In finance, Forwards, Futures, and Options are a derivative financial instrument, because of the price or value of them taken from the provisions of a contract between two parties regarding the purchase or sale of an asset at a reference price during a certain period. During that time, buyers of the benefits right choice, but not the obligation, to engage in some specific transactions in assets, while the seller bears the obligation to fulfill the transaction if requested by the buyer. Underlying asset option price is generally derived from a stock, bond, currency or futures contract, plus a premium is usually called the Underlying Asset.
An option is a contract giving the buyer the right, but not the obligation, to buy or sell an underlying asset (a stock or index) at a specific price on or before a certain date.
An option is a derivative. That is, its value is derived from something else. In the case of a stock option, its value is based on the underlying stock (equity). In the case of an index option, its value is based on the underlying index (equity).
An option is a security, just like a stock or bond, and constitutes a binding contract with strictly defined terms and properties.