Basic purpose of this article is to Define and Discuss on Binary Option. Here explain Binary Option in portfolio finance point of view. There are numerous terms are used pertaining to binary trade option. Major two is Call options and Put options. Traders of binary options purchase it during their expectation of the cost of the actual resource to drive under the attack cost at a lot of duration of expiration. In binary option, while that they seem relatively new, they have been exchanged for well over the several years, though they were initially exchanged over the counter usually between two institutional traders, mostly protect funds along with investment financial brace workstations.