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Market prices that have risen too steeply and too quickly.

Market prices that have declined too steeply and too quickly.

A set pattern of months when a class of options expires.

The buyer of an option contract who has the right to exercise the option during its lifetime.

An individual option contract for a given security.

A call or put contract.

Not the same as operating income. See pro forma earnings. 

Sales minus all expenses except income taxes and other items not related to basic business.

Operating income divided by sales.

All options of the same type, either calls or puts, that have the same underlying security.