a pure discount bond does not pay cupons until its maturity; c = 0:
DESCRIPTION
A PURE DISCOUNT BOND DOES NOT PAY CUPONS UNTIL ITS MATURITY; C = 0:. DURATION IS THE WIEGHTED AVERAGE OF COUPON PAYMENTS’ TIME PERIODS, t, WEIGHTED BY THE PROPORTION THAT THE DISCOUNTED CASH FLOW, PAID AT EACH PERIOD, IS OF THE CURRENT BOND PRICE. - PowerPoint PPT PresentationTRANSCRIPT
1
BOND FUTURES
We will study:
1.The Cash Market for bonds
2. Short-term bonds:
U.S Government T-Bills
Eurodollar time deposit rates.
3.U.S Government T-Bonds.
2
BONDS - THE CASH MARKET
DEFINITION A BOND IS A PROMISE TO PAY CERTAIN AMOUNTS ON PRESPECIFIED FUTURE DATES.
BOND PARAMETERS
P = THE BOND CASH PRICE
FV= THE FACE VALUE or THE PAR VALUE OF THE BOND
M = THE MATURITY DATE OF THE BOND, or THE END OF THE LAST PERIOD OF THE BOND’S LIFE.
t= THE TIME INDEX; t = 1,2,……, M.
Ct= THE CASH FLOW FROM THE BOND AT TIME PERIOD t. USUALLY, THE CASH FLOW IS ASSUMED TO OCCUR AT THE PERIOD’S END.
NORMALLY:
Ct= C for t = 1, …., M – 1 and CM= C + FV.
C IS CALLED THE COUPON OF THE BOND.
CR = THE COUPON RATE.
C = (CR)(FV) = THE $ AMOUNT OF THE COUPON.
3
EXAMPLE:
A 30 YEAR TREASURY BOND WITH FACE VALUE OF $1,000, PAYS ANNUAL COUPONS AT AN 8%.
THUS:
M=30;
FV = $1,000;
CR = 8%;
C = (.08)($1,000) = $80 for t= 1, 2, …29
and
C = $1,080 for t = 30.
An investor who buys this bond will receive $80 at the end of every year for the next 29 years and $1,080 at the end of the 30-th year.
4
EXAMPLE: THE SAME T-BOND PAYS COUPONS SEMMI ANNUALLY.
IN THIS CASE, WE HAVE NEW PARAMETERS:
m= THE NUMBER OF PAYMENT PERIODS EVERY YEAR.
N = THE NUMBER OF COUPON PAYMENTS.
Thus: M=30; m = 2; N = 60; FV = $1,000; CR = 8%; C = (.08/2)($1,000) = $40 for t= 1, 2, …59 and C = $1,040 for t = 60.
An investor who buys this bond will receive $40 every six months for the next 29.5 years, plus $1,040 at the end of the 30-th year.
DEFINITION: A PURE DISCOUNT BOND PAYS THE FV AT ITS MATURITY BUT PAYS NO COUPONS (C = 0) IN ANY OF THE INTERIM PERIODS.
5
P R I C I N G B O N D S : A B O N D W I T H M A T U R I T Y O F M Y E A R S W I T H C O U P O N S P A I D
A N N U A L L Y I S P R I C E D B Y :
.r)(1
MFV
r)(1M1
rC P
:solution form closed A
,r)(1
MFVM
1t r)(1t
C t P
t.allfor tr r is convention usual The
...;)3r)(12r)(11r(1
3C
)2r)(11r(12C
1r1
C 1 P
:CFs theof NPV theis P.M
1t r)(1t
tC P
r = T H E B O N D ’ S Y I E L D T O M A T U R I T Y . ( Y T M )
6
Mr)(1FVP
F O R A B O N D W I T H S E M I A N N U A L C O U P O N P A Y M E N T S :
2M)2r(1
FV2M
1t t)2r(1
2C
Ρ
A PURE DISCOUNT BOND DOES NOT PAY CUPONS UNTIL ITS MATURITY; C = 0:
7
E X A M P L E S :
M = 3 0 ; F V = $ 1 , 0 0 0 ; C R = 8 % P A I D S E M I A N N U A L L Y . = > C = ( . 0 8 ) 1 , 0 0 0 / 2 = $ 4 0 .
r = 1 0 %
70.810$05.1
000,105.11
05.
40
05.1
040,1
)05.1(
4060
6060
60
1
t
t
T H E S A M E B O N D W I T H A N N U A L C O U P O N P A Y M E N T S W O U L D B E P R I C E D :
46.811$1.1
000,11.11
1.1
8030
30
T H E B O N D I S S O L D A T A D I S C O U N T B E C A U S E T H E Y T M I S G R E A T E R T H A N T H E C R
r = 5 %
$1,463.631.025
1,0001.0251
.025
40P
6060
T H E S A M E B O N D A S A P U R E D I S C O U N T B O N D T B O N D W O U L D B E P R I C E D :
1 0 0 0
1 13 13 0
,
.$ 5 7 .
I F I T W E R E A C O N S U L W I T H A N N U A L C O U P O N S :
$800.1
80P
8
Q U O T E S A R E G I V E N B Y C O N V E N T I O N , U S I N G A D I S C O U N T Y I E L D , d , W H E R E :
D I S C O U N T = F A C E V A L U E - M A R K E T P R I C E :
FVPFV
t360d
FV$DISCOUNT
t360d
B O N D E Q U I V A L E N T Y I E L D ( B E Y ) :
dt360365d
1
360dt1
360365di
PPFV
t365i
9
E X A M P L E :
t = 9 0 d a y s
F V = $ 1 , 0 0 0 , 0 0 0
d = 1 1 %
(11.468%). .11468360
(.11)901
360
365(.11)i
.11468972,500
972,5001,000,000
90
365iBEY
11%.1190
360
1,000,000
972,5001,000,000d
$27,500.DISCOUNT1,000,000
)($DISCOUNT
90
360.11
1
10
D U R A T I O N D E F I N I T I O N :
.
