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ClearSign Technologies Corporation (CLIR) fundamental analysis — strengths, weaknesses & financial health based on data analysis
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ClearSign Technologies Corporation (CLIR) stock price & volume — 10-year historical chart
ClearSign Technologies Corporation (CLIR) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR
ClearSign Technologies Corporation (CLIR) EPS & revenue vs analyst estimates — last 4 quarters
| Quarter | Date | EPS (Act vs Est) | Revenue (Act vs Est) |
|---|---|---|---|
| Q2 2026Latest | May 20, 2026 | $0.39vs $0.29-34.5% | $191,000vs $1M-85.0% |
| Q2 2026 | May 15, 2026 | $0.39vs $0.29-34.5% | $191,000vs $1M-85.0% |
| Q2 2026 | Apr 9, 2026 | $0.01vs $0.30+103.3% | $4Mvs $2M+52.6% |
| Q4 2025 | Nov 14, 2025 | $0.03vs $0.04+25.0% | $1Mvs $2M-57.6% |
ClearSign Technologies Corporation (CLIR) competitors in Air and Water Treatment Systems — business model, growth, and fundamentals comparison
ClearSign Technologies Corporation (CLIR) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.
ClearSign Technologies Corporation (CLIR) annual income statement — 10-year revenue, gross profit & net income history
| Metric | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 | TTM |
|---|---|---|---|---|---|---|---|---|---|---|
Sales/Revenue | 540K | 530K | 0 | 0 | 607K | 374K | 2.4M | 3.6M | 5.23M | 5.02M |
Revenue Growth % | -13.04% | -1.85% | -100% | - | - | -38.39% | 542.51% | 49.65% | 45.55% | 73.54% |
Cost of Goods Sold | 380K | 427K | 1K | 279K | 1.06M | 258K | 1.59M | 2.48M | 3.81M | 4.19M |
COGS % of Revenue | 70.37% | 80.57% | - | - | 174.46% | 68.98% | 66% | 68.91% | 72.79% | - |
Gross Profit | 160K▲ 0% | 103K▼ 35.6% | -1K▼ 101.0% | -279K▼ 27800.0% | -452K▼ 62.0% | 116K▲ 125.7% | 817K▲ 604.3% | 1.12M▲ 36.8% | 1.42M▲ 27.4% | 835K▲ 0% |
Gross Margin % | 29.63% | 19.43% | - | - | -74.46% | 31.02% | 34% | 31.09% | 27.21% | 16.62% |
Gross Profit Growth % | 17.65% | -35.63% | -100.97% | -27800% | -62.01% | 125.66% | 604.31% | 36.84% | 27.37% | - |
Operating Expenses | 9.87M | 9.67M | 8.58M | 6.65M | 7.69M | 6M | 6.8M | 7.61M | 7.36M | 7.1M |
OpEx % of Revenue | 1828.15% | 1825.28% | - | - | 1267.38% | 1604.55% | 282.9% | 211.51% | 140.6% | - |
Selling, General & Admin | 5.16M | 5.62M | 5.53M | 4.62M | 5.01M | 5.73M | 6.06M | 6.13M | 6.67M | 6.3M |
SG&A % of Revenue | 955.56% | 1060.75% | - | - | 825.86% | 1531.55% | 252.14% | 170.61% | 127.49% | - |
Research & Development | 4.71M | 4.05M | 3.06M | 2.03M | 2.68M | 505K | 739K | 1.47M | 1.42M | 1.22M |
R&D % of Revenue | 872.59% | 764.53% | - | - | 441.52% | 135.03% | 30.75% | 40.91% | 27.17% | - |
Other Operating Expenses | 0 | 0 | 0 | 0 | 0 | -232K | 0 | 0 | -736K | -429K |
Operating Income | -9.71M▲ 0% | -9.57M▲ 1.5% | -8.58M▲ 10.3% | -6.93M▲ 19.2% | -8.14M▼ 17.5% | -5.88M▲ 27.7% | -5.98M▼ 1.6% | -6.49M▼ 8.5% | -5.93M▲ 8.5% | -6.26M▲ 0% |
Operating Margin % | -1798.52% | -1805.85% | - | - | -1341.85% | -1573.53% | -248.9% | -180.42% | -113.39% | -124.68% |
