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ClearSign Technologies Corp (CLIR) Stock Fundamental Analysis & AI Rating 2026

CLIR Nasdaq Industrial Instruments For Measurement, Display, and Control DE CIK: 0001434524
Updated This Month • Analysis: Mar 22, 2026 • SEC Data: 2025-09-30
Combined AI Rating
SELL
90% Confidence
AGREEMENT
STRONG SELL
92% Conf
SELL
88% Conf

📊 CLIR Key Takeaways

Revenue: $1.6M
Net Margin: -331.7%
Free Cash Flow: $-3.5M
Current Ratio: 3.28x
Debt/Equity: 0.00x
EPS: $-0.07
AI Rating: STRONG SELL with 92% confidence
ClearSign Technologies Corp (CLIR) receives a SELL rating with 90% confidence from our AI fundamental analysis based on SEC 10-K filings. With revenue of $1.6M, net profit margin of -331.7%, and return on equity (ROE) of -57.1%, ClearSign Technologies Corp demonstrates mixed fundamentals in the Industrial sector. Below is our complete CLIR stock analysis for 2026.

Is ClearSign Technologies Corp (CLIR) a Good Investment?

Claude

ClearSign Technologies is a pre-revenue or early-stage commercialization company burning significant cash with minimal revenue generation ($1.6M) and negative operating cash flow of -$3.5M. Despite holding substantial cash reserves of $10.5M relative to assets, the company is unprofitable with severe operating losses (-$5.8M) and demonstrates no clear path to profitability in the near term.

ChatGPT

ClearSign Technologies shows weak core fundamentals: revenue remains very small relative to its cost base, producing deeply negative operating and net margins and sustained cash burn. The balance sheet is a mitigating factor, with substantial cash, no long-term debt, and solid liquidity, but the business still needs meaningful revenue scaling and operating leverage before the fundamentals materially improve.

Why Buy ClearSign Technologies Corp Stock? CLIR Key Strengths

Claude
  • + Strong liquidity position with $10.5M cash providing runway for operations
  • + Zero long-term debt eliminates financial obligations and solvency risk
  • + Solid current ratio of 3.28x indicates short-term financial flexibility
  • + Positive gross margin of 39.6% suggests product-level economics are viable when revenue is achieved
ChatGPT
  • + Debt-free balance sheet with $10.49M in cash provides near-term financial flexibility
  • + Current and quick ratios of 3.28x indicate solid liquidity
  • + Positive gross margin of 39.6% suggests the product base can generate value if revenue scales

CLIR Stock Risks: ClearSign Technologies Corp Investment Risks

Claude
  • ! Severe cash burn rate of -$3.5M annually will deplete reserves within 3 years if not reversed
  • ! Revenue of only $1.6M against operating expenses indicates business model is far from viability
  • ! Negative operating margin of -374% and net margin of -331.7% demonstrate inability to control costs relative to revenue
  • ! Operating losses of -$5.8M dwarf revenue, suggesting product commercialization is failing to gain traction
  • ! Free cash flow of -$3.5M and ROE of -57.1% indicate value destruction and poor capital deployment
ChatGPT
  • ! Operating losses are extremely large relative to revenue, with a -374.0% operating margin
  • ! Free cash flow is deeply negative at -$3.46M, indicating ongoing cash consumption
  • ! Business scale is still very limited at $1.56M of revenue, raising concerns about commercialization and growth quality

Key Metrics to Watch

Claude
  • * Quarterly revenue growth trajectory and path to positive operating cash flow
  • * Monthly cash burn rate and runway extension timeline
  • * Gross margin sustainability and operating expense reduction initiatives
  • * Progress on product commercialization and customer acquisition metrics
ChatGPT
  • * Revenue growth and order conversion relative to fixed operating expenses
  • * Quarterly operating cash burn and ending cash balance

ClearSign Technologies Corp (CLIR) Financial Metrics & Key Ratios

Revenue
$1.6M
Net Income
$-5.2M
EPS (Diluted)
$-0.07
Free Cash Flow
$-3.5M
Total Assets
$12.7M
Cash Position
$10.5M

💡 AI Analyst Insight

Strong liquidity with a 3.28x current ratio provides a solid financial cushion.

CLIR Profit Margin, ROE & Profitability Analysis

Gross Margin 39.6%
Operating Margin -374.0%
Net Margin -331.7%
ROE -57.1%
ROA -40.7%
FCF Margin -221.2%

CLIR vs Industrial Sector: How ClearSign Technologies Corp Compares

How ClearSign Technologies Corp compares to Industrial sector averages

Net Margin
CLIR -331.7%
vs
Sector Avg 10.0%
CLIR Sector
ROE
CLIR -57.1%
vs
Sector Avg 15.0%
CLIR Sector
Current Ratio
CLIR 3.3x
vs
Sector Avg 1.8x
CLIR Sector
Debt/Equity
CLIR 0.0x
vs
Sector Avg 0.7x
CLIR Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is ClearSign Technologies Corp Stock Overvalued? CLIR Valuation Analysis 2026

Based on fundamental analysis, ClearSign Technologies Corp has mixed fundamental signals relative to the Industrial sector in 2026.

