CJed3.Chapter9
Transcript of CJed3.Chapter9
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Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill/Irwin
9Interest Rates
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Interest Rates
� Our goal in this chapter is to discuss the many differentinterest rates that are commonly reported in thefinancial press.
� We will also:± Find out how different interest rates are calculated and quoted,
and± Discuss theories of what determines interest rates.
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U.S. Interest Rate History
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Money Market Interest Rates
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Money Market Rates, I.
Prime rate - The basic interest rate on short-term loansthat the largest commercial banks charge to their mostcreditworthy corporate customers.
Bellwether rate - Interest rate that serves as a leader or as a leading indicator of future trends, e.g. inflation.
Federal funds rate - Interest rate that banks chargeeach other for overnight loans of $1 million or more.
Discount rate - The interest rate that the Fed offers tocommercial banks for overnight reserve loans.
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Money Market Rates, II.
C all money rate - The interest rate brokerage firms payfor call money loans from banks. This rate is used asthe basis for customer rates on margin loans.
C ommercial paper - Short-term, unsecured debt
issued by the largest corporations.
C ertificate of deposit ( C D) - Large-denominationdeposits of $100,000 or more at commercial banks for aspecified term.
Banker¶s acceptance - A postdated check on which abank has guaranteed payment. Commonly used tofinance international trade transactions.
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Money Market Rates, III.
L ondon Eurodollars - Certificates of depositdenominated in U.S. dollars at commercial banks inLondon.
L ondon Interbank Offered Rate ( L IBOR) - Interestrate that international banks charge one another for overnight Eurodollar loans.
U.S. Treasury bill (T-bill) - A short-term U.S.government debt instrument issued by the U.S.Treasury.
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Money Market Prices and Rates
� A Pure Discount Security is an interest-bearing asset:± It makes a single payment of face value at maturity .± It makes no payments before maturity .
There are several different ways market participantsquote interest rates.± Banker¶s Discount Basis± Bond Equivalent Yields (BEY)± Annual Percentage Rates (APR)± Effective Annual Rates (EAR)
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The Bank Discount Basis
� The Bank Discount Basis is a method of quotinginterest rates on money market instruments.± It is commonly used for T-bills and banker¶s acceptances.
� The formula is:
± Note that we use 360 days in a year in this (and many other)money market formula.
± The term ³discount yield´ here simply refers to the quotedinterest rate.
¹º¸
©ª¨! YieldDiscountx
360MaturitytoDays
1xValueFacePrice Current
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Example: Calculating a PriceUsing a Bank Discount Rate
� Suppose a banker¶s acceptance that will be paid is 60days has a face value of $1,000,000.� If the discount yield is 3%, what is the current price of
the banker¶s acceptance?
$99 ,000.
0.00- 1 $1,000,000
36060
1 $1,000,000
yieldDiscount 360
maturitytoDays1 alueacePrice Current
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03.0
R emember tomultiply beforeyou subtract.
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Treasury Bill Prices,March 20, 2003
� Look at Figure 9.3 for the T-bill that expires on October 9, 2003.± It has 142 days to maturity.± The ask discount is 1.03 (you use this to calculate the ask
price, i.e., the price you will pay for the T-bill)
± Prices are quoted for $1,000,000 face values.
0.$99 ,93 .2
0.0040 3- 1 $1,000,000
3 0142
1 $1,000,000
yieldiscount 3 0
maturitytoays1 alueFacePrice bill-T urrent
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0103.0
Verify that the bid priceis $995,897.80
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Bond Equivalent Yields
� Bond Equivalent Yields (BEY) are another way to quotean interest rate.� You can convert a bank discount yield to a bond
equivalent yield using this formula:
N ote that this formula is correct only for maturities of six months or less.Moreover, if February 29 occurs within the next 12 months, use 366 days.
yieldiscountmaturitytoaysyieldiscount
BEY !
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Example I: Bond Equivalent Yield
� Look at Figure 9.3 for the T-bill that expires on October 9, 2003.± It has 142 days to maturity.± The ask discount is 1.03.± What is the Bond Equivalent Yield?
