Option Greeks measure how Cummins Inc (CMI) option prices respond to changes in the stock price (delta and gamma), the passage of time (theta), implied volatility (vega), and interest rates (rho). These charts plot each Greek by strike, so you can see where an expiration's price risk, time decay, and volatility exposure are concentrated. CMI implied volatility is in the lower part of its one-year range, which keeps delta and gamma in a narrower range of strikes than usual.
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CMI Option Greeks FAQ
What are option Greeks?
Option Greeks measure how an option's price responds to changes in the stock price (delta and gamma), time (theta), implied volatility (vega), and interest rates (rho).
How do I read the CMI Greeks charts?
Gamma, theta, and vega are largest for strikes near the Cummins stock price and shrink for strikes far above or below it. Theta grows as expiration gets closer, while vega is larger for expirations further out. Call delta runs from 0 to 1 and put delta from -1 to 0, near 0.50 and -0.50 at the money, and roughly estimates the chance that an option finishes in the money.
How does implied volatility affect CMI's Greeks?
Cummins IV rank is 31, so implied volatility is in the lower part of its one-year range. Higher implied volatility raises option premiums and daily time decay (theta), and spreads delta and gamma across a wider range of strikes. Over the past year, 30-day implied volatility ranged from 23.4% to 108.1%. See the CMI implied volatility history for a longer view.
How much gamma and delta do CMI options carry in total?
Across all open Cummins options on Nov 4, 2026, net gamma exposure was -$2.1M and net delta exposure was -$138.22M per 1% move in the stock. The CMI gamma exposure chart shows where that gamma sits by strike.
What is Cummins Inc?
Cummins is a leading manufacturer of diesel and other engines used in heavy- and medium-duty commercial trucks, off-highway equipment, and locomotives, in addition to prime power and standby generators.