Pr1
tC
D
M
1tt
t
O B S E R V E T H A T :
,t W
P
r1CtD
M
1tt
M
1t
tt
W h e r e :
: Durationof tioninterpreta
following the toleadsresult This
.P
r1/CW and 1W
tt
t
M
1tt
11
DURATION
IS THE WIEGHTED AVERAGE OF COUPON PAYMENTS’ TIME
PERIODS, t,
WEIGHTED BY THE PROPORTION THAT THE DISCOUNTED CASH
FLOW, PAID AT EACH PERIOD, IS OF THE CURRENT BOND PRICE.
12
DURATION INTERPRETED AS A MEASURE OF THE BOND PRICE
SENSITIVITY
.DP
r)(1tC
r1r)d(1
PdP
: yieldsg,Rearrangin
.r)(1
tC
r)P(1
r)(1
P
r)(1
r)d(1
dP
. r)(1
tC
r)(1
1
r)d(1
dP
dr
dP
:1ror r respect to withderivative Its
.r1
CP:price bond The
tt
tt
tt
M
1tt
t
13
TY. ELASTICI PRICE BONDTHED
YIELDTHE OF %Δ THE
PRICE BONDTHE OF %Δ THED
.
r1r)d(1
PdP
- D
: thatstatesresult final The
The negative sign merely indicates that D changes in opposite direction to the change in the yield, r.
Next we present a closed form formula to calculate duration of a bond:
14
09.11
6100
)1(.11.1)1(.
306
100)1(.30)1(.11.11.1
D230
230
E X A M P L E :r = 1 0 % = . 1F V = $ 1 0 0C = $ 6 = > C R = 6 %M = 3 0 = 1m = 1P = $ 6 2 . 2 9
N = N U M B E R O F P A Y M E N T S
m = C O U P O N P A Y M E N T S P E R Y E A R
Θ = F R A C T I O N O F Y E A R T O T H E N E X T C O U P O N P A Y M E N T
Θ 1 2 … . y e a r s
CFV2r1
N
mr1r
m1NΘ
CFV2r
mNr1
N
mr1)r(1
D
15
M 0 2 4 6 8 1 0 1 2 1 4 1 6
5 5 4 . 7 6 4 . 5 7 4 . 4 1 4 . 2 8 4 . 1 7 4 . 0 7 3 . 9 9 3 . 9 2
1 0 1 0 8 . 7 3 7 . 9 5 7 . 4 2 7 . 0 4 6 . 7 6 6 . 5 4 6 . 3 6 6 . 2 1
1 5 1 5 1 1 . 6 1 1 0 . 1 2 9 . 2 8 8 . 7 4 8 . 3 7 8 . 0 9 7 . 8 8 7 . 7 1
2 0 2 0 1 3 . 3 3 1 1 . 2 0 1 0 . 3 2 9 . 7 5 9 . 3 6 9 . 0 9 8 . 8 9 8 . 7 4
2 5 2 5 1 4 . 0 3 1 1 . 8 1 1 1 . 8 6 1 0 . 3 2 9 . 9 8 9 . 7 5 9 . 5 8 9 . 4 5
3 0 3 0 1 4 . 0 3 1 1 . 9 2 1 1 . 0 9 1 0 . 6 5 1 0 . 3 7 1 0 . 1 8 1 0 . 0 4 9 . 9 4
3 5 3 5 1 3 . 6 4 1 1 . 8 4 1 1 . 1 7 1 0 . 8 2 1 0 . 6 1 1 0 . 4 6 1 0 . 3 6 1 0 . 2 8
4 0 4 0 1 3 . 1 3 1 1 . 7 0 1 1 . 1 8 1 0 . 9 2 1 0 . 7 6 1 0 . 6 5 1 0 . 5 7 1 0 . 5 1
5 0 5 0 1 2 . 1 9 1 1 . 4 0 1 1 . 4 0 1 0 . 9 9 1 0 . 9 1 1 0 . 8 5 1 0 . 8 1 1 0 . 7 8
1 0 0 1 0 0 1 1 . 0 2 1 1 . 0 1 1 1 . 0 0 1 1 . 0 0 1 1 . 0 0 1 1 . 0 0 1 1 . 0 0 1 1 . 0 0
C O M P U T I N G D U R A T I O N
r = 1 0 %
Coupon Rate
16
N O T I C E T H A T T H E C H A N G E I N T H E B O N D ’ S P R I C E M A Y B E E S T I M A T E D U S I N G D U R A T I O N , B Y :
r1
ΔrD)(P)(ΔΡ
E X A M P L E :
M = 3 0 ; C R = 6 % ; D = 1 1 . 0 9 a n d P = $ 6 2 . 2 9 .
r = 1 0 % r = 1 1 %
P P
r r = . 0 8
P = - ( 1 1 . 0 9 ) ( 6 2 . 2 9 ) ( - . 0 2 )1 . 1 P
1 1 0 9 6 2 2 90 11 1 6 2 8 1 0 1
1 0 %
1 2 5 6 1 8 5
. ..
. . $ 5 6 .
. $ 7 4 .
17
DURATION OF A BOND PORTFOLIO
V = The total bond portfolio value
Pi = The value of the i-th bond
Ni = The number of bonds of the i-th bond in the portfolio
Vi = Pi Ni = The total value of the i-th bond in the portfolio
V = ΣPiNi The total
portfolio value.
We now prove that: DP = ΣwiDi
.
