Gentex Corp (GNTX) Historical Volatility

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

Gentex Corporation designs, develops, manufactures, markets, and supplies digital vision, connected car, dimmable glass, and fire protection products in the United States, Germany, Japan, Mexico, and internationally. It operates through Automotive Products and Other segments. The company offers automotive products, including interior and exterior electrochromic automatic-dimming rearview mirrors, automotive electronics, and non-automatic-dimming rearview mirrors for automotive passenger cars, light trucks, pick-up trucks, sport utility vehicles, and vans for original equipment manufacturers, automotive suppliers, and various aftermarket and accessory customers.

It also provides variable dimmable windows to aircraft manufacturers and airline operators. In addition, the company offers photoelectric smoke detectors and alarms, electrochemical carbon monoxide alarms and detectors, audible and visual signaling alarms, and bells and speakers used in fire detection systems in office buildings, hotels, and other commercial and residential buildings, as well as researches and develops nanofiber chemical sensing products. The company sells its fire protection products directly, as well as through sales managers and manufacturer representative organizations to fire protection and security product distributors, electrical wholesale houses, and original equipment manufacturers of fire protection systems. Gentex Corporation was incorporated in 1974 and is headquartered in Zeeland, Michigan.

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