1. Exchange Traded Derivatives
Involves a Clearing House
Physical Market
Low Default Risk
Contains standard terms and features
Markets can be called futures market or options exchange
Study Session 17, Reading 60
2. Over-the-Counter Derivatives
No Physical Market (Not listed on the market)
Transaction Created by Two Parties
Decentralized Market and Exchange
Study Session 17, Reading 60
3. Exchange-Traded vs Over-the-Counter
Exchange-Traded
Physical Market
Have Standard Terms and
Features
Organized Facility
Over-the-Counter
No Physical Market
Transaction created by two
parties
Decentralized Market and
Exchange
Study Session 17, Reading 60
4. Forwards
Forward contract is an agreement between two parties to
buy/sell an asset at some specific future date at a specific
price determined at the initiation of the contract
Study Session 17, Reading 60
5. Futures
Futures contracts are exchange traded, give the
buyer/ seller a right to buy/sell a security in the
future at a specific price
Study Session 17, Reading 60
6. Forwards vs Futures
Forwards Contract
Non-Exchange Traded
No Clearing House
Between Two Parties
Customized Contract
Higher Default Risk
Futures Contract
Exchange Traded
Involve Clearing House
Market to Market
Standardized Contract
Lower/Minimal Default Risk
Study Session 17, Reading 60
7. Options
A Contingent Claim
An option/right, not an obligation to buy/sell an asset if a
certain threshold is reached
Option premium must be paid to acquire the right
Study Session 17, Reading 60
8. Swaps
Swap is equal to a series of forward contracts
Private transactions that are not directly regulated
Payments payments can be fixed and floating
Swaps can be on interest rates, exchange rates, stock
prices, commodity prices etc.
Study Session 17, Reading 60
9. Purpose of Derivative Markets
Improve market efficiency for the underlying asset
Provide price discovery
Mechanism for hedging against risk
Reduce market transaction cost
Require a high degree of transparency
Study Session 17, Reading 60
10. Purpose of Derivative Markets
The price of the contract with the shortest time to expiration
often serves as a proxy for the underlying asset
The price of all future contracts serve as prices that can be
accepted by those who trade the contracts
Options also aid in price discovery in the way the market
participants view the volatility of the markets
Study Session 17, Reading 60
11. Criticism of Derivative Markets
Very complex instruments
Most investors fail to understand
Mistakenly characterized as legal gambling
Study Session 17, Reading 60
12. Role of Arbitrage in Prices
The market will cause the prices of two equivalent assets to be
equal (i.e. eliminate the arbitrage opportunity)
Risk free profit can be made if an arbitrage opportunity exists
If the calculated forward price is different from the quoted
price, then an arbitrage opportunity exists
Study Session 17, Reading 60
13. Role of Arbitrage in Prices
Law of one price suggests that there should be one price for
identical assets
Forward price is the spot price adjusted for interest rate
If the calculated forward price is different from the quoted
price, then an arbitrage opportunity exists
Study Session 17, Reading 60
14. Role of Arbitrage in Market Efficiency
Efficient markets have less arbitrage opportunities
Fully efficient markets have no arbitrage opportunities
Study Session 17, Reading 60
15. Delivery Settled vs Cash Settled Contracts
Underlying asset can be delivered at the expiration date in
delivery settled contract
Long will pay the specified price (the forward price)
Short will deliver the asset
Study Session 17, Reading 60
16. Delivery Settled vs Cash Settled Contracts
Only the owed difference will be paid by the party in a cash
settled contract
If the price has gone up the long the short will make a cash
payment to long or vice versa
Study Session 17, Reading 60
17. Default Risk
Long
If the price of the asset
increases, the long will
receive a payment
Long faces the default risk
that the short will not be
able to meet the
commitment
Short
If the price of the asset
declines, the long will make a
payment to short
Short faces default risk that
long will not be able to make
the payment
Study Session 17, Reading 60
18. Settling a Forward Contract
at Expiration
Payment made by the long at delivery, and delivery of asset is made
by the short.
