Option

An option is a contract to buy or sell a specific financial product .Options are financial instruments that convey the right, but not the obligation, to engage in a future transaction on some underlying security, or in a futures contract. The option is traded both on OTC and in the Exchange.A call option gives the holder the right to buy the underlying assert by certain date for a certain price.A put option gives the holder the right to sell the underlying assert by certain date for a certain price.The Price in the contract is known as strike price,the date in the contract is known as the maturity.

The theoretical value of an option can be determined by a variety of techniques. These models, which are developed by quantitative analysts, can also predict how the value of the option will change in the face of changing conditions. Hence, the risks associated with trading and owning options can be understood and managed with some degree of precision compared to some other investments.

Types of options

Exchange traded options are a class of exchange traded derivatives. Since the contracts are standardized, accurate pricing models are often available.

Over-the-counter options (OTC ) are traded between two private parties, and are not listed on an exchange. The terms of an OTC option are unrestricted and may be individually tailored to meet any business need.


Option styles
* European option - an option that may only be exercised on expiration.
* American option - an option that may be exercised on any trading day on or before expiration.
* Bermudan option - an option that may be exercised only on specified dates on or before expiration.
* Barrier option - any option with the general characteristic that the underlying security's price must reach some trigger level before the exercise can occur.

There are 4 types of option positions:
*A long position in call option
* A long position in put option
* A short position in call option
* A short position in put option