18
:yields
,P
r1by deviding and gMultiplyin
.r)d(1
dPN
r)d(1
PNd
r)d(1
dV
: toleadsmaturity -to- yieldthe
respect to withV, value,portfolio
bond theof derivative the takingThus,
.V
r)(1
r)d(1
dV
r)(1r)d(1
VdV
D
:elasticity price bond theas dinterprete be
may durationsaw that already We
i
ii
ii
P
19
:or ,V
VD
V
r1DV
r1
1D
:have we,V
r1
r)d(1
dVD
intoresult this
ngSubstituti .DVr)(1
1
r)d(1
dV
:rewrite weThus, .VPN
whileduration, i sbond' of negative
thearebracket square thein termsThe
]P
r)(1
r)d(1
dP[PN
r)(1
1
:sign summation thein termsgRearrangin
.r)(1
P
P
r)(1
r)d(1
dPN
r)d(1
dV
ip
iiP
P
ii
iii
i
iii
i
i
ii
iD
20
iiP
ii
i
iiii
iiP
Dw D
duration protfolio the,conclusion in Thus,
.1w ;V
V w
: where
,DwDV
VDV
V
1 D
is the weighted average of the durations of the bonds in the portfolio. The weights are the proportions the bond value is of the entire portfolio value.
21
Example: Consider a portfolio of two T-bonds:BOND FV
in $M
N YTM
COUPON
T-BOND
$100
15yrs
6% 5%
T-BOND
$200
30yrs
6% 15%
BOND PRICE W DT-BOND $90.2
0.1673 10.4673
T-BOND
$449.1 539.3
0.8327 1.0000
12.4674
D= (.1673)(10.4673) +(.8327)(12.4674)
D = 12.1392
22
IMMUNIZING BANK PORTFOLIOOF
ASSETS AND LIABILITIES
TIME 0 ASSETSLIABIABILITIES
$100,000,000 $100,000,000 (LOANS) (DEPOSITS)
D = 5 D = 1r = 10% r = 10%
TIME 1 r => 12%
.82$1,818,1810100,000,001.1
(.02)1ΔV
.09$9,090,9090100,000,001.1
(.02)5ΔV
L
A
BUT IF DA = DL THEY REACT TO RATES CHANGES IN EQUAL AMOUNTS. THE BANK PORTFOLIO IS IMMUNIZED , i.e., IT’S VALUE WILL NOT CHANGE FOR A “small” INTEREST RATE CHANGE, IF THE PORTFOLIO’S DURATION IS ZERO or:
DP = DA - DL = 0.
23
A 5-YEAR PLANNING PERIOD CASE OF IMMUNIZATION IN
THE CASH MARKET
BOND C FV M r D PA $100 $1,000 5 yrs 10% 4.17 $1,000B $100 $1,000 10 yrs10% 6.76 $1,000
4.17WA + 6.76WB = 5
WA + WB = 1
WA = .677953668.
WB = .322046332.
VP = $200M implies:
Hold $135,590,733.6 in bond A, And $64,409,266.4 in bond B.
Next, assume that r rose to 12%. The portfolio in which bonds A and B are held in equal proportions will change to:
24
[1 - 4.17 (.02/1.1)] 100M = $92,418,181.2
[1 - 6.76 (.02/1.1)] 100M = $87,709,090.91 TOTAL = $180,127,272.7
INVEST THIS AMOUNT FOR 5 YEARS AT 12% y CONTINUOUSLY COMPOUNDED YIELDS: $328,213,290. ANNUAL RETURN OF:
%.9.91000,000,200
290,213,3285
7.272,803,181
782.492,56
1.1
)02(.76.614.266,409,64
7.490,310,1251.1
)02(.17.416.733,590,135
AFTER 5 YEARS AT 12%: $331,267,162. ANNUAL RETURN OF:
%.101000,000,200
162,267,3315
The weighted average portfolio changes to:
25
Before turning to the futures markets we elaborate on the
common practice of: Repurchase Agreements
An integral part of trading T-bills and T-bill futures is the market for repurchase agreements, which are used in much of the arbitrage trading in T-bills. In a repurchase agreement -- also called an RP or repo -- one party sells a security (in this case, T-bills) to another party at one price and commits to repurchase the security at another price at a future date. The buyer of the T-bills in a repo is said to enter into a reverse repurchase agreement., or reverse repo. The buyer’s transactions are just the opposite of the seller’s. The figure below demonstrates the transactions in a repo.
26
Party A Party B
Date t - Close the Repo
T-Bill
P1= P0(1+r0,t )
Transactions in a Repurchase Agreement
Date 0 - Open the Repo:
Party A Party BT- Bill
PO
Example: T-bill FV = $1M.
P0 = $980,000. The repo rate = 6%. The repo time: t = 4 days.
P1= P0 [(repo rate)(n/360) + 1]
= 980,000[(.06)(4/360) + 1]
= 980,653.33
27
A repurchase agreement effectively allows the seller to borrow from the buyer using the security as collateral. The seller receives funds today that must be paid back in the future and relinquishes the security for the duration of the agreement. The interest on the borrowing is the difference between the initial sale price and the subsequent price for repurchasing the security. The borrowing rate in a repurchase agreement is called the repo rate. The buyer of a reverse repurchase agreement receives a lending rate called the reverse repo rate. The repo market is a competitive dealer market with quotations available for both borrowing and lending. As with all borrowing and lending rates, there is a spread between repo and reverse repo rates.
28
The amount one can borrow with a repo is less than the market value of the security by a margin called a haircut. The size of the haircut depends on the maturity and liquidity of the security. For repos on T-bills, the haircut is very small, often only one-eighth of a point. It can be as high as 5% for repurchase agreements on longer-term securities such as Treasury bonds and other government agency issues.Most repos are held only overnight, so those who wish to borrow for longer periods must roll their positions over every day. However, there are some longer-term repurchase agreements, called term repos, that come in standardized maturities of one, two, and three weeks and one, two, three, and six months.Some other customized agreements also are traded.
