Investments and Valuation: cram pack

Formula sheets, the key method steps for every topic and 8 practice problems, with full solutions at the back.

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1Formulas and methods

Time value of money

Future value
FV = PV·(1 + i)n
Present value
PV = FV/(1 + i)n
Several periods per year
i = r/m, N = m·n
Annuity, present value
PV = PMT·[1 − (1 + i)−n]/i
Annuity, future value
FV = PMT·[(1 + i)n − 1]/i

Method

  1. Draw a timeline with every cash flow and its timing.
  2. Match the rate to the period: a monthly rate for monthly payments.
  3. Use FV = PV·(1 + i)ⁿ for single amounts and the annuity formulas for equal payments.
  4. Check the sign and the order of magnitude of the answer.

Bond pricing & yield

Bond price
P = C·(1 − (1 + y)−n)/y + F/(1 + y)n
Semi-annual
C/2, y/2 and 2n periods
Current yield
C/P
Price and yield
yield up → price down

Method

  1. Find the coupon per period and the yield per period.
  2. Price = present value of the coupons (an annuity) + present value of the face value.
  3. For semi-annual coupons use half the coupon, half the yield and twice the periods.
  4. Check: if the yield is above the coupon rate, the price is below face value.

CAPM & WACC

CAPM
re = rf + β·(rm − rf)
WACC
E/V·re + D/V·rd·(1 − T)
Firm value
V = E + D

NPV & IRR

Net present value
NPV = −C0 + Σ CFt/(1 + r)t
Equal cash flows
NPV = −C0 + CF·[1 − (1 + r)−n]/r
Internal rate of return
the r at which NPV = 0
Decision
accept when NPV > 0 (or IRR > required return)

Method

  1. List all cash flows with their year; the investment at year 0 is negative.
  2. Discount each cash flow: CFt/(1 + r)t.
  3. Add them up to get the NPV. Positive means the project earns more than r.
  4. For the IRR, find the rate that makes NPV zero by trial or interpolation.

2Practice problems

1.Time value of moneyMedium
years012345PV = ?€15 000

You need €15 000 in 5 years. An account pays 3.6% per year, compounded monthly. How much must you deposit today? Find the present value PV.

FV = €15 0003.6% / 12n = 5
PV = €
2.Time value of moneyHard
months0123…60€25 000A?AAA

A loan of €25 000 is repaid with equal monthly payments over 5 years. The interest rate is 5.4% per year, compounded monthly. Find the monthly payment A.

P = €25 0005.4% / 12N = 60
A = €
3.Bond pricing & yieldMedium
half-years0123…24€15€15€15 + €1 000P = ?

A bond with a face value of €1 000 pays a 3% annual coupon in two half-yearly payments and matures in 12 years. The yield to maturity is 5% per year. Find the price P of the bond.

F = €1 000coupon = 3%YTM = 5%n = 12
P = €
4.Bond pricing & yieldHard
years0123456€1 281€80€80€80 + €1 080

A bond with 18 years to maturity (face value €1 000, annual coupon 8%) sells for €1 281. The issuer can call it in 6 years at a call price of €1 080. Find the yield to call YTC in percent.

F = €1 000coupon = 8%P = €1 281call price = €1 080call in 6 years
YTC = %
5.CAPM & WACCMedium
WACC = ?ordinary shares€10 000 000re​ = 11%preferred shares€1 500 000rp​ = 6%debt€5 000 000rd​ = 4.5%T = 25%

A company is financed with ordinary shares worth €10 000 000, preferred shares worth €1 500 000 and debt worth €5 000 000. The cost of equity is 11%, the cost of preferred stock 6% and the pre-tax cost of debt 4.5%. The tax rate is 25%. Find the WACC.

E = €10 000 000Ps = €1 500 000D = €5 000 000re = 11%rp = 6%rd = 4.5%T = 25%
WACC = %
6.CAPM & WACCHard
WACC = ?equity1 000 000 × €52.50D0​ = €2.00g = 4%debt€15 800 000rd​ = 4.5%T = 25%

A company has 1 000 000 shares trading at €52.50; the book value of its equity is €21 000 000. It just paid a dividend of €2.00 per share, and dividends grow by 4% per year. Its debt has a market value of €15 800 000 and a pre-tax cost of 4.5%. The tax rate is 25%. Find the WACC, using the dividend growth model for the cost of equity.

N = 1 000 000P0 = €52.50book equity = €21 000 000D0 = €2.00g = 4%D = €15 800 000rd = 4.5%T = 25%
WACC = %
7.NPV & IRRMedium
years01234−75 00018 00016 00020 00021 000

An investment of €75 000 gives these cash flows at the end of years 1 to 4: €18 000, €16 000, €20 000, €21 000. The cost of capital is 12%. Find the net present value NPV.

r = 12%CF0 = −75 000CF1 = 18 000CF2 = 16 000CF3 = 20 000CF4 = 21 000
NPV = €
8.NPV & IRRHard
years0123…9−20 0005 0005 0005 0005 000

An investment of €20 000 returns €5 000 at the end of each year for 9 years. Find its internal rate of return IRR in percent.

C0 = €20 000CF = €5 000n = 9
IRR = %

3Solutions

1.Time value of money

Answer: PV = 12532 €

Time value of money: money today is worth more than the same amount later, because it can earn interest. With interest rate i per period, an amount grows as FV = PV·(1 + i)n. A series of equal payments (an annuity) is valued by adding up each payment, which gives the annuity formulas.

