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Upturn AI Summary - About
ClearSign Combustion Corporation(CLIR)
Advisory History & Simulated Performance *
*as per simulation (see disclosures)- ALL
- 1Y
- 1M
- 1W
- BUY Advisory
- SELL Advisory (Profit)
- SELL Advisory (Loss)
- Profit
- Loss
- PASS (Skip)
Stock price based on last close Advisory Performance History (Simulated)
Upturn Advisory & Investor View for CLIR
09/25/2026: CLIR (1-star) is currently NOT-A-BUY. Pass it for now.
ClearSign Combustion Corporation is a specialized industrial technology company that develops combustion systems designed to improve efficiency and reduce harmful emissions for industrial facilities. Its primary strength lies in proprietary technology that allows operators to retrofit existing equipment, offering a cost-effective path to environmental compliance. The key investment story revolves around the potential for widespread adoption of its technology amid tightening global emission regulations. However, the company faces significant risks, including intense competition from large industrial conglomerates and the challenges of achieving sustained profitability. It best suits investors comfortable with high-risk, high-reward profiles who monitor technology deployment milestones and industrial capital expenditure trends.
How to Read the Upturn Advisory
The Upturn Star Rating and the current BUY, SELL, or PASS advisory are generated by Upturn’s AI advisory engine based on proprietary signal analysis, price behavior, advisory history, and historical signal performance.
Company fundamentals, valuation, risks, and news provide supporting context about the business.
Investor Fit
| Investor style | Fit | Why |
|---|---|---|
| Growth investor | Mixed fit | The company offers potential high growth if its technology gains mass adoption, but remains in early commercial stages. |
| Momentum investor | Weak fit | Momentum suitability is conditional on positive technical and fundamental uptrends not currently consistently evident. |
| Value investor | Weak fit | The company's lack of consistent profitability makes it unsuitable for traditional value-based valuation metrics. |
| Dividend investor | Weak fit | The company does not pay dividends and focuses on growth and R&D. |
| Low-risk investor | Weak fit | High volatility and the risks inherent in technology commercialization make this stock unsuitable for low-risk profiles. |
Risk Profile
| Risk factor | Level | Why it matters |
|---|---|---|
| Price volatility | High | The stock is subject to significant price swings due to its small market capitalization and speculative growth profile. |
| Valuation risk | High | Valuation is often based on future growth expectations rather than current earnings, creating significant downside risk. |
| Competition risk (industrial conglomerate competition) | High | Established players with deeper pockets and integrated offerings pose a constant threat to market share. |
| Business quality | Medium | While the technology is innovative, the company is still establishing a consistent, self-sustaining business model. |
| Dividend income | Low / none | Investors should not expect income from this investment. |
| Execution risk | High | Successfully scaling technology and meeting industrial-grade deployment standards is technically and operationally demanding. |
Price Behavior
Steep Decline
The stock price has dropped sharply with strong downward pressure.
Extreme Price Shocks
The stock has experienced exceptionally large and disruptive price movements during the period.
Analysis of Past Performance
Type Stock | Historic Profit -52.22% | Avg. Invested days 22 | Today’s Advisory PASS |
Upturn Advisory Rating  | Upturn Advisory Performance  1.0 | Stock Returns Performance  1.0 |
| Profits based on simulation | Last Close 09/25/2026 |
Upturn Scorecard
Upturn Star Rating 
Company Fundamentals
Financial Health Rating
Growth Momentum Score
Ownership
Top 5 Institutional Investors
Unit Economics (Per $1K Revenue)
Economic Dimensions
Quantitative Style Profile
Style Classification
Quality Focused
Key Highlights
Company Size Small-Cap Stock | Market Capitalization 23.55M USD | Price to earnings Ratio - | 1Y Target Price 20 |
Price to earnings Ratio - | 1Y Target Price 20 | ||
Volume (30-day avg) 21.4K shares | Beta 1.42 | 52 Weeks Range 3.16 - 11.20 | Updated Date 09/25/2026 |
52 Weeks Range 3.16 - 11.20 | Updated Date 09/25/2026 | ||
Dividends yield (FY) - | Basic EPS (TTM) -0.01 |
How Company Makes Money
| Business area | What it includes | Retail investor read |
|---|---|---|
| Combustion Technology Sales | Direct sales of burner systems and licensing of proprietary combustion technology to industrial plants. | Revenue is earned by providing specialized equipment that helps factories reduce emissions. |
| Engineering Services | Consulting and implementation services for integrating ClearSign technologies into existing infrastructure. | The company also earns money by helping clients install and maintain their systems. |
Analyzing Revenue: Products, Geography and Growth
Revenue by Products
Product revenue - Year on Year
Valuation
Trailing PE - | Forward PE 72.99 | Enterprise Value 14.33M | Price to Sales(TTM) 4 |
Enterprise Value 14.33M | Price to Sales(TTM) 4 | ||
Enterprise Value to Revenue 2.63 | Enterprise Value to EBITDA -3.71 | Shares Outstanding 6.81M | Shares Floating 5.35M |
Shares Outstanding 6.81M | Shares Floating 5.35M | ||
Percent Insiders 4.67 | Percent Institutions 26.01 |
Upturn AI Summary
AI Summarization is directionally correct and might not be accurate.
