bond calculation formula
TRANSCRIPT
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Chapter 6Interest Rates
And BondValuation
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Learning Goals
1. Describe interest rate fundamentals, the term structure
of interest rates, and risk premiums.
2. Review the legal aspects of bond financing and bondcost.
3. Discuss the general features, yields, prices, popular
types, and international issues of corporate bonds.
4. Understand the key inputs and basic model used in thevaluation process.
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Learning Goals (cont.)
5. Apply the basic valuation model to bonds and
describe the impact of required return and time
to maturity on bond values.6. Explain the yield to maturity (YTM), its
calculation, and the procedure used to value
bonds that pay interest semiannually.
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Interest Rates & Required Returns
The interest rate orrequired return represents theprice of money.
The Board of Governors of the Federal ReserveSystem initiate actions to change interest rates tocontrol inflation and economic growth.
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Interest Rates & Required Returns:Interest Rate Fundamentals
Interest rates represent the compensation that ademander of funds must pay a supplier.
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Interest Rates & Required Returns:The Real Rate of Interest
The real interest rate is the rate that creates anequilibrium between the supply of savings and thedemand for investment funds in a perfect world.
Perfect world no inflation, no liquidity preference,and where all outcomes are certain.
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Interest Rates & Required Returns:The Real Rate of Interest (cont.)
Figure 6.1 SupplyDemand Relationship
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Interest Rates & Required Returns:Inflation and the Cost of Money
The risk-free rate of interest, RF, which is typicallymeasured by a 3-month U.S. Treasury bill (T-bill)compensates investors only for the real rate of return
and for the expected rate of inflation.
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Interest Rates & Required Returns:Nominal or Actual Rate of Interest (Return)
The nominal rate of interest is the actual rate of
interest charged by the supplier of funds and paid by
the demander. The nominal rate differs from the real rate of interest,
k* as a result of two factors:
an inflation premium (IP)
a risk premium (RP).
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Interest Rates & Required Returns:Inflation and the Cost of Money (cont.)
Figure 6.2 Impact of Inflation
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Term Structure of Interest Rates
The term structure of interest rates relates the interest
rate to the time to maturity for securities with a
common default risk profile. Typically, treasury securities are used to construct yield
curves since all have zero risk of default.
However, yield curves could also be constructed with
AAA or BBB corporate bonds or other types of similarrisk securities.
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Term Structure of Interest Rates (cont.)
Figure 6.3 Treasury Yield Curves
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Theories of Term Structure: ExpectationsTheory
This theory suggest that the shape of the yield curve
reflects investors expectations about the future direction
of inflation and interest rates.
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Theories of Term Structure:Liquidity Preference Theory
This theory contends that long term interest rates tend
to be higher than short term rates for two reasons:
Risk borrowers prefer longer term funds
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Theories of Term Structure:Market Segmentation Theory
This theory suggests that the market for debt at
any point in time is segmented on the basis of
maturity. As a result, the shape of the yield curve will
depend on the supply and demand for a given
maturity at a given point in time.
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Corporate Bonds
A bond is a long-term debt instrument that pays the bondholder
a specified amount of periodic interest rate over a specified
period of time.
The bonds principal is the amount borrowed by the company
and the amount owed to the bond holder on the maturity date.
The bonds maturity date is the time at which a bond becomes
due and the principal must be repaid.
The bonds coupon rate is the specified interest rate (or $
amount) that must be periodically paid.
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Corporate Bonds (cont.)
The bonds current yield is the annual interest
(income) divided by the current price of the security.
The bonds yield-to-maturity is the yield (expressed asa compound rate of return) earned on a bond from the
time it is acquired until the maturity date of the bond.
A yield curve graphically shows the relationship
between the time to maturity and yields for debt in agiven risk class.
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Legal Aspects of Corporate Bonds
The bond indenture is a legal document
Standard debt provisions
Restrictive debt provisions
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Legal Aspects of Corporate Bonds (cont.)
Common restrictive covenants include provisions thatspecify: Minimum equity levels
Prohibition against factoring receivables
Fixed asset restrictions
Constraints on subsequent borrowing
Limitations on cash dividends.
In general, violations of restrictive covenants givebondholders the right to demand immediate repayment.
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Legal Aspects of Corporate Bonds(cont.)
Sinking fund requirements are restrictive provisionsoften included in bond indentures that provide for thesystematic retirement of bonds prior to their maturity.
The bond indenture identifies any collateral (security)pledged against the bond and specifies how it is to bemaintained.
A trustee is a paid individual, corporation, orcommercial bank trust department that acts as the thirdparty to a bond indenture.
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Corporate Bonds: General Features
The conversion feature ofconvertible bonds allowsbondholders to exchange their bonds for a specifiednumber of shares of common stock.
A call feature gives the issuer the opportunity torepurchase the bond prior to maturity at the call price.
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Corporate Bonds:General Features (cont.)
stock purchase warrants
Warrants give the bondholder the right to purchase a
certain number of shares of the same firms commonstock at a specified price during a specified period oftime.
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Corporate Bonds: Bond Yields
A bonds yield or rate of return is frequentlyused to assess its performance over a given
period, typically 1 year. The three most widely cited yields are:
Current yield
Yield to maturity (YTM)
Yield to call (YTC)
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Corporate Bonds: Bond Prices
Table 6.2 Data on Selected Bonds
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Corporate Bonds: Bond Ratings
Table 6.3 Moodys and Standard & Poors Bond Ratingsa
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Corporate Bonds:International Bond Issues
Companies and governments borrow internationally byissuing bonds in the Eurobond market and the foreignbond market.
A Eurobond is issued by an international borrower andsold to investors in countries with currencies other thanthe currency in which the bond is denominated.
In contrast, a foreign bond is issued in a host countrysfinancial market, in the host countrys currency, by a
foreign borrower.
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Valuation Fundamentals
The (market) value of any investment asset is simply the
present value of expected cash flows.
The interest rate that these cash flows are discounted at iscalled the assets required return.
The required return is a function of the expected rate of
inflation and the perceived riskof the asset.
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Basic Valuation Model
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Mills Company, a large defense contractor, on January 1,
2007, issued a 10% coupon interest rate, 10-year bond
with a $1,000 par value that pays interest semiannually.
Bond Valuation: Basic Bond Valuation
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Bond Valuation: Bond Fundamentals
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Bond Valuation:Bond Fundamentals (cont.)
Table 6.7 Bond Values for Various Required Returns(Mills Companys 10% Coupon Interest Rate, 10-YearMaturity, $1,000 Par, January 1, 2010, Issue Paying
Annual Interest)
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Bond Valuation:Bond Fundamentals (cont.)
Figure 6.4 Bond Values and Required Returns
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Bond Valuation:Bond Fundamentals (cont.)
Figure 6.5 Time to Maturity and Bond Values
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Yield to Maturity (YTM)
The yield to maturity measures the compound annualreturn to an investor and considers all bond cash flows.It is essentially the bonds IRR based on the current
price. Note that the yield to maturity will only be equal if the
bond is selling for its face value ($1,000).
And that rate will be the same as the bonds coupon
rate. For premium bonds, the current yield > YTM.
For discount bonds, the current yield < YTM.
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Yield to Maturity (YTM): SemiannualInterest and Bond Values
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Current = Annual Coupon InterestYield Current Market Price
For example, a 10% coupon bond which is currently
selling at $1,150 would have a current yield of:
Current = $100 = 8.7%
Yield $1,150
Current Yield
The Current Yield measures the annual return to an
investor based on the current price.