Operating Income Growth % | 13.32% | 1.45% | 10.32% | 19.24% | -17.5% | 27.75% | -1.63% | -8.48% | 8.52% | - |
EBITDA | -9.41M | -9.3M | -8.34M | -6.72M | -7.88M | -5.59M | -5.56M | -6.22M | -5.66M | -5.99M |
EBITDA Margin % | -1743.52% | -1754.72% | - | - | -1299.01% | -1495.45% | -231.25% | -172.86% | -108.1% | -119.25% |
EBITDA Growth % | 14.39% | 1.22% | 10.29% | 19.43% | -17.3% | 29.07% | 0.64% | -11.86% | 8.98% | 17.01% |
D&A (Non-Cash Add-back) | 297K | 271K | 240K | 210K | 260K | 292K | 424K | 272K | 277K | 273K |
EBIT | -9.71M | -9.57M | -8.48M | -6.89M | -7.89M | -5.88M | -5.73M | -5.82M | -5.93M | -5.9M |
Net Interest Income | 32K | 71K | 101K | 2K | 1K | 83K | 0 | 516K | 439K | 368K |
Interest Income | 32K | 71K | 101K | 2K | 1K | 83K | 0 | 516K | 439K | 368K |
Interest Expense | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Other Income/Expense | 32K | 71K | 101K | 46K | 253K | 127K | 787K | 1.19M | 439K | 654K |
Pretax Income | -9.68M▲ 0% | -9.5M▲ 1.9% | -8.48M▲ 10.7% | -6.89M▲ 18.8% | -7.89M▼ 14.6% | -5.76M▲ 27.0% | -5.19M▲ 9.8% | -5.3M▼ 2.0% | -5.5M▼ 3.7% | -5.61M▲ 0% |
Pretax Margin % | -1792.59% | -1792.45% | - | - | -1300.16% | -1539.57% | -216.15% | -147.36% | -105.01% | -111.66% |
Income Tax | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Effective Tax Rate % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
Net Income | -9.68M▲ 0% | -9.5M▲ 1.9% | -8.38M▲ 11.8% | -6.84M▲ 18.4% | -7.89M▼ 15.4% | -5.76M▲ 27.0% | -5.19M▲ 9.8% | -5.3M▼ 2.0% | -5.5M▼ 3.7% | -5.61M▲ 0% |
Net Margin % | -1792.59% | -1792.45% | - | - | -1299.84% | -1539.57% | -216.15% | -147.36% | -105.01% | -111.66% |
Net Income Growth % | 13.36% | 1.86% | 11.81% | 18.38% | -15.38% | 27.02% | 9.8% | -2.02% | -3.72% | 10.48% |
Net Income (Continuing) | -9.68M | -9.5M | -8.48M | -6.89M | -7.89M | -5.76M | -5.19M | -5.3M | -5.5M | -5.61M |
Discontinued Operations | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Minority Interest | 0 | 0 | 3K | 1K | 0 | 0 | 0 | 0 | 0 | 0 |
EPS (Diluted) | -6.30▲ 0% | -4.20▲ 33.3% | -3.10▲ 26.2% | -2.50▲ 19.4% | -2.50▲ 0.0% | -1.50▲ 40.0% | -1.30▲ 13.3% | -1.10▲ 15.4% | -0.99▲ 10.0% | -1.00▲ 0% |
EPS Growth % | 26.74% | 33.33% | 26.19% | 19.35% | 0% | 40% | 13.33% | 15.38% | 10% | 18.06% |
EPS (Basic) | -6.30 | -4.20 | -3.10 | -2.50 | -2.50 | -1.50 | -1.30 | -1.10 | -0.99 | - |
Diluted Shares Outstanding | 1.54M | 2.28M | 2.67M | 2.78M | 3.12M | 3.53M | 3.85M | 4.89M | 5.55M | 5.63M |
Basic Shares Outstanding | 1.54M | 2.28M | 2.67M | 2.78M | 3.12M | 3.53M | 3.85M | 4.89M | 5.55M | 5.63M |
Dividend Payout Ratio | - | - | - | - | - | - | - | - | - | - |
ClearSign Technologies Corporation (CLIR) balance sheet — assets, liabilities & shareholders' equity
| Metric | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 | TTM |
|---|---|---|---|---|---|---|---|---|---|---|
Total Current Assets | 1.8M | 16.41M | 8.98M | 9.38M | 8.02M | 9.73M | 6.51M | 14.85M | 11.23M | 8.35M |
Cash & Short-Term Investments | 1.25M | 15.87M | 8.55M | 8.82M | 7.61M | 9.06M | 5.68M | 14.04M | 9.18M | 7.74M |
