502-8 Derivatives Flashcards
Define the following term related to options: premium
The premium is the market price of the option (i.e., the price paid by the option buyer to the option seller). Although an option premium may be stated as $3, for example, it represents a price of $300. The premium is stated on a per-share basis, but there are 100 shares in an option contract.
Define the following term related to options: expiration date
The expiration date is the last date on which an option can be exercised. The standard options expiration date is the third Friday of each month. For most options, the latest expiration date possible is the end of the furthest three-month interval—a maximum of nine months. (However, there are some options that have expiration dates of from one to three years.)
Define the following term related to options: intrinsic value
The intrinsic value of an option is the difference between the current market price of the underlying stock and the per-share exercise price (or strike price) of the option. It represents the true value of the option. The current market price of an option (its premium) is greater than its intrinsic value. When the intrinsic value is zero, the option will still sell for a premium (its time premium only), assuming it is still marketable.
Define the following term related to options: time premium
The time premium is the amount by which an option’s price (premium) exceeds its intrinsic value.
Total premium = Intrinsic value + Time premium
Define the following term related to options: exercise price
The exercise (or strike) price is the per-share price at which the stock may be purchased (in the case of buying a call) or sold (in the case of buying a put). The option’s intrinsic value is positive (in the money) when the strike price is lower than the stock’s current market value (for a call option); for a put option, the intrinsic value is positive when the strike price is higher than the stock’s current market value.
What is a call option, and how is its intrinsic value determined?
A call option is an option to buy 100 shares of stock at a specified price (the strike price) on or before a specified expiration date. The intrinsic value of a call option is the current market price of the stock minus the per-share exercise price (strike price) of the option. For example, if a stock’s current market price is $42 and the call’s exercise price is $40, the option’s intrinsic value is $2 ($42 – $40).
Under what circumstances does a call have a positive intrinsic value? Under what circumstances does it have no intrinsic value?
A call has a positive intrinsic value when the stock’s current market price exceeds the per-share exercise price. A call with a positive intrinsic value is said to be “in the money.” A call has a zero intrinsic value when the exercise price equals or exceeds the stock’s current market price. The intrinsic value of a call increases as the current market price of the stock increases above the strike price. If the common stock is selling for a current market price that equals the strike price, the call option is “at the money.” If the stock’s current market price is less than the exercise price, the call option is “out of the money
What is a put option, and how is its intrinsic value determined?
A put option is an option to sell 100 shares of stock at a specified price (the strike price) at any time before a specified expiration date. The intrinsic value of a put option is the exercise price of the option minus the current market price of the stock. For example, if a stock’s current market price is $47 and the put’s exercise price is $50, the intrinsic value of the option is $3 ($50 – $47). The intrinsic value of a put increases as the current market price of the stock decreases below the strike price.
Under what circumstances does a put have a positive intrinsic value? Under what circumstances does it have no intrinsic value?
A put has a positive intrinsic value when the exercise price exceeds the stock’s current market price. A put with a positive intrinsic value is “in the money.” If the current market price of the stock is greater than the strike price, the put has zero intrinsic value; it is “out of the money.” If the current market price of the stock equals the strike price, the put is “at the money.”
Why does an individual purchase a call?
If investors expect a stock’s market price to rise, they purchase calls because the premium of a call and the price of its common stock move in the same direction. Calls permit investors to use leverage to speculate on a rise in the common stock price without buying the stock itself. Using calls reduces the initial cash outlay, specifies the maximum dollar loss that may be suffered (the premium), and provides the potential for maximum leverage. Calls are also purchased to protect a short sale. If the stock price rises, the call can be exercised and stock can be acquired to cover the short sale.
Why does an individual write (sell) a call?
Call writers seek the premium income. The writer (seller of the option right) profits by the amount of the premium. Unlike call purchasers, call writers primarily expect the stock price to fall slightly or remain stable. Some options writers may want the call exercised if a capital gain exists in the underlying stock and they are satisfied with the gain they would have if the stock were called away. If an individual writes a “covered call,” whereby a call is written on stock owned by the call writer, the motivation might be to offset, to the extent of the premium, a decline in the stock’s price.
How does writing a covered call differ from writing a naked call?
Writing a call without owning the underlying stock is called “naked call writing.” The risk is that if the price of the stock rises, the writer of the option will have to buy stock at the higher market price in order to supply the stock to the option buyer at the lower strike price. Therefore, naked call writing is more risky than covered call writing. The maximum profit is the option premium received, and the loss is theoretically unlimited, as theoretically there is no limit to how high a stock’s price could go.
A more conservative method of writing a call is to buy the stock first and then write the option (a covered call). If the option is exercised, the call seller uses the previously purchased stock to “cover” the exercised option. The hope is that the price of the underlying stock will not exceed the option’s strike price. If the price of the underlying stock does move ahead of the strike price, the call writer’s profit is limited to the premium income from the sale of the call plus any difference between the original purchase price of the stock and its strike price. On the other hand, the option premium that is received helps to cushion a loss from a decline in the stock price (long position), but only to the extent of the premium.
Why does an individual purchase a put?
An investor buys a put when he or she believes that the price of the underlying stock will fall. If the value of the stock does decline, the put owner can purchase the stock at a lower price and deliver it to the writer of the put at the higher exercise price, making a profit on the difference. The purchase of puts provides leverage, which can magnify gains. The maximum loss is the premium paid.
How do purchases of puts and short sales compare?
The purchaser of a put option anticipates that the price of the underlying stock is going to decline; so does the investor who sells stock short. Puts offer more leverage (short sellers have a minimum margin requirement that must be met), and puts have a definite time frame. With a short sale, the investor has no time constraint—a period in which the price of the stock must decline in order for the short sale to be profitable. Unlike the execution of a short sale, purchasing a put option does not subject the investor to a large potential capital loss because the most the investor can lose is the premium paid for the option. A short sale ties up more money than does the purchase of a put.
Why does an individual write (sell) a put?
Writers (sellers) of puts want the premium income. Put writers believe that the price of the underlying stock will remain relatively stable or will rise.