It stands for up-and-out put; an up-and-out option that is deactivated if the price of the underlying exceeds a preset...

An up-and-out option that is deactivated if the price of the underlying exceeds a preset level. The outstrike (barrier price)…

A swaption which activates or comes into life when the swap coupon crosses a threshold level or “barrier”. It comes...

The specified interest rate, or any underlying price, that activates (knocks in) or deactivates (knocks out) a barrier option. The...