Options Greeks Calculator
Measure sensitivity to price, time, volatility, and rates for a single option contract.
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How to read the Greeks
Delta estimates how much option value changes for a $1 move in the stock. Gamma shows how quickly Delta changes. Theta estimates daily time decay. Vega measures sensitivity to implied volatility. Rho measures sensitivity to interest rates.
Traders use these metrics for hedging, position sizing, and comparing near-term versus longer-dated contracts. Theta is usually most painful for long premium positions close to expiration, while Vega matters more around earnings or macro events.
Educational only. Greeks change continuously with price, volatility, and time. Real positions may include assignment, liquidity, and skew risk.