Greeks🔊noun/ɡɹiːks/1Business, Finance The quantities representing the sensitivity of the price of derivatives to a change in underlying parameters on which the value of an instrument or portfolio is dependent (so called because some are denoted by Greek letters).Hyponymsdelta, epsilon, lambda, rho, theta, vega, charm, gamma, vanna, vera, veta, vomma, color, colour, speed, ultima, zomma, correlation delta, cross gamma, cross vanna, cross volga