Spire Inc

SRNYSE · USD
79.90USD0.00 (-0.40%)
667

Spire Inc (SR) Historical Volatility

SR 30-day historical volatility is 19%. This ranks in the 51th percentile of readings over the past year.

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

Spire Inc., together with its subsidiaries, engages in the purchase, retail distribution, and sale of natural gas to residential, commercial, industrial, and other end-users of natural gas in the United States. The company operates in two segments, Gas Utility and Gas Marketing. It is also involved in the marketing of natural gas. In addition, the company engages in the transportation of propane through its propane pipeline; compression of natural gas; risk management; and other activities. Further, it provides physical natural gas storage services. The company was formerly known as The Laclede Group, Inc.

and changed its name to Spire Inc. in April 2016. Spire Inc. was founded in 1857 and is based in St. Louis, Missouri.

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 Spire Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where SR HV is running hot, cold, or in line. Make the SR 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 16, 2026

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

As of September 16, 2026

See how volatility has moved over time

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

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