Long gets payment if the price has gone up
Short gets a payment if the price has gone down
Study Session 17, Reading 61
19. Termination Before Expiration And Effect On
Credit Risk
New contract can be entered by either party in order to cancel
the existing position
Eg. If long, can take a short position in an identical forward
contract to cancel position
Study Session 17, Reading 61
20. Termination Before Expiration And Effect On
Credit Risk
Credit risk can arise from entering into new contract with a
different counterparty
Credit risk can be minimized by re-entering in the contract
with the same party
Both parties can agree to cancel the both contracts to cancel
the position
Study Session 17, Reading 61
21. Dealers
Facilitate contracts for end users
A big network of financial (banking and non-banking)
institutions act as dealers
Study Session 17, Reading 61
22. Dealers
Each dealer has a quote desk.
Dealers are ready to take either side of the transaction, which
is usually completed over the phone.
-shift risk from parties as they take on transaction
-lay off risk by dealing with other dealers
-make profit from offloading risk to other dealers
Study Session 17, Reading 61
23. End Users
End users usually want to manage the risk
End users include corporations, non-profit organizations and
governments
-Eg. A corn producer can buy/sell a forwards contract if he is
unsure about future corn prices
Study Session 17, Reading 61
24. Equity Forward Contracts
A contract to buy one stock, a portfolio of stocks, or a stock
index at a specific price in the future
A single stock or a portfolio can be sold or bought at a future
date by locking in the price today
Study Session 17, Reading 61
25. Equity Forward Contracts
Index forward contracts behave identically to a single or a
portfolio of forwards contracts
When underlying stocks pay dividends, forward price
adjustments will be needed
Study Session 17, Reading 61
26. Bond Forward Contracts
Similar to forwards contracts on equities
Different than forwards contracts on interest rates
Forward price needs to be adjusted for coupon paying bonds
Zero coupon bonds act similar to non-dividend paying stocks
Study Session 17, Reading 61
27. Bond Forward Contracts
Forward contract on a bond must expire before the maturity of
the bond
Forward contract should clearly define default risk.
-Eg. how default will affect the parties, should be
clearly mentioned in the contract.
Study Session 17, Reading 61
28. Eurodollar Time Deposits
Any deposit in US dollars outside the US
Banks borrow funds by issuing Eurodollar time deposits
Eurodollar time deposits are short term unsecured loans.
The Eurodollar time deposits market, primarily centred in
London, is relatively less regulated.
Study Session 17, Reading 61
29. LIBOR
Lending rate between financial institutions
Used for derivative pricing
Rate at which London banks issue dollar loans to other
banks, the best rate on the dollars loaned by a bank
an add-on interest rate, it is added to the face value
Study Session 17, Reading 61
30. EURIBOR
Interbank borrowing rate
Issued by European Central Bank
Used for borrowing between financial institutions
Study Session 17, Reading 61
31. Forward Rate Agreement
A Forward Rate Agreement is a forward contract on interest
rates
FRA is different from a forward contract on a bond
Only the interest differential on the notional amount of the
contract is paid
Study Session 17, Reading 61
32. Forward Rate Agreement
The parties to the contract will exchange a fixed rate for a
variable rate
If rates rise then the long will get a differential payment (ie
long interest rates). If the interest rates decline then the short
will get a differential payment (ie short interest rates). At
expiration the present value of interest rate differential is paid.
The rate is called a forward contract rate.
Study Session 17, Reading 61
33. Calculation
Payment is the difference between the rate at expiration and
forward rate
Company X enters into an FRA with Company Y. Company X will receive a
fixed rate of 5% for one year on a principal of $1 million in three years.
Company Y will receive the one-year LIBOR rate, determined in three years'
time, on the principal amount. The agreement will be settled in cash in
three years. After three years' time, the LIBOR is at 5.5%. Company X will
pay Company Y, as the LIBOR is higher than the fixed rate.
Study Session 17, Reading 61
34. Calculation
Mathematically, $1 million at 5% generates $50,000 of interest
for Company X while $1 million at 5.5% generates $55,000 in
interest for Company Y.
