Northwest Natural Holding Co

NWNNYSE · USD
46.80USD-0.24 (-0.51%)
677

Northwest Natural Holding Co (NWN) Historical Volatility

NWN 30-day historical volatility is 15%. This ranks in the 4th percentile of readings over the past year.

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

Northwest Natural Holding Company, through its subsidiary, Northwest Natural Gas Company, provides regulated natural gas distribution services to residential, commercial, industrial, and transportation customers in Oregon and Southwest Washington. The company also operates 5.7 billion cubic feet of the Mist gas storage facility contracted to other utilities and third-party marketers; offers natural gas asset management services; and operates an appliance retail center. In addition, it engages in the gas storage, water, non-regulated renewable natural gas, and other investments and activities. The company provides natural gas service through approximately 786,000 meters in Oregon and southwest Washington; and water services to a total of approximately 80,000 people through approximately 33,000 water and wastewater connections in the Pacific Northwest and Texas.

Northwest Natural Holding Company was founded in 1859 and is headquartered in Portland, Oregon.

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

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 25, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 25, 2026

See how volatility has moved over time

Track NWN historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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