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Research & education only — not financial advice.TENK is not a registered investment adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date. The operator and an affiliated trading operation may hold or trade the securities TENK rates — see Disclosures. Do your own research.

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Home›Stocks›CLIR
CLIR logo

CLIR

ClearSign Technologies Corp

Next earnings Aug 12, 2026 · consensus $-0.29 EPS, $696K rev

Last earnings +2.2% on 2026-05-21

Avoid
$4.06
▲ +11.54%
$4.06▼ -27.47%
over 1Y
L $3.39H $10.60
Earnings Dividend Split Congress buy Congress sellGrouped by date · hover a pin to expand
Today+11.5%
1W+19.8%
1M-9.0%
3M-15.9%
YTD-28.8%
1Y-27.5%
OverviewFinancialsValuationQualityTimelineFilings
Rating
Avoid
Quality
D
Valuation
Fair value
Filings
Clean
Avoid
Conviction
Horizon
Long (>12mo)
Street · 7 analysts
Buy

Real revenue growth but a cash-burning micro-cap that says it needs to sell stock to survive — speculative, not investable.

Revenue $5.23M · FY2025

ClearSign is doing the one thing a pre-profit hardware story needs to do — grow the top line. Revenue rose 45.6% to $5.23M in FY2025 and has compounded from just $374K in FY2022, a genuine 14x in three years. But that's where the good news ends. The unit economics don't work at this scale: gross margin is only 27.2%, so the $1.42M of gross profit is dwarfed by an operating loss of -$6.67M (operating margin -127.5%). Losses are not narrowing — net loss was -$5.50M, actually slightly worse than FY2024's -$5.30M — so faster sales are not yet bending the loss curve. The accumulated deficit is $104.5M against a $22M market cap; this company has consumed multiples of its own value and has never been profitable in its history.

The filing is unusually blunt about the core risk: management states it 'anticipate[s] our losses will continue to increase from current levels' and that cash on hand 'will likely not be sufficient' because target customers 'are, in general, slow to adopt new technologies.' The stated funding plan is to sell securities — 'we plan to obtain the necessary working capital for operations through the sale of our securities.' With $9.18M of cash and roughly $4.74M of annual operating cash burn, the runway is under two years, and the 5.41M share count (post reverse-split — the +10.4M% share-count figure is a split artifact, not real growth) makes further equity raises highly dilutive at a $4 stock. New shareholders are effectively pre-committed to being diluted.

Is CLIR a buy? The one-page verdict, explained →

The options angle

model · matches our verdict
Bear put spread (caution)~90d expiry
  • Long put 4 @ ~0.49 est
  • Short put 3.5 @ ~0.26 est
debit $23max +$27max −$23BE 3.77

AVOID means we wouldn't engage at all — if expressing the short side anyway, only with capped risk.

Open in the calculator →

Educational template, not a trade recommendation. Strikes and premiums are Black-Scholes model estimates from the last close and 30-day realized volatility — real chains, spreads and IV will differ. Options involve substantial risk.

Financials · annual, by fiscal year

Line itemFY21FY22FY23FY24FY25
Revenue$607K$374K$2.40M$3.60M$5.23M
Gross profit-$452K$116K$817K$1.12M$1.42M
Operating income-$8.14M-$6.12M-$5.98M-$6.49M-$6.67M
Net income-$7.89M-$5.76M-$5.19M-$5.30M-$5.50M
Diluted EPS-$0.25-$0.16-$0.13-$1.08-$0.99
Net margin-1300.0%-1539.6%-216.1%-147.4%-105.0%

10-year statements — income, cash flow, balance sheet & CSV export →

Annual figures from SEC 10-K XBRL filings. Open the filing links below for full statement detail.

Key statistics

Valuation

Enterprise value$16.8M
EV / EBITDA—
EV / Sales3.2
EV / FCF—
P / FCF—
PEG (trailing)—
Earnings yield-21.5%
FCF yield-18.5%

Quality & risk

ROIC (est.)-53.3%
Free cash flow-$4.74M
Total debt$349K
Net cash$8.83M
Altman Z-Score-6.74 distress
Piotroski F-Score2/8

Capital returns

Buyback yield—
Dividend yield (est.)—
Shareholder yield—
Shares Δ YoY+10401290.4%

Computed from SEC XBRL annual figures + the current quote. EV and ROIC use long-term + current debt where filed; estimates, not investment advice.