29
INTEREST RATE FUTURES
The three most traded interest rate futures are:
TREASURY BILLS (CME)
$1mil; pts. Of 100%
EURODOLLARS (CME)
$1mil; pts. Of 100%
TREASURY BONDS (CBT)
$100,000; pts. 32nds of 100%
30
CONTRACT SPECIFICATIONS FOR:
90-DAY T-BILL; 3-Month EURODOLLAR FUTURES
SPECIFICATIONS 13-WEEK 3-Month EURODOLLAR
US T-BILL TIME DEPOSIT
SIZE $1,000,000 $1,000,000
CONTRACT GRADE new or dated T-billsCASH SETTLEMENT
with 13 weeks to
maturity
YIELDS DISCOUNT ADD-ON
HOURS(Chicago time) 7:20 AM-2:00PM 7:20 AM - 2:00PM
DELIVERY MONTHS MAR-JUN-SEP-DEC MAR-JUN-SEP-DEC
TICKER SYMBOL TB EB
MIN. FLUCTUATION .01(1 basis pt) .01(1 basis pt)
IN PRICE ($25/pt) ($25/pt)
LAST TRADING DAY The day before the2nd London business day
first delivery day before 3rd Wednesday
DELIVERY DATE 1st day of spot month Last day of trading
on which 13-week
T-bill is issued and a 1-year
T-bill has 13 weeks to maturity
31
Transactions in a Cash-and-Carry Arbitrage.
RepoMarket
Arbitrageur
T-BillDealer
FuturesMarket
PO (MONEY)
T-Bill
T-Bill
ShortPosition F0,t
P O (
MONEY)
Transactions in a Cash-and-Carry Arbitrage.
RepoMarket
Arbitrageur
FuturesMarket
P0(1+r0t)
T-Bill
Deliver
T-Bill
Receive F 0,t
Date t
Date 0
F 0,t > P0(1+r0,t)
32
Transactions in a Reverse Cash-and-Carry Arbitrage.
RepoMarket
Arbitrageur
T-BillDealer
FuturesMarket
PO (MONEY)
T-Bill
P0
LongPosition F0,t
T-Bill
Transactions in a Reverse Cash-and-Carry Arbitrage
RepoMarket
Arbitrageur
FuturesMarket
P0(1+r0,t)
T-Bill
TakeDelivery
T-Bill
Pay F 0,t
Date t
F 0,t < P0(1+r0,t)
Date 0
33
EXAMPLE: A 91- DAY T-BILL ARBITRAGE An arbitrageur observes that a 91-day T-bill yields 9.20 percent, a 182-day bill yields 9.80 percent, and a futures contract requiring delivery of a 91-day T-bill three months hence is priced so as to yield 10.2 percent. What action would he take ? TIME LINE <-------- r = 9.20% --------> <--------- 10.20% --------> -|----------------------------------------|---------------------------------------|---> 0 91 days 182 days ------------------------------- r = 9.80% ------------------------------------->
(1.098)2 = 1.092(1 + r1,2) r1,2= .1040 or 10.40% The no-arbitrage rate: 10.4% is greater than the market rate: 10.2%.
CASH - AND - CARRY
34
T I M E C A S H F U T U R E S 0 a ) B O R R O W $ 9 5 4 , 3 3 0 . 5 6 c ) S E L L A T - B I L L F U T U R E S
F O R 9 1 D A Y S
b ) B U Y A 1 8 2 - D A Y T - B I L L
9 1 D A Y S
R E P A Y T H E L O A N : D E L I V E R T H E 9 5 4 , 3 3 0 . 5 6 ( 1 . 0 9 2 ) . 2 5 9 1 - D A Y T - B I L L S F O R = $ 9 7 5 , 5 6 1 . 1 4 $ 9 7 6 , 0 1 1 . 7 5
A R B I T R A G E P R O F I T : $ 4 5 0 . 6 1 P E R C O N T R A C T
P = 1 , 0 0 0 , 0 0 0
( 1 . 0 9 8 . 5) = $ 9 5 4 , 3 3 0 . 5 6 F =
1 , 0 0 0 , 0 0 0
( 1 . 1 0 2 . 2 5) = $ 9 7 6 , 0 1 1 . 7 50 , t
35
THE SAME CASH-AND-CARRY STRATEGY .
TIME CASH FUTURES 0 a) ENTER A REPO AGREEMENT c) SHORT A
BY BORROWING $954,330.56 T-BILL FUTURES FOR 91 DAYS. F0,t = $976,011.75 b) BUY THE 182-DAY T-BILL FOR $954,330.56 AND GIVE IT TO THE OTHER PARTY OF THE REPO AGREEMENT. THUS, EFFECTIVELY, THE 91-DAY T-BILL IS SOLD TO THE OTHER PARTY FOR $954,330.56
91 DAYS RECEIVE THE T-BILL WHICH DELIVER THE
IS NOW A 91-DAY BILL. 91-DAY T-BILL FOR $976,011.75 REPAY THE REPO DEALER $975,561.14
PROFIT $450.61 / CONTRACT.