Study Session 17, Reading 61
35. Calculating The Payoff
Difference in the interest rates is paid
The payoff is adjusted for the present value in the case of a
cash settled FRA
Payoff made at maturity in the instance of a cash settled
contract
- Long gets a payoff if the interest rates go up.
- Short gets a payoff if the rates go down
Study Session 17, Reading 61
36. Formula and Component Terms
Notional principal is agreed upon at the initiation of the
contract
Underlying rate is the rate at expiration, usually LIBOR
Forward contract rate is the agreed rate
Days in underlying rate are the days to maturity of the
instrument
Study Session 17, Reading 61
37. Currency Forward Contracts
Used by banks and corporations to manage foreign exchange
risk
Eliminates uncertainty about future exchange rates
Forward rate can be locked in without any upfront cost
Study Session 17, Reading 61
38. Futures Contracts
Standardized contracts
Traded on exchanges
Marked to market
Limited default risk
Study Session 17, Reading 62
39. Futures vs Forwards
Futures Contract
Standardized
Settled daily
Involves Clearing House
No/Minimal Default Risk
Terms set by Exchange
(Market to Market)
Forwards Contract
Non-standardized
Not settled daily
No Clearing House
Considerable Default Risk
Terms set by the parties
Study Session 17, Reading 62
40. Margin and its Role
A percentage of the contract value is initially deposited into
the margin account by each party.
The margin allows each party to avoid paying the full amount
of the contract value at the initiation of the contract
Study Session 17, Reading 62
41. Margin in Stock and Future Market
Margin in stock market means a loan is made but a margin in
futures market means a percentage of the contract value has
been paid
Study Session 17, Reading 62
42. Initial Margin
It is the margin required to set up an account and buy the
contract
Investor deposits the initial margin into her account before
starting futures trading. The deposit can be likened to a down
payment.
Study Session 17, Reading 62
43. Maintenance Margin
The minimum balance required to be maintained in the
margin account
The maintenance margin requirement is lower than the initial
margin.
Study Session 17, Reading 62
44. Variation Margin
When the account balance falls below the maintenance
margin requirement, the investor need to deposit money in
the account to bring it back to initial margin.
The amount deposited in the account to bring it back to the
initial margin
Study Session 17, Reading 62
45. Settlement Price
The official price of the futures contract, designated by the
clearing house, which usually represents the average of the
final few trades of the day
eliminates the biases from the pricing of the futures
Study Session 17, Reading 62
46. Price Limits
Price limits are imposed on some futures where the price
cannot move beyond those limits.
Study Session 17, Reading 62
47. Limit Move
If the transaction is made at a price beyond the price limit
then the price freezes and it is called a limit move
In case of price being stuck at upper limit it is called “limit up”
and “limit down” in case of price being stuck at the lower limit
Study Session 17, Reading 62
48. Locked Limit
If the price is beyond limit such that the transaction cannot
take place, then it is called a locked limit.
The settlement price is one of the limits if the price has not
moved back within the limits by the end of the day
Study Session 17, Reading 62
49. Margin: Example
The prices of a futures contract for five
consecutive trading days is provided in
the table. The initial margin
requirement is set at $4.00 per contract
and the maintenance margin is $3.60
per contract.
Study Session 17, Reading 62
50. Margin: Example
On day 0, a trader enters into a short position for 15 contracts.
Study Session 17, Reading 62
51. Margin: Example
On day 0, the trader must
deposit an initial margin of
$60 (= $4 x 15).
Subsequent gains and
losses on the short position
are reflected in the ending
margin balance for the day.
The ending balance on day
4 is $45, which is below the
maintenance margin of
$54 (= $3.60 x 15).
Study Session 17, Reading 62
52. Margin: Example
On any day in which the
amount of money in the
margin account at the
end of the day falls below
the maintenance margin
requirement, the trader m
must deposit sufficient
funds to bring the
balance back up to the
initial margin.
requirement.
Study Session 17, Reading 62
53. Margin: Example
Therefore, the trader
must deposit $45 on day 5
to bring the margin
balance up to $90. After
reflecting a gain of $15,
the ending balance on
day 5 is $105.
requirement.
