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In finance, the expiration date of an option contract (represented by Greek letter tau, τ) is the last date on which the holder of the option may exercise it according to its terms. [1] In the case of options with "automatic exercise", the net value of the option is credited to the long and debited to the short position holders.
When an option is exercised, the cost to the option holder is the strike price of the asset acquired plus the premium, if any, paid to the issuer. If the option's expiration date passes without the option being exercised, the option expires, and the holder forfeits the premium paid to the issuer.
A European option may be exercised only at the expiration date of the option, i.e. at a single pre-defined point in time. An American option on the other hand may be exercised at any time before the expiration date. For both, the payoff—when it occurs—is given by {(),}, for a call option
Some $5 trillion in U.S. stock options are set to expire on Friday, according to Asym500 MRA Institutional, a unit of derivatives strategy and execution firm Macro Risk Advisors.
When to use it: A bear put spread is an effective strategy when the stock is anticipated to fall by the options’ expiration. It can work if the stock is expected to fall significantly but can ...
Expiration: When the option expires and is settled. One option is called a contract, and each contract represents 100 shares of the underlying stock. Exchanges quote options prices in terms of the ...
The option style, as specified in the contract, determines when, how, and under what circumstances, the option holder may exercise it. It is at the discretion of the owner whether (and in some circumstances when) to exercise it. European – European-style option contracts may only be exercised at the option's expiration date. Thus they can ...
If an option is out-of-the-money at expiration, its holder simply abandons the option and it expires worthless. Hence, a purchased option can never have a negative value . [ 4 ] This is because a rational investor would choose to buy the underlying stock at the market price rather than exercise an out-of-the-money call option to buy the same ...