TXNM Energy Inc (TXNM) Historical Volatility

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

TXNM Energy, Inc., through its subsidiaries, provides electricity and electric services in the United States. It operates through Public Service Company of New Mexico (PNM) and Texas-New Mexico Power Company (TNMP) segments. The PNM segment engages in the generation, transmission, and distribution of electricity. The segment owns and leases communications, office and other equipment, office space, vehicles, and real estate. It generates electricity using coal, natural gas and oil, and nuclear fuel and waste, as well as solar, wind, geothermal, and battery storage energy sources. The TNMP segment provides regulated transmission and distribution services.

The segment also owns and leases vehicles, service facilities, and office locations throughout its service territory. The company serves residential, commercial, and industrial customers and end-users of electricity in New Mexico and Texas. The company was formerly known as PNM Resources, Inc and changed its name to TXNM Energy, Inc. in August 2024. TXNM Energy, Inc. was founded in 1882 and is based in Albuquerque, New Mexico.

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