1.05%. about or 0.010486,
0.01031423600.0103365
BEY
yieldDiscountxmaturitytoDays360yieldDiscountx365BEY
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R emember tomultiply beforeyou subtract.
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Example II: Calculating T-bill PricesUsing Bond Equivalent Yield
� We can calculate a Treasury bill asked price using the asked yield,which is a bond equivalent yield.� Look at Figure 9.3 for the T-bill that expires on October 9, 2003.
± It has 142 days to maturity.± The ask yield is 1.05.
2.995,931.6
1.0040 51,000,000
142/365 0.0105 11,000,000
365 aturity / to ays YieldEquivalend Bond 1alueFace Price Bill
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N ote: The price differs from a previousslide by about $6 due to rounding.
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More Ways to Quote Interest Rates
³ Simple´ interest basis - Another method to quoteinterest rates.± Calculated just like annual p e rc e ntag e rat e s (APRs).± Used for CDs.± The bond equivalent yield on a T-bill with less than six months
to maturity is also an APR.
� An APR understates the true interest rate, which isusually called the effective annual rate (EAR) .
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Example: The BEY on a T-billis Really Just an APR
� Earlier, using the ask discount rate, we calculated anasking price for a 142-day T-bill to be $995,937.20.± At maturity, this T-bill will be worth $1,000,000.± Therefore, you earn $4,062.80 of interest on an investment of
$995,937.20 over 142 days, a percentage return of 0.4079%.± In a 365-day year, there are 365/142 = 2.5704 periods of 142
days in length.± 0.4079 times 2.5704 is 1.0484%.
� This is the bond equivalent yield that we calculatedbefore (actually, it was 1.0486%)
B ut, The Wall Street Journal rounds to 2 decimal places.
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Converting APRs to EARs
� In general, if we let m be the number of periods in ayear, an APR can be converted to an EAR as follows:
� EARs are sometimes called effective annual yields,effective yields, or annualized yields.
m
mAPR1EAR1 ¹
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ª¨!
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Example I: What is the EAR of this T-bill¶s BEY (aka APR)?
0.4084%. EAR the so,
1.004084
1.001587
2.57040.0040791 EAR 1
mAPR1EAR1
2.5704
m
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57 04.2
N ote that when interest rates are low, the AP R will be close to the EA R .
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Example II: Converting CreditCard APRs to EARs
� Some Credit Cards quote an APR of 18%.± 18% is used because 18 = 12 times 1.50± That is, the monthly rate is really 1.50%.± What is the EAR?
19.5 %. EAR the so,
1.195
1.015
120.181 EAR 1
m
APR1EAR1
12
m
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O uch.
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Rates and Yields on Fixed-Income Securities
� Fixed-income securities include long-term debtcontracts from a wide variety of issuers:± The U.S. government,± Real estate purchases (mortgage debt),± Corporations, and± Municipal governments
� When issued, fixed-income securities have a maturity of
greater than one year.
� When issued, money market securities have a maturityof less than one year.
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The Treasury Yield Curve
� The T r e asury yi e ld curv e is a plot of Treasury yieldsagainst maturities.
� It is fundamental to bond market analysis, because itrepresents the interest rates for default-free lendingacross the maturity spectrum.
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Example: The Treasury Yield Curve
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Yield Comparisons
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The Term Structure of Interest Rates, I.
� The term structure of interest rates is the relationshipbetween time to maturity and the interest rates for default-free, pure discount instruments.
� The term structure is sometimes called the ³z e
rocoupon yi e ld curv e ´ to distinguish it from the Treasuryyield curve, which is based on coupon bonds.
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The Term Structure of Interest Rates, II.
� The term structure can be seen by examining yields onU.S. Treasury STRIPS.
� STRIPS are pure discount instruments created by³stripping´ the coupons and principal payments of U.S.Treasury notes and bonds into separate parts,which arethen sold separately.
� The term STRIPS stands for Separate Trading of Registered Interest and Principal of Securities.
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U.S. Treasury STRIPS
� An asked yield for a U.S. Treasury STRIP is an APR,calculated as two times the true semiannual rate.
� Recall:
� Therefore, for STRIPS:
r alueuturealue Present !