Summarized information shown could be a few years old and not current.
Fundamental Rating based on AI could be based on old data.
AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.
Financial Metrics
🧭 Investment Snapshot
Total Revenue (Scale)
Total money earned from selling products or services before any costs. It is needed to understand the scale of the business and its ability to generate income.
Net Income (Profit)
Final profit after all expenses, interest, and taxes are deducted. It is needed to determine the overall profitability available to shareholders.
Free Cash Flow (Cash Strength)
Cash remaining after operating activities and capital expenditures, showing cash available for growth. It is needed to evaluate the company’s ability to invest, pay dividends, or reduce debt.
📈 Growth & Strength
Operating Income (Core Profit)
Profit from core operations after deducting all operating expenses. It is needed to measure how efficiently the company runs its primary business activities.
EBITDA (Cash Earnings)
Earnings before interest, taxes, depreciation, and amortization, indicating operating cash potential. It is needed to compare operating performance across companies without accounting or financing differences.
Gross Profit (Unit Profitability)
Revenue minus cost of revenue, showing profit after direct production costs. It is needed to evaluate core business profitability before overhead expenses.
🛡️ Financial Safety
Cash (Liquidity Buffer)
Total cash and cash equivalents on hand. It is needed to evaluate immediate liquidity and financial flexibility.
Total Debt (Leverage Risk)
Total debt including both short-term and long-term components. It is needed to assess the company’s leverage and financial risk.
Net Working Capital (Short-Term Health)
Current assets minus current liabilities, indicating short-term liquidity strength. It is needed to assess whether the company can meet its short-term obligations.
🧱 Balance Sheet Strength
Stockholder Equity (Net Worth)
Total equity value held by shareholders. It is needed to understand the net worth of the company from the owners’ perspective.
Total Assets (Asset Base)
The full value of everything the company owns, including cash, inventory, equipment, and investments. It is needed to understand the resource base used to generate revenue.
Income Before Tax (Pre-Tax Earnings)
Income before provision for income taxes. It is needed to analyze profitability independent of tax structures.
⚙️ Cost & Drag Factors
Cost of Revenue (Production Cost)
Direct costs required to produce and deliver the products or services sold. It is needed to assess efficiency in production and service delivery.
Total Operating Expenses (Operating Cost)
Indirect costs of running the business such as salaries, marketing, and administration. It is needed to understand how much it costs to sustain ongoing business operations.
Income Tax Expense (Tax Drag)
Amount of taxes paid or payable to the government. It is needed to evaluate the impact of taxation on overall profitability.
About ClearSign Combustion Corporation
Exchange NASDAQ | Headquarters Tulsa, OK, United States | ||
IPO Launch date 2012-04-25 | CEO & Director Dr. Colin James Deller Ph.D. | ||
Sector Industrials | Industry Pollution & Treatment Controls | Full time employees 16 | Website https://www.clearsign.com |
Full time employees 16 | Website https://www.clearsign.com | ||
ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems in the United States and the People's Republic of China. The company's technologies include ClearSign core burner technology consists of an industrial burner body and a downstream porous ceramic or metal flame stabilizing structure; ClearSign core process burner technology that provides a direct burner replacement for traditional refinery process heaters; ClearSign core boiler burner technology; ClearSign core flaring burners that can be used to provide a flare product with extremely low nitrogen oxide emissions; and ClearSign eye flame sensor, an electrical flame sensor for industrial applications. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. ClearSign Technologies Corporation was formerly known as ClearSign Combustion Corporation and changed its name to ClearSign Technologies Corporation in November 2019. The company was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.
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