Negative Delta

Definition

Negative delta refers to an option’s delta value being less than zero, indicating an inverse relationship between the option’s price and the underlying asset’s price. For example, a short call option or a long put option typically exhibits negative delta. A delta of -0.50 means that for every one-unit increase in the underlying asset’s price, the option’s value is expected to decrease by 0.50 units, all else being equal. It quantifies price sensitivity.