Gamma Hedging
Gamma hedging is a strategy used by options traders to manage the risk associated with changes in an option's delta as the underlying asset price moves. Gamma represents the rate of change of delta, and high gamma means that delta changes rapidly, making the position sensitive to price swings.
To remain delta neutral, a trader must frequently adjust their hedge by buying or selling the underlying asset as the gamma changes. This process is essential for market makers and those managing large derivative portfolios to avoid unexpected exposure.
It requires a constant, automated approach to ensure that the portfolio remains within defined risk parameters. While it provides protection against price volatility, it also incurs transaction costs due to the frequent rebalancing required.
Gamma hedging is a cornerstone of professional risk management, ensuring that derivative positions do not become dangerously unbalanced during market movements.