Fuelcell Energy Inc (FCEL) Historical Volatility

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

FuelCell Energy, Inc., together with its subsidiaries, designs, manufactures, sells, installs, operates, and services stationary fuel cell power plants for distributed baseload power generation. It offers SureSource1500, a 1.4-megawatt (MW) platform; SureSource 3000, a 2.8 MW platform; SureSource 4000, a 3.7 MW platform; SureSource 250, a 250- kilowatt (kW) platform; SureSource 400, a 400-kW platform; and SureSource Hydrogen, a 2.3 MW platform that is designed to produce up to 1,200 kilograms of hydrogen per day for multi-megawatt utility, microgrid, and distributed hydrogen applications, as well as on-site heat and chilling applications.

It also provides SureSource Capture system that separates and concentrates carbon dioxide from the flue gases of natural gas, biomass, or coal-fired power plants, as well as industrial facilities; solid oxide fuel cell/solid oxide electrolysis cell stack technology. The company's SureSource power plants generate clean electricity, usable heat, water, and hydrogen. In addition, it provides engineering, procurement, and construction services; project financing services; and real-time monitoring and remote operation, online support system, preventative maintenance, parts and supplies, on-site and classroom training, and power plant refurbishment/recycling services, as well as technical services in the areas of plant operation and performance, and fuel processing. It serves various markets, including utilities and independent power producers, industrial and process applications, education and health care, data centers and communication, wastewater treatment, government, microgrids, food and beverage, and commercial and hospitality. The company primarily operates in the United States, South Korea, England, Germany, and Switzerland. FuelCell Energy, Inc. was founded in 1969 and is headquartered in Danbury, Connecticut.

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 Fuelcell Energy Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where FCEL HV is running hot, cold, or in line. Make the FCEL 30 day historical volatility — and every other window — work for your edge instead of against it.