ClearSign Technologies Corporation (CLIR)
NASDAQ: CLIR · Real-Time Price · USD
4.840
+0.361 (8.06%)
At close: Aug 24, 2026, 4:00 PM EDT
4.600
-0.240 (-4.96%)
Pre-market: Aug 25, 2026, 4:05 AM EDT
ClearSign Technologies Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | 4.43 | 4.89 | 4.35 | 4.84 | 4.84 | 8.07% | 30,211 |
| Aug 21, 2026 | 4.20 | 4.56 | 4.09 | 4.48 | 4.48 | -4.40% | 23,065 |
| Aug 20, 2026 | 4.53 | 4.96 | 3.86 | 4.69 | 4.69 | 6.48% | 31,788 |
| Aug 19, 2026 | 4.71 | 4.77 | 4.29 | 4.40 | 4.40 | -5.78% | 22,479 |
| Aug 18, 2026 | 4.69 | 4.85 | 4.40 | 4.67 | 4.67 | 2.41% | 13,284 |
| Aug 17, 2026 | 4.67 | 5.00 | 4.31 | 4.56 | 4.56 | -1.94% | 20,924 |
| Aug 14, 2026 | 4.10 | 4.70 | 4.10 | 4.65 | 4.65 | 9.41% | 26,431 |
| Aug 13, 2026 | 4.11 | 4.25 | 4.11 | 4.25 | 4.25 | 2.80% | 3,541 |
| Aug 12, 2026 | 4.06 | 4.20 | 4.06 | 4.13 | 4.13 | -0.86% | 2,695 |
| Aug 11, 2026 | 3.95 | 4.17 | 3.86 | 4.17 | 4.17 | 6.79% | 25,845 |
| Aug 10, 2026 | 3.81 | 3.95 | 3.66 | 3.91 | 3.91 | 4.13% | 15,469 |
| Aug 7, 2026 | 3.79 | 3.79 | 3.75 | 3.75 | 3.75 | -2.34% | 3,548 |
| Aug 6, 2026 | 3.88 | 3.91 | 3.73 | 3.84 | 3.84 | -1.29% | 9,954 |
| Aug 5, 2026 | 3.98 | 4.11 | 3.83 | 3.89 | 3.89 | -2.75% | 4,527 |
| Aug 4, 2026 | 3.96 | 4.03 | 3.96 | 4.00 | 4.00 | 1.01% | 2,990 |
| Aug 3, 2026 | 3.87 | 4.33 | 3.86 | 3.96 | 3.96 | 2.59% | 18,322 |
| Jul 31, 2026 | 3.88 | 3.96 | 3.85 | 3.86 | 3.86 | -1.03% | 1,207 |
| Jul 30, 2026 | 3.80 | 3.97 | 3.80 | 3.90 | 3.90 | -2.89% | 2,665 |
| Jul 29, 2026 | 3.91 | 4.04 | 3.85 | 4.02 | 4.02 | -0.60% | 2,108 |
| Jul 28, 2026 | 3.89 | 4.04 | 3.80 | 4.04 | 4.04 | 1.51% | 7,554 |
| Jul 27, 2026 | 3.74 | 4.00 | 3.74 | 3.98 | 3.98 | 14.04% | 18,333 |
| Jul 24, 2026 | 3.34 | 3.49 | 3.34 | 3.49 | 3.49 | 4.18% | 2,955 |
| Jul 23, 2026 | 3.20 | 3.72 | 3.20 | 3.35 | 3.35 | 3.08% | 62,349 |
| Jul 22, 2026 | 3.35 | 3.40 | 3.16 | 3.25 | 3.25 | -2.99% | 7,379 |
| Jul 21, 2026 | 3.40 | 3.43 | 3.35 | 3.35 | 3.35 | -0.59% | 3,390 |
| Jul 20, 2026 | 3.55 | 3.55 | 3.32 | 3.37 | 3.37 | -6.91% | 13,564 |
| Jul 17, 2026 | 3.65 | 3.66 | 3.52 | 3.62 | 3.62 | -0.55% | 3,845 |
| Jul 16, 2026 | 3.64 | 3.69 | 3.64 | 3.64 | 3.64 | -2.15% | 2,801 |
| Jul 15, 2026 | 3.60 | 3.72 | 3.60 | 3.72 | 3.72 | 0.27% | 3,576 |
| Jul 14, 2026 | 3.68 | 3.87 | 3.68 | 3.71 | 3.71 | 2.49% | 10,555 |
| Jul 13, 2026 | 3.71 | 3.79 | 3.61 | 3.62 | 3.62 | -2.69% | 16,728 |
| Jul 10, 2026 | 3.75 | 3.75 | 3.66 | 3.72 | 3.72 | -0.80% | 6,200 |
| Jul 9, 2026 | 3.72 | 3.80 | 3.70 | 3.75 | 3.75 | 1.35% | 5,992 |
| Jul 8, 2026 | 3.91 | 3.91 | 3.61 | 3.70 | 3.70 | -3.65% | 5,954 |
| Jul 7, 2026 | 4.08 | 4.14 | 3.82 | 3.84 | 3.84 | -6.34% | 12,953 |
| Jul 6, 2026 | 4.03 | 4.10 | 3.95 | 4.10 | 4.10 | 0.99% | 10,056 |
| Jul 2, 2026 | 4.08 | 4.24 | 4.06 | 4.06 | 4.06 | -1.46% | 9,536 |
| Jul 1, 2026 | 3.79 | 4.27 | 3.76 | 4.12 | 4.12 | 12.26% | 34,140 |
| Jun 30, 2026 | 3.61 | 3.88 | 3.58 | 3.67 | 3.67 | 0.82% | 17,466 |
| Jun 29, 2026 | 3.55 | 3.69 | 3.50 | 3.64 | 3.64 | 0.55% | 6,329 |
| Jun 26, 2026 | 3.40 | 3.70 | 3.39 | 3.62 | 3.62 | 6.78% | 14,654 |
| Jun 25, 2026 | 3.54 | 3.63 | 3.39 | 3.39 | 3.39 | -3.70% | 14,408 |
| Jun 24, 2026 | 3.69 | 3.86 | 3.52 | 3.52 | 3.52 | -5.12% | 5,172 |
| Jun 23, 2026 | 3.67 | 3.77 | 3.59 | 3.71 | 3.71 | -0.27% | 4,891 |
| Jun 22, 2026 | 3.89 | 3.94 | 3.62 | 3.72 | 3.72 | -1.85% | 19,041 |
| Jun 18, 2026 | 4.10 | 4.10 | 3.71 | 3.79 | 3.79 | -6.42% | 34,033 |
| Jun 17, 2026 | 4.14 | 4.14 | 4.02 | 4.05 | 4.05 | -1.70% | 13,974 |
| Jun 16, 2026 | 4.33 | 4.33 | 4.07 | 4.12 | 4.12 | -0.36% | 25,775 |
| Jun 15, 2026 | 4.28 | 4.28 | 4.08 | 4.14 | 4.14 | 1.35% | 12,568 |
| Jun 12, 2026 | 4.18 | 4.29 | 4.08 | 4.08 | 4.08 | -2.16% | 10,994 |