Hallador Energy Co (HNRG) Historical Volatility

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

Hallador Energy Company, through its subsidiaries, engages in the production of steam coal in the State of Indiana for the electric power generation industry. The company owns the Oaktown Mine 1 and Oaktown Mine 2 underground mines in Oaktown, Indiana; and Ace in the Hole mine located near Clay City, Indiana. It is also involved in gas exploration activities in Indiana. Hallador Energy Company was founded in 1949 and is headquartered in Terre Haute, Indiana.

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