Tracking ETR historical volatility helps you see how much Entergy Corp's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, ETR's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor ETR 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 a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. ETR's 30 day historical volatility, or ETR HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing ETR's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.
Entergy Corporation, together with its subsidiaries, engages in the production and retail distribution of electricity in the United States. The company operates in two segments, Utility and Entergy Wholesale Commodities. The Utility segment generates, transmits, distributes, and sells electric power in portions of Arkansas, Louisiana, Mississippi, and Texas, including the City of New Orleans; and distributes natural gas. The Entergy Wholesale Commodities segment engages in the ownership, operation, and decommissioning of nuclear power plants; and ownership of interests in non-nuclear power plants that sell electric power to wholesale customers, as well as provides services to other nuclear power plant owners.
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