Study Session 17, Reading 62
54. Terminating Futures Contract
Futures contracts can be settled either during or before
expiration. Termination terms are determined when the
contract is initiated. They specify whether the contract is
settled by physical delivery or cash.
Most futures contracts are exited before expiration. An
offsetting contract needs to be entered for an investor to close
a position before expiration.
Study Session 17, Reading 62
55. Delivery and Cash Settlements
Delivery-Settled Contracts
Clearing house matches
the long position party
with the short position
party in the same asset
Long gets the delivery
from the short and pays
the contract price to
the short
Cash-Settled Contracts
The investor’s account will
be marked to the market
on the final day and the
position is closed
Cash settlement contracts
have lower transaction
costs
Study Session 17, Reading 62
56. Treasury Bill Futures
Short term interest rate futures
While the contract is trading, the price is quoted as 100 minus
the rate quoted as a percentage into the contract by the
futures market
Expiry may be the current month, next month, or the next
quarter (eg March, June, September and December)
For treasury futures, the contract with the nearest expiration
tends to have the highest trading volume Study Session 17, Reading 62
57. Eurodollar Futures
Eurodollars futures are based on the LIBOR
Final settlement is made on the final day based on the
Eurodollar rate determined by British Bankers Association
Contracts do not permit the actual delivery of Eurodollar time
deposits
Study Session 17, Reading 62
58. Treasury Bond Futures
Medium or long term interest rate futures
Very actively traded futures contracts
A vast universe of bonds with differing maturities makes the
futures on bonds very complex
A conversion factor is used to determine the health of the
deliverable bonds and which bonds can be delivered by the
short
Cheapest to deliver bonds are identified by the short
Study Session 17, Reading 62
59. Stock Index Futures
Futures on stock indices have a multiplier which is multiplied
by the quoted futures price
typically expire in March, June, September or December, but
the trading volumes are highest in the nearest two or three
expiration futures
Study Session 17, Reading 62
60. Currency Futures
Market is not as active as the currency forwards market
Each contract has a designated size and quotation unit
Typically expire in March, June, September and December
Currency futures contracts call for actual delivery of the
underlying currency
Study Session 17, Reading 62
61. Call and Put Options
An option is a derivative contract which gives the owner a right but
not the obligation to exercise it in future. It is a right, not an
obligation.
Study Session 17, Reading 63
Call Option
right to buy an asset in the
future at a specific price
buyer expects the prices to go
up
option is exercised if the price
of the asset is greater than the
strike price
Put Option
right to sell an asset in the
future at a specific price
buyer expects the price to
decline
option is exercised if the price
of the asset is below the strike
price
62. Call and Put Option: Terms
Exercise price is a price at which the option can be exercised
(also called the strike price)
The option premium is the amount paid to buy the right
Payoff is the amount which option buyer receives upon
exercise of the option (it may be negative)
Study Session 17, Reading 63
63. European and American Options
European Options
Can only be exercised
at expiry
Easier to value
Trade at a discount
American Options
can be exercised at any time
during the life of the option
Difficult to value due to optimal
exercise time consideration
Trade at a premium due to
flexibility on exercise dates
Study Session 17, Reading 63
64. Moneyness of an Option
Moneyness is the relationship between the price of the
underlying asset and the strike price
An option can be characterised as: in the money, at the money
and out of the money
An option is in the money, when it has a positive payoff (eg
long call = price > strike)
Study Session 17, Reading 63
65. In the Money
“In the money” Options: cash inflow s > cash outflow
Study Session 17, Reading 63
For Call Options:
price of the asset > option's
strike price
For Put Options:
price of the asset < option's
strike price
66. At the Money
An option is “at the money” when the exercise price is equal
to the market price of the underlying asset
The definition for an at the money option is the same for both
put options and call options
At the money options are usually not exercised because they
result in neutral cash flow at maturity (but a loss to option
holder given the option premium already paid)
Study Session 17, Reading 63
67. Out of the Money
Outflow > Inflow
Option results in a loss and is allowed to expire worthless.
Study Session 17, Reading 63
For Call Options:
option's strike price > market
price of the underlying asset.
