Boundary option

A binary-platform label for a High/Low or Up/Down contract based on whether price finishes above or below a reference level. It is not the exercise right in a conventional call or put option.

A broker-specific range contract decided by whether the final price ends inside or outside two barriers.

A common binary option that settles by whether price finishes above or below a reference level at expiry.

A boundary contract settled by whether the final price ends inside or outside a defined range.

A boundary contract based on whether price remains inside or outside a defined range throughout the contract period.

A contract whose outcome depends on what price does during the observation period, not only where it finishes.