Individual shares go on in perpetuity (unless the corporation goes bust or is taken over). They do not "expire" as such.
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Options have expiration dates. This means that options are wasting assets in that the passage of time will erode that portion of the option's value as the expiration
date looms.
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Stockholders are the owners of the company and have voting rights. Stockholders are also entitled to dividend payments as and when they are paid.
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Options convey no rights of ownership of the underlying asset. They merely convey the right to buy or sell the underlying asset.
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