ClearSign Technologies (CLIR) Free Cash Flow (2011 - 2026)
ClearSign Technologies posted quarterly Free Cash Flow of -$1.3 million for Q1 2026, down 20.9% year-on-year from -$1.7 million in Q1 2025, and down 5.07% on a QoQ basis from -$1.3 million in Q4 2025.
ClearSign Technologies (CLIR) has 16 years of Free Cash Flow data on file, last reported at -$1.3 million in Q1 2026.
- For the quarter ending Q1 2026, Free Cash Flow fell 20.9% year-over-year to -$1.3 million; the trailing twelve-month figure through Mar 2026 stood at -$5.0 million (down 10.31% YoY), and the FY2025 full-year result was -$4.7 million, down 7.43% from the prior year.
- Free Cash Flow for Q1 2026 stood at -$1.3 million, down from -$1.3 million in the prior quarter.
- Across five years, Free Cash Flow topped out at $46000.0 in Q2 2023 and bottomed at -$1.8 million in Q2 2022.
- The 5-year median for Free Cash Flow is -$1.3 million (2023), against an average of -$1.1 million.
- The widest annual swing landed in 2023, when Free Cash Flow soared 102.49%; it then tumbled 3413.04% in 2024.
- A 5-year view of Free Cash Flow shows it stood at -$733000.0 in 2022, then slumped by 97.82% to -$1.4 million in 2023, then jumped by 69.93% to -$436000.0 in 2024, then sank by 194.27% to -$1.3 million in 2025, then dropped by 5.07% to -$1.3 million in 2026.
- The last three Free Cash Flow figures came in at -$1.3 million (Q1 2026), -$1.3 million (Q4 2025), and -$1.8 million (Q3 2025), per Business Quant data.
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Free Cash Flow (Qtr) |
|---|---|---|---|---|---|
| 1 | Veralto | 20.72 Bn | 19.29 Bn | 854.00 Mn | 170.00 Mn |
| 2 | Zurn Elkay Water Solutions | 7.83 Bn | 7.56 Bn | 205.80 Mn | 42.70 Mn |
| 3 | Federal Signal | 6.47 Bn | 6.40 Bn | 179.40 Mn | 94.60 Mn |
| 4 | Ceco Environmental | 2.82 Bn | 2.78 Bn | 63.92 Mn | -15.69 Mn |
| 5 | PureCycle Technologies | 2.21 Bn | 2.11 Bn | - | -46.09 Mn |
| 6 | Euro Tech Holdings | 1.36 Bn | 1.34 Bn | - | - |
| 7 | Energy Recovery | 421.81 Mn | 335.66 Mn | 2.70 Mn | 20.22 Mn |
| 8 | CleanCore Solutions | 173.22 Mn | 156.17 Mn | -419,259.00 | -137.87 Mn |
| 9 | Arq | 116.43 Mn | 111.76 Mn | 9.94 Mn | -676,000.00 |
| 10 | ClearSign Technologies | 25.88 Mn | 18.15 Mn | -393,000.00 | -1.35 Mn |
Historic Data
Download Data| Date | Value |
|---|---|
| Mar 31, 2026 | -1.35 Mn |
| Mar 31, 2026 | -1.35 Mn |
| Dec 31, 2025 | -1.28 Mn |
| Dec 31, 2025 | -1.28 Mn |
| Sep 30, 2025 | -1.83 Mn |
| Sep 30, 2025 | -1.83 Mn |
| Jun 30, 2025 | -511,000.00 |
| Jun 30, 2025 | -511,000.00 |
| Mar 31, 2025 | -1.12 Mn |
| Mar 31, 2025 | -1.12 Mn |
| Dec 31, 2024 | -436,000.00 |
| Dec 31, 2024 | -436,000.00 |
| Sep 30, 2024 | -1.43 Mn |
| Sep 30, 2024 | -1.43 Mn |
| Jun 30, 2024 | -1.52 Mn |
| Jun 30, 2024 | -1.52 Mn |
| Mar 31, 2024 | -1.00 Mn |
| Mar 31, 2024 | -1.00 Mn |
| Dec 31, 2023 | -1.45 Mn |
| Dec 31, 2023 | -1.45 Mn |
