ClearSign Technologies (CLIR) makes combustion-control hardware, including its Duplex burner technology and related sensing and control systems that reduce NOx emissions and improve fuel efficiency in industrial heaters and boilers. Its edge rests on proprietary patents for low-emission burner control, but the company is a very small, pre-scale operator with a 15 million dollar market cap and an operating margin of minus 267.5%, so the moat has yet to show up in the financials. Revenue grew 321.1% on a small base, which suggests early commercial traction, while the gross margin of 18.5% indicates that unit economics on that revenue are still thin. The near-term story depends on converting pilot and early-adopter installations into repeatable orders from industrial customers facing tighter emissions rules. Return on equity of minus 51.7% and a forward P/E of 73 leave little room for error, and the score of 33/100 reflects that the fundamentals are not yet supporting the thesis. Worth a deeper look only if the team wants exposure to an early-stage emissions-technology option and is comfortable with the balance-sheet and dilution risk that comes with it.
Plain-English pros, cons, and what to watch. Pro feature.
See what each model says, the assumptions behind it, the bad, normal and good cases, and why the fair value changed.
The full quality picture: a reason under every score, how the scores moved, and the conviction breakdown.
The full analyst picture: the price-target distribution against the current price, forward consensus estimates, and how ACCE's own models compare.
Trades are only made public after a delay. We show the delay so you know how old the news is.
Follow the informed money: 13F position changes, insider and Congress trades, and 13D activist filings.
| Date | Type | New | Previous | Price |
|---|---|---|---|---|
| 15 Oct 2026, 00:00 CEST | ACCE price target | $2.12 | first publication | $2.88 |
Answered from ClearSign Technologies Corporation Common Stock (DE) fundamentals + recent valuations. Every number shows its source and date.
| Company | Price | Fair value | vs fair value | P/E | ROE | Quality | Score |
|---|---|---|---|---|---|---|---|
| CLIR ClearSign Technologies Corporation Common Stock (DE) | $2.31 | - | - | - | -51.7% | 35 | 33 |
| TOMZ TOMI Environmental Solutions Inc. Common Stock | $1.44 | - | - | - | -168.8% | 25 | 36 |
| ALTUV.PA BIO-UV Group S.A. | €0.89 | - | - | 88.0x | 0.5% | 51 | 36 |
| ALWTR.PA Watera | €0.98 | - | - | 9.3x | -68.7% | 47 | 52 |
| LIQT LiqTech International Inc. Common Stock | $0.35 | - | - | - | -49.6% | 17 | 22 |
| CLWT Euro Tech Holdings Company Limited Common Stock | $1.32 | - | - | 66.0x | 1.0% | 42 | 42 |
| BAWAT.ST Bawat Water Technologies AB | kr 1.07 | - | - | - | -5811.5% | 25 | 42 |
Where CLIR ranks against its sector peers on each metric.