Call Option Gamma Exposure

Call option gamma exposure refers to the sensitivity of an option's delta to changes in the underlying asset price. As the underlying price moves toward the strike price of a call option, the delta increases, forcing market makers to buy more of the underlying asset to remain delta-neutral.

This creates a feedback loop where rising prices trigger further buying, potentially accelerating a move through a price ceiling. However, if the price exceeds the strike significantly, the gamma profile changes, and market makers may begin to unwind positions.

This phenomenon is a critical component of market microstructure, as it directly influences order flow and price stability. Options dealers often hedge their books based on these gamma profiles, which can create artificial support or resistance levels.

Understanding gamma exposure allows traders to anticipate sudden bursts of volatility or the stabilization of price ranges. It is a fundamental concept for managing risk in complex derivatives portfolios.