ClearSign Technologies Corporation (CLIR) NASDAQ
Currency In USD
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Currency In USD
If you invested $1000 in ClearSign Technologies Corporation (CLIR) 10 years ago, it would be worth $72.79 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $174.89, while $1000 invested 1 year ago would be worth $741.28. This corresponds to total returns of -92.72%, -82.51%, -25.87%, respectively, with annualized returns of -23.04%, -29.45%, -25.87%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| September 10, 2026 | 4.16 | 4.04 | 4.04 | 4.23 | 3.9 | 49,859 |
| September 09, 2026 | 4.41 | 4.22 | 4.22 | 4.41 | 4.22 | 3,319 |
| September 08, 2026 | 4 | 4.31 | 4.31 | 4.72 | 4 | 19,514 |
| September 04, 2026 | 3.98 | 3.91 | 3.91 | 4.14 | 3.9 | 9,241 |
| September 03, 2026 | 4.27 | 4.1 | 4.1 | 4.32 | 3.95 | 42,098 |
| September 02, 2026 | 4.22 | 4.25 | 4.25 | 4.45 | 4.1 | 10,714 |
| September 01, 2026 | 4.2 | 4.15 | 4.15 | 4.2 | 4.15 | 1,606 |
| August 31, 2026 | 4.22 | 4.26 | 4.26 | 4.36 | 4.2 | 4,877 |
| August 28, 2026 | 4.58 | 4.47 | 4.47 | 4.75 | 4.47 | 4,944 |
| August 27, 2026 | 4.61 | 4.53 | 4.53 | 4.81 | 4.5 | 7,094 |
| August 26, 2026 | 4.67 | 4.66 | 4.66 | 4.8 | 4.57 | 8,593 |
| August 25, 2026 | 4.88 | 4.7 | 4.7 | 4.94 | 4.61 | 29,247 |
| August 24, 2026 | 4.43 | 4.84 | 4.84 | 4.89 | 4.35 | 30,263 |
| August 21, 2026 | 4.2 | 4.48 | 4.48 | 4.56 | 4.09 | 23,065 |
| August 20, 2026 | 4.53 | 4.68 | 4.68 | 4.96 | 3.86 | 31,788 |
| August 19, 2026 | 4.71 | 4.4 | 4.4 | 4.77 | 4.29 | 22,540 |
| August 18, 2026 | 4.69 | 4.67 | 4.67 | 4.84 | 4.4 | 13,784 |
| August 17, 2026 | 4.67 | 4.56 | 4.56 | 5 | 4.31 | 20,924 |
| August 14, 2026 | 4.1 | 4.65 | 4.65 | 4.7 | 4.1 | 26,431 |
| August 13, 2026 | 4.11 | 4.25 | 4.25 | 4.25 | 4.11 | 3,179 |
| August 12, 2026 | 4.06 | 4.13 | 4.13 | 4.2 | 4.06 | 2,510 |
| August 11, 2026 | 4.17 | 4.17 | 4.17 | 4.17 | 3.86 | 25,834 |
| August 10, 2026 | 3.81 | 3.91 | 3.91 | 3.95 | 3.66 | 15,469 |
| August 07, 2026 | 3.79 | 3.75 | 3.75 | 3.79 | 3.75 | 3,423 |
| August 06, 2026 | 3.88 | 3.84 | 3.84 | 3.91 | 3.73 | 9,954 |
| August 05, 2026 | 3.98 | 3.89 | 3.89 | 4.11 | 3.83 | 4,527 |
| August 04, 2026 | 3.96 | 4 | 4 | 4.03 | 3.96 | 2,990 |
| August 03, 2026 | 3.87 | 3.96 | 3.96 | 4.33 | 3.86 | 18,322 |
| July 31, 2026 | 3.88 | 3.86 | 3.86 | 3.96 | 3.85 | 1,207 |
| July 30, 2026 | 3.8 | 3.9 | 3.9 | 3.97 | 3.8 | 2,665 |
| July 29, 2026 | 3.91 | 4.02 | 4.02 | 4.04 | 3.85 | 2,758 |
| July 28, 2026 | 3.89 | 4.04 | 4.04 | 4.04 | 3.8 | 7,554 |
| July 27, 2026 | 3.74 | 3.98 | 3.98 | 4 | 3.74 | 18,355 |
| July 23, 2026 | 3.2 | 3.35 | 3.35 | 3.72 | 3.2 | 62,349 |
| July 22, 2026 | 3.35 | 3.25 | 3.25 | 3.4 | 3.16 | 7,379 |
| July 21, 2026 | 3.4 | 3.35 | 3.35 | 3.43 | 3.35 | 3,302 |
| July 20, 2026 | 3.55 | 3.37 | 3.37 | 3.55 | 3.32 | 13,564 |
| July 17, 2026 | 3.65 | 3.62 | 3.62 | 3.66 | 3.52 | 3,845 |
| July 16, 2026 | 3.64 | 3.64 | 3.64 | 3.69 | 3.64 | 2,811 |
| July 15, 2026 | 3.6 | 3.72 | 3.72 | 3.72 | 3.6 | 3,543 |
| July 14, 2026 | 3.68 | 3.71 | 3.71 | 3.87 | 3.68 | 10,555 |
| July 13, 2026 | 3.71 | 3.62 | 3.62 | 3.79 | 3.61 | 16,728 |
| July 10, 2026 | 3.75 | 3.72 | 3.72 | 3.75 | 3.66 | 6,200 |
| July 09, 2026 | 3.72 | 3.75 | 3.75 | 3.8 | 3.7 | 5,992 |
| July 08, 2026 | 3.91 | 3.7 | 3.7 | 3.91 | 3.61 | 5,848 |
| July 07, 2026 | 4.08 | 3.84 | 3.84 | 4.14 | 3.82 | 12,953 |
| July 06, 2026 | 4.04 | 4.1 | 4.1 | 4.1 | 3.95 | 9,978 |
| July 02, 2026 | 4.08 | 4.06 | 4.06 | 4.24 | 4.06 | 9,488 |
| July 01, 2026 | 3.79 | 4.12 | 4.12 | 4.27 | 3.76 | 34,140 |
| June 30, 2026 | 3.8 | 3.67 | 3.67 | 3.88 | 3.63 | 17,455 |
| June 29, 2026 | 3.65 | 3.64 | 3.64 | 3.77 | 3.59 | 6,291 |
| June 26, 2026 | 3.4 | 3.62 | 3.62 | 3.7 | 3.39 | 14,654 |
| June 25, 2026 | 3.54 | 3.52 | 3.52 | 3.63 | 3.39 | 13,231 |
| June 24, 2026 | 3.7 | 3.52 | 3.52 | 3.86 | 3.52 | 5,082 |
| June 23, 2026 | 3.67 | 3.71 | 3.71 | 3.77 | 3.59 | 4,871 |
| June 22, 2026 | 3.89 | 3.72 | 3.72 | 3.94 | 3.62 | 19,041 |
| June 18, 2026 | 4.1 | 3.79 | 3.79 | 4.1 | 3.71 | 34,006 |
| June 17, 2026 | 4.14 | 4.05 | 4.05 | 4.14 | 4.02 | 13,974 |
| June 16, 2026 | 4.33 | 4.12 | 4.12 | 4.33 | 4.07 | 25,761 |
| June 15, 2026 | 4.28 | 4.14 | 4.14 | 4.28 | 4.08 | 12,548 |