In finance, moneyness is the relative position of the current price (or future price) of an underlying asset (e.g., a stock) with respect to the strike price of a derivative, most commonly a call option or a put option. Moneyness is firstly a three-fold classification:
- If the derivative would have positive intrinsic value if it were to expire today, it is said to be in the money (ITM);
- If the derivative would be worthless if expiring with the underlying at its current price, it is said to be out of the money (OTM);
- And if the current underlying price and strike price are equal, the derivative is said to be at the money (ATM).
There are two slightly different definitions, according to whether one uses the current price (spot) or future price (forward), specified as "at the money spot" or "at the money forward", etc.