Disclosure timeline

SEC · 8-Ks + reports
Recent disclosure tone has been improving.
  1. 8-K Other event2026-06-18

    Other-events 8-K: business/press-release update; no financial results

  2. 8-K Shareholder vote2026-06-09

    Annual meeting vote results reported; board and proposals ratified

  3. 8-K Material agreement2026-06-01

    Entered a material definitive agreement — new contract/partnership signed

  4. 8-K Other event2026-05-28

    Other-events 8-K: operational/business update disclosed

  5. 8-K Earnings results2026-05-21

    Released Q1 2026 results; revenue growth continues, still loss-making

  6. 10-Q Quarterly report2026-05-15

    Q1 2026 10-Q: revenue growth continues amid ongoing losses and cash burn

  7. DEF 14A Proxy statement2026-04-28
  8. 8-K Earnings results2026-04-10

    FY2025 results: revenue +46% to $5.2M, net loss steady near $5.5M

  9. 10-K Annual report2026-03-31

    FY2025 10-K: revenue +46% to $5.2M, $5.5M loss, cash down to $9.2M

Recent filings

all on EDGAR ↗
4Period ending 2026-06-302026-07-02open ↗4Period ending 2026-06-302026-07-02open ↗4Period ending 2026-06-302026-07-02open ↗8-KPeriod ending 2026-06-182026-06-18open ↗8-KPeriod ending 2026-06-082026-06-09open ↗8-KPeriod ending 2026-05-282026-06-01open ↗424B5Filing2026-06-01open ↗424B5Filing2026-05-28open ↗8-KPeriod ending 2026-05-262026-05-28open ↗8-KPeriod ending 2026-05-202026-05-21open ↗10-QPeriod ending 2026-03-312026-05-15open ↗ARSPeriod ending 2025-12-312026-04-28open ↗

Quality score

D
ValueGrowthProfitHealthMom.
ValueC
GrowthB-
ProfitabilityF
Financial healthB-
MomentumF
  • ✓Revenue growing year-over-year
  • ✗Profitable (positive net income)
  • ✗Net margin above 10%
  • ✗Return on equity above 15%
  • ✓Liabilities below 2× equity
3.3952-week10.60
Revenue
$5.23M
+45.6% YoY
Net margin
-105.0%
ROE
-57.7%
P/E
—

SEC fundamentals · FY 2025

'21'22'23'24'25

■ revenue · ■ net income, by fiscal year

Revenue$5.23M+45.6%
Net income-$5.50M-3.7%
Gross profit$1.42M+27.4%
Operating income-$6.67M-2.8%
Diluted EPS-$0.99+8.3%
Cash & equivalents$9.18M-34.6%
Total assets$12.2M-25.2%
Total liabilities$2.65M+5.2%
Stockholders' equity$9.53M-30.8%
Gross: 27.2%Op.: -127.5%L/E: 0.28x

Frequently asked

Is ClearSign Technologies Corp (CLIR) a buy?
CLIR currently carries a Avoid rating with 4/5 conviction, derived from its latest SEC filings. Real revenue growth but a cash-burning micro-cap that says it needs to sell stock to survive — speculative, not investable.
What is ClearSign Technologies Corp's quality score?
CLIR scores 48.45649738610903/100 (grade D) on a SEC-grounded quality model spanning value, growth, profitability, financial health and momentum.

Sources: SEC EDGAR (CIK 0001434524, latest 10-Q filed 2026-05-15) · EODHD · Proprietary analysis · as of 7/4/2026, 4:32:55 AM.

›About this recommendation — produced by TENK/calls (tenkcalls.com), Luxembourg · not investment advice

AI-generated analysis, produced by our proprietary engine from SEC filing data.

Investment recommendation produced by TENK/calls (tenkcalls.com), Luxembourg. Completed Jul 4, 2026, 12:32 AM ET. Ratings & methodology: definitions · All recommendations to date: track record · Conflicts: disclosures. Not investment advice.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.

Insider activity

Form 4 · SEC

Last 90 days: 2 open-market buys · 0 sales

2026-04-23
Silva Gil Todd
Director
Buy1.00K @ $5.32$5.32K
2026-04-23
Silva Gil Todd
Director
Buy1.00K @ $5.25$5.25K
2026-03-17
Silva Gil Todd
Director
Buy2.00K @ $4.20$8.40K
2026-03-16
Silva Gil Todd
Director
Buy2.00K @ $4.36$8.71K

Earnings history

beat/miss · move
2026-05-21Miss -31.8% est▲ +4.99%8-K ↗
2026-04-10Miss -31.8% est▼ -22.33%8-K ↗
2026-02-25Beat +80.4% est▼ -5.58%8-K ↗
2026-01-07Beat +80.4% est▲ +38.04%8-K ↗
2025-11-21Beat +26.5% est▼ -7.77%8-K ↗
2025-08-15Beat +26.5% est▼ -6.23%8-K ↗

Dates from 8-K (Item 2.02); beat/miss = reported EPS vs consensus (Finnhub, recent quarters); move = prior close → close on/after.

Vs tracked universe

compare →

1195 tracked peers · median

TENK Score48 vs 67
Revenue growth45.6% vs 7.5%
Net margin-105.0% vs 10.0%
Return on equity-57.7% vs 12.0%
P/E— vs 26.2