36
Transactions in a Cash-and-Carry Arbitrage
RepoMarket
Arbitrageur
T-BillDealer
FuturesMarket
PO =$954,330.56
182-day T-Bill
P0= $954,330.56
Short Position FOt = $976,011.75
182-day T-B
ill
Transactions in a Cash-and-Carry Arbitrage
RepoMarket
Arbitrageur
FuturesMarket
P0(1+r0,t) = $975,561.14
91 day T-Bill
Deliver91-day T-Bill
F 0,t = $976,011.75
Date t
Date 0
Profit = $450,61
37
I F T H E I M P L I E D F U T U R E S R A T E W A S 1 1 . 2 % T H E N : T H E O R E T I C A L = 1 0 . 4 % < 1 1 . 2 % = A C T U A L
R E V E R S E C A S H - A N D - C A R R Y T I M E C A S H F U T U R E S 0 a ) E N T E R A R E V E R S E R E P O c ) L O N G A 9 1 -D A Y
F O R $ 9 5 4 , 3 3 0 . 5 6 . T - B I L L F U T U R E S b ) S E L L 1 8 2 - D A Y S H O R T F 0 , t =
$ 9 7 3 , 8 0 9 . 0 4
9 1 D A Y S C L O S I N G T H E R E P O Y O U T A K E D E L I V E R Y
R E C E I V E $ 9 7 5 , 5 6 1 . 1 3 A N D O F 9 1 - D A Y
C L O S I N G T H E S H O R T P O S I T I O N T - B I L L F O R
Y O U D E L I V E R T H E 2 1 D A Y $ 9 7 3 , 8 0 9 . 0 4 T - B I L L S P R O F I T : $ 9 7 5 , 5 6 1 . 1 3 - $ 9 7 3 , 8 0 9 . 0 4 = $ 1 , 7 5 2 . 0 9
1 , 0 0 0 , 0 0 0
( 1 . 1 1 2 ) . 2 5
38
Transactions in a Reverse Cash-and-Carry Arbitrage
RepoMarket
Arbitrageur
T-BillDealer
FuturesMarket
PO = $954,330.56
182-day T-Bill
PO = $954,330.56
LongPosition FO,t = $973,809.04
182-day T-B
ill
Transactions in a Reverse Cash-and-Carry Arbitrage
RepoMarket
Arbitrageur
FuturesMarket
P1 = $975,561.13
91 day T-Bill
TakeDelivery91-day T-Bill
F 0,t = $973,809.04
Date t
Date 0
PROFIT = $1,752.09
39
ARBITRAGE ?
-------- 6% -------------- -----------12.5% ------------ Time|-------------------------------|----------------------------------|------------------>1.5 77 days 3.22 90 days 6.20
--------------------------------- 10% ----------------------- 167 days
(1 + .1
167360) = (1 + .06
77360) (1 +
1,2r
90360)
1,2r =
167901.1
1.779006
- 1 = .1354 ; 13.54%
THEORETICAL = 13.54% > 12.5 = ACTUAL
CASH-AND-CARRY.
40
LET THE YIELD ON THE SHORT-TERM BILL BE 8%:
(1.1) (1.08) (1 r
r 11.74%
167
360
77
3601,2
90
360
1,2
)
THEORETICAL RATE = 11.74%
IS LESS THAN
12.50% = ACTUAL MARKET RATE
REVERSE CASH-AND-CARRY
41
PRICE SENSITIVITY HEDGE RATIO:
AN APPLICATION OF DURATION.
The Hedge Value: V = S + NF.
Criterion: Minimize the position’s value sensitivity to interest rate changes.
.dr
dy
dy
dFN
dr
dy
dy
dS
dr
dV
:maturity to
yieldsfutures andspot thein changes
theof termsin expression thisrewrite
rule, chain the Using.dr
dF
dr
dS
dr
dV
F
F
S
S
42
To minimize dV/dr with respect to N, set:
.
drdy
dydF
drdy
dydS
N
,0dr
dV
F
F
S
S
Next, we use the following substitutions for
.dy
dF and
dy
dS
FS
43
SS
S S
SD = - dS
S 1 + y
dy dy1 + y
dS
S
.F
y + 1
dy
dF
dy
y + 1
F
dF - = D F
FF
FF
Recall that:
.y1
FD
dy
dS
and y1
SD
dy
dS
FF
S
SS
S
44
N = - SD
(1 + y ) (1 + y )
FD
dy
dy
dr
S
S
F
F
S
F
dr
N = - S D (1 + y )
F D (1 + y )S F
F S
Normally, the ratios of the yields sensitivities to the interest rate, r, are assumed to be zero. Thus:
This is the
price sensitivity hedge ratio.
45
A LONG HEDGE T-BILLS
CASH FUTURES
FEB. 15 DO NOTHING BUY 1 JUNE FUTURES: T-BILL
d = 8.20 => P = 100-8.2(91/360) IMMI = 91.32 => d = 8.68 =>
P = 97.927222 F = 10,000[100-8.68(90/360)]
F = $978,300
Sy = (
36591100
97.927222 - 1) = .0876
Fy = (
36591100
97.83 - 1) = .0981
MAY 17 d = 7.69 => P = 100 - 7.69(91/360) SELL 1 JUNE T-BILL FUTURES
P = 98.0561 IMMI = 92.54
BUY PER 1M $980,561 F = 10,000[1007.46(90/360)] =
OPPORTUNITY LOST <$1,289.17> $981,350
ACTUAL PRICE $977,511 PROFIT $3,050
PER 1M P = $979,272
16)300)(1.087(.25)(978,
1)272)(1.098(.25)(979,NF
46
EURODOLLAR FUTURES
These are futures on the interest earned on Eurodollar three-month time deposits.
The rate used is
LIBOR - London Inter-Bank Offer Rate.
These time deposits are non transferable, thus, there is no
delivery! Instead, the contracts are CASH SETTLED.
47
CALCULATING THE PROFIT ON A EURODOLLAR FUTURES TIME SPOT FUTURES MAY 23,01 $1M ED TD AT LONG 1 ED JUNE
9.35% FUTURES. F = 90.65 IMPLIED RATE: 9.35%
1I = .0935
41M = $23,375
MAY 30,01 $1M, ED,TD AT SHORT 1 ED JUNE 10.35% FUTURES. F = 89.65
IMPLIED RATE: 10.35%
2I = .1035
41M = $25,875
1M(89.65 - 90.65)(.01)90
360 = -$2,500
DIFFERENCE: 25,875 - 23,375 = $2,500
48
HOW TO LOCK IN A BORROWING RATE
TIME CASH FUTURES
MAY 23,01 90-DAY LIBOR = 9.35% F0,t = 90.65 DO NOTHING SHORT JUNE ED
FUTURES k=JUNE 19,01 BORROW $1M LONG
FOR 90 DAYS Fk,t = 100-LIBOR AT 90-DAY LIBOR
t
(i) LIBOR = 7% Fk,t = 100 - 7 = 93 (90.65 - 93)100(25) = - $5,875
NET = $23.375
I = (.07)$1M
4 = $17,500
(ii) LIBOR = 10.5% Fk,t = 100-10.5 = 89.5
(90.65-89.5)100(25)= $ 2,875
NET = 23,375
ANNUAL INTEREST RATE =
OR 9.35%
I =(.105)$1M
4 = $26,250
23,375
1,000,000
360
90.0935
49
r0,k = REPO RATE FOR 27 DAYS 9.45%r0,t = ED TD RATE FOR 117 DAYS 9.40%rF = ED TD FUTURES RATE: F0,k = 90.65 ? rF = 9.35%
_|_________________|_____________________|_________TIME 0 k t
t360(1+
0,tr ) = (1+
0,kr
k360) (1+
Fr
t-k360)
1 + F
r =
tt-k(1+
0,tr )
(1+0,k
r
kt-k)
rF = 9.385% > 9.35%
1 + F
r = (1.094
11790)
(1.0945
2790)
= 1.12388671.0274595
= 1.09385
Arbitrage with Eurodollar Futures
50
$1M((1+.0935
90360)
(1+.094
117360)
) = $993,171.08
CASH FUTURES
5.23 ESTABLISH A: SHORT AN ED TD FUTURES
F0,t = 90.65
TIME DEPOSIT FOR t .
