What is Gamma (options)?

Overview

Gamma is an important concept in options trading that indicates the rate of change of delta, which measures how much an option's price is expected to change with a $1 change in the underlying asset's price. When the underlying asset's price moves, gamma tells traders how much more or less sensitive the option's delta will become. For example, if an option has a high gamma, its delta will increase significantly as the underlying asset's price moves closer to the strike price, leading to larger price swings in the option itself. Understanding gamma is crucial for investors because it helps them manage their portfolios and assess risk. A high gamma means that the option's price can become very volatile, which can lead to higher potential profits but also greater losses. For instance, if a trader holds an option with a high gamma and the underlying stock price moves sharply, they may need to adjust their position quickly to avoid unexpected losses. In the context of investing, gamma is particularly relevant for traders who use strategies such as hedging or speculating on price movements. By monitoring gamma, traders can make more informed decisions about when to buy or sell options. This awareness can enhance their ability to profit from market fluctuations while managing the risks associated with options trading.