Constellation Energy Corp
Constellation Energy Corp (CEG) Historical Volatility
CEG 30-day historical volatility is 38%. This ranks in the 15th percentile of readings over the past year.
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Tracking CEG historical volatility helps you see how much Constellation Energy Corp'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, Constellation Energy Corp's HV tells you what really happened. Use our scanner to monitor CEG 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 CEG 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Constellation Energy Corp'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.
Constellation Energy Corporation generates and sells electricity in the United States. The company operates through five segments: Mid-Atlantic, Midwest, New York, ERCOT, and Other Power Regions. It sells natural gas, renewable energy, and other energy-related products and services. The company has 32,400 megawatts of generating capacity consisting of nuclear, wind, solar, natural gas, and hydroelectric assets. It serves distribution utilities; municipalities; cooperatives; and commercial, industrial, governmental, and residential customers. The company was incorporated in 2021 and is headquartered in Baltimore, Maryland.
Constellation Energy Corporation was formerly a subsidiary of Exelon Corporation.
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 Constellation Energy Corp's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CEG HV is running hot, cold, or in line. Make the CEG 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 28, 2026
As of September 28, 2026
See how volatility has moved over time
Track CEG historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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