Resmed Inc
Resmed Inc (RMD) Historical Volatility
RMD 30-day historical volatility is 25%. This ranks in the 49th percentile of readings over the past year.
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Tracking RMD historical volatility helps you see how much Resmed 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, Resmed Inc's HV tells you what really happened. Use our scanner to monitor RMD 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 RMD 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Resmed 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.
ResMed Inc. develops, manufactures, distributes, and markets medical devices and cloud-based software applications for the healthcare markets. The company operates in two segments, Sleep and Respiratory Care, and Software as a Service. It offers various products and solutions for a range of respiratory disorders, including technologies to be applied in medical and consumer products, ventilation devices, diagnostic products, mask systems for use in the hospital and home, headgear and other accessories, dental devices, and cloud-based software informatics solutions to manage patient outcomes, as well as provides customer and business processes.
The company also provides AirView, a cloud-based system that enables remote monitoring and changing of patients' device settings; myAir, a personalized therapy management application for patients with sleep apnea that provides support, education, and troubleshooting tools for increased patient engagement and improved compliance; U-Sleep, a compliance monitoring solution that enables home medical equipment (HME)to streamline their sleep programs; connectivity module and propeller solutions; and Propeller portal. It offers out-of-hospital software solution, such as Brightree business management software and service solutions to providers of HME, pharmacy, home infusion, orthotics, and prosthetics services; MatrixCare care management and related ancillary solutions to senior living, skilled nursing, life plan communities, home health, home care, and hospice organizations, as well as related accountable care organizations; and HEALTHCAREfirst that offers electronic health record, software, billing and coding services, and analytics for home health and hospice agencies. The company markets its products primarily to sleep clinics, home healthcare dealers, and hospitals through a network of distributors and direct sales force in approximately 140 countries. ResMed Inc. was founded in 1989 and is headquartered in San Diego, California.
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 Resmed Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where RMD HV is running hot, cold, or in line. Make the RMD 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 28, 2026
As of September 28, 2026
See how volatility has moved over time
Track RMD historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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