© 2004 South-Western Publishing 1 Chapter 2 Basic Principles of Stock Options.
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Transcript of © 2004 South-Western Publishing 1 Chapter 2 Basic Principles of Stock Options.
© 2004 South-Western Publishing 1
Chapter 2
Basic Principles of Stock Options
2
Outline
What options are and where they come from
Why options are a good idea Where and how options trade Components of the option premium Where profits and losses come from with
options
3
What Options Are and Where They Come From
Call and put options Categories of options Standardized option characteristics Where options come from Opening and closing transactions The role of the options clearing corporation
4
Call and Put Options
Call Options– A call option gives its owner the right to buy; it is not a
promise to buy For example, a store holding an item for you for a fee is a
call option
Put Options– A put option gives its owner the right to sell; it is not a
promise to sell For example, a lifetime money back guarantee policy on
items sold by a company is an embedded put option
5
Categories of Options
An American option gives its owner the right to exercise the option anytime prior to option expiration
A European option may only be exercised at expiration
6
Categories of Options (cont’d)
Options giving the right to buy or sell shares of stock (stock options) are the best-known options– An option contract is for 100 shares of stock
The underlying asset of an index option is some market measure like the S&P 500 index– Cash-settled
7
Standardized Option Characteristics
Expiration dates– The Saturday following the third Friday of certain
designated months for most options Striking price
– The predetermined transaction price, in multiples of $2.50 or $5, depending on current stock price
Underlying Security– The security the option gives you the right to buy or
sell– Both puts and calls are based on 100 shares of the
underlying security
8
Standardized Option Characteristics (cont’d)
The option premium is the amount you pay for the option
Exchange-traded options are fungible– For a given company, all options of the same
type with the same expiration and striking price are identical
9
Identifying An Option
Microsoft OCT 80 Call
Expiration (3rd Friday in October) Type of option
Underlying asset (Microsoft common stock)
Strike price ($80 per share)
10
Where Options Come From
Unlike more familiar securities, there is no set number of put or call options– The number in existence changes every day
11
Opening and Closing Transactions
The first trade someone makes in a particular option is an opening transaction for that person
When the individual subsequently closes that position out with a second trade, this latter trade is a closing transaction
12
Opening and Closing Transactions (cont’d)
When someone buys an option as an opening transaction, the owner of an option will ultimately do one of three things with it:– Sell it to someone else– Let it expire– Exercise it
For example, buying a ticket to an athletic event
13
Opening and Closing Transactions (cont’d)
When someone sells an option as an opening transaction, this is called writing the option– No matter what the owner of an option does, the
writer of the option keeps the option premium that he or she received when it was sold
14
The Role of the Options Clearing Corporation (OCC)
The Options Clearing Corporation (OCC) contributes substantially to the smooth operation of the options market– It positions itself between every buyer and seller
and acts as a guarantor of all option trades– It sets minimum capital requirements and
provides for the efficient transfer of funds among members as gains or losses occur
15
Why Options Are a Good Idea
Increased risk Instantaneous information Portfolio risk management Risk transfer Financial leverage Income generation
16
Where and How Options Trade
Exchanges Over-the-counter options Standardized option characteristics Other listed options Trading mechanics
17
Exchanges
Major options exchanges in the U.S.:– Chicago Board Options Exchange (CBOE)– American Stock Exchange (AMEX)– Philadelphia Stock Exchange (Philly)– Pacific Stock Exchange (PSE)– International Securities Exchange (ISE)
Foreign options exchanges also exist
18
Over-the-Counter Options
With an over-the-counter option:– Institutions enter into “private” option
arrangements with brokerage firms or other dealers
– The striking price, life of the option, and premium are negotiated between the parties involved
Over-the-counter options are subject to counterparty risk and are generally not fungible
19
Some Exotic Options
As-You-Like-It Option– The owner can decide whether it is a put or a
call by a certain date Barrier Option
– Created or cancelled if a prespecified price level is touched
Forward Start Option– Paid for now, with the option becoming effective
at a future date
20
Other Listed Options
Long-Term Equity Anticipation Security (LEAP)– Options similar to ordinary listed options,
except they are longer term May have a life up to 39 months
– All LEAPs expire in January– Presently available on only the most active