Cash Only | 1.25M | 8.95M | 8.55M | 8.82M | 7.61M | 6.45M | 5.68M | 14.04M | 9.18M | 7.74M |
Short-Term Investments | 0 | 6.92M | 0 | 0 | 0 | 2.61M | 0 | 0 | 0 | 0 |
Accounts Receivable | 184K | 39K | 39K | 92K | 72K | 99K | 475K | 359K | 1.36M | 179K |
Days Sales Outstanding | 124.37 | 26.86 | - | - | 43.29 | 96.62 | 72.15 | 36.44 | 94.84 | 48.49 |
Inventory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Days Inventory Outstanding | - | - | - | - | - | - | - | - | - | - |
Other Current Assets | 0 | 0 | 0 | 0 | 0 | 577K | 0 | 454K | 688K | 431K |
Total Non-Current Assets | 2.36M | 2.16M | 1.96M | 1.74M | 1.34M | 1.19M | 1.11M | 1.07M | 955K | 1.49M |
Property, Plant & Equipment | 508K | 467K | 665K | 427K | 530K | 384K | 275K | 238K | 195K | 166K |
Fixed Asset Turnover | 1.06x | 1.13x | - | - | 1.15x | 0.97x | 8.74x | 15.11x | 26.84x | 24.07x |
Goodwill | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Intangible Assets | 1.86M | 1.69M | 1.28M | 1.3M | 799K | 798K | 836K | 830K | 760K | 764K |
Long-Term Investments | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 127K |
Other Non-Current Assets | 0 | 0 | 10K | 10K | 10K | 10K | 0 | 0 | 0 | 433K |
Total Assets | 4.16M▲ 0% | 18.57M▲ 346.3% | 10.94M▼ 41.1% | 11.12M▲ 1.6% | 9.36M▼ 15.8% | 10.93M▲ 16.7% | 7.62M▼ 30.3% | 15.92M▲ 108.9% | 12.18M▼ 23.5% | 9.84M▲ 0% |
Asset Turnover | 0.13x | 0.03x | - | - | 0.06x | 0.03x | 0.32x | 0.23x | 0.43x | 0.41x |
Asset Growth % | 9.9% | 346.29% | -41.08% | 1.64% | -15.81% | 16.68% | -30.25% | 108.87% | -23.47% | -101.4% |
Total Current Liabilities | 1.53M | 1.64M | 1.3M | 1.08M | 731K | 1.15M | 2.26M | 2.04M | 2.58M | 2.17M |
Accounts Payable | 587K | 823K | 845K | 435K | 224K | 296K | 256K | 78K | 1.64M | 644K |
Days Payables Outstanding | 563.83 | 703.5 | 308.43K | 569.09 | 77.2 | 418.76 | 58.92 | 11.49 | 157.5 | 119 |
Short-Term Debt | 159K | 216K | 177K | 169K | 0 | 0 | 0 | 0 | 96K | 98K |
Deferred Revenue (Current) | -587K | -823K | 50K | 94K | 0 | 247K | 1.04M | 73K | 0 | 2.89M |
Other Current Liabilities | 629K | 382K | 0 | 0 | 84K | 0 | 181K | 471K | 280K | 1.11M |
Current Ratio | 1.17x | 10.03x | 6.92x | 8.69x | 10.98x | 8.49x | 2.89x | 7.28x | 4.34x | 3.85x |
Quick Ratio | 1.17x | 10.03x | 6.92x | 8.69x | 10.98x | 8.49x | 2.89x | 7.28x | 4.34x | 3.85x |
Cash Conversion Cycle | - | - | - | - | - | - | - | - | - | -70.51 |
Total Non-Current Liabilities | 195K | 91K | 418K | 500K | 350K | 226K | 172K | 113K | 67K | 42K |
Long-Term Debt | 0 | 0 | 0 | 251K | 0 | 0 | 0 | 0 | 0 | 0 |
Capital Lease Obligations | 195K | 91K | 418K | 249K | 350K | 226K | 172K | 113K | 67K | 315K |
Deferred Tax Liabilities | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Other Non-Current Liabilities | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total Liabilities | 1.73M | 1.73M | 1.72M | 1.58M | 1.08M | 1.37M | 2.43M | 2.15M | 2.65M | 2.21M |
Total Debt | 354K | 307K | 595K | 669K | 555K | 359K | 243K | 188K | 163K | 140K |
Net Debt | -893K | -8.64M | -7.96M | -8.15M | -7.05M | -6.09M | -5.44M | -13.85M | -9.02M | -7.6M |
