CLIR

Company Overview — What Does ClearSign Technologies Corp Do?

ClearSign Technologies Corporation designs and develops products and technologies to enhance operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States and the People's Republic of China. Its ClearSign Core Burner Technology consists of an industrial burner body and a downstream porous ceramic structure or metal flame stabilizing device; ClearSign Core Plug & Play technology provides direct burner replacement for traditional refinery process heaters; and ClearSign Eye Flame Sensor, an electrical flame sensor for industrial applications. The company also provides ClearSign Core Boiler Burner; and ClearSign Core Flaring Burners technologies. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma. ClearSign Technologies Corp (CLIR) is classified as a micro-cap stock in the Technology sector, specifically within the Measuring And Control Equipment industry. The company is led by CEO Colin J. Deller and employs approximately 10 people, headquartered in SEATTLE, Oklahoma. With a market capitalization of $255M, CLIR is one of the notable companies in the Technology sector.

ClearSign Technologies Corp (CLIR) Stock Rating — Reduce (April 2026)

As of April 2026, ClearSign Technologies Corp receives a Reduce rating with a composite score of 34.5/100 and 2 out of 5 stars from the Blank Capital Research quantitative model.CLIR ranks #2,348 out of 4,446 stocks in our coverage universe. Within the Technology sector, ClearSign Technologies Corp ranks #252 of 584 stocks, placing it in the upper half of its Technology peers. The rating is generated by a multi-factor model that weighs quality (30%), momentum (25%), value (15%), investment (10%), stability (10%), and short interest (10%).

CLIR Stock Price and 52-Week Range

ClearSign Technologies Corp (CLIR) currently trades at $5.91. The stock lost $0.27 (4.4%) in the most recent trading session. Recent trading volume was 32K shares, suggesting relatively thin trading activity.

Is CLIR Overvalued or Undervalued? — Valuation Analysis

ClearSign Technologies Corp (CLIR) carries a value factor score of 31/100 in the Blank Capital model, signaling premium valuation that prices in significant future growth. The price-to-book ratio stands at 3.49x, versus the sector average of 3.16x. The price-to-sales ratio is 9.72x, compared to 1.06x for the average Technology stock.

At current multiples, ClearSign Technologies Corp trades at a premium to most Technology peers. This elevated valuation may be justified if the company can sustain above-average growth rates and profitability, but it also creates downside risk if earnings disappoint expectations.

ClearSign Technologies Corp Profitability — ROE, Margins, and Quality Score

ClearSign Technologies Corp (CLIR) earns a quality factor score of 20/100, signaling below-average profitability metrics relative to the broader market. The return on equity (ROE) is -66.5%, compared to the Technology sector average of -1.4%, which is below typical expectations for high-quality companies. Return on assets (ROA) comes in at -52.0% versus the sector average of -1.0%.

On a margin basis, ClearSign Technologies Corp reports gross margins of 38.9%, compared to 50.9% for the sector. The operating margin is -548.0% (sector: -0.5%). Net profit margin stands at -495.5%, versus -1.5% for the average Technology stock. Revenue growth is running at 2186.7% on a trailing basis, compared to 14.2% for the sector. Profitability is below benchmark levels, which may reflect industry headwinds, elevated reinvestment, or structural challenges.

CLIR Debt, Balance Sheet, and Financial Health

ClearSign Technologies Corp has a debt-to-equity ratio of 28.0%, compared to the Technology sector average of 43.0%. The low leverage indicates a conservative balance sheet with significant financial flexibility. The current ratio is 4.34x, indicating strong short-term liquidity.

CLIR has a beta of 0.17, meaning it is less volatile than the S&P 500, making it a relatively defensive holding. The stability factor score for ClearSign Technologies Corp is 30/100, suggesting elevated price swings that may be unsuitable for conservative portfolios.

ClearSign Technologies Corp Revenue and Earnings History — Quarterly Trend

In TTM 2026, ClearSign Technologies Corp reported revenue of $3M and earnings per share (EPS) of $-0.99. Net income for the quarter was $-6M. Gross margin was 38.9%. Operating income came in at $-7M.

