Regeneron Pharmaceuticals Inc

REGNNASDAQ · USD
788.04USD0.00 (-1.01%)
8910

Regeneron Pharmaceuticals Inc (REGN) Historical Volatility

REGN 30-day historical volatility is 26%. This ranks in the 12th percentile of readings over the past year.

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

Regeneron Pharmaceuticals, Inc. discovers, invents, develops, manufactures, and commercializes medicines for treating various diseases worldwide. The company's products include EYLEA injection to treat wet age-related macular degeneration and diabetic macular edema; myopic choroidal neovascularization; and diabetic retinopathy, as well as macular edema following retinal vein occlusion, including macular edema following central retinal vein occlusion and macular edema following branch retinal vein occlusion. It also provides Dupixent injection to treat atopic dermatitis and asthma in adults and pediatrics; Libtayo injection to treat metastatic or locally advanced cutaneous squamous cell carcinoma;Praluent injection for heterozygous familial hypercholesterolemia or clinical atherosclerotic cardiovascular disease in adults; REGEN-COV for covid-19; and Kevzara solution for treating rheumatoid arthritis in adults.

In addition, the company offers Inmazeb injection for infection caused by Zaire ebolavirus; ARCALYST injection for cryopyrin-associated periodic syndromes, including familial cold auto-inflammatory syndrome and muckle-wells syndrome; and ZALTRAP injection for intravenous infusion to treat metastatic colorectal cancer; and develops product candidates for treating patients with eye, allergic and inflammatory, cardiovascular and metabolic, infectious, and rare diseases; and cancer, pain, and hematologic conditions. It has collaboration and license agreements with Sanofi; Bayer; Teva Pharmaceutical Industries Ltd.; Mitsubishi Tanabe Pharma Corporation; Alnylam Pharmaceuticals, Inc.; Roche Pharmaceuticals; and Kiniksa Pharmaceuticals, Ltd., as well as has an agreement with the U.S. Department of Health and Human Services, as well as with Zai Lab Limited; Intellia Therapeutics, Inc.; Biomedical Advanced Research Development Authority; and AstraZeneca PLC. The company was incorporated in 1988 and is headquartered in Tarrytown, New York.

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

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

As of September 25, 2026

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

As of September 25, 2026

See how volatility has moved over time

Track REGN historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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