Gorman-Rupp Co (GRC) Historical Volatility

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

The Gorman-Rupp Company designs, manufactures, and sells pumps and pump systems in the United States and internationally. The company's products include self-priming centrifugal, standard centrifugal, magnetic drive centrifugal, axial and mixed flow, vertical turbine line shaft, submersible, high pressure booster, rotary gear, diaphragm, bellows, and oscillating pumps. Its products are used in water, wastewater, construction, dewatering, industrial, petroleum, original equipment, agriculture, fire protection, military, and other liquid-handling applications, as well as in heating, ventilating, and air conditioning applications.

The company markets its products through a network of distributors, manufacturers' representatives, third-party distributor catalogs, direct sales, and commerce. The Gorman-Rupp Company was founded in 1933 and is headquartered in Mansfield, Ohio.

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