For Put Options:
option's strike price <
market price of the
underlying asset.
68. Exchange-Traded vs Over-the-Counter
Options
Exchange-Traded
Undertaken by both
institutional and individual
investors
Credit risk does not exist
Options exchange fixes all
the terms of the options
contract
Public contracts
Over-the-Counter
Undertaken by large
institutions, not individual
investors
Credit risk exist
Participants choose and
agree on the terms of the
option
Private party contracts
Study Session 17, Reading 63
69. Over the Counter Options
Over the counter market is much like a forwards market
There are no guarantees in the over the counter markets
More flexible
Dealers market
Study Session 17, Reading 63
70. Exchange Traded Options
The options exchange fixes all the terms of the options
contract, whether the option is European/American or delivery
settled/cash settled
Fairly short term expirations for exchange traded options
LEAPS (Long Term Equity Anticipatory Securities) are long term
options
Study Session 17, Reading 63
71. Types of Options by Underlying
Instruments
Financial Option – Option when the underlying asset is a
financial asset
(i.e. stock options, interest rate options, bond options)
Commodity Option – Option when the underlying asset is a
commodity,
Study Session 17, Reading 63
72. Financial Options: Stock Options
The most popular form of option contract
Typically exchange traded and available on most widely traded
stocks.
Can also be created in the over the counter market
Equity Options - options on individual stocks
Index Options - options on a stock market index
Study Session 17, Reading 63
73. Financial Options: Bond Options
Options on bonds
Primarily traded in over the counter markets
Can be delivery settled or cash settled
Exchanges have not been successful with bond options
Bond options are mostly on government bonds
Study Session 17, Reading 63
74. Interest Rate Options
Underlying is an interest rate
Option to borrow/lend in the future
Effective tool to hedge against interest rate uncertainty
When the contract expires, the payoff is made immediately
Study Session 17, Reading 63
75. Out of the Money
Exercise rate is used for interest rate options, instead of exercise
price
Payoff is the differential between the underlying rate and the strike
rate
Study Session 17, Reading 63
Call holder: right to make a fixed
rate payment and receive a
variable rate payment
-“In the money”: unknown rate >
strike rate
-“Out of the money”: unknown
rate < strike rate
Put holder: right to make a variable
rate payment and receive a fixed
rate payment
-“In the money”: unknown rate <
strike rate
-“Out of the money”: unknown rate
> strike rate
76. Interest Rate Cap
A limit on the upward movement of interest rates
A set of interest rate call options
Each option is independent of the other option
Each call option is called a caplet
Study Session 17, Reading 63
77. Interest Rate Floor
A limit on the downward movement of interest rates
A series of interest rate put options
Options are independent of each other
Each option is called a floorlet
Study Session 17, Reading 63
78. Interest Rate Floor and Interest Rate Cap
Interest Rate Cap
A limit on the upward movement of
interest rates
A set of interest rate call options
Each option is independent of the
other option
Each call option is called a caplet
Interest Rate Floor
A limit on the downward movement of
interest rates
A series of interest rate put options
Options are independent of each other
Each option is called a floorlet
Study Session 17, Reading 63
79. Collars
A combination of caps and floors
-Long cap and short floor
-Short cap and long floor
Hedging can be undertaken at zero cost by matching the long
call and short floor
Underlying can be any interest rate
Study Session 17, Reading 63
80. Option Payoff
The option value at expiration is called an option’s “payoff”
Study Session 17, Reading 63
Payoff For Calls
Payoff is the maximum of 0 or
“spot price minus strike price”
Max (0, (Underlying Price -
Strike Price))
Upside potential is unlimited
Loss is limited to option
premium.
Payoff For Puts
Payoff is the maximum of
either 0 or the “strike price
minus the underlying price”
Max (0, (Strike Price -
Underlying Price))
Downside potential is limited
For a long put position, the
loss is limited to option
premium
85. Components of Option Price
Option price have two components:
-Intrinsic value: Difference between the actual price and the
strike price
-Time value: Depends on the remaining time in option
expiration and volatility
Option value = Intrinsic value + Time value
Prior to expiry, Option value exceeds its Intrinsic value. The
difference is Time value.
