A set of risk measures - delta, gamma, theta, vega, and rho - used to describe how an option's price reacts to different market factors.
The option Greeks are a group of risk sensitivities used to analyze how an option’s premium responds to changes in the underlying price, time, volatility, and interest rates. Delta tracks directional exposure, gamma tracks the rate of change of delta, theta tracks time decay, vega tracks volatility sensitivity, and rho tracks interest rate sensitivity. Traders use the Greeks together to understand and manage the overall risk profile of an options position or portfolio.
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