In FY 2025, ClearSign Technologies Corp reported revenue of $5M and earnings per share (EPS) of $-0.99. Net income for the quarter was $-5M. Gross margin was 27.2%. Revenue grew 45.6% year-over-year compared to FY 2024. Operating income came in at $-7M.

In Q3 2025, ClearSign Technologies Corp reported revenue of $1M and earnings per share (EPS) of $-0.26. Net income for the quarter was $-1M. Gross margin was 35.8%. Revenue grew -44.6% year-over-year compared to Q3 2024. Operating income came in at $-2M.

In Q2 2025, ClearSign Technologies Corp reported revenue of $133,000 and earnings per share (EPS) of $-0.30. Net income for the quarter was $-2M. Gross margin was 41.3%. Revenue grew 195.6% year-over-year compared to Q2 2024. Operating income came in at $-2M.

Over the past 8 quarters, ClearSign Technologies Corp has demonstrated a growth trajectory, with revenue expanding from $45,000 to $3M. Investors analyzing CLIR stock should weigh these quarterly trends alongside the valuation and quality metrics discussed above.

CLIR Dividend Yield and Income Analysis

ClearSign Technologies Corp (CLIR) does not currently pay a dividend. This is common among smaller companies in the Measuring And Control Equipment industry that prefer to reinvest cash flows into business expansion rather than returning capital to shareholders. Income-focused investors looking for Technology dividend stocks may want to explore other Technology stocks or use the stock screener to filter by dividend yield.

CLIR Momentum and Technical Analysis Profile

ClearSign Technologies Corp (CLIR) has a momentum factor score of 48/100, reflecting neutral trend characteristics. The stock is neither significantly outperforming nor underperforming the broader market on a momentum basis. The investment factor score is 20/100, which measures capital allocation efficiency and asset growth patterns. The short interest score of 68/100 reflects moderate short selling activity.

CLIR vs Competitors — Technology Sector Ranking and Peer Comparison

Within the Technology sector, ClearSign Technologies Corp (CLIR) ranks #252 out of 584 stocks based on the Blank Capital composite score. This places CLIR in the upper half of all Technology stocks in our coverage universe. Key competitors and sector peers include IHS Holding Ltd (IHS) with a score of 55.0/100, VERISIGN INC/CA (VRSN) with a score of 56.0/100, ESCO TECHNOLOGIES INC (ESE) with a score of 51.7/100, CareCloud, Inc. (CCLD) with a score of 46.9/100, and MMTec, Inc. (MTC) with a score of 47.4/100.

Comparing CLIR against the S&P 500 benchmark is also instructive for understanding relative performance. Investors can view the full CLIR vs S&P 500 (SPY) comparison to assess how ClearSign Technologies Corp stacks up against the broader market across all factor dimensions.

CLIR Next Earnings Date

No upcoming earnings date has been announced for ClearSign Technologies Corp (CLIR) at this time. Check the earnings calendar for the latest scheduling updates across all stocks in our coverage universe.

Should You Buy CLIR? — Investment Thesis Summary

The quantitative profile for ClearSign Technologies Corp suggests caution. The quality score of 20/100 flags below-average profitability. The value score of 31/100 indicates premium valuation. High volatility (stability score 30/100) increases portfolio risk.

In summary, ClearSign Technologies Corp (CLIR) earns a Reduce rating with a composite score of 34.5/100 as of April 2026. The rating is derived from the Blank Capital Research methodology, which combines six factor dimensions into a single quantitative ranking. Investors should consider these quantitative signals alongside their own fundamental research, risk tolerance, and investment time horizon before making buy or sell decisions on CLIR stock.

Related Resources for CLIR Investors

Explore more research and tools: CLIR vs S&P 500 comparison, top Technology stocks, stock screener, our methodology, quality factor explained, value factor explained, momentum factor explained. Compare CLIR head-to-head with peers: CLIR vs IHS, CLIR vs VRSN, CLIR vs ESE.