Contract-for-difference (CFD) between the transaction and the asset value without the transfer of the underlying asset. It is true that such a new business, which has not yet been subject to any legal and juridical review, will face doubts in terms of legitimacy. If what is given as a change is the increase in the value of the subject of the transaction, it is a matter of the intangible nature of the transaction, and that the price and value of the subject are not known at the time of execution, it is a doubtfulness of the gambling and the existence of ignorance and ignorance. The present study answers all possible controversies and suggests that, on the one hand, CFDs do not pay an additional amount for the same subject, but at the end of a CFD, that issue really has a value and a price more than its beginning. However, the change in the value of the subject of the transaction is not a function of pure-chance and probability, but is entirely based on logical and mathematical reasoning and real-market motion. Therefore, it is not only gamble, but even ignorant, this ignorance is required by most Imamie-jurisprudents Therefore, given the great benefits of this business, the recognition of the nature, and the establishment of new laws relating to It is essential.