A set of risk measures for options: Delta (price sensitivity), Gamma (delta change rate), Theta (time decay), Vega (volatility sensitivity), and Rho (interest rate sensitivity). Used to understand and manage option position risk.
A trader checked that their portfolio had +200 delta, -15 theta, and +50 vega, meaning they were bullish, losing $15/day to time decay, and would benefit from rising volatility.
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