This type of binary options is the most popular. What is the point of this type? If you think that a currency pair, for example EUR/USD, will be more expensive in 30 minutes, than it is at the moment, you put the option Above. If in specified time, the price indeed rises, at least at one point, then you will get profit automatically. If you believe that the price will be lower, you put the option Below. If upon the occurrence of the expiration price is reduced, you get profit.
The point of this option is that the trader analyzes and calculates whether a price can touch a predetermined price border for a certain period. You set a price mark at the level where you expect that over time a price will be able to touch this border. If a price touches it, you get a fixed percentage of profit. Even if eventually a chart starts to decline, you still get a profit.
This type of trade is used by many traders. It is often called as a “range option”. A trader calculates a price border and makes a forecast whether a price may go out the specified border at the expiry of the option or will remain within it. On this basis, a trader will receive a certain profit.