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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.
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
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.
Options expire, and when they do, the opportunity to trade them is over. Options can expire worthless – many do – but traders can’t buy and hold options for long periods, as they can stocks.
The options trader makes a profit of $200, or the $400 option value (100 shares * 1 contract * $4 value at expiration) minus the $200 premium paid for the call.
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. While such events ...
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 ...
Put option: A put option gives its buyer the right, but not the obligation, to sell a stock at the strike price prior to the expiration date. When you buy a call or put option, you pay a premium ...