How Does the Delta of a Naked Call Option Change as the Underlying Asset’s Price Increases?

Delta measures the option price's sensitivity to a one-unit change in the underlying asset's price. For a long call option, Delta is positive and moves from near 0 to near 1 as the option moves deeper in-the-money.

For a naked (short) call option, the Delta is negative. As the underlying price increases, the magnitude of the negative Delta increases (moves from near 0 to near -1), indicating a faster loss per unit price increase.