In the online binary options industry, where the contracts are sold by a broker to a customer in an OTC manner, a different option pricing model is used. Brokers sell binary options at a fixed price (e.g., $100) and offer some fixed percentage return in case of in-the-money settlement. Some brokers, also offer a sort of out-of-money reward to a losing customer. For example, with a win reward of 80%, out-of-money reward of 5%, and the option price of $100, two scenarios are possible. In-the-money settlement pays back the option price of $100 and the reward of $80. In case of loss, the option price is not returned but the out-of-money reward of $5 is granted to the customer.[21]

Binary options are based on a yes or no proposition. Your profit and loss potential are determined by your buy or sell price, and whether the option expires worth $100 or $0. Risk and reward are both capped, and you can exit an options at any time before expiry to lock in a profit or reduce a loss. Binary options within the U.S are traded via the Nadex and CBOE exchanges. Foreign companies soliciting U.S. residents to trade their form of binary options are usually operating illegally. Binary options trading has a low barrier to entry, but just because something is simple doesn't mean it'll be easy to make money with. There is always someone else on the other side of the trade who thinks they're correct and you're wrong. Only trade with capital you can afford to lose, and trade a demo account to become completely comfortable with how binary options work before trading with real capital. 
Binary options "are based on a simple 'yes' or 'no' proposition: Will an underlying asset be above a certain price at a certain time?"[20] Traders place wagers as to whether that will or will not happen. If a customer believes the price of an underlying asset will be above a certain price at a set time, the trader buys the binary option, but if he or she believes it will be below that price, they sell the option. In the U.S. exchanges, the price of a binary is always under $100.[20]
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