Power Solutions International Inc
Power Solutions International Inc (PSIX) Historical Volatility
PSIX 30-day historical volatility is 68%. This ranks in the 15th percentile of readings over the past year.
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Tracking PSIX historical volatility helps you see how much Power Solutions International 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, Power Solutions International Inc's HV tells you what really happened. Use our scanner to monitor PSIX 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 PSIX 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Power Solutions International 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.
Power Solutions International, Inc. designs, engineers, manufactures, markets, and sells engines and power systems in the United States, North America, the Pacific Rim, Europe, and internationally. The company offers alternative-fueled power systems for original equipment manufacturers of off-highway industrial equipment and on-road vehicles; and large custom-engineered integrated electrical power generation systems. It also provides basic engine blocks integrated with fuel system parts, as well as complete packaged power systems, including combined front accessory drives, cooling systems, electronic systems, air intake systems, fuel systems, housings, power takeoff systems, exhaust systems, hydraulic systems, enclosures, brackets, hoses, tubes, packaging, telematics, and other assembled components.
In addition, the company offers compression and spark-ignited internal combustion engines that run on various fuels, such as natural gas, propane, gasoline, diesel, and biofuels in the energy, industrial, and transportation markets. Further, it provides standby and prime power generation, demand response, microgrid, renewable energy resiliency, arbor equipment, and combined heat and power; forklifts, wood chippers, stump grinders, sweepers/industrial scrubbers, aerial lift platforms/scissor lifts, irrigation pumps, oil and gas compression, oil lifts, off road utility vehicles, ground support equipment, ice resurfacing equipment, and pump jacks; and light and medium duty vocational trucks and vans, school and transit buses, and terminal and utility tractors. The company has a strategic collaboration agreement with Weichai Power Co., Ltd. Power Solutions International, Inc. was founded in 1985 and is headquartered in Wood Dale, Illinois.
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 Power Solutions International Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where PSIX HV is running hot, cold, or in line. Make the PSIX 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 22, 2026
As of September 22, 2026
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Track PSIX historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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