An abbreviation for in-the-money warrant; a warrant whose exercise price is below the price of its underlying at a given point in time. In other words, when the formula value (intrinsic value) of the warrant is bigger than zero, then it is said to be in-the-money. For example, if the exercise price of a particular warrant is $100 and the current price of its underlying stock is $110, then the warrant is $10 in-the-money.