –12)]
α = -11 - [2 - 14.4] = -11 + 12.4 = 1.4
What is the Treynor ratio of a fund with a beta of 1.3 and a standard deviation of 15% if the fund returned -8% this year when the risk-free rate of return was 2%?
Answer: -7.69
Treynor ratio = (rp – rf) / β
Treynor ratio = (-8 – 2) / 1.3 = -7.7