ClearSign Technologies Corp (CLIR) stock
Close on Nov 12, 2026Market cap $15.38MP/E –Yield –
ClearSign Technologies Corp grew revenue 82.7% to $5.45M over the twelve months to Jun 30, 2026. Free cash flow was -$4.74M. At the latest close the market valued the company at $15.38M.
Key statistics
Valuation at the latest close; fundamentals over the trailing twelve months, balances at Jun 30, 2026
Valuation
- Market cap
- $15.38M
- P/E ratio
- –
- Price to sales
- 2.82
- Price to book
- –
- Dividend yield
- –
- Free cash flow yield
- –
Fundamentals
- Revenue
- $5.45M
- Net income
- -$5.24M
- EPS, diluted
- -$0.93
- Free cash flow
- -$4.74M
- Diluted shares
- 6M
Trading
- Next earnings
- Nov 20, 2026 (estimated, after the close)
- Previous close
- $2.38
- Open
- $2.36
- Day's range
- $2.26 – $2.39
- Volume
- 7,398
- Average volume (20 days)
- 15,899
- Beta (5 years)
- 1.66
- 52-week range
- $2.12 – $9.80
- RSI (14 days)
- 37.7
- Volatility (1 year)
- 94.5%
- Relative volume
- 0.71×
- WACC
- 13.2%
Market cap history
Month-end market cap since 2012, using shares outstanding reported at the time
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 12, 2026. The S&P 500 is measured by the SPY fund.
| Period | CLIR | S&P 500 | Difference | CLIR per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -23.6% | -2.7% | −21.0 pts | ||
| 3 months | -45.3% | -1.7% | −43.6 pts | ||
| Year to date | -59.4% | +11.9% | −71.3 pts | ||
| 1 year | -72.8% | +12.0% | −84.8 pts | ||
| 3 years | -73.7% | +78.2% | −151.9 pts | -35.9% | +21.2% |
| 5 years | -87.7% | +73.2% | −160.9 pts | -34.2% | +11.6% |
| 10 years | -94.6% | +309.6% | −404.3 pts | -25.3% | +15.1% |
Fifteen years at a glance
Fiscal years 2011 to 2025 and trailing twelve months, USD
Revenue
Gross profit
Operating income
Net income
EPS, diluted
Free cash flow
Press releases
Releases ClearSign Technologies filed with the SEC as exhibits to Form 8-K or 6-K
- Results
- Results
- Update
- Update
- News
- News
About ClearSign Technologies
Industrial Instruments For Measurement, Display, and Control
ClearSign Combustion Corporation designs and develops industrial technologies focused on decarbonization, operational efficiency, and emissions reduction for combustion systems. Its primary proprietary product is ClearSign Core, a burner technology utilizing ceramic structures or metal flame holders to minimize flame length and decrease nitrogen oxide emissions without external flue gas recirculation or catalytic reduction. The company provides process burners, boiler burners, and flaring systems, while also engineering the ClearSign Eye non-contact flame sensing device for industrial pilot ignition. Its solutions target customers across energy sectors, including upstream crude oil production, midstream natural gas processing, petroleum refining, and petrochemical facilities, as well as institutional, commercial, and industrial boiler operators.
Company profile, executives and historyClearSign Technologies stock: common questions
What is ClearSign Technologies's stock price?
CLIR closed at $2.26 on Nov 12, 2026, down 5.04% on the day. Over the past 52 weeks it traded between $2.12 and $9.80.
What is ClearSign Technologies's market cap?
ClearSign Technologies was worth $15.38M at the close on Nov 12, 2026: the share price times the diluted shares outstanding.
What is CLIR's P/E ratio?
ClearSign Technologies lost money over the twelve months to Jun 30, 2026 (diluted EPS -$0.93), so it has no meaningful P/E ratio.
How much revenue does ClearSign Technologies make?
ClearSign Technologies reported revenue of $5.45M for the twelve months to Jun 30, 2026, up 82.7% from a year earlier.
Does ClearSign Technologies pay a dividend?
No. ClearSign Technologies has not paid a cash dividend over the last twelve months.
When does ClearSign Technologies report earnings next?
ClearSign Technologies is expected to report Q3 FY2026 results on Nov 20, 2026, after the close. The date is estimated from its past reporting pattern until the company confirms it.
How has CLIR stock performed over the past year?
Including dividends, CLIR returned -72.8% over the past year, against +12.0% for the S&P 500.
How many CLIR shares are sold short?
0M shares were sold short at the latest FINRA report, 0.41% of the float, or 1.0 days of average trading volume.
Who are ClearSign Technologies's competitors?
Companies most similar to ClearSign Technologies by business, industry and size include FCUV, MSAI, INIS, SCND, LCTC.
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