Tennant Co
Tennant Co (TNC) Historical Volatility
TNC 30-day historical volatility is 51%. This ranks in the 79th percentile of readings over the past year.
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Tracking TNC historical volatility helps you see how much Tennant 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, Tennant Co's HV tells you what really happened. Use our scanner to monitor TNC 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 TNC 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Tennant 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.
Tennant Company, together with its subsidiaries, designs, manufactures, and markets floor cleaning equipment in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. The company offers a suite of products, including floor maintenance and cleaning equipment, detergent-free and other sustainable cleaning technologies, aftermarket parts and consumables, equipment maintenance and repair services, specialty surface coatings, and asset management solutions. It also provides business solutions, such as financing, rental, and leasing programs, as well as machine-to-machine asset management solutions.
The company offers its products under the Tennant, Nobles, Alfa Uma Empresa Tennant, IRIS, VLX, IPC, Gaomei, and Rongen brands, as well as private-label brands. Its products are used in retail establishments and distribution centers; factories and warehouses; and public venues, such as arenas and stadiums, office buildings, schools and universities, hospitals and clinics, parking lots and streets, and other environments. It markets its products to contract cleaners and businesses through direct sales and service organizations, as well as through a network of authorized distributors. Tennant Company was founded in 1870 and is headquartered in Eden Prairie, Minnesota.
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 Tennant Co's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where TNC HV is running hot, cold, or in line. Make the TNC 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 16, 2026
As of September 16, 2026
See how volatility has moved over time
Track TNC historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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