If the barrier is breached and the underlying closes at or below the strike level on the expiration date, investors will be fully exposed to the negative performance of the underlying on the expiration date. However the coupon amounts, which are paid independent of the development of the underlying, can
compensate to a certain degree for the decline in price of the underlying. A break-even, i.e. 0% return on investment (ROI), would occur if the p.a. coupon is equal to the relative decline in the underlying.