ClearSign Technologies Corporation (CLIR)
NASDAQ: CLIR · Real-Time Price · USD
3.740
+0.020 (0.54%)
At close: Mar 27, 2026, 4:00 PM EDT
3.690
-0.050 (-1.34%)
After-hours: Mar 27, 2026, 6:01 PM EDT
ClearSign Technologies Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 27, 2026 | 3.71 | 3.76 | 3.24 | 3.74 | 3.74 | 0.54% | 9,761 |
| Mar 26, 2026 | 3.50 | 4.06 | 3.50 | 3.72 | 3.72 | 4.20% | 18,892 |
| Mar 25, 2026 | 3.65 | 3.73 | 3.57 | 3.57 | 3.57 | 1.13% | 7,075 |
| Mar 24, 2026 | 3.53 | 3.71 | 3.53 | 3.53 | 3.53 | -1.94% | 8,046 |
| Mar 23, 2026 | 3.78 | 3.84 | 3.52 | 3.60 | 3.60 | 4.05% | 14,689 |
| Mar 20, 2026 | 3.63 | 3.96 | 3.37 | 3.46 | 3.46 | -4.16% | 31,795 |
| Mar 19, 2026 | 3.66 | 3.83 | 3.56 | 3.61 | 3.61 | -3.22% | 16,519 |
| Mar 18, 2026 | 4.00 | 4.03 | 3.67 | 3.73 | 3.73 | -7.67% | 27,670 |
| Mar 17, 2026 | 4.26 | 4.34 | 4.01 | 4.04 | 4.04 | -7.23% | 25,813 |
| Mar 16, 2026 | 4.62 | 4.75 | 4.26 | 4.36 | 4.36 | 0.62% | 24,720 |
| Mar 13, 2026 | 4.22 | 4.40 | 3.90 | 4.33 | 4.33 | -1.64% | 32,167 |
| Mar 12, 2026 | 4.80 | 5.00 | 4.38 | 4.40 | 4.40 | -1.65% | 32,565 |
| Mar 11, 2026 | 5.05 | 5.10 | 4.39 | 4.47 | 4.47 | -21.65% | 62,155 |
| Mar 10, 2026 | 5.36 | 6.43 | 5.36 | 5.71 | 5.71 | 6.51% | 63,670 |
| Mar 9, 2026 | 5.62 | 5.62 | 5.25 | 5.36 | 5.36 | 0.11% | 6,301 |
| Mar 6, 2026 | 5.20 | 5.80 | 5.20 | 5.36 | 5.36 | 2.78% | 19,349 |
| Mar 5, 2026 | 5.22 | 5.38 | 5.15 | 5.21 | 5.21 | -3.52% | 9,275 |
| Mar 4, 2026 | 5.50 | 5.50 | 5.11 | 5.40 | 5.40 | -1.66% | 18,931 |
| Mar 3, 2026 | 5.40 | 5.60 | 5.40 | 5.49 | 5.49 | -2.24% | 2,527 |
| Mar 2, 2026 | 5.69 | 5.79 | 5.60 | 5.62 | 5.62 | - | 5,860 |
| Feb 27, 2026 | 5.40 | 5.70 | 5.40 | 5.62 | 5.62 | 0.02% | 4,398 |
| Feb 26, 2026 | 5.52 | 5.81 | 5.52 | 5.62 | 5.62 | -3.11% | 6,725 |
| Feb 25, 2026 | 5.74 | 5.89 | 5.60 | 5.80 | 5.80 | -1.34% | 6,785 |
| Feb 24, 2026 | 5.95 | 6.10 | 5.50 | 5.88 | 5.88 | 0.26% | 7,694 |
| Feb 23, 2026 | 5.95 | 6.03 | 5.83 | 5.86 | 5.86 | -1.50% | 4,687 |
| Feb 20, 2026 | 6.24 | 6.39 | 5.92 | 5.95 | 5.95 | -3.28% | 3,723 |
| Feb 19, 2026 | 6.19 | 6.36 | 6.07 | 6.15 | 6.15 | 1.40% | 7,342 |
| Feb 18, 2026 | 6.20 | 6.45 | 5.97 | 6.07 | 6.07 | -3.41% | 4,254 |
| Feb 17, 2026 | 6.10 | 6.28 | 5.93 | 6.28 | 6.28 | 2.28% | 2,223 |
| Feb 13, 2026 | 5.99 | 6.33 | 5.93 | 6.14 | 6.14 | 0.66% | 12,371 |
| Feb 12, 2026 | 5.93 | 6.10 | 5.60 | 6.10 | 6.10 | 4.99% | 8,168 |
| Feb 11, 2026 | 6.11 | 6.27 | 5.80 | 5.81 | 5.81 | -5.27% | 8,435 |
| Feb 10, 2026 | 6.50 | 6.50 | 6.11 | 6.13 | 6.13 | -6.93% | 6,614 |
| Feb 9, 2026 | 6.20 | 7.04 | 5.90 | 6.59 | 6.59 | 13.68% | 24,756 |
| Feb 6, 2026 | 5.80 | 5.91 | 5.50 | 5.80 | 5.80 | 2.06% | 5,429 |
| Feb 5, 2026 | 5.71 | 5.88 | 5.57 | 5.68 | 5.68 | -3.24% | 8,671 |
| Feb 4, 2026 | 5.95 | 6.07 | 5.70 | 5.87 | 5.87 | -4.05% | 8,270 |
| Feb 3, 2026 | 5.75 | 6.21 | 5.63 | 6.12 | 6.12 | 2.12% | 6,859 |
| Feb 2, 2026 | 5.88 | 6.49 | 5.40 | 5.99 | 5.99 | -0.32% | 16,104 |
| Jan 30, 2026 | 6.10 | 6.48 | 6.01 | 6.01 | 6.01 | -0.41% | 130,617 |
| Jan 29, 2026 | 6.40 | 6.48 | 5.82 | 6.04 | 6.04 | -1.89% | 11,863 |
| Jan 28, 2026 | 6.52 | 6.88 | 6.11 | 6.15 | 6.15 | -8.33% | 13,556 |
| Jan 27, 2026 | 6.90 | 7.20 | 6.65 | 6.71 | 6.71 | -4.28% | 14,631 |
| Jan 26, 2026 | 7.20 | 7.20 | 6.96 | 7.01 | 7.01 | 0.72% | 5,392 |
| Jan 23, 2026 | 7.22 | 7.50 | 6.96 | 6.96 | 6.96 | -3.09% | 3,179 |
| Jan 22, 2026 | 6.80 | 7.50 | 6.71 | 7.18 | 7.18 | 5.22% | 23,798 |
| Jan 21, 2026 | 7.50 | 7.75 | 6.32 | 6.83 | 6.83 | -9.01% | 22,653 |
| Jan 20, 2026 | 7.80 | 7.95 | 7.50 | 7.50 | 7.50 | -1.37% | 7,355 |
| Jan 16, 2026 | 7.90 | 8.05 | 7.55 | 7.61 | 7.61 | -3.72% | 9,372 |
| Jan 15, 2026 | 7.52 | 8.05 | 7.52 | 7.90 | 7.90 | 4.91% | 24,911 |