As the option reaches expiry, Time value decreases and
Intrinsic value increases.
At expiry, Time value is 0 and Intrinsic value is at maximum.
Study Session 17, Reading 63
86. Intrinsic Value
For a Call: 0 or “spot price minus strike price”
For a Put: 0 or “strike piece minus spot price”
Before expiration, an option will normally sell for more than its
intrinsic value
“At the Money” or “Out of the Money” Option: Intrinsic Value
= 0
“In the Money” Option: Intrinsic Value > 0
Study Session 17, Reading 63
87. Time Value
The difference between the market price and intrinsic value
At expiration, Time value = 0
Given European options cannot be exercised early, all the
option value is “time value”
Study Session 17, Reading 63
88. European and American Options:
Minimum and Maximum Values
All options have a floor value of zero
American options are more valuable than European options given
the flexible exercise regime
Study Session 17, Reading 63
European Option:
Call Option:
0≤co≤ So, min. value for call
option is 0 and the max. value is
the spot price of the underlying
Put Option:
po≥0, min. value
po≤ X/(1+r)t, max. Value
American Option:
Call Option:
0≤Co≤ So, min. value for
American call will be zero and
max. value can be spot price
Put Option:
Po≥0, min. value
Po≤ X, max. value
89. European Options
Given the lack of exercise option, the European put option needs to
be discounted
Example
Given: So= 28, X=25, r= 5% t=1/2 years
Since, 0≤co≤ So
0≤co≤28, minimum and maximum values for a European call option
Since, po≥0, min. value po≤ X/(1+r)t, max. value
0≤po≤24.4~ (25/(1.05).5), minimum and maximum value for European
put option
Study Session 17, Reading 63
90. American Options
Given the option of early exercise, the American put option does not
need to be discounted.
Example
Given: So= 28, X=25
Since, 0≤Co≤ So
0≤Co≤28, minimum and maximum values for a American call option
Since, Po≥0, min. value Po≤ X, max. Value
0≤Po≤25, minimum and maximum value for American put option
Study Session 17, Reading 63
91. Lowest Prices of European Options
Option Price is between 0 and the maximum
Lower bound = 0 or current price [of underlying]- exercise
price (present value), whichever is higher
To get a lower bound, options can be combined with risk free
bonds. An investor needs to buy a bond with a Face value =
Exercise price & a Current value = Exercise price (Present
value). This involves borrowing and lending money equal to
the present value of exercise price
Study Session 17, Reading 63
92. European Call
Lower bound combination for European calls.
co ≥ Max*0,So-X/(1+r)T]
Study Session 17, Reading 63
Transaction Current Value Value at Expiration
ST ≤ X ST > X
Buy Call C0 0 ST - X
Sell Short Underlying -S0 -ST -ST
Buy Bond X/(1+r)^T X X
Total C0 - S0 + X/(1+r)^T X-St≥0 0
93. European Put
Lower bound combination for European Puts.
Lower bound = 0 or exercise price (present value) - price of the
underlying
po≥ Max*0,X/(1+r)T-So]
Study Session 17, Reading 63
Transaction Current Value Value at Expiration
ST ≤ X ST > X
Buy Put P0 X - ST 0
Sell Short Underlying S0 ST ≤ X ST
Buy Bond -X/(1+r)^T -X0 -X
Total P0 - S0 + X/(1+r)^T 0 ST - X ≥ 0
94. Lowest Prices of American Options
American options are exercisable immediately
Lower bound = current intrinsic value
-Co ≥ Max(0, So-X)
-Po ≥ Max(0, X-So)
Option price will be at least intrinsic value, otherwise an
arbitrage opportunity exists.