Debt / Equity | 0.15x | 0.02x | 0.06x | 0.07x | 0.07x | 0.04x | 0.05x | 0.01x | 0.02x | 0.02x |
Debt / EBITDA | - | - | - | - | - | - | - | - | - | -0.02x |
Net Debt / EBITDA | - | - | - | - | - | - | - | - | - | 1.27x |
Interest Coverage | - | - | - | - | - | - | - | - | - | - |
Total Equity | 2.43M▲ 0% | 16.84M▲ 592.5% | 9.23M▼ 45.2% | 9.54M▲ 3.4% | 8.28M▼ 13.2% | 9.55M▲ 15.3% | 5.19M▼ 45.6% | 13.76M▲ 165.1% | 9.53M▼ 30.8% | 7.62M▲ 0% |
Equity Growth % | 8.38% | 592.52% | -45.22% | 3.41% | -13.2% | 15.33% | -45.64% | 165.1% | -30.76% | -140.65% |
Book Value per Share | 1.58 | 7.39 | 3.46 | 3.43 | 2.65 | 2.70 | 1.35 | 2.81 | 1.72 | 1.35 |
Total Shareholders' Equity | 2.43M | 16.84M | 9.22M | 9.54M | 8.28M | 9.55M | 5.19M | 13.76M | 9.53M | 7.62M |
Common Stock | 2K | 3K | 3K | 3K | 3K | 4K | 4K | 5K | 1K | 1K |
Retained Earnings | -50.01M | -59.58M | -67.99M | -74.87M | -82.77M | -88.52M | -93.72M | -99.02M | -104.51M | -106.7M |
Treasury Stock | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Accumulated OCI | -1.14M | -1.37M | 0 | 0 | 9K | -8K | -17K | -21K | -20K | -18K |
Minority Interest | 0 | 0 | 3K | 1K | 0 | 0 | 0 | 0 | 0 | 0 |
ClearSign Technologies Corporation (CLIR) cash flow — operating, investing & free cash flow history
| Metric | Dec'17 | Dec'18 | Dec'19 | Dec'20 | Dec'21 | Dec'22 | Dec'23 | Dec'24 | Dec'25 | TTM |
|---|---|---|---|---|---|---|---|---|---|---|
Cash from Operations | -8.26M | -8.38M | -6.9M | -5.96M | -6.71M | -4.99M | -3.23M | -4.37M | -4.74M | -4.97M |
Operating CF Margin % | -1529.26% | -1581.89% | - | - | -1104.94% | -1334.76% | -134.54% | -121.61% | -90.49% | - |
Operating CF Growth % | 4.77% | -1.53% | 17.68% | 13.59% | -12.46% | 25.57% | 35.24% | -35.26% | -8.3% | -191.79% |
Net Income | -9.68M | -9.5M | -8.48M | -6.89M | -7.89M | -5.76M | -5.19M | -5.3M | -5.5M | -5.61M |
Depreciation & Amortization | 297K | 271K | 240K | 210K | 448K | 292K | 424K | 272K | 277K | 274K |
Stock-Based Compensation | 369K | 224K | 685K | 800K | 680K | 373K | 614K | 528K | 893K | 81K |
Deferred Taxes | 0 | 322K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Other Non-Cash Items | 342K | 242K | 747K | 17K | 266K | -38K | 7K | 46K | 68K | 932K |
Working Capital Changes | 414K | 57K | -92K | -105K | -209K | 139K | 916K | 80K | -478K | -650K |
Change in Receivables | 103K | 145K | 0 | -53K | 20K | -27K | -376K | 117K | -1.2M | -215K |
Change in Inventory | -15K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Change in Payables | 13K | 312K | 0 | 0 | -393K | -125K | -57K | 816K | 378K | 528K |
Cash from Investing | -421K | -7.42M | 6.5M | -194K | -213K | -2.69M | 2.49M | -218K | -101K | -124K |
Capital Expenditures | -421K | -502K | -20K | -17K | -73K | -10K | -200K | -39K | 0 | -124K |
CapEx % of Revenue | 77.96% | 94.72% | - | - | 12.03% | 2.67% | 8.32% | 1.08% | 1.93% | 2.47% |
Acquisitions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Investments | - | - | - | - | - | - | - | - | - | - |
Other Investing | -327K | -7.33M | -398K | -177K | -140K | -115K | 5K | -179K | -101K | 0 |
