NPK International Inc (NPKI) Historical Volatility

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

NPK International Inc. provides products, rentals, and services primarily to the oil and natural gas exploration and production (E&P) industry. It operates through two segments, Fluids Systems and Industrial Solutions. The Fluids Systems segment provides drilling, completion, and stimulation fluids products and related technical services to customers primarily in the North America, Europe, the Middle East, and Africa, as well as other countries in the Asia Pacific and Latin America. The Industrial Solutions segment offers composite matting system rentals utilized for temporary worksite access; related site construction and services to customers in various markets, including power transmission, E&P, pipeline, renewable energy, petrochemical, construction, and other industries primarily in the United States and Europe; recyclable composite mats to customers worldwide; and access road construction, site planning and preparation, environmental protection, erosion control, and site restoration services.

The company was formerly known as Newpark Resources, Inc. and changed its name to NPK International Inc. in December 2024. The company was incorporated in 1932 and is headquartered in The Woodlands, Texas.

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