Generac Holdings Inc (GNRC) Historical Volatility

Tracking GNRC historical volatility helps you see how much Generac Holdings 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, Generac Holdings Inc's HV tells you what really happened. Use our scanner to monitor GNRC 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 GNRC 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Generac Holdings 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.

Generac Holdings Inc. designs, manufactures, and sells power generation equipment, energy storage systems, and other power products for the residential, and light commercial and industrial markets worldwide. The company offers engines, alternators, batteries, electronic controls, steel enclosures, and other components. It also provides residential automatic standby generators ranging in output from 7.5kW to 150kW; air-cooled engine residential standby generators ranging from 7.5kW to 26kW; liquid-cooled engine generators with outputs ranging from 22kW to 150kW; and Mobile Link, a remote monitoring system for home standby generators.

In addition, the company offers various portable generators ranging in size from 800W to 17.5kW; outdoor power equipment, such as trimmers, field and brush mowers, log splitters, stump grinders, chipper shredders, lawn and leaf vacuums, pressure washers, and water pumps; and clean energy solution under the PWRcell and PWRview brands. Further, it provides light towers, mobile generators, and mobile energy storage systems; commercial mobile pumps and dust-suppression equipment; various gaseous-engine control systems and accessories; light-commercial standby generators ranging from 22kW to 150kW and related transfer switches providing three-phase power for small and mid-sized businesses; and industrial generators ranging in output from 10kW to 3,250kW used as emergency backup for healthcare, telecom, datacom, commercial office, retail, municipal, and manufacturing markets. Additionally, the company sells aftermarket service parts and product accessories to dealers. It distributes its products through independent residential dealers, industrial distributors and dealers, national and regional retailers, e-commerce partners, electrical, HVAC and solar wholesalers, catalogs, equipment rental companies and distributors, and solar installers; and directly to end users. The company was founded in 1959 and is headquartered in Waukesha, Wisconsin.

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 Generac Holdings Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where GNRC HV is running hot, cold, or in line. Make the GNRC 30 day historical volatility — and every other window — work for your edge instead of against it.