Selling option puts
Client can define the Profit strike level by the distance from the contract opening price (distance is calculated from Ask price for CALL options and from Bid price for PUT options). Loss strike level is automatically set in the opposite direction to Profit strike level on the same distance from the Ask price for Call options and from the Bid price for Put options at the moment when the option contract starts (turns to EXECUTING status).
Maturing at a price that exactly matches the strike (but does not go under or above) is considered as an Out-of-the-money (OTM) outcome. If the option's underlying instrument price at any time prior to the expiry should reach or exceed the Loss strike level, it is considered as an Out-of-the-money (OTM) outcome.