Stock listing
NASDAQ:CLIR ClearSign Technologies Corporation Stock
Home listing (NASDAQ) of ClearSign Technologies Corporation
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Share price · NASDAQ:CLIR
$2.31 USD -0.15 (-6.1%)
Close on Oct 30, 2026
- Day range
- $2.20 – $2.43 USDOct 30, 2026
- Volume
- 25,337 sharesOct 30, 2026
- Market cap
- $15.73M USDAt the close on Oct 30, 2026 · price × 6.81M shares outstanding
- 52-week range
- $2.12 – $9.80 USDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $66,325 USDMedian day 13,900 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Prices by listing
| Listing | Last | Change | Volume | Open | High | Low | Previous close | Price from |
|---|---|---|---|---|---|---|---|---|
| NASDAQ:CLIR · Home | $2.31 USD | -0.15 (-6.1%) | 25,337 | $2.405 | $2.426 | $2.20 | $2.46 | Close on Oct 30, 2026 |
| LSE:0I0B | $2.27 USD | -0.31 (-12.0%) | 1 | $2.27 | $2.27 | $2.27 | $2.58 | Close on Oct 23, 2026 |
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · NASDAQ:CLIR · USD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $2.31 | -0.15 | -6.1% | $2.405 | $2.426 | $2.20 | 25,337 | |
| $2.46 | -0.02 | -0.8% | $2.48 | $2.52 | $2.40 | 8,411 | |
| $2.48 | -0.01 | -0.4% | $2.40 | $2.725 | $2.29 | 11,344 | |
| $2.49 | +0.19 | +8.3% | $2.35 | $2.60 | $2.35 | 6,686 | |
| $2.30 | -0.01 | -0.4% | $2.35 | $2.39 | $2.20 | 22,467 | |
| $2.31 | -0.14 | -5.7% | $2.40 | $2.53 | $2.17 | 16,300 | |
| $2.45 | +0.01 | +0.4% | $2.51 | $2.51 | $2.22 | 3,100 | |
| $2.44 | -0.05 | -2.0% | $2.50 | $2.54 | $2.32 | 9,500 | |
| $2.49 | +0.15 | +6.4% | $2.43 | $2.52 | $2.43 | 11,800 | |
| $2.34 | -0.06 | -2.5% | $2.50 | $2.56 | $2.12 | 47,700 | |
| $2.40 | -0.05 | -2.0% | $2.54 | $2.69 | $2.36 | 28,000 | |
| $2.45 | -0.19 | -7.2% | $2.77 | $2.78 | $2.35 | 24,800 | |
| $2.64 | -0.24 | -8.3% | $2.83 | $2.85 | $2.62 | 19,000 | |
| $2.88 | -0.08 | -2.7% | $3.01 | $3.13 | $2.86 | 33,300 | |
| $2.96 | -0.25 | -7.8% | $3.20 | $3.23 | $2.92 | 22,900 | |
| $3.21 | +0.10 | +3.2% | $3.12 | $3.32 | $3.12 | 25,600 | |
| $3.11 | -0.19 | -5.8% | $3.27 | $3.43 | $3.11 | 13,800 | |
| $3.30 | 0.00 | 0.0% | $3.24 | $3.39 | $3.24 | 9,700 | |
| $3.30 | 0.00 | 0.0% | $3.30 | $3.77 | $3.29 | 9,100 | |
| $3.30 | -0.21 | -6.0% | $3.53 | $3.74 | $3.30 | 41,700 | |
| $3.51 | -0.04 | -1.1% | $3.57 | $3.64 | $3.41 | 28,400 | |
| $3.55 | 0.00 | 0.0% | $3.33 | $3.76 | $3.26 | 14,000 | |
| $3.55 | -0.18 | -4.8% | $3.76 | $3.86 | $3.55 | 7,800 | |
| $3.73 | +0.08 | +2.2% | $3.65 | $3.90 | $3.65 | 6,800 | |
| $3.65 | +0.20 | +5.8% | $3.50 | $3.71 | $3.29 | 31,800 | |
| $3.45 | -0.01 | -0.3% | $3.59 | $3.60 | $3.38 | 11,700 | |
| $3.46 | -0.08 | -2.3% | $3.52 | $3.73 | $3.41 | 17,400 | |
| $3.54 | -0.21 | -5.6% | $3.76 | $4.01 | $3.47 | 36,900 | |
| $3.75 | -0.04 | -1.1% | $3.77 | $3.96 | $3.75 | 6,100 | |
| $3.79 | -0.06 | -1.6% | $3.85 | $4.05 | $3.79 | 10,800 | |