6.19 BORROW $1M AT 9.35%
9.17 RECEIVE SETTLE IN CASH:
$993,117.08(1+.094
117360) $1M(1.0935
90360)
= $1,022,597.43 = $1,022,597.43
[(1,000,000-993,171.08)/993,171.08](360/27) = 9.17%
Quasi Arbitrage or, how to borrow capital using Eurodollar
Futures.
51
HEDGE COMMERCIAL PAPER ISSUE: A SHORT HEDGE WITH EURODOLLAR FUTURES
CASH MARKET FUTURES MARKET
APR 6 d = 10.17 IMMI = 88.23 => d = 11.77F = 10,000[100-11.77(90/360)]= $970,575DF = 90/360P = 94.915 = (100 - 10.17
180
360)
SY = (
1,000,000949,150
365180) - 1
FY = (
1,000,000970,575
36591) - 1 = .1283
= .1116
1 + Y S = 1.1116
DS = 180/365 1+YF = 1.1283
DO NOTHING
20 = 1611.1
31.128
970,575
9,491,500
365/90
365/180 = N F
SELL 20 SEPT. EURODOLLAR FUTURES - BECAUSE I (ISSUE) SELL IN THE CASH MARKET.
52
JUL 20 ISSUE $10M COMMERCIAL PAPER BUY 20 SPT EURODOLLARFUTURES
MATURING IN 180 DAYS IMMI = 87.47
d = 11.34 F=10,000[100-12.53(90/360)]P = 94.33
INCOME: $9,433,000 F = $968,675
12.51% = 1 - )9,433,000
10M( 180365
: HEDGE)COST(NO
COST(WITH HEDGE): 20(970,575) + [9,433,000 - 20(968,675)] =$ 9,471,000
A C T UA L C O S T : (1 0 M
9 ,4 7 1 ,0 0 0) - 1 = 1 1 .6 5 %
3 6 5
1 8 0
PROFIT: 20[970,575-968,675] = $38,000
53
On November 1, 2000, a firm agrees to borrow $10M for 12
months, beginning December 19, 2000 at
LIBOR + 100bps.
A STRIP HEDGE WITH EURODOLLARS FUTURES
DATE CASH FUTURES F11.1.00 LIBOR 8.44% Short 10 DEC91.41
Short 10 MAR 91.61 Short 10 JUN 91.53 Short 10 SEP 91.39
12.19.00 LIBOR 9.54% Long 10 DEC90.46
3.13.01 LIBOR 9.75% Long 10 MAR90.25
6.19.01 LIBOR 9.44% Long 10 JUN90.56
9.18.01 LIBOR 8.88% Long 10 SEP91.12
54
PERIOD: 1 2 3 4
RATEa: 10.54% 10.75% 10.44% 9.88%
INTERESTb: $263,500 $268,750 $261,000 $247,000
FUTURESc: $23,750 $34,000 $24,250 $6,750
NETd: $239,750 $234,750 $236,750 $240,250
EFFECTIVERATEe: 9.59% 9.39% 9.47% 9.61%
MEAN RATEUNHEDGED 10.40%HEDGED 9.52%
a. LIBOR + 100 BPSb. ($10M)(RATE)(3/12)c. (PRICE CHANGE)(25)(100)(10)d. b - ce. (NET/10M)(12/3)(100%)
55
A STACK HEDGE WITH EURODOLLAR FUTURES:
DATA ON NOVEMBER 11, 2000
VOLUME OPEN INTEREST
DEC 00 46,903 185,609
MAR 01 29,236 127,714
JUN 01 5,788 77,777
SEP 01 2,672 30,152
DECISION:
STACK MAR FUTURES FOR JUN AND SEP.
ROLL OVER AS SOON AS OPEN INTEREST
REACHES 100,000
56
THE STACK HEDGE
DATE CASH FUTURES F. POSITION
11.1.00 8.44% S 10 DEC 91.41S10DEC
S 30 MAR 91.61S30MAR
12.19.00 9.54% L 10 DEC 90.46S30MAR
1.12.01 9.47% L 20 MAR 90.47S10MAR
S 20 JUN 90.42 S20JUN
2.22.01 9.95% L 10 JUN 89.78S10MAR
S 10 SEP 89.82 S10JUNS10SEP
3.13.01 9.75% L 10 MAR 90.25 S10JUNS10SEP
6.19.01 9.44% L 10 JUN 90.56 S10SEP
9.18.01 8.88% L 10 SEP 91.12 NONE
57
PERIOD: 1 2 3 4 RATE(%) a: 10.54 10.75 10.44 9.88
INTEREST($)b: 263,500 268,750 261,000 247,000
FUTURES($)c: 23,750 34,000 28,500 28.500
(3,500) 16,000 (32,500)
NET($) d: 239,750 234,750 236,000 235,000
EFFECTIVERATE (%) e: 9.59 9.39 9.44
9.40
MEAN RATEUNHEDGED 10.40%HEDGED 9.46%a. LIBOR + 100 BPSb. ($10M)(RATE)(3/12)c. (PRICE CHANGE)(25)(100)(10)d. b - ce. (NET/10M)(12/3)(100%).This completes the example.
