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.
• Quarterly values from 10-Q filings: Q2 2010: -$348.0 thousand | Q3 2010: $1.48 million | Q1 2011: $945.0 thousand | Q2 2011: $945.0 thousand | Q3 2011: $2.91 million | Q1 2012: $2.49 million | Q2 2012: $188.0 thousand | Q3 2012: $1.60 million | Q1 2013: $41.0 thousand | Q2 2013: $2.13 million | Q3 2013: $5.34 million | Q1 2014: -$1.14 million | Q2 2014: -$671.0 thousand | Q3 2014: $1.44 million | Q1 2015: -$2.41 million | Q2 2015: -$2.25 million | Q3 2015: -$795.0 thousand | Q1 2016: -$2.59 million | Q2 2016: -$1.48 million | Q3 2016: -$2.25 million | Q1 2017: -$1.78 million | Q2 2017: -$5.60 million | Q3 2017: -$134.0 thousand | Q1 2018: -$184.0 thousand | Q2 2018: -$1.62 million | Q3 2018: $1.05 million | Q1 2019: -$1.31 million | Q2 2019: -$843.0 thousand | Q3 2019: -$1.36 million | Q1 2020: -$2.68 million | Q2 2020: -$2.42 million | Q3 2020: $2.44 million | Q1 2021: -$1.16 million | Q2 2021: -$689.0 thousand | Q3 2021: $578.0 thousand | Q1 2022: -$984.0 thousand | Q2 2022: -$485.0 thousand | Q3 2022: $192.0 thousand | Q1 2023: -$658.0 thousand | Q2 2023: -$1.33 million | Q3 2023: $133.0 thousand | Q1 2024: -$1.69 million | Q2 2024: -$715.0 thousand | Q3 2024: -$179.0 thousand | Q1 2025: -$952.0 thousand | Q2 2025: -$1.31 million | Q3 2025: $4.0 thousand.
• 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 August 6, 2026.

Last verified: August 6, 2026