Tracking GRC historical volatility helps you see how much Gorman-Rupp Co's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, GRC's HV, also known as realized volatility, shows what actually 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 a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. GRC's 30 day historical volatility, or GRC HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing GRC's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.
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.
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