Amtech Systems Inc
Amtech Systems Inc (ASYS) Historical Volatility
ASYS 30-day historical volatility is 64%. This ranks in the 11th percentile of readings over the past year.
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Tracking ASYS historical volatility helps you see how much Amtech Systems 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, Amtech Systems Inc's HV tells you what really happened. Use our scanner to monitor ASYS 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 ASYS 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Amtech Systems 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.
Amtech Systems, Inc. manufactures and sells capital equipment and related consumables for use in fabricating silicon carbide (SiC), silicon power devices, analog and discrete devices, electronic assemblies, and light-emitting diodes (LEDs) worldwide. The company operates in Semiconductor and Material and Substrate segments. The Semiconductor segment designs, manufactures, sells, and services thermal processing equipment, including solder reflow ovens, diffusion furnaces, and customer high-temp belt furnaces for use by semiconductor manufacturers, as well as in electronics, automotive and other industries; and wafer polishing equipment and related services.
Its products include horizontal diffusion furnaces; and belt furnaces. The Material and Substrate segment manufactures and sells consumables and machinery for lapping and polishing of materials, such as silicon wafers for semiconductor products; sapphire substrates for LED lighting and mobile devices; silicon carbide wafers for LED and power device applications; various glass and silica components for 3D image transmission; quartz and ceramic components for telecommunications devices; and medical device components, and optical and photonics applications. This segment also offers substrate process chemicals for use in various manufacturing processes, including semiconductors, silicon and compound semiconductor wafers, and optics. The company sells its products through sales personnel, as well as a network of independent sales representatives and distributors. The company was formerly known as Quartz Engineering & Materials, Inc. and changed its name to Amtech Systems, Inc. in 1987. Amtech Systems, Inc. was incorporated in 1981 and is headquartered in Tempe, Arizona.
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 Amtech Systems Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where ASYS HV is running hot, cold, or in line. Make the ASYS 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 25, 2026
As of September 25, 2026
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Track ASYS historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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