Argan Inc

AGXNYSE · USD
277.50USD+16.29 (+6.24%)
667

Argan Inc (AGX) Historical Volatility

AGX's 30 day historical volatility is 78.36%, in the 72nd percentile of readings over the past year. This is a high percentile, meaning Argan Inc shares have swung far more than usual. AGX's 30 day implied volatility sits at 91.03%, with an IV Rank of 92.06%, leaving IV 12.67 points above historical volatility. This means options are pricing in more movement than the stock has actually delivered, as of Nov 5, 2026.

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

Argan, Inc., through its subsidiaries, provides engineering, procurement, construction, commissioning, operations management, maintenance, project development, technical, and consulting services to the power generation and renewable energy markets. The company operates through Power Industry Services, Industrial Fabrication and Field Services, and Telecommunications Infrastructure Services segments. The Power Industry Services segment offers engineering, procurement, and construction contracting services to the owners of alternative energy facilities, such as biomass plants, wind farms, and solar fields; and design, construction, project management, start-up, and operation services for projects with approximately 15 gigawatts of power-generating capacity.

Historical Volatility

HV Percentile
72ndHV Percentile
High

Historical movement is elevated versus the past year. The stock has been unusually active.

Historical Volatility (30d)78.36%

HV Percentile72nd

Implied Volatility (30d)91.03%

IV Rank92.06%

IV Minus HV+12.67%

As of Nov 5, 2026

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of Nov 5, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of Nov 5, 2026

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