| $3.85 | +0.24 | +6.6% | $3.71 | $3.90 | $3.71 | 19,200 | |
| $3.61 | +0.09 | +2.6% | $3.60 | $3.75 | $3.60 | 8,700 | |
| $3.52 | -0.52 | -12.9% | $3.88 | $3.98 | $3.50 | 72,000 | |
| $4.04 | +0.19 | +4.9% | $3.80 | $4.18 | $3.79 | 5,900 | |
| $3.85 | -0.18 | -4.5% | $3.97 | $4.27 | $3.80 | 23,800 | |
| $4.03 | -0.01 | -0.2% | $4.09 | $4.18 | $3.74 | 68,700 | |
| $4.04 | -0.18 | -4.3% | $4.15 | $4.28 | $3.90 | 49,900 | |
| $4.22 | -0.09 | -2.1% | $4.41 | $4.41 | $4.22 | 3,300 | |
| $4.31 | +0.40 | +10.2% | $4.00 | $4.72 | $4.00 | 19,500 | |
| $3.91 | -0.19 | -4.6% | $3.98 | $4.15 | $3.90 | 9,200 | |
| $4.10 | -0.15 | -3.5% | $4.27 | $4.32 | $3.95 | 42,200 | |
| $4.25 | +0.10 | +2.4% | $4.22 | $4.45 | $4.10 | 10,700 | |
| $4.15 | -0.11 | -2.6% | $4.20 | $4.20 | $4.15 | 1,600 | |
| $4.26 | -0.21 | -4.7% | $4.35 | $4.36 | $4.22 | 5,000 | |
| $4.47 | -0.06 | -1.3% | $4.58 | $4.75 | $4.47 | 4,900 | |
| $4.53 | -0.13 | -2.8% | $4.70 | $4.81 | $4.50 | 7,100 | |
| $4.66 | -0.04 | -0.9% | $4.67 | $4.80 | $4.57 | 8,600 | |
| $4.70 | -0.14 | -2.9% | $4.88 | $4.936 | $4.614 | 29,286 | |
| $4.84 | +0.36 | +8.0% | $4.43 | $4.89 | $4.345 | 30,212 | |
| $4.48 | -0.21 | -4.5% | $4.20 | $4.56 | $4.09 | 23,100 | |
| $4.69 | +0.29 | +6.6% | $4.53 | $4.96 | $3.86 | 31,800 | |
| $4.40 | -0.27 | -5.8% | $4.71 | $4.77 | $4.29 | 22,600 | |
| $4.67 | +0.11 | +2.4% | $4.69 | $4.85 | $4.40 | 13,800 | |
| $4.56 | -0.09 | -1.9% | $4.67 | $5.00 | $4.31 | 20,900 | |
| $4.65 | +0.40 | +9.4% | $4.10 | $4.70 | $4.10 | 27,200 | |
| $4.25 | +0.12 | +2.9% | $4.11 | $4.25 | $4.11 | 3,500 | |
| $4.13 | -0.04 | -1.0% | $4.06 | $4.20 | $4.06 | 2,700 | |
| $4.17 | +0.26 | +6.6% | $3.95 | $4.17 | $3.86 | 25,800 | |
| $3.91 | +0.16 | +4.3% | $3.81 | $3.95 | $3.66 | 15,500 | |
| $3.75 | -0.09 | -2.3% | $3.79 | $3.79 | $3.75 | 3,500 | |
| $3.84 | -0.05 | -1.3% | $3.88 | $3.91 | $3.73 | 10,000 | |
| $3.89 | -0.11 | -2.7% | $3.98 | $4.11 | $3.83 | 4,500 | |
| $4.00 | +0.04 | +1.0% | $3.96 | $4.03 | $3.96 | 3,000 | |
| $3.96 | +0.10 | +2.6% | $3.87 | $4.33 | $3.86 | 18,300 | |
| $3.86 | -0.04 | -1.0% | $3.88 | $3.96 | $3.85 | 1,200 | |
| $3.90 | -0.12 | -3.0% | $3.80 | $3.97 | $3.80 | 2,700 |
- Ticker
- NASDAQ:CLIR
- Asset type
- Stock
- Sector
- Industrials
- Industry
- Machinery & industrial equipment
- Exchange
- NASDAQ
- Currency
- USD
What changed lately
Latest news release · Oct 22, 2026
ClearSign Selected to Present at the Starting Five Virtual Conference 2026 by MS Microcaps & GeoInvesting
Latest earnings call · Aug 19, 2026
Clearsign Technologies (NASDAQ:CLIR) Q2 2026 Earnings Call
Replay and transcript
Latest deck · September 2026
Investor Presentation (September 2026)
Investor deck · 15 slides
Calls
Replays
Clearsign Technologies (NASDAQ:CLIR) Q2 2026 Earnings Call
Wed, Aug 19, 2026 · 5:00 PM ET
