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3.75
1.06%
-0.04
Clearsign Technologies Corp Stock (CLIR) Price History
The historical daily chart and data for Clearsign Technologies Corp stock (CLIR), show that the latest closing stock price as of September 22, 2026, is $3.75.
- Clearsign Technologies Corp all-time high stock price is $11.90, occurred on March 13, 2014.
- The lowest Clearsign Technologies Corp stock price recorded was $0.35 on March 20, 2020. Since then, Clearsign Technologies Corp's stock price has risen over 971.43% to $3.75 now.
- The 52-week high stock price for CLIR is $11.20, representing a 198.67% increase from the current share price, occurred on October 06, 2025.
- The 52-week low stock price for CLIR is $3.16, indicating a -15.73% decrease from the current share price, occurred on July 22, 2026.
- The closing price of Clearsign Technologies Corp (CLIR) stock in the beginning of 2025 was $1.47. The stock closed the year at $0.536, a loss of over -63.54% for the year.
The table below shows more information about CLIR historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Sep 22, 2026 | $3.96 | $3.75 | $0.21 | 6,100.0 | -1.06% |
| Sep 21, 2026 | $4.05 | $3.79 | $0.26 | 10,781.0 | -1.56% |
| Sep 18, 2026 | $3.90 | $3.71 | $0.195 | 19,241.0 | +6.65% |
| Sep 17, 2026 | $3.75 | $3.60 | $0.15 | 8,510.0 | +2.56% |
| Sep 16, 2026 | $3.98 | $3.50 | $0.48 | 71,972.0 | -12.76% |
| Sep 15, 2026 | $4.18 | $3.79 | $0.3874 | 5,865.0 | +4.81% |
| Sep 14, 2026 | $4.26 | $3.80 | $0.465 | 23,773.0 | -4.47% |
| Sep 11, 2026 | $4.17 | $3.73 | $0.44 | 68,707.0 | -0.25% |
| Sep 10, 2026 | $4.28 | $3.90 | $0.38 | 49,884.0 | -4.27% |
| Sep 09, 2026 | $4.41 | $4.22 | $0.19 | 3,314.0 | -2.09% |
| Sep 08, 2026 | $4.72 | $4.00 | $0.72 | 19,514.0 | +10.23% |
| Sep 04, 2026 | $4.14 | $3.90 | $0.25 | 9,241.0 | -4.59% |
| Sep 03, 2026 | $4.32 | $3.95 | $0.3729 | 42,186.0 | -3.58% |
| Sep 02, 2026 | $4.45 | $4.10 | $0.345 | 10,714.0 | +2.41% |
| Sep 01, 2026 | $4.20 | $4.15 | $0.05 | 1,606.0 | -2.58% |
| Aug 31, 2026 | $4.36 | $4.21 | $0.145 | 4,952.0 | -4.59% |
| Aug 28, 2026 | $4.75 | $4.46 | $0.28 | 4,944.0 | -1.43% |
| Aug 27, 2026 | $4.81 | $4.50 | $0.3099 | 7,094.0 | -2.79% |
| Aug 26, 2026 | $4.80 | $4.57 | $0.23 | 8,593.0 | -0.85% |
| Aug 25, 2026 | $4.94 | $4.61 | $0.3217 | 29,285.0 | -2.89% |
Clearsign Technologies Corp Stock (CLIR) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Clearsign Technologies Corp stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of CLIR shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Clearsign Technologies Corp stock price history provides a foundation for understanding how the company's stock has evolved over time.
Clearsign Technologies Corp Stock (CLIR) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Sep, 2026 | $4.72 | $3.50 | $1.22 | 357,508.0 | -11.97% |
| Aug, 2026 | $5.00 | $3.66 | $1.34 | 310,502.0 | +10.36% |
| Jul, 2026 | $4.27 | $3.16 | $1.11 | 270,367.0 | +5.18% |
| Jun, 2026 | $4.66 | $3.39 | $1.27 | 311,610.0 | -20.73% |
| May, 2026 | $5.56 | $4.18 | $1.38 | 428,611.0 | -7.40% |
| Apr, 2026 | $7.56 | $4.31 | $3.25 | 1,255,522.0 | +14.68% |
| Mar, 2026 | $6.43 | $3.24 | $3.19 | 490,441.0 | -22.38% |
| Feb, 2026 | $7.04 | $5.40 | $1.64 | 153,133.2 | -6.54% |
| Jan, 2026 | $8.10 | $5.50 | $2.60 | 312,069.0 | +8.07% |
Clearsign Technologies Corp Stock (CLIR) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $7.99 | $5.50 | $2.49 | 240,826.9 | -24.95% |
| Nov, 2025 | $9.80 | $6.81 | $2.99 | 219,588.6 | -14.85% |
| Oct, 2025 | $11.20 | $7.68 | $3.52 | 647,770.1 | +12.81% |
| Sep, 2025 | $9.50 | $4.60 | $4.90 | 4,251,148.9 | +31.99% |
| Aug, 2025 | $6.20 | $5.01 | $1.19 | 127,478.0 | +1.27% |
| Jul, 2025 | $6.50 | $4.90 | $1.60 | 175,540.8 | +3.05% |
| Jun, 2025 | $7.00 | $5.21 | $1.79 | 89,990.0 | -17.66% |
| May, 2025 | $7.75 | $5.30 | $2.45 | 133,343.7 | +14.75% |
| Apr, 2025 | $7.80 | $4.59 | $3.21 | 204,209.9 | -20.99% |
| Mar, 2025 | $8.99 | $6.74 | $2.25 | 114,679.2 | -1.16% |
| Feb, 2025 | $12.10 | $7.00 | $5.10 | 199,771.8 | -37.80% |
| Jan, 2025 | $16.00 | $10.50 | $5.50 | 272,824.3 | -15.28% |
Clearsign Technologies Corp Stock (CLIR) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $15.70 | $10.50 | $5.20 | 274,830.2 | +27.97% |
| Nov, 2024 | $12.80 | $8.20 | $4.60 | 433,814.2 | +36.81% |
| Oct, 2024 | $9.20 | $7.62 | $1.58 | 167,518.9 | +1.48% |
| Sep, 2024 | $9.00 | $6.80 | $2.20 | 89,039.6 | +13.34% |
| Aug, 2024 | $8.75 | $6.50 | $2.25 | 86,500.7 | -12.80% |
| Jul, 2024 | $9.75 | $7.89 | $1.86 | 134,588.8 | +3.08% |
| Jun, 2024 | $9.52 | $6.19 | $3.33 | 260,441.3 | +0.53% |
| May, 2024 | $9.60 | $7.30 | $2.30 | 122,504.2 | +5.04% |
| Apr, 2024 | $10.30 | $7.40 | $2.90 | 161,848.1 | -18.12% |
| Mar, 2024 | $13.16 | $9.00 | $4.16 | 101,908.2 | -24.61% |
| Feb, 2024 | $13.20 | $9.20 | $4.00 | 151,439.0 | +29.29% |
| Jan, 2024 | $12.50 | $9.50 | $3.00 | 123,394.0 | -10.81% |
4.20%
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