Alnylam Pharmaceuticals Inc

ALNYNASDAQ · USD
254.07USD0.00 (-0.51%)
642

Alnylam Pharmaceuticals Inc (ALNY) Historical Volatility

ALNY 30-day historical volatility is 46%. This ranks in the 83th percentile of readings over the past year.

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

Alnylam Pharmaceuticals, Inc., a biopharmaceutical company, focuses on discovering, developing, and commercializing novel therapeutics based on ribonucleic acid interference. The company's pipeline of investigational RNAi therapeutics focuses on genetic medicines, cardio-metabolic diseases, hepatic infectious diseases, and central nervous system (CNS)/ocular diseases. Its marketed products include ONPATTRO (patisiran), a lipid complex injection for the treatment of the polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults; GIVLAARI for the treatment of adults with acute hepatic porphyria (AHP); and OXLUMO (lumasiran) for the treatment of primary hyperoxaluria type 1 (PH1).

In addition, the company is developing givosiran for the treatment of adolescent patients with AHP; patisiran for the treatment of transthyretin amyloidosis, or ATTR amyloidosis, with cardiomyopathy; cemdisiran to treat complement-mediated diseases; ALN-AAT02 for the treatment of AAT deficiency-associated liver disease; ALN-HBV02 to treat chronic HBV infection; Zilebesiran to treat hypertension; and ALN-HSD to treat NASH. Further, it offers Fitusiran for the treatment of hemophilia and rare bleeding disorders, Inclisiran to treat hypercholesterolemia, lumasiran for the treatment of advanced PH1 and recurrent renal stones, and vutrisiran for the treatment of ATTR amyloidosis, which is in phase 3 clinical trial. Alnylam Pharmaceuticals, Inc. has strategic collaborations with Regeneron Pharmaceuticals, Inc. to discover, develop, and commercialize RNAi therapeutics for a range of diseases by addressing therapeutic targets expressed in the eye and CNS; and Sanofi Genzyme to discover, develop, and commercialize RNAi therapeutics. It also has license and collaboration agreements with Novartis AG; Vir Biotechnology, Inc.; Dicerna Pharmaceuticals, Inc.; Ionis Pharmaceuticals, Inc.; and PeptiDream, Inc. The company was founded in 2002 and is headquartered in Cambridge, Massachusetts.

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 Alnylam Pharmaceuticals Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where ALNY HV is running hot, cold, or in line. Make the ALNY 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 29, 2026

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

As of September 29, 2026

See how volatility has moved over time

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

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