Return on Equity
-57.1%
Sector avg: 15%
Net Profit Margin
-331.7%
Sector avg: 10%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.00x
Sector avg: 0.7x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

ClearSign Technologies Corp Balance Sheet: CLIR Debt, Cash & Liquidity

Current Ratio
3.28x
Quick Ratio
3.28x
Debt/Equity
0.00x
Debt/Assets
28.8%
Interest Coverage
-5,845.00x
Long-term Debt
$0.0

CLIR Revenue & Earnings Growth: 5-Year Financial Trend

CLIR 5-year financial data: Year 2021: Revenue $607.0K, Net Income -$2.0M, EPS N/A. Year 2022: Revenue $607.0K, Net Income -$2.0M, EPS $-0.07. Year 2023: Revenue $2.4M, Net Income -$1.5M, EPS $-0.05. Year 2024: Revenue $3.6M, Net Income -$1.4M, EPS $-0.04. Year 2025: Revenue $5.2M, Net Income -$1.1M, EPS $-0.30.
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: ClearSign Technologies Corp's revenue has grown significantly by 762% over the 5-year period, indicating strong business expansion. The most recent EPS of $-0.30 indicates the company is currently unprofitable.

CLIR Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
-221.2%
Free cash flow / Revenue

CLIR Quarterly Earnings & Performance

Quarterly financial performance data for ClearSign Technologies Corp including revenue, net income, and earnings per share.
Quarter Revenue Net Income EPS
Q3 2025 $1.0M -$1.2M N/A
Q2 2025 $45.0K -$1.7M $-0.03
Q1 2025 $401.0K -$1.1M $-0.03
Q3 2024 $85.0K -$1.2M N/A
Q2 2024 $45.0K -$1.5M $-0.04
Q1 2024 $894.0K -$1.1M $-0.03
Q3 2023 $85.0K -$1.3M $-0.03
Q2 2023 $150.0K -$1.5M $-0.04

Data sourced from SEC EDGAR 10-Q quarterly filings. Figures may represent quarterly or cumulative values.

ClearSign Technologies Corp Dividends, Buybacks & Capital Allocation

Operating Cash Flow
-$3.5M
Cash generated from operations
Capital Expenditures
$4.0K
Investment in assets
Dividends
None
No dividend program

CLIR SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for ClearSign Technologies Corp (CIK: 0001434524)

📋 Recent SEC Filings

Date Form Document Action
Apr 10, 2026 8-K tm2611530d1_8k.htm View →
Apr 2, 2026 4 xslF345X06/tm2610943-3_4seq1.xml View →
Apr 2, 2026 4 xslF345X06/tm2610943-2_4seq1.xml View →
Apr 2, 2026 4 xslF345X06/tm2610943-1_4seq1.xml View →
Mar 31, 2026 10-K clir-20251231x10k.htm View →

Frequently Asked Questions about CLIR

What is the AI rating for CLIR?

ClearSign Technologies Corp (CLIR) has a Combined AI Rating of SELL from Claude (STRONG SELL) and ChatGPT (SELL) with 90% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are CLIR's key strengths?

Claude: Strong liquidity position with $10.5M cash providing runway for operations. Zero long-term debt eliminates financial obligations and solvency risk. ChatGPT: Debt-free balance sheet with $10.49M in cash provides near-term financial flexibility. Current and quick ratios of 3.28x indicate solid liquidity.

What are the risks of investing in CLIR?

Claude: Severe cash burn rate of -$3.5M annually will deplete reserves within 3 years if not reversed. Revenue of only $1.6M against operating expenses indicates business model is far from viability. ChatGPT: Operating losses are extremely large relative to revenue, with a -374.0% operating margin. Free cash flow is deeply negative at -$3.46M, indicating ongoing cash consumption.

What is CLIR's revenue and growth?

ClearSign Technologies Corp reported revenue of $1.6M.

Does CLIR pay dividends?

ClearSign Technologies Corp does not currently pay dividends.

Where can I find CLIR SEC filings?

Official SEC filings for ClearSign Technologies Corp (CIK: 0001434524) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is CLIR's EPS?

ClearSign Technologies Corp has a diluted EPS of $-0.07.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined rating reflects both perspectives for balanced insights.

Is CLIR a good stock to buy right now?

Based on our AI fundamental analysis in April 2026, ClearSign Technologies Corp has a SELL rating with 90% confidence. Review the strengths and risks sections above before making a decision. This is not investment advice.

Is CLIR stock overvalued or undervalued?

Valuation metrics for CLIR: ROE of -57.1% (sector avg: 15%), net margin of -331.7% (sector avg: 10%). Compare these metrics with sector averages to assess valuation.

Should I buy CLIR stock in 2026?

Our dual AI analysis gives ClearSign Technologies Corp a combined SELL rating for 2026. Revenue is data pending, with profitability at or below sector average. Always conduct your own research.

What is CLIR's free cash flow?

ClearSign Technologies Corp's operating cash flow is $-3.5M, with capital expenditures of $4.0K. FCF margin is -221.2%.

How does CLIR compare to other Industrial stocks?

Vs Industrial sector averages: Net margin -331.7% (avg: 10%), ROE -57.1% (avg: 15%), current ratio 3.28 (avg: 1.8).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: Mar 22, 2026 | Data as of: 2025-09-30 | Powered by Claude AI