Next, we show an example of aSTRIP hedge with T-bill futures:
58
A FIRM BORROWS $10M AT A FLOATING RATE LIBOR +1%
TIME SPOT FUTURES
SEP. 15 RECEIVE $10M SHORT 10 T-BILL FUTURESLIBOR = 8% DEC F = 91.75PAY 9% MAR F = 91.60I1 = $225,000 JUN F = 91.45
ACTUAL $225,000 9.00% R
DEC. 15 LIBOR = 9.15% LONG 10 DEC. FUTURES:PAY 10.15% F = 90.85I2 = $253,750 GAIN:
10[91.75 - 90.85]10,000 (.25) = $22,500
ACTUAL: $231,250 9.25% R
MAR. 15 LIBOR = 9.50 LONG 10 MAR FUTURESPAY 10.50% F = 90.50I3 = $262,500 GAIN:
10[91.60 - 90.50]10,000 (.25) = $27,500
ACTUAL: $235,000 9.40% R
JUNE 15 LIBOR = 10.05% LONG 10 JUN. FUTURES:PAY 11.05% F = 89.95I4 = $276,250 GAIN:
10[91.45 - 89.95]10,000 (.25) = $37,500
ACTUAL: $238,750 9.55% R
SEP. 15 PAY $10M
.4
360.
M10
ACTUAL = R.
360
90M)$10
100
100 + LIBOR( = I
59
THE BANK
QUOTEDTIME RATE SPOT FUTURES
SEP. 159.00% LIBOR = 8% SHORT 10 ED FUTURESEXTENDED BORROWS $10M DEC: 91.7510M LOAN AT 8% MAR: 91.60
JUN: 91.45NET: 1% (.01/4)10M = $25,000 ACTUAL = $25,000 ? 1%
DEC. 15 9.25% LIBOR = 9.15% LONG 10 ED FUTURESBORROWS $10M AT 90.85AT 9.15%
NET: .1% GAIN $22,500
(.001/4)10M = $2,500 ACTUAL = $25,000 ? 1%
MAR. 15 9.40% LIBOR = 9.50% LONG 10 ED FUTURESBORROWS $10M AT 90.50AT 9.50%
NET: -.1% GAIN $27,500
(-.001/4)10M = $-2,500 ACTUAL = $25,000 ? 1%
JUNE 15 9.55% LIBOR = 10.05% LONG 10 ED FUTURESBORROWS $10M AT 89.95AT 10.05%
NET: -.5% GAIN $37,500
(-.005/4)10M = $-12,500 ACTUAL = $25,000 ? 1%
SEP. 15 + $10M ACTUAL = $25,000 ? 1%
FUTURES GAIN = 10(F(SEP) - F(t)) 10,000(. 25)
60
LONG-TERM INTEREST RATE FUTURES
The U.S. T-BOND FUTURES
trades on the CBOT
The underlying assets are Treasury Bonds with long-term maturity. It is among the most successful futures contracts of all existing contracts.
On any give day, there are 40 to 50 different T-bonds traded in the cash market and most of these are deliverable against a T-bond futures position, which makes this market extremely liquid.
61
SPECIFICATIONS OF U.S. TREASURY BOND FUTURES CONTRACTS
EXCHANGE CBOT
DATE OF INTRODUCTION AUGUST 22, 1997
TICKET SYMBOL US
CONTRACT SIZE $100,000 FACE VALUE
CONTRACT MONTHS MAR. JUN. SEP. DEC.
PRICE QUOTATION POINTS AND 1/32 OF A POINT. PRICES ARE BASED ON 6% COUPON RATE WITH 20 YEARS TO MATURITY(8% <2000)
TICK SIZE 1/32 OF A POINT, = $31.25
DELIVERABLE GRADES U.S. T-BONDS THAT ARE NOT CALLABLE FOR AT LEAST 15 YEARS AND HAVE A MATURITY OF AT LEAST 15 YEARS FROM THE FIRST BUSINESS DAY OF THE DELIVERY MONTH.
LAST TRADING DAY 7TH BUSINESS DAY PRECEDING THE LAST BUSINESS DAY OF THE DELIVERY MONTH.
DELIVERY METHOD FEDERAL RESERVE BOOK-ENTRY WIRE-TRANSFER SYSTEM.
62
CONVERSION FACTORS
T-BOND FUTURES PRICES ARE BASED ON A 20 –YEAR BOND THAT PAYS 6% (8%, PRIOR TO 2000) COUPON RATE, SEMIANNUALLY.
DELIVERABLE AGAINST A SHORT POSITION IS ANY T-BOND WITH MATURITY, OR FIRST TIME TO CALLABILITY OF 15 YEARS. THUS, THE SHORT MAY CHOSE FROM A VARIETY OF BONDS AND DELIVER THE BOND THAT WILL MINIMIZE (MAXIMIZE) THE SHORT COST (REVENUE). THIUS BONMD IS LABELED “THE CHEAPEST TO DELIVERY.”
THE PROBLEM IS THAT THE ORIGINAL FUTURES PRICE CONTRACTED FOR MUST BE ADJUSTED TO CONFORM WITH THE BOND THAT IS EVENTUALLY DELIVERED. THE ADJUSMENT PUT THE BOND DELIVERED ON PAR WITH THE ORIGINAL FUTURES PRICE. THIS IS DONE WITH CONVERSION FACTORS. THE CONVERSION FACTOR OF A T-BOND REPRESENTS THE NET PRESENT VALUE OF THE COUPON PAYMENTS OF THE BOND ACTUALLY DELIVERED IN EXCESS(IN SHORT), RELATIVE TO A 20YEAR BOND WITH 6% (8%) RATE, R.
