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Knock-in Option

A knock-in option is a type of option that becomes active or "knocks in" to the market only when the price of the underlying asset reaches a predetermined trigger price. Until the trigger price is reached, the option remains dormant and has no value.

Knock-out Option

A knock-out option is a type of option that becomes inactive or "knocks out" of the market when the price of the underlying asset reaches a predetermined trigger price. When the trigger price is reached, the option is automatically exercised, and the trader either receives a payout or incurs a loss, depending on the terms of the option.