Enpro Inc (NPO) Historical Volatility

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

EnPro Industries, Inc. engages in the design, development, manufacture, marketing, and service of engineered industrial products in the United States, Europe, and internationally. It operates through three segments: Sealing Technologies, Advanced Surface Technologies, and Engineered Materials. The Sealing Technologies segment offers single-use hygienic seals, tubing, components and assemblies; metallic, non-metallic, and composite material gaskets; compression packing products; hydraulic components; expansion joints; wall penetration products; and dynamic, flange, resilient metal, elastomeric, and custom-engineered mechanical seals for chemical and petrochemical processing, pulp and paper processing, power generation, food and pharmaceutical processing, primary metal manufacturing, mining, water and waste treatment, heavy-duty trucking, aerospace, medical, filtration, and semiconductor fabrication industries.

This segment also provides aseptic fluid transfer products for the pharmaceutical and biopharmaceutical industries. The Advanced Surface Technologies segment offers cleaning, coating, testing, refurbishment, and verification services for critical components and assemblies used in semiconductor manufacturing equipment, as well as for critical applications in the space, aerospace, and defense markets; and specialized optical filters and thin-film coatings for various applications in the industrial technology, life sciences, and semiconductor markets. The Engineered Materials segment provides self-lubricating, non-rolling, metal polymer, engineered plastics, and fiber reinforced composite bearing products for various applications in the automotive, pharmaceutical, pulp and paper, natural gas, health, power generation, machine tools, air treatment, refining, petrochemical, and general industrial markets. The company was incorporated in 2002 and is headquartered in Charlotte, North Carolina.

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