Tracking CENX historical volatility helps you see how much Century Aluminum 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, Century Aluminum Co's HV tells you what really happened. Use our scanner to monitor CENX 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 CENX 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Century Aluminum 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.
Century Aluminum Company, together with its subsidiaries, produces standard-grade and value-added primary aluminum products in the United States and Iceland. It also owns and operates a carbon anode production facility in the Netherlands. The company was incorporated in 1981 and is headquartered in Chicago, Illinois.
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 Century Aluminum Co's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where CENX HV is running hot, cold, or in line. Make the CENX 30 day historical volatility — and every other window — work for your edge instead of against it.