underlying securities
21
Other Listed Options (cont’d)
FLEX option– Fundamentally different from an ordinary listed
option in that the terms of the option are flexible– Advantage of user flexibility while eliminating
counterparty risk– In general, a FLEX option trade must be for at
least 250 contracts
22
Trading Mechanics
Bid Price and Ask Price– There are two option prices at any given time:
Bid price: the highest price anyone is willing to pay for a particular option
Ask price: the lowest price at which anyone if willing to sell a particular option
23
Trading Mechanics (cont’d)
Types of orders– A market order expresses a wish to buy or sell
immediately, at the current price– A limit order specifies a particular price (or
better) beyond which no trade is desired Typically require a time limit, such as “for the day” or
“good ‘til canceled (GTC)”
24
Trading Mechanics (cont’d)
Trading Floor Systems– Under the specialist system, there is a single
individual through whom all orders to buy or sell a particular security must pass
Used at the AMEX and the Philly The specialist keeps an order book with limit order
from all over the country The specialist’s job is to maintain a fair and orderly
market
25
Trading Mechanics (cont’d)
Trading Floor Systems (cont’d)– Under the marketmaker system, the specialist’s
activities are divided among three groups of people:
Marketmakers Floor brokers Order Book Official
26
The Option Premium
Intrinsic value and time value Option price quotations
27
Intrinsic Value and Time Value
Intrinsic value is the amount that an option is immediately worth given the relation between the option striking price and the current stock price– For a call option, intrinsic value =
stock price – striking price– For a put option, intrinsic value =
striking price – stock price– Intrinsic value cannot be < zero
28
Intrinsic Value and Time Value (cont’d)
Intrinsic value (cont’d)– An option with no intrinsic value is out-of-the-
money– An option whose striking price is exactly equal
to the price of the underlying security is at-the-money
– Options that are “almost” at-the-money are near-the-money
29
Intrinsic Value and Time Value (cont’d)
Time value is equal to the premium minus the intrinsic value– As an option moves closer to expiration, its time
value decreases (time value decay)An option is a wasting asset
30
Option Price Quotations
Every service that reports option prices will show, at a minimum, the– Striking price– Expiration– Premium
31
Option Price Quotations (cont’d)
Intraday Prices from September 15, 2003
Microsoft Stock Price = $28.51
Strike Expiration
Call Put
Volume Last Open Interest Volume Last Open Interest
20 SEP 030
8.60 462 0 0 51
20 OCT 0 8.62 3079 0 0 13013
22.50 SEP 0 6.04 781 0 0 5920
22.50 OCT 0 6.06 7050 2 0.05 35024
32
Profits and Losses With Options
Understanding the exercise of an option Exercise procedures Profit and loss diagrams
33
Understanding the Exercise of an Option
An American option can be exercised anytime prior to the expiration of the option– Exercising an American option early amounts
to abandoning any time value remaining in the option
A European option can only be exercised at maturity
34
Exercise Procedures
Notify your broker Broker notifies the Options Clearing
Corporation– Selects a contra party to receive the exercise
notice– Neither the option exerciser nor the option
writer knows the identity of the opposite party
35
Exercise Procedures (cont’d)
The option premium is not a down payment on the purchase of the stock
The option holder, not the option writer, decides when and if to exercise
In general, you should not buy an option with the intent of exercising it
36
Profit and Loss Diagrams
Vertical axis reflects profits or losses on the expiration day resulting from a particular strategy
Horizontal axis reflects the stock price on the expiration day
Any bend in the diagram occurs at the striking price
By convention, diagrams ignore the effect of commissions that must be paid
37
Buying a Call Option (“Going Long”)
Example: buy a Microsoft October 25 call for $3.70 – Maximum loss is $3.70– Profit potential is unlimited– Breakeven is $28.70
38
Buying a Call Option (cont’d)
Breakeven = $28.70
0 20 40 60 80 100
Maximum
loss = $3.70
39
Writing a Call Option (“Short Option”)
Ignoring commissions, the options market is a zero sum game– Aggregate gains and losses will always net to
zero– The most an option writer can make is the
option premium Writing a call without owning the underlying
shares is called writing a naked (uncovered) call
40
Writing a Call Option (cont’d)
Breakeven = $28.70
Maximum
Profit = $3.700 20 40 60 80
100
41
Buying a Put Option (“Going Long”)
Example: buy a Microsoft April 25 put for $1.10– Maximum loss is $1.10– Maximum profit is $23.90– Breakeven is $23.90
42
Buying a Put Option (cont’d)
$23.90Breakeven
= $23.90
0 20 40 60 80 100
$1.10
43
Writing a Put Option (“Short Option”)
The put option writer has the obligation to buy if the put is exercised by the holder
44
Writing a Put Option (cont’d)
Breakeven = $23.90
$1.10
0 20 40 60 80 100
$23.90