Research Frontiers Inc
Research Frontiers Inc (REFR) Historical Volatility
REFR 30-day historical volatility is 182%. This ranks in the 100th percentile of readings over the past year.
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Tracking REFR historical volatility helps you see how much Research Frontiers 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, Research Frontiers Inc's HV tells you what really happened. Use our scanner to monitor REFR 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 REFR 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Research Frontiers 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.
Research Frontiers Incorporated develops and markets technology and devices to control the flow of light worldwide. The company develops and licenses suspended particle device (SPD-Smart) light-control technology to companies that manufacture and market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, and electronics to power end-products incorporating the film, as well as lamination services for and the end-products, such as windows, skylights, and sunroofs. Its SPD-Smart light-control technology is used in various product applications, including windows, sunshades, skylights, and interior partitions for homes and buildings; automotive windows, sunroofs, sun-visors, sunshades, rear-view mirrors, instrument panels, and navigation systems; aircraft windows; museum display panels, and eyewear products; and flat panel displays for electronic products.
The company serves architectural, automotive, marine, and aerospace and appliance applications. Research Frontiers Incorporated was incorporated in 1965 and is headquartered in Woodbury, New York.
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 Research Frontiers Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where REFR HV is running hot, cold, or in line. Make the REFR 30 day historical volatility — and every other window — work for your edge instead of against it.
As of October 27, 2026
As of October 27, 2026
See how volatility has moved over time
Track REFR historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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