Accuray Inc (ARAY) Historical Volatility

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

Accuray Incorporated designs, develops, manufactures, and sells radiosurgery and radiation therapy systems for the treatment of tumors in the United States, Canada, Latin America, Australia, New Zealand, Europe, the Middle East, India, Africa, Japan, China, and rest of the Asia Pacific region. It offers the CyberKnife System, a robotic stereotactic radiosurgery and stereotactic body radiation therapy system used for the treatment of primary and metastatic tumors outside the brain, including tumors on or near the spine and in the breast, kidney, liver, lung, pancreas, and prostate. The company also provides the TomoTherapy System, including the Radixact System, which allows for integrated radiation treatment planning, delivery, and data management, enabling clinicians to deliver ultra-precise treatments to approximately 50 patients per day; iDMS data management system, a fully integrated treatment planning and data management systems; and Accuray precision treatment planning system, a treatment planning and data management systems.

In addition, it offers post-contract customer support, installation, training, and other professional services. The company primarily markets its products directly to customers, including hospitals and stand-alone treatment facilities through its sales organization, as well as to customers through sales agents and group purchasing organizations in the United States; and to customers directly and through distributors and sales agents internationally. Accuray Incorporated was incorporated in 1990 and is headquartered in Madison, Wisconsin.

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