| Sep 30, 2023 | -1.28 Mn |
| Sep 30, 2023 | -1.28 Mn |
| Jun 30, 2023 | 46,000.00 |
| Jun 30, 2023 | 46,000.00 |
| Mar 31, 2023 | -554,000.00 |
| Mar 31, 2023 | -554,000.00 |
| Dec 31, 2022 | -733,000.00 |
| Dec 31, 2022 | -733,000.00 |
| Sep 30, 2022 | -917,000.00 |
| Sep 30, 2022 | -917,000.00 |
| Jun 30, 2022 | -1.84 Mn |
| Jun 30, 2022 | -1.84 Mn |
| Mar 31, 2022 | -1.51 Mn |
| Mar 31, 2022 | -1.51 Mn |
| Dec 31, 2021 | -1.17 Mn |
| Dec 31, 2021 | -1.17 Mn |
| Sep 30, 2021 | -1.91 Mn |
| Sep 30, 2021 | -1.91 Mn |
| Jun 30, 2021 | -2.13 Mn |
| Jun 30, 2021 | -2.13 Mn |
| Mar 31, 2021 | -1.57 Mn |
| Mar 31, 2021 | -1.57 Mn |
| Dec 31, 2020 | -1.83 Mn |
| Dec 31, 2020 | -1.83 Mn |
| Sep 30, 2020 | -1.11 Mn |
| Sep 30, 2020 | -1.11 Mn |
| Jun 30, 2020 | -1.65 Mn |
| Jun 30, 2020 | -1.65 Mn |
| Mar 31, 2020 | -1.39 Mn |
| Mar 31, 2020 | -1.39 Mn |
| Dec 31, 2019 | -1.45 Mn |
| Dec 31, 2019 | -1.45 Mn |
| Sep 30, 2019 | -1.49 Mn |
| Sep 30, 2019 | -1.49 Mn |
| Jun 30, 2019 | -1.95 Mn |
| Jun 30, 2019 | -1.95 Mn |
| Mar 31, 2019 | -2.03 Mn |
| Mar 31, 2019 | -2.03 Mn |
| Dec 31, 2018 | -2.11 Mn |
| Dec 31, 2018 | -2.11 Mn |
| Sep 30, 2018 | -1.77 Mn |
| Sep 30, 2018 | -1.77 Mn |
| Jun 30, 2018 | -2.74 Mn |
| Jun 30, 2018 | -2.74 Mn |
| Mar 31, 2018 | -1.86 Mn |
| Mar 31, 2018 | -1.86 Mn |
| Dec 31, 2017 | -2.19 Mn |
| Dec 31, 2017 | -2.19 Mn |
| Sep 30, 2017 | -1.88 Mn |
| Sep 30, 2017 | -1.88 Mn |
| Jun 30, 2017 | -1.99 Mn |
| Jun 30, 2017 | -1.99 Mn |
| Mar 31, 2017 | -2.30 Mn |
| Mar 31, 2017 | -2.30 Mn |
| Dec 31, 2016 | -2.22 Mn |
| Dec 31, 2016 | -2.22 Mn |
| Sep 30, 2016 | -1.63 Mn |
| Sep 30, 2016 | -1.63 Mn |
| Jun 30, 2016 | -2.23 Mn |
| Jun 30, 2016 | -2.23 Mn |
| Mar 31, 2016 | -2.73 Mn |
| Mar 31, 2016 | -2.73 Mn |
| Dec 31, 2015 | -1.47 Mn |
| Dec 31, 2015 | -1.47 Mn |
| Sep 30, 2015 | -1.65 Mn |
| Sep 30, 2015 | -1.65 Mn |
| Jun 30, 2015 | -1.34 Mn |
| Jun 30, 2015 | -1.34 Mn |
| Mar 31, 2015 | -1.85 Mn |
| Mar 31, 2015 | -1.85 Mn |
| Dec 31, 2014 | -1.18 Mn |
| Dec 31, 2014 | -1.18 Mn |
| Sep 30, 2014 | -1.20 Mn |
| Sep 30, 2014 | -1.20 Mn |
| Jun 30, 2014 | -1.52 Mn |
| Jun 30, 2014 | -1.52 Mn |
| Mar 31, 2014 | -1.65 Mn |
| Mar 31, 2014 | -1.65 Mn |
| Dec 31, 2013 | -1.06 Mn |
| Dec 31, 2013 | -1.06 Mn |
| Sep 30, 2013 | -958,000.00 |
| Sep 30, 2013 | -958,000.00 |
| Jun 30, 2013 | -1.31 Mn |
| Jun 30, 2013 | -1.31 Mn |
| Mar 31, 2013 | -1.21 Mn |
| Mar 31, 2013 | -1.21 Mn |
| Dec 31, 2012 | -1.33 Mn |
| Dec 31, 2012 | -1.33 Mn |
| Sep 30, 2012 | -945,000.00 |
| Sep 30, 2012 | -945,000.00 |
| Jun 30, 2012 | -608,000.00 |
| Jun 30, 2012 | -608,000.00 |
| Mar 31, 2012 | -647,000.00 |
| Mar 31, 2012 | -647,000.00 |
| Dec 31, 2011 | -730,163.00 |
| Dec 31, 2011 | -730,163.00 |
| Sep 30, 2011 | -648,387.00 |
| Sep 30, 2011 | -648,387.00 |
| Jun 30, 2011 | -344,043.00 |
| Jun 30, 2011 | -344,043.00 |
| Mar 31, 2011 | -96,407.00 |
| Mar 31, 2011 | -96,407.00 |