The lower bound for American puts is higher than the lower
bound for European puts
Study Session 17, Reading 63
95. Effects of Exercise Price on
Option Values
Put options with a higher exercise price, have higher option prices
Call options with a higher exercise price, have lower option prices
A call option with higher exercise price cannot have a higher value than an
option with lower exercise price
Call option buyers are willing to pay less for an option with a higher exercise
price
The value of a put with a higher exercise price must be as much, if not more
than, the lower exercise price option
Study Session 17, Reading 63
96. Effects of Time to Expiration on
Option Values
Additional time to expiry is an advantage for an American put holders since it can
be exercised at any time, but it can be a disadvantage for a European put holder
due to the loss of interest
More time to expiry, the more valuable an option
For the options deep in the money or deep out of money, the time value of the
option may be diluted.
For a European put, longer or shorter time to expiry can be worth more
Study Session 17, Reading 63
97. Put-Call Parity for European Option
A premium on the call option corresponds to the fair value of a put option having
the same exercise price and expiration date and vice versa
Arbitrage opportunity will exist if the prices diverge
C+X/(1+r)t= So + P
Study Session 17, Reading 63
98. Put-Call Parity for European Option
C+X/(1+r)t= So + P
The left hand side of the equation consists of a European call and risk free bond
-If price of underlying < strike price, then the option is worthless at expiry
and the bond = X
-If price of underlying > strike price, then the call expires as S-X
Study Session 17, Reading 63
99. Put-Call Parity for European Option
C+X/(1+r)t= So + P
The right hand side of the equation comprises of a European put and the
underlying asset
-If price < strike price, the put expires as X-S
-If price > strike price then the put expires worthless and the value of the
underlying is ST
Study Session 17, Reading 63
100. Put-Call Parity Used to Arbitrage
Right hand side of the equation is called a synthetic call
An “in the money” synthetic call will give the underlying value minus the payoff of a
bond
Right(?) hand side of the equation is called the synthetic put
Prices not conforming to put call parity will result in an arbitrage opportunity
Study Session 17, Reading 63
101. Effects of Cash Flows on
Put-Call Parity
In the case of stocks, present value of dividends is deducted from the underlying’s
price
In the case of bonds, present value of coupon payments is deducted from the
underlying asset’s price
co+X/(1+r)T= Po + [So-PV(CF,0,T)]
Study Session 17, Reading 63
102. Effects of Cash Flows on
the Lower bounds
In the case of stocks, present value of dividends is deducted from the underlying
asset’s price
In the case of bonds, present value of coupon payments is deducted from the
underlying asset’s price
co ≥Max{0,*So-PV(CF,0,T)]-X/(1+r)T}
po ≥Max{0,X/(1+r)T-[So-PV(CF,0,T)]}
Study Session 17, Reading 63
103. Effects of Interest Rate Change
on an Option’s Price
Higher interest rates :
-increase the call option price
-decrease the put option price
When interest rates are high, investors forfeit more interest when interest rates are
higher while waiting to sell the underlying. (i.e. the opportunity cost of waiting to
sell in a higher interest rates is more significant)
When the underlying asset is an interest rate or bond, the interest rates do not
have a strong effect on the option prices
Study Session 17, Reading 63
104. Effects of Volatility Change
on an Option’s Price
Higher volatility of the underlying asset value increases the value of both put and
call options
Higher volatility increases the possible upside value and downside value of the
underlying asset
-Upside advantage helps calls but at the same time does not hurt the puts
-Downside effect helps the puts but does not hurt calls
Study Session 17, Reading 63
105. Swap Contracts
Swaps are a series of fixed or variable payments, otherwise described as a series of
forward contracts
No upfront payment and has zero value at the initiation
Customized contracts and are typically over the counter instruments
Only the net payments between parties are made. The difference owed by one
party is paid to the other since the payments are made in the same currency.
However, currency swaps are an exception to this rule as full interest payments are
made in currency swaps.
Study Session 17, Reading 64
106. Termination of Swap Contracts
Termination date is specified
Usually the final payment is the termination
Original time to maturity is also called the tenor of the swap
Study Session 17, Reading 64
107. Termination of Swap Contracts
Termination can be undertaken by paying or receiving the market value from the
counter party. This can only be undertaken if specified by both parties in advance.
A swap can also be sold to another party in order to terminate the position
A swaption is also a way to terminate the swap. It is an option to enter into a swap
in the future.
Study Session 17, Reading 64