Cummins Inc (CMI) Historical Volatility

Tracking CMI historical volatility helps you see how much Cummins Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Cummins Inc's HV tells you what really happened. Use our scanner to monitor CMI 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The CMI 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Cummins Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

Cummins Inc. designs, manufactures, distributes, and services diesel and natural gas engines, electric and hybrid powertrains, and related components worldwide. It operates through five segments: Engine, Distribution, Components, Power Systems, and New Power. The company offers diesel and natural gas-powered engines under the Cummins and other customer brands for the heavy and medium-duty truck, bus, recreational vehicle, light-duty automotive, construction, mining, marine, rail, oil and gas, defense, and agricultural markets; and offers new parts and services, as well as remanufactured parts and engines.

It also provides power generation systems, high-horsepower engines, heavy and medium duty engines, application engineering services, custom-designed assemblies, retail and wholesale aftermarket parts, and in-shop and field-based repair services. In addition, the company offers emission solutions; turbochargers; air and fuel filters, fuel water separators, lube and hydraulic filters, coolants, fuel additives, and other filtration systems; and electronic control modules, sensors, and supporting software, as well as new, replacement, and remanufactured fuel systems. Further, it provides automated transmissions; standby and prime power generators, controls, paralleling systems, and transfer switches, as well as A/C generator/alternator products under the Stamford and AVK brands; and electrified power systems with components and subsystems, including battery, fuel cell, and hydrogen production technologies. Additionally, it offers filtration, aftertreatment, controls systems, air handling systems, automated transmissions, electric power generation systems, and batteries. The company sells its products to original equipment manufacturers, distributors, dealers, and other customers. The company was formerly known as Cummins Engine Company and changed its name to Cummins Inc. in 2001. Cummins Inc. was founded in 1919 and is headquartered in Columbus, Indiana.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Cummins Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CMI HV is running hot, cold, or in line. Make the CMI 30 day historical volatility — and every other window — work for your edge instead of against it.