Delta

In short

A Greek that measures how much an option's price is expected to change for every ₹1 move in the underlying.

Updated Aug 9, 2026

Delta is one of the option Greeks and measures the rate of change of an option’s premium relative to a ₹1 move in the price of the underlying asset. Call options have a delta between 0 and 1, while put options have a delta between -1 and 0. Delta is also commonly used as an approximate probability that the option will expire in the money, and it is a key input for traders hedging directional exposure.

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