2M
2YTM
ValueacePriceSTRIPS !
M is the number of years to maturity.
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U.S. Treasury STRIPS
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Example: Pricing U.S. Treasury STRIPS, I.
� Let¶s verify the price of the May 2013 Strip.± The ask quote is 68:24, or $68.75.± The ask YTM is 3.79%.± Matures in about 10 years from the time of the quote
± Close.
$68.70. 1.4556100
2
0.03791
100
20.03791
100
2YTM1
ValueFacePriceSTRIPS
102
1022M
!!!
!!
v
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Example: Pricing U.S. Treasury STRIPS, II.
� Let¶s calculate the YTM from the quoted price.
� Close again.
? A 3. . or . 3 3, 11.
1.
1 1Price STRIPS
alueaceYTM
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Nominal versus Real Interest Rates
N ominal interest rates are interest rates as they areobserved and quoted, with no adjustment for inflation.
R eal interest rates are adjusted for inflation effects.
R eal interest rate = nominal interest rate ± inflation rate
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Inflation Rates and T-bill Rates
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Traditional Theories of the Term Structure
Expectations Theory : The term structure of interestrates reflects financial market beliefs about futureinterest rates.
M arket Segmentation Theory : Debt markets aresegmented by maturity, so interest rates for variousmaturities are determined separately in each segment.
M aturity Preference Theory : Long-term interest rates
contain a maturity premium necessary to inducelenders into making longer term loans.
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Problems with Traditional Theories
Expectations Theory ± The term structure is almost always upward sloping, but
interest rates have not always risen.
± It is often the case that the term structure turns down at verylong maturities.
Maturity Preference Theory
± The U.S. government borrows much more heavily short-termthan long-term.
± Many of the biggest buyers of fixed-income securities, such aspension funds, have a strong preference for long maturities.
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Problems with Traditional Theories
Market Segmentation Theory
± The U.S. government borrows at all maturities.
± Many institutional investors, such as mutual funds, are morethan willing to move maturities to obtain more favorable rates.
± There are bond trading operations that exist just to exploitperceived premiums, even very small ones.
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Modern Term Structure Theory, I.
� Long-term bond prices are much more sensitive tointerest rate changes than short-term bonds. This iscalled interest rate risk .
� So, the modern view of the term structure suggeststhat:
NI = RI + IP + RP
� In this equation:
NI = Nominal interest rateRI = Real interest rateIP = Inflation premiumRP = Interest rate risk premium
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Modern Term Structure Theory, II.
� The previous equation showed the component of interest rates on default-free bonds that trade in a liquidmarket.
� Not all bonds do.
� Therefore, a liquidity premium ( L P) and a default premium (DP) must be added to the previous equation:
NI = RI + IP + RP + LP + DP
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Useful Internet Sites
www.money-rates.com (latest money market rates)www.bba.org.uk (learn more about LIBOR)www.govpx.com (price and yield data for U.S.
Treasuries)www.bondmarkets.com (fixed income securities)www.bloomberg.com (current U.S. Treasury rates)www.smartmoney.com/bonds (view a ³living yield
curve´ *exceptional*)www.publicdebt.treas.gov (information on STRIPS, andother U.S. debt)
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Chapter Review, I.
� Interest Rate History and Money Market Rates± Interest Rate History± Money Market Rates
� Money Market Prices and Rates± Bank Discount Rate Quotes± Treasury Bill Quotes± Bank Discount Yields versus Bond Equivalent Yields
± Bond Equivalent Yields, APRs, and EARs
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Chapter Review, II.
� Rates and Yields on Fixed-Income Securities± The Treasury Yield Curve± Rates on Other Fixed-Income Investments
� The Term Structure of Interest Rates± Treasury STRIPS± Yields for U.S. Treasury STRIPS
� Nominal versus Real Interest Rates± Real Interest Rates± The Fisher Hypothesis
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Chapter Review, III.
� Traditional Theories of the Term Structure± Expectations Theory± Maturity Preference Theory± Market Segmentation Theory
� Determinants of Nominal Interest Rates: A ModernPerspective± Problems with Traditional Theories
± Modern Term Structure Theory± Liquidity and Default Risk