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NASDAQ · CLIR

ClearSign Technologies Corporation

Industrials · Industrial - Pollution & Treatment Controls

$3.21

Up+$0.10 (+3.22%)

Updated Oct 11, 2026, 6:16 AM

SID Score

4.8/10

Composite research score

Smart Money

—

Institutional and insider signal

Market cap
31.37M
P/E ratio
-5.17
Dividend yield
0.00%
52-week range
$0.52 – $7.56
Volume
25.6K
Avg. volume
819.03K

Price performance · CLIR

CLIR price history

1M range · 20 trading sessions · Daily adjusted prices

Prices through Oct 9, 2026

CLIR closed at $3.21 after 20 trading sessions, down 16.62% for the selected period.

Last close
$3.21
Period change
-16.62%
Period low
$3.11
Period high
$4.04
Daily close
View OHLC price history
CLIR OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Oct 9, 2026$3.12$3.32$3.12$3.2125.6K
Oct 8, 2026$3.265$3.43$3.11$3.1113.78K
Oct 7, 2026$3.24$3.385$3.24$3.309.69K
Oct 6, 2026$3.30$3.77$3.29$3.309.11K
Oct 5, 2026$3.53$3.7399$3.30$3.3041.68K
Oct 2, 2026$3.57$3.6355$3.4109$3.5128.44K
Oct 1, 2026$3.33$3.7556$3.26$3.5513.98K
Sep 30, 2026$3.76$3.8564$3.55$3.557.79K
Sep 29, 2026$3.65$3.90$3.65$3.736.79K
Sep 28, 2026$3.50$3.705$3.29$3.6531.81K
Sep 25, 2026$3.59$3.595$3.375$3.450511.66K
Sep 24, 2026$3.52$3.725$3.405$3.4617.41K
Sep 23, 2026$3.76$4.005$3.47$3.5436.85K
Sep 22, 2026$3.77$3.96$3.75$3.756.1K
Sep 21, 2026$3.85$4.05$3.79$3.7910.78K
Sep 18, 2026$3.7078$3.90$3.705$3.8519.24K
Sep 17, 2026$3.60$3.75$3.60$3.618.7K
Sep 16, 2026$3.8803$3.98$3.50$3.5271.97K
Sep 15, 2026$3.80$4.1774$3.79$4.0355.87K
Sep 14, 2026$3.97$4.265$3.80$3.8523.77K

Latest CLIR news

The latest Smart Investors Daily articles mentioning CLIR.

Stock researchCompany · Overview

CLIR research

Overview

Company profile and research snapshot.

Company profile

ClearSign Technologies Corp is engaged in providing solutions to some of the pressing productivity, energy efficiency, and pollution problems affecting the energy, oil, and gas production, boiler, and processing industries. It believes that its patented ClearSign Core technology can enhance the performance of combustion systems in a broad range of markets, including the energy (upstream oil production and downstream refining), institutional, commercial, and industrial boiler, chemical, and petrochemical industries. The company offers products that include process burners, boiler burners, flares, and ClearSign Eye.

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Analyst outlook

Consensus and target data currently published for this company.

Consensus
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Average target
—
Implied upside
—
Analysts
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CLIR recent ratings
DateFirmRatingTarget
Apr 14, 2026HC Wainwright & Co.Buy—
Apr 17, 2025HC Wainwright & Co.Buy—
Aug 22, 2024HC Wainwright & Co.Buy—
May 28, 2024HC Wainwright & Co.Buy—
Apr 24, 2024HC Wainwright & Co.Buy—
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News briefing

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Yahoo · Oct 1, 2026

ClearSign Receives Order for "M1" Series Burner from Tulsa Heaters Midstream (THM)

Fourth Burner Sold to THM for West Texas CustomerTULSA, OK / ACCESS Newswire / October 1, 2026 / Corporation (NASDAQ:CLIR) ("ClearSign" or the "Company"), a leader in advanced combustion and sensing technologies that help industrial operators dramatically reduce emissions, increase efficiency and support the use of cleaner fuels including hydrogen, today announces that it has received another purchase order for a ClearSign Core™ M1 burner. The order was received from heater manufacturer Tulsa He

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