What are option Greeks?

Option Greeks are measures of the sensitivity of an option's price to various factors such as changes in the price of the underlying asset, the time to expiration, and changes in volatility. The most commonly used option Greeks are Delta, Gamma, Vega, Theta, and Rho. Delta measures the change in the price of an option relative to changes in the price of the underlying asset, Gamma measures the rate of change of delta with respect to changes in the underlying asset price, Vega measures the sensitivity of the option's price to changes in implied volatility, Theta measures the rate of time decay of an option's price as the time to expiration approaches, and Rho measures the sensitivity of an option's price to changes in interest rates. Option traders use these measures to help them make trading decisions and manage their risk exposures.