Cash from Financing | 8.67M | 23.51M | 0 | 6.43M | 5.69M | 6.54M | -15K | 12.95M | -21K | -36K |
Debt Issued (Net) | 0 | 0 | 0 | 251K | 0 | 0 | 0 | 0 | 0 | 0 |
Equity Issued (Net) | 8.67M | 23.51M | 0 | 6.05M | 5.31M | 6.54M | 0 | 12.97M | 24K | 0 |
Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Other Financing | 0 | 0 | 0 | 126K | 385K | 0 | -15K | -21K | -45K | -36K |
Net Change in Cash | -12K▲ 0% | 7.7M▲ 64283.3% | -397K▼ 105.2% | 272K▲ 168.5% | -1.22M▼ 547.4% | -1.16M▲ 5.0% | -767K▲ 33.7% | 8.35M▲ 1188.8% | -4.86M▼ 158.2% | -5.13M▲ 0% |
Free Cash Flow | -8.68M▲ 0% | -8.89M▼ 2.4% | -7.32M▲ 17.6% | -6.16M▲ 15.9% | -6.92M▼ 12.4% | -5.16M▲ 25.5% | -3.43M▲ 33.4% | -4.59M▼ 33.7% | -4.84M▼ 5.4% | -5.01M▲ 0% |
FCF Margin % | -1607.22% | -1676.6% | - | - | -1140.03% | -1378.61% | -142.86% | -127.67% | -92.42% | -99.76% |
FCF Growth % | 10.76% | -2.39% | 17.62% | 15.87% | -12.37% | 25.49% | 33.42% | -33.73% | -5.36% | -8.91% |
FCF per Share | -5.65 | -3.90 | -2.74 | -2.21 | -2.22 | -1.46 | -0.89 | -0.94 | -0.87 | -0.89 |
FCF Conversion (FCF/Net Income) | 0.85x | 0.88x | 0.82x | 0.87x | 0.85x | 0.87x | 0.62x | 0.83x | 0.86x | 0.89x |
Interest Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Taxes Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
ClearSign Technologies Corporation (CLIR) financial ratios — P/E, ROE, debt and 30+ core market and balance-sheet ratios
| Metric | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | TTM |
|---|---|---|---|---|---|---|---|---|---|---|
Return on Equity (ROE) | -414.03% | -98.58% | -64.28% | -72.87% | -88.54% | -64.57% | -70.46% | -55.91% | -47.19% | -61.23% |
Return on Invested Capital (ROIC) | -481.27% | -147.41% | -135.96% | -391.64% | -467.03% | -188.22% | -279.4% | - | -2060.76% | 783.33% |
Gross Margin | 29.63% | 19.43% | - | - | -74.46% | 31.02% | 34% | 31.09% | 27.21% | 16.62% |
Net Margin | -1792.59% | -1792.45% | - | - | -1299.84% | -1539.57% | -216.15% | -147.36% | -105.01% | -111.66% |
Debt / Equity | 0.15x | 0.02x | 0.06x | 0.07x | 0.07x | 0.04x | 0.05x | 0.01x | 0.02x | 0.02x |
FCF Conversion | 0.85x | 0.88x | 0.82x | 0.87x | 0.85x | 0.87x | 0.62x | 0.83x | 0.86x | 0.89x |
Revenue Growth | -13.04% | -1.85% | -100% | - | - | -38.39% | 542.51% | 49.65% | 45.55% | 73.54% |
ClearSign Technologies Corporation (CLIR) SEC filings — annual & quarterly reports (10-K, 10-Q)
May 28, 2026·SEC
May 21, 2026·SEC
Apr 10, 2026·SEC
ClearSign Technologies Corporation (CLIR) stock FAQ — growth, dividends, profitability & financials explained
ClearSign Technologies Corporation (CLIR) reported $5.0M in revenue for fiscal year 2025.
ClearSign Technologies Corporation (CLIR) grew revenue by 45.6% over the past year. This is strong growth.
ClearSign Technologies Corporation (CLIR) reported a net loss of $5.6M for fiscal year 2025.
ClearSign Technologies Corporation (CLIR) has a return on equity (ROE) of -47.2%. Negative ROE indicates the company is unprofitable.
ClearSign Technologies Corporation (CLIR) had negative free cash flow of $5.0M in fiscal year 2025, likely due to heavy capital investments.