Binary Option

A binary option is a financial product where the parties involved in the transaction are assigned one of two outcomes based on whether the option expires in the money. Binary options depend on the outcome of a "yes or no" proposition, hence the name "binary." Traders receive a payout if the binary option expires in the money and incur a loss if it expires out of the money.

Binary options have an expiry date and/or time. At the time of expiry, the price of the underlying asset must be on the correct side of the strike price (based on the trade taken) for the trader to make a profit.

A binary option automatically exercises, meaning the gain or loss on the trade is automatically credited or debited to the trader's account when the option expires. That means the buyer of a binary option will either receive a payout or lose their entire investment in the trade—there is nothing in between. Conversely, the seller of the option will either retain the buyer's premium, or be required to make the full payout.

A binary option may be as simple as whether the share price of ABC will be above $25 on April 22, 2021, at 10:45 a.m. The trader makes a decision, either yes (it will be higher) or no (it will be lower). 

Let's say the trader thinks the price will be trading above $25 on that date and time and is willing to stake $100 on the trade. If ABC shares trade above $25 at that date and time, the trader receives a payout per the terms agreed. For example, if the payout was 70 per cent, the binary broker credits the trader's account with $70.

If the price trades below $25 at that date and time, the trader was wrong and loses their $100 investment in the trade.

A vanilla American option gives the holder the right to buy or sell an underlying asset at a specified price on or before the expiration date of the option. A European option is the same, except traders can only exercise that right on the expiration date. Vanilla options, or just options, provide the buyer with potential ownership of the underlying asset. When buying these options, traders have fixed risk, but profits vary depending on how far the price of the underlying asset moves.

Binary options differ in that they don't provide the possibility of taking a position in the underlying asset. Binary options typically specify a fixed maximum payout, while the maximum risk is limited to the amount invested in the option. Movement in the underlying asset doesn't impact the payout received or loss incurred.

The profit or loss depends on whether the price of the underlying is on the correct side of the strike price. Some binary options can be closed before expiration, although this typically reduces the payout received (if the option is in the money). 

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