ClearSign Technologies Corporation (CLIR)
NASDAQ: CLIR · Real-Time Price · USD
1.060
+0.202 (23.53%)
At close: Oct 6, 2025, 4:00 PM EDT
1.090
+0.030 (2.83%)
After-hours: Oct 6, 2025, 7:23 PM EDT
ClearSign Technologies Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 6, 2025 | 0.90 | 1.12 | 0.88 | 1.06 | 1.06 | 23.53% | 1,354,399 |
| Oct 3, 2025 | 0.84 | 0.88 | 0.82 | 0.86 | 0.86 | 1.74% | 189,188 |
| Oct 2, 2025 | 0.80 | 0.86 | 0.79 | 0.84 | 0.84 | 6.49% | 256,459 |
| Oct 1, 2025 | 0.77 | 0.81 | 0.77 | 0.79 | 0.79 | 2.70% | 67,135 |
| Sep 30, 2025 | 0.83 | 0.83 | 0.75 | 0.77 | 0.77 | -3.73% | 112,806 |
| Sep 29, 2025 | 0.86 | 0.87 | 0.78 | 0.80 | 0.80 | -0.62% | 297,659 |
| Sep 26, 2025 | 0.80 | 0.86 | 0.78 | 0.81 | 0.81 | 10.24% | 468,699 |
| Sep 25, 2025 | 0.77 | 0.78 | 0.71 | 0.73 | 0.73 | -3.54% | 154,411 |
| Sep 24, 2025 | 0.72 | 0.77 | 0.72 | 0.76 | 0.76 | 6.01% | 197,348 |
| Sep 23, 2025 | 0.80 | 0.89 | 0.64 | 0.72 | 0.72 | -14.65% | 951,540 |
| Sep 22, 2025 | 0.66 | 0.90 | 0.61 | 0.84 | 0.84 | 22.88% | 2,681,329 |
| Sep 19, 2025 | 0.51 | 0.95 | 0.51 | 0.68 | 0.68 | 36.26% | 36,197,285 |
| Sep 18, 2025 | 0.51 | 0.54 | 0.48 | 0.50 | 0.50 | -1.46% | 392,847 |
| Sep 17, 2025 | 0.50 | 0.53 | 0.48 | 0.51 | 0.51 | 0.83% | 180,329 |
| Sep 16, 2025 | 0.52 | 0.53 | 0.46 | 0.50 | 0.50 | -5.04% | 550,952 |
| Sep 15, 2025 | 0.56 | 0.57 | 0.53 | 0.53 | 0.53 | -1.83% | 161,133 |
| Sep 12, 2025 | 0.55 | 0.56 | 0.54 | 0.54 | 0.54 | -0.90% | 103,924 |
| Sep 11, 2025 | 0.56 | 0.58 | 0.54 | 0.55 | 0.55 | -3.88% | 88,023 |
| Sep 10, 2025 | 0.59 | 0.60 | 0.57 | 0.57 | 0.57 | -2.36% | 68,367 |
| Sep 9, 2025 | 0.57 | 0.60 | 0.57 | 0.58 | 0.58 | -0.77% | 43,356 |
| Sep 8, 2025 | 0.60 | 0.60 | 0.59 | 0.59 | 0.59 | -0.54% | 53,664 |
| Sep 5, 2025 | 0.60 | 0.60 | 0.58 | 0.59 | 0.59 | 1.26% | 40,814 |
| Sep 4, 2025 | 0.60 | 0.60 | 0.58 | 0.58 | 0.58 | -2.34% | 49,418 |
| Sep 3, 2025 | 0.59 | 0.60 | 0.58 | 0.60 | 0.60 | -0.78% | 36,167 |
| Sep 2, 2025 | 0.61 | 0.61 | 0.58 | 0.60 | 0.60 | 2.64% | 46,127 |
| Aug 29, 2025 | 0.59 | 0.60 | 0.58 | 0.58 | 0.58 | -1.50% | 16,744 |
| Aug 28, 2025 | 0.59 | 0.60 | 0.58 | 0.59 | 0.59 | 0.17% | 40,229 |
| Aug 27, 2025 | 0.58 | 0.60 | 0.58 | 0.59 | 0.59 | 2.10% | 35,861 |
| Aug 26, 2025 | 0.58 | 0.61 | 0.57 | 0.58 | 0.58 | -0.85% | 88,668 |
| Aug 25, 2025 | 0.61 | 0.61 | 0.57 | 0.59 | 0.59 | -0.85% | 81,597 |
| Aug 22, 2025 | 0.60 | 0.62 | 0.58 | 0.59 | 0.59 | 2.63% | 91,153 |
| Aug 21, 2025 | 0.58 | 0.58 | 0.55 | 0.57 | 0.57 | 5.91% | 101,807 |
| Aug 20, 2025 | 0.55 | 0.55 | 0.54 | 0.54 | 0.54 | -1.49% | 29,976 |
| Aug 19, 2025 | 0.55 | 0.55 | 0.52 | 0.55 | 0.55 | -1.61% | 43,735 |
| Aug 18, 2025 | 0.57 | 0.59 | 0.56 | 0.56 | 0.56 | -0.37% | 35,185 |
| Aug 15, 2025 | 0.60 | 0.60 | 0.56 | 0.56 | 0.56 | -8.32% | 79,414 |
| Aug 14, 2025 | 0.62 | 0.62 | 0.58 | 0.61 | 0.61 | 4.79% | 76,777 |
| Aug 13, 2025 | 0.55 | 0.59 | 0.55 | 0.59 | 0.59 | 10.38% | 62,302 |
| Aug 12, 2025 | 0.57 | 0.57 | 0.50 | 0.53 | 0.53 | -1.83% | 118,146 |
| Aug 11, 2025 | 0.55 | 0.57 | 0.53 | 0.54 | 0.54 | -3.59% | 80,055 |
| Aug 8, 2025 | 0.57 | 0.58 | 0.55 | 0.56 | 0.56 | -0.30% | 98,657 |
| Aug 7, 2025 | 0.56 | 0.59 | 0.54 | 0.56 | 0.56 | -3.12% | 58,916 |
| Aug 6, 2025 | 0.56 | 0.58 | 0.56 | 0.58 | 0.58 | 5.05% | 30,680 |
| Aug 5, 2025 | 0.57 | 0.57 | 0.54 | 0.55 | 0.55 | 0.90% | 60,071 |
| Aug 4, 2025 | 0.56 | 0.57 | 0.54 | 0.55 | 0.55 | 0.39% | 29,236 |
| Aug 1, 2025 | 0.57 | 0.58 | 0.54 | 0.55 | 0.55 | -5.55% | 45,097 |
| Jul 31, 2025 | 0.60 | 0.60 | 0.57 | 0.58 | 0.58 | 1.75% | 13,622 |
| Jul 30, 2025 | 0.60 | 0.63 | 0.57 | 0.57 | 0.57 | -4.71% | 65,041 |
| Jul 29, 2025 | 0.64 | 0.65 | 0.60 | 0.60 | 0.60 | -5.54% | 54,721 |
| Jul 28, 2025 | 0.61 | 0.65 | 0.61 | 0.63 | 0.63 | 5.78% | 204,371 |