Put option

A put option gives its holder the right, but not the obligation, to sell an underlying asset at a specified price by a specified date. Its value generally rises when the asset price falls.

Strike price: The fixed price at which an option holder can buy or sell the underlying asset. A put lets its holder sell at this price.
Protective put: A strategy that pairs ownership of an asset with a put option on it. The put limits losses on an asset already held.
Call option: A contract giving its holder the right, but not the obligation, to buy an underlying asset at a specified price by a specified date. A call grants the right to buy, whereas a put grants the right to sell.
Option (finance): A financial derivative giving its holder a right to transact in an underlying asset under specified terms. A put is one of the two basic option types.
Expiration date: The final date on which an option can be exercised or remains valid. It sets the deadline for exercising the right to sell.
Cash-secured put: A strategy that sells a put while reserving enough cash to buy the underlying at the strike. The seller accepts a possible purchase in exchange for the option premium.
Forward contract: A customized agreement requiring two parties to exchange an asset at a set price on a future date. Unlike a put, a forward binds both parties to the future transaction.
Underlying (finance): The asset, rate, or other reference variable on which a derivative's value depends. Changes in this reference determine a put's payoff and market value.
Intrinsic value: The amount an option would be worth if exercised immediately, excluding time value. For a put, it is the excess of the strike over the asset price, if positive.
Married put: A position combining a newly purchased asset with a put option on that asset. It establishes downside protection at the time the asset is acquired.

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