PUT ON A CALL

One of the four types of compound options, this is a "put" option on an underlying "call" option. The buyer of a put on a call has the right but not the obligation to sell the underlying call option on the expiration date. This type of option is used when leverage is desired, and the trader is bearish on the underlying asset. The value of a put on a call changes in inverse proportion to the price of the underlying asset, i.e. it decreases as the asset price increases, and increases as the asset price decreases.