Knock-in Option
A knock-in option is a type of barrier option that only becomes active if the underlying asset price hits a predetermined barrier level during the life of the contract. Before the barrier is touched, the option has no value or does not exist as a tradeable instrument.
Once the trigger condition is met, the option effectively becomes a standard vanilla option for the remainder of its term. This structure is often used by traders who believe a price move is likely but want to reduce the premium cost by deferring the activation of the contract.
In digital asset markets, these are used to hedge against sudden breakout moves or to speculate on trend-following scenarios. The risk for the holder is that the barrier may never be touched, causing the option to expire worthless.