$100,000R/2)(1
$100,0000R/2)(1
$100,0002
CR
CF2Mt
63
CBOT T-BOND CONVERSION FACTORS based on 8% futures pricesYRS = YEARS TO MATURITY OR FIRST
CALLABILITYM = NUMBER OF MONTHSCR = COUPON RATECF = Conversion factor ROUND MONTHS TO: M*= 0,3,6, OR 9.
Case 1: M* = 0 2YRS
2YRS
0 (1.04)].04
(1.04)1[
2
CRCF
Case 2: M* = 3
4
CR)(1.04)
2
CR(CFCF .5
03
64
Case 3: M* = 6
1)+(2YRS1)+(2YRS
6 (1.04)].04
(1.04)1[
2
CRCF
Case 4: M* = 9
4
CR)(1.04)
2
CR(CFCF .5
69
65
EXAMPLE:
THE CONVERSION FACTOR FOR DELIVERY OF THE 11 3/4s FOR NOVEMBER 15, 2015 , ON THE
DECEMBER 1999 T-BOND FUTURES CONTRACT:
ON 12.1.99 YRS = 15 until 2014.M = 11 14 DAYS are ignored.THUS, YRS = 15 M is rounded off to M* = 9 .FIRST COMPUTE :
1)+2(15)1)+2(15)
6 (1.04)].04
(1.04)1[
2
.1175CF (
(
CF6 = 1.3298. NOW COMPUTE:
factor. conversion sbond' theis 1.3322 9
CF4
.1175.5)(1.04)2
.1175(1.32989CF
66
A bond portfolio manager decides to sell $10M FV of 11 7/8 M-19 yrs T-bonds on March 28. Currently, FEB 26, the bond sells for S=$101/$100FV.
A SHORT T-BOND HEDGE
TIME CASH FUTURES
FEB. 25 10M FV T-BONDS SELL 160 JUNCR = 11 7/8 M-19 T-BOND Fs.S = 10,100,000 F=70-16Ds = 7.83 Df = 7.20Ys = 11.74% Yf = 14.92%
1604)500)(1.117(7.20)(70,
.1492)100,000)(1(7.83)(10,-=N
MAR. 28 S = 95.6875/$100FV LONG 16 JUN$9,568,750 T-BOND Fs
Opportunity loss <$531,250> F = 61 - 23Futures gain: [(70-16)-(61-23)]160
=(8-25)160=($8781,25)160=$1,405,000.
Total selling price: 9,568,750 + 1,405,000 = $10,973,750
67
LONG HEDGE WITH T - BOND FUTURES
DATE CASH FUTURES
MAR. 29 LONG 110 SEP T-BOND Fs.
F = 78-21BY REGRESSION N = 110.
JUL. 15 s=107 19/32 SHORT110 SEP T-BOND
$10,759,375 Fs. F = 86-6
Gain from futures:110[(86-6) – (78-21)]
=110[7-17]=110[$7,531.25] = $828,437.5
THUS, THE EFFECTIVE PURCHASE PRICE OF THE T- BONDS IS: $10,7593,750 - $ 828,437.5
= $9,930,937.5
68
HEDGING A CORPORATE BOND ISSUE
FEB. 24. DECISION: ISSUE $50M CORPORATE BONDS AT PAR VALUE ON MAR. 24.EXPECTATIONS: CR = 13.76%
M = 20yrs D = 7.22
DATE CASH FUTURES2.24 DS = 7.83 SHORT 674 FUTURES.
yS = 13.6% F(JUN) = 68-11S=$50M. DF=7.83; yF =
13.6%
674.- 1376)343.75)(1.(7.83)(68,
.1360)000,000)(1(7.22)(50,- = N
5.24 ISSUE BONDS LONG 674 JUN T-BOND CR=13.26% Fs. F(JUN) = 55-25 S=$907.4638/$100FV
V(BOND ISSUE) = $45,373,190Gain from futures: 674[(68-11)-(55-25)]
=674[12-18] =674[$12,562.5]=$8,467,125.
TOTAL VALUE=$53,840,315.
69
PROJECT PLANNING:
ELIMINATION OF FOREIGN INVESTMENT RISK EXPOSURE BY
FORWARD TRADING OR BY THE USE OF U.S. TREASURY SECURITIES.
An American firm expects an income of FC40,268,394 from a project in the foreign country. Its next project will begin only 90 days later in the same country. Thus, the above sum will be invested in the foreign country for 90 days. The interest rate in 90 days is not known and the firm would like to eliminate the risk exposure associated with the investment of the above sum for 90 days. Given current spot and forward exchange rates, as well as current and forward interest rates, the firm will choose between investing forward or using the U.S. T-bill futures.
70
PROJECT PLANNING:
Exchange rate Spot Interest rate
Spot: .4729 U.S. F.C.
90-day .4765 3-month: 14%9.15%
180-day .4782 6-month: 16$ 10.22%
3-month forward rates
U.S. = 18.035%. F.C. = 11.3%
I. Invest 40,268,394 FC forward at the foreign country will result in a fixed and known total sum of:
40,268,394e(.113)(.25) = 41,422,197FC
in 180 days.
Instead, the firm could entertain the following strategy:
71
Date Spot market Futures market
t=0 Do nothing. 1.Short 40,268,394 90-day forward at $.4765/FC.
2. Long 20 T-bill futures on the CBT for 959,394.49
3. Short $20M 180-day forward at $.4808/FC.
t=90
Receive Pay $40,268,394(.4765) =
40,268,394FC. = $19,187,889.80 and take delivery of $20M face value T-bills.
t = 180 T-bills Take delivery of 41,597,338 mature, Collect to close your short $20M forward position paying
$20M.
THE SECOND STRATEGY IS BETTER.