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Options Greeks Calculator
Delta, Gamma, Theta, Vega, Rho — sensitivity of option price.
Enter values to see your result
Frequently asked questions
What is Delta?
Sensitivity to spot. Call delta 0–1 (ATM ~0.5). Put delta -1 to 0. A 0.4 delta means option moves ₹0.40 per ₹1 spot move.
Theta decay — how bad is it?
Worst in last 30 days before expiry. ATM options lose ~2–4% of value per day in final week. Weekly options decay faster.
Vega — what affects it?
Time to expiry and ATM proximity. Long-dated ATM options have highest vega. Earnings/events inflate vega.
What is Gamma?
Rate of change of delta. High gamma = delta swings quickly. ATM options have highest gamma near expiry — "gamma squeeze" is this effect on steroids.