Gamma Risk

Gamma risk refers to the exposure arising from changes in an option’s delta as the underlying asset price moves. Delta measures how much an option’s value changes with a small price movement in the underlying asset, while gamma measures how quickly that delta itself changes. High gamma implies that delta shifts rapidly, creating nonlinear risk.

In practical terms, gamma risk becomes significant in volatile markets or when options are near expiration or at-the-money. Traders managing option books must frequently rebalance hedges to remain delta-neutral, a process known as dynamic hedging. Failure to manage gamma risk can lead to large, unexpected losses if markets move sharply.

In energy markets, gamma risk is particularly relevant for options on oil, gas, and power, where prices can move rapidly due to weather, outages, or geopolitical events. Effective gamma management requires strong risk systems, liquidity access, and disciplined hedging strategies. Understanding gamma risk is essential for anyone trading or structuring options.