FUEL TECH, INC. Operating Income Loss

• FUEL TECH, INC. showed an increase of +21.7% in Operating Income Loss from 2024 to 2025.
• This data is from FUEL TECH, INC.'s annual report (Form 10-K), filed with the SEC on March 3, 2026.
• XBRL data for this metric is available from 2009 to 2025 (17 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Over the full 17 years of available data (2009 to 2025), FUEL TECH, INC.'s Operating Income Loss has declined by 19.5%.
• Historical annual values: Fiscal year 2025: -$3.68 million | Fiscal year 2024: -$4.70 million | Fiscal year 2023: -$2.66 million | Fiscal year 2022: -$1.53 million | Fiscal year 2021: -$1.49 million | Fiscal year 2020: -$4.34 million | Fiscal year 2019: -$8.24 million | Fiscal year 2018: $110.0 thousand | Fiscal year 2017: -$7.07 million | Fiscal year 2016: -$12.02 million | Fiscal year 2015: -$5.43 million | Fiscal year 2014: -$25.16 million | Fiscal year 2013: $8.00 million | Fiscal year 2012: $5.20 million | Fiscal year 2011: $9.65 million | Fiscal year 2010: $3.94 million | Fiscal year 2009: -$3.08 million.
• Data sourced from SEC EDGAR public filings as of June 21, 2026.

Last verified: June 21, 2026