Timken Co
Timken Co (TKR) Historical Volatility
TKR 30-day historical volatility is 27%. This ranks in the 8th percentile of readings over the past year.
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Tracking TKR historical volatility helps you see how much Timken Co'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, Timken Co's HV tells you what really happened. Use our scanner to monitor TKR 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 TKR 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Timken Co'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.
The Timken Company designs, manufactures, and manages engineered bearings and power transmission products worldwide. It operates in two segments, Mobile Industries and Process Industries. The Mobile Industries segment offers a portfolio of bearings, seals, and lubrication devices and systems, as well as power transmission components, engineered chains, augers, belts, couplings, clutches, brakes, and related products and maintenance services to original equipment manufacturers (OEMs) and end-users of off-highway equipment for the agricultural, construction, mining, outdoor power equipment, and power sports markets; and on-highway vehicles, including passenger cars, light trucks, and medium- and heavy-duty trucks, as well as rail cars and locomotives.
It also provides power transmission systems and flight-critical components for civil and military aircraft, which include bearings, rotor-head assemblies, helicopter transmission systems, turbine engine components, gears, and housings. This segment sells its parts through a network of authorized automotive and heavy-truck distributors to individual end-users, equipment owners, operators, and maintenance shops. The Process Industries segment provides industrial bearings and assemblies; power transmission components, such as gears and gearboxes; and linear motion products, couplings, seals, lubricants, chains, belts, and related products and services to OEMs and end-users in various industries. It also offers aftermarket sales and service needs through a network of authorized industrial distributors; and repair and service for bearings and gearboxes, as well as electric motor rewind, repair, and services to end-users. The company offers its products under the Timken, Philadelphia Gear, Drives, Cone Drive, Rollon, Lovejoy, Diamond, BEKA, and Groeneveld brands. The Timken Company was founded in 1899 and is headquartered in North Canton, Ohio.
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 Timken Co's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where TKR HV is running hot, cold, or in line. Make the TKR 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 TKR historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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