Watch TranscriptClearsign Technologies (NASDAQ:CLIR) Q1 2026 Earnings Call
Wed, May 20, 2026 · 5:00 PM ET
Watch TranscriptClearsign Technologies (NASDAQ:CLIR) Q4 2025 Earnings Call
Thu, Apr 09, 2026 · 5:00 PM ET
Watch Transcript
Latest news
ClearSign Selected to Present at the Starting Five Virtual Conference 2026 by MS Microcaps & GeoInvesting
Oct 22, 2026
Closed $2.45 (+0.4%) on Oct 22, 2026
ClearSign Receives Order for "M1" Series Burner from Tulsa Heaters Midstream (THM)
Oct 1, 2026
Closed $3.55 (0.0%) on Oct 1, 2026
ClearSign to Present at The Water Tower Research Insights Conference on September 23, 2026
Sep 22, 2026
Closed $3.75 (-1.1%) on Sep 22, 2026
ClearSign Technologies Corporation to Present at H.C. Wainwright 28th Annual Global Investment Conference
Sep 10, 2026
Closed $4.04 (-4.3%) on Sep 10, 2026
ClearSign Technologies Corporation Provides Second Quarter 2026 Update
Aug 19, 2026
Closed $4.69 (+6.6%) on Aug 20, 2026
ClearSign Board of Directors Appoints Former ExxonMobil Global Technology Leader Larry Saddler
Aug 11, 2026
Closed $4.17 (+6.6%) on Aug 11, 2026
ClearSign Technologies Corporation Announces Second Quarter 2026 Conference Call
Aug 5, 2026
Closed $3.89 (-2.7%) on Aug 5, 2026
ClearSign Receives Order for "M1" Series Burner from Tulsa Midstream Heaters (THM)
Jul 28, 2026
Closed $4.04 (+1.5%) on Jul 28, 2026
ClearSign Announces Private Placement of $1,770,000
Jul 23, 2026
Closed $3.35 (+3.1%) on Jul 23, 2026
ClearSign Receives Additional "M1" Series Burner Order for Second Midstream Heater in West Texas
Jun 16, 2026
Closed $4.12 (-0.5%) on Jun 16, 2026
Financings
Private placement of common stock
Jul 23, 2026
Closed: US$1.77M raised · US$3.54 a share
Use of proceeds: Working capital, research and development, marketing and sales, and general corporate purposes
Decks
Investor Presentation (September 2026)
Investor deck · 15 slides · September 2026
Q1 2026 Earnings Presentation
Earnings · 17 slides · May 20, 2026
2026 BOILER Expo
Conference · 17 slides · April 2026
IPO Roadshow (March 2024)
IPO roadshow · 14 slides · Mar 19, 2024
ClearSign Technologies Corporation on 6ix
- Sector
- Industrials
- Industry
- Machinery & industrial equipment
- News releases
- 24 in the last 12 months · 155 in all · newest Oct 22, 2026 · oldest 2019
- Calls
- 22 calls with a replay · 22 with a transcript · latest Aug 19, 2026
- Decks
- 10 decks · latest September 2026
Where ClearSign Technologies Corporation is listed
| Listing | Exchange | Country | Currency |
|---|---|---|---|
| NASDAQ:CLIR · Home listing · This page | NASDAQ | United States | USD |
| LSE:0I0B | LSE | United Kingdom | USD |
| BOATS:CLIR | BOATS | United States | USD |
| Frankfurt:4CC0 | Frankfurt | Germany | EUR |
| Lang & Schwarz:A420V0 | Lang & Schwarz | Germany | EUR |
| LS Exchange:A420V0 | LS Exchange | Germany | EUR |
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