Rate and number of periods

i = 0.036000000000000004/12 = 0.003
N = 12·5 = 60

Present value

PV = FV/(1 + i)N = 15 000/1.197 = €12 532.43

Answer

PV = €12 532.43
2.Time value of money

Answer: A = 476.4 €

Time value of money: money today is worth more than the same amount later, because it can earn interest. With interest rate i per period, an amount grows as FV = PV·(1 + i)n. A series of equal payments (an annuity) is valued by adding up each payment, which gives the annuity formulas.

Monthly rate and number of payments

i = 0.054000000000000006/12 = 0.0045
N = 12·5 = 60

Payment

The present value of N equal payments A is A·(1 − (1 + i)⁻ᴺ)/i. Set it equal to the loan and solve for A.

(1 + i)−N = 0.7638
A = 25 000·0.0045/(1 − 0.7638) = €476.38

Answer

A = €476.38
3.Bond pricing & yield

Answer: P = 821.2 €

Bond pricing: a bond’s price is the present value of its cash flows, discounted at the yield to maturity (YTM): the coupons form an annuity and the face value is paid back at maturity. P = C·(1 − (1 + y)⁻ⁿ)/y + F/(1 + y)ⁿ. When the yield is above the coupon rate the bond trades below face value, and the other way round.

Per period

C = €15.00, i = 0.025, N = 24

Present value of the coupons

€15.00·(1 − 0.5529)/0.025 = €268.27

Present value of the face value

€1 000·0.5529 = €552.88

Price

P = €821.15

Answer

P = €821.15

The yield is above the coupon rate, so the bond sells at a discount.

4.Bond pricing & yield

Answer: YTC = 3.872 %

Bond pricing: a bond’s price is the present value of its cash flows, discounted at the yield to maturity (YTM): the coupons form an annuity and the face value is paid back at maturity. P = C·(1 − (1 + y)⁻ⁿ)/y + F/(1 + y)ⁿ. When the yield is above the coupon rate the bond trades below face value, and the other way round.

Equation for the yield

1281 = 80·(1 − (1 + y)−6)/y + 1080/(1 + y)6

Solve numerically

y = 3%: €1 337.86
y = 4%: €1 272.91
YTC = 3.872%

Answer

YTC = 3.872%

The yield to maturity is 5.501%. Investors in a premium bond expect it to be called, so the lower yield to call is the more realistic one.

5.CAPM & WACC

Answer: WACC = 8.235 %

Cost of capital: CAPM gives the return shareholders require: re = rf + β·(rm − rf). The weighted average cost of capital mixes equity and debt by their market values: WACC = E/V·re + D/V·rd·(1 − T), with V = E + D. Interest is tax-deductible, hence the (1 − T).

Weights

V = 10 000 000 + 1 500 000 + 5 000 000 = €16 500 000
E/V = 0.6061, Ps/V = 0.09091, D/V = 0.303

WACC

WACC = 0.6061·11% + 0.09091·6% + 0.303·4.5%·(1 − 0.25) = 8.235%

Answer

WACC = 8.235%
6.CAPM & WACC

Answer: WACC = 6.901 %

Cost of capital: CAPM gives the return shareholders require: re = rf + β·(rm − rf). The weighted average cost of capital mixes equity and debt by their market values: WACC = E/V·re + D/V·rd·(1 − T), with V = E + D. Interest is tax-deductible, hence the (1 − T).

Cost of equity

D1 = 2·1.04 = €2.08
re = 2.08/52.5 + 0.04 = 7.962%

Market values

E = 1 000 000·€52.50 = €52 500 000
V = €68 300 000, E/V = 0.7687, D/V = 0.2313

WACC

WACC = 0.7687·7.962% + 0.2313·4.5%·(1 − 0.25) = 6.901%

Answer

WACC = 6.901%
7.NPV & IRR

Answer: NPV = −18592 €

Net present value: discount every cash flow back to today with the required rate of return r, then add them up: NPV = Σ CFₜ/(1 + r)ᵗ. A project with NPV > 0 earns more than r and adds value. The internal rate of return (IRR) is the rate at which NPV = 0.

Present value of each cash flow

CF0 = −75 000
CF1/(1 + 0.12)1 = 18 000/1.12 = 16 071.43
CF2/(1 + 0.12)2 = 16 000/1.254 = 12 755.10
CF3/(1 + 0.12)3 = 20 000/1.405 = 14 235.60
CF4/(1 + 0.12)4 = 21 000/1.574 = 13 345.88

Add them up

NPV = €−18 591.98

Answer

NPV = €−18 591.98

NPV is negative, so the project earns less than the required return.

8.NPV & IRR

Answer: IRR = 20.24 %

Net present value: discount every cash flow back to today with the required rate of return r, then add them up: NPV = Σ CFₜ/(1 + r)ᵗ. A project with NPV > 0 earns more than r and adds value. The internal rate of return (IRR) is the rate at which NPV = 0.

Required annuity factor

(1 − (1 + i)−9)/i = 20 000/5 000 = 4

Solve for the rate

The annuity factor falls as the rate rises; bracket the rate and narrow down.

i = 20%: 4.031
i = 21%: 3.905
IRR = 20.24%

Answer

IRR = 20.24%

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