Alcon Inc

ALCNYSE · USD
65.26USD0.00 (+1.23%)
695

Alcon Inc (ALC) Historical Volatility

ALC 30-day historical volatility is 20%. This ranks in the 3th percentile of readings over the past year.

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

Alcon Inc., an eye care company, researches, develops, manufactures, distributes, and sells eye care products for eye care professionals and their patients worldwide. The company's Surgical segment offers equipment, instrumentation and diagnostics, intraocular lenses (IOLs), and other implantables; and consumables, including viscoelastics, surgical solutions, incisional instruments, surgical custom packs, and other products for use in surgical procedures. Its cataract products include centurion vision system, LenSx femtosecond laser, LuxOR surgical ophthalmic microscope, NGENUITY 3D visualization system, and ORA system for intra-operative measurements; custom pak surgical procedure packs; vitreoretinal products comprising constellation vision systems, procedure packs, lasers and hand-held microsurgical instruments, and grieshaber and MIVS instruments, as well as scissors, forceps and micro-instruments, medical grade vitreous tamponades, and Hypervit vitrectomy probes; refractive surgery products, including WaveLight lasers and Contoura Vision used for LASIK treatment; EX-PRESS glaucoma filtration device; and implantables products, including AcrySof IQ IOLs products include monofocal IOLs and advanced technology IOLs under the PanOptix and ReSTOR brands for the correction of presbyopia and astigmatism at the time of cataract surgery.

Its Vision Care segment provides daily disposable, reusable, and color-enhancing contact lenses; ocular health products, such as dry eye, glaucoma, contact lens care, and ocular allergies; and ocular vitamins and redness relievers under the TOTAL, PRECISION, DAILIES AquaComfort PLUS, Air Optix, Opti-Free, Clear Care, Tears Naturale, Genteal, ICAPS, and Vitalux brands. The company was formerly known as Alcon Universal S.A. and changed the name to Alcon Inc. in December 2001. Alcon Inc. was founded in 1945 and is headquartered in Geneva, Switzerland.

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 Alcon Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where ALC HV is running hot, cold, or in line. Make the ALC 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 28, 2026

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

As of September 28, 2026

See how volatility has moved over time

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

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