Fuel Tech Inc (FTEK) Historical Volatility

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

Fuel Tech, Inc. provides boiler optimization, efficiency improvement, and air pollution reduction and control solutions to utility and industrial customers worldwide. It operates through two segments, Air Pollution Control Technology and FUEL CHEM Technology. The Air Pollution Control Technology segment offers technologies to reduce nitrogen oxide (NOx) emissions in flue gas from boilers, incinerators, furnaces, and other stationary combustion sources by low and ultra-low NOx burners; over-fire air systems; NOxOUT and HERT selective non-catalytic reduction systems; selective catalytic reduction systems comprising ammonia injection grid, and graduated straightening grid systems; I-NOx systems; ESP Processes and Services; ULTRA technology; and flue gas conditioning systems; and burner systems.

The FUEL CHEM Technology segment provides programs to improve the efficiency, reliability, fuel flexibility, boiler heat rate, and environmental status of combustion units by controlling slagging, fouling, corrosion, opacity, and acid plume, as well as the formation of sulfur trioxide, ammonium bisulfate, particulate matter, sulfur dioxide, and carbon dioxide through the addition of chemicals into the furnace using TIFI targeted in-furnace injection technology. This segment offers its FUEL CHEM program for plants operating in the electric utility, industrial, pulp and paper, waste-to-energy, and university and district heating markets; and the owners of boilers, furnaces, and other combustion units. The company was incorporated in 1987 and is headquartered in Warrenville, 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 Fuel Tech Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where FTEK HV is running hot, cold, or in line. Make the FTEK 30 day historical volatility — and every other window — work for your edge instead of against it.