Halliburton Co (HAL) Historical Volatility

Tracking HAL historical volatility helps you see how much Halliburton Co'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, HAL's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor HAL 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. HAL's 30 day historical volatility, or HAL HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing HAL'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.

Halliburton Company provides products and services to the energy industry worldwide. It operates in two segments, Completion and Production, and Drilling and Evaluation. The Completion and Production segment offers production enhancement services that include stimulation and sand control services; cementing services, such as well bonding and casing, and casing equipment; completion tools that offer downhole solutions and services, including well completion products and services, intelligent well completions, and service tools, as well as liner hanger, sand control, and multilateral systems; production solutions comprising coiled tubing, hydraulic workover units, downhole tools, and pumping and nitrogen services; and pipeline and process services, such as pre-commissioning, commissioning, maintenance, and decommissioning.