Birchtech Corp. (BCHT)
NYSEAMERICAN: BCHT · Real-Time Price · USD
1.760
+0.110 (6.67%)
At close: Sep 18, 2026, 4:00 PM EDT
1.730
-0.030 (-1.70%)
After-hours: Sep 18, 2026, 8:00 PM EDT
Birchtech Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 18, 2026 | 1.62 | 1.77 | 1.55 | 1.76 | 1.76 | 6.67% | 110,046 |
| Sep 17, 2026 | 1.57 | 1.72 | 1.57 | 1.65 | 1.65 | 3.12% | 93,236 |
| Sep 16, 2026 | 1.58 | 1.63 | 1.51 | 1.60 | 1.60 | -1.23% | 133,766 |
| Sep 15, 2026 | 1.48 | 1.64 | 1.43 | 1.62 | 1.62 | 10.96% | 189,418 |
| Sep 14, 2026 | 1.36 | 1.48 | 1.36 | 1.46 | 1.46 | 5.80% | 70,824 |
| Sep 11, 2026 | 1.33 | 1.39 | 1.32 | 1.38 | 1.38 | 3.76% | 52,129 |
| Sep 10, 2026 | 1.39 | 1.42 | 1.30 | 1.33 | 1.33 | -0.75% | 95,977 |
| Sep 9, 2026 | 1.19 | 1.38 | 1.19 | 1.34 | 1.34 | 12.61% | 201,156 |
| Sep 8, 2026 | 1.20 | 1.24 | 1.17 | 1.19 | 1.19 | - | 45,846 |
| Sep 4, 2026 | 1.18 | 1.21 | 1.18 | 1.19 | 1.19 | 1.71% | 27,835 |
| Sep 3, 2026 | 1.18 | 1.20 | 1.14 | 1.17 | 1.17 | 0.86% | 61,937 |
| Sep 2, 2026 | 1.18 | 1.18 | 1.15 | 1.16 | 1.16 | -1.69% | 28,034 |
| Sep 1, 2026 | 1.18 | 1.21 | 1.15 | 1.18 | 1.18 | -1.67% | 78,791 |
| Aug 31, 2026 | 1.23 | 1.25 | 1.20 | 1.20 | 1.20 | 0.84% | 47,823 |
| Aug 28, 2026 | 1.24 | 1.29 | 1.19 | 1.19 | 1.19 | -4.03% | 83,833 |
| Aug 27, 2026 | 1.27 | 1.29 | 1.20 | 1.24 | 1.24 | -3.13% | 53,186 |
| Aug 26, 2026 | 1.30 | 1.30 | 1.26 | 1.28 | 1.28 | -1.54% | 7,305 |
| Aug 25, 2026 | 1.30 | 1.31 | 1.27 | 1.30 | 1.30 | 1.56% | 40,596 |
| Aug 24, 2026 | 1.30 | 1.31 | 1.28 | 1.28 | 1.28 | -5.19% | 17,585 |
| Aug 21, 2026 | 1.40 | 1.40 | 1.32 | 1.35 | 1.35 | -3.57% | 84,663 |
| Aug 20, 2026 | 1.40 | 1.42 | 1.36 | 1.40 | 1.40 | 1.45% | 47,235 |
| Aug 19, 2026 | 1.40 | 1.42 | 1.33 | 1.38 | 1.38 | -0.72% | 71,449 |
| Aug 18, 2026 | 1.34 | 1.45 | 1.32 | 1.39 | 1.39 | 6.92% | 122,978 |
| Aug 17, 2026 | 1.31 | 1.38 | 1.28 | 1.30 | 1.30 | 0.78% | 22,764 |
| Aug 14, 2026 | 1.41 | 1.44 | 1.28 | 1.29 | 1.29 | -10.42% | 178,486 |
| Aug 13, 2026 | 1.50 | 1.50 | 1.43 | 1.44 | 1.44 | -2.70% | 59,971 |
| Aug 12, 2026 | 1.38 | 1.49 | 1.33 | 1.48 | 1.48 | 8.03% | 180,424 |
| Aug 11, 2026 | 1.45 | 1.48 | 1.37 | 1.37 | 1.37 | -4.20% | 70,181 |
| Aug 10, 2026 | 1.38 | 1.44 | 1.36 | 1.43 | 1.43 | 2.88% | 35,791 |
| Aug 7, 2026 | 1.40 | 1.41 | 1.35 | 1.39 | 1.39 | - | 93,270 |
| Aug 6, 2026 | 1.37 | 1.39 | 1.36 | 1.39 | 1.39 | 0.72% | 75,529 |
| Aug 5, 2026 | 1.41 | 1.41 | 1.38 | 1.38 | 1.38 | 0.73% | 32,771 |
| Aug 4, 2026 | 1.45 | 1.53 | 1.36 | 1.37 | 1.37 | -2.84% | 76,684 |
| Aug 3, 2026 | 1.37 | 1.49 | 1.37 | 1.41 | 1.41 | 3.68% | 50,701 |
| Jul 31, 2026 | 1.42 | 1.48 | 1.36 | 1.36 | 1.36 | -1.45% | 66,710 |
| Jul 30, 2026 | 1.36 | 1.43 | 1.36 | 1.38 | 1.38 | - | 105,941 |
| Jul 29, 2026 | 1.40 | 1.44 | 1.37 | 1.38 | 1.38 | -1.43% | 31,826 |
| Jul 28, 2026 | 1.43 | 1.43 | 1.37 | 1.40 | 1.40 | -2.10% | 41,860 |
| Jul 27, 2026 | 1.45 | 1.55 | 1.38 | 1.43 | 1.43 | 2.14% | 23,961 |
| Jul 24, 2026 | 1.53 | 1.59 | 1.39 | 1.40 | 1.40 | -7.28% | 140,240 |
| Jul 23, 2026 | 1.58 | 1.59 | 1.42 | 1.51 | 1.51 | - | 79,137 |
| Jul 22, 2026 | 1.62 | 1.62 | 1.46 | 1.51 | 1.51 | -1.95% | 114,158 |
| Jul 21, 2026 | 1.72 | 1.74 | 1.54 | 1.54 | 1.54 | -8.33% | 142,393 |
| Jul 20, 2026 | 1.56 | 1.72 | 1.56 | 1.68 | 1.68 | 5.00% | 32,585 |
| Jul 17, 2026 | 1.70 | 1.71 | 1.59 | 1.60 | 1.60 | -6.43% | 49,648 |
| Jul 16, 2026 | 1.70 | 1.77 | 1.70 | 1.71 | 1.71 | - | 19,124 |
| Jul 15, 2026 | 1.81 | 1.89 | 1.70 | 1.71 | 1.71 | -8.56% | 120,688 |
| Jul 14, 2026 | 1.96 | 1.97 | 1.87 | 1.87 | 1.87 | -2.60% | 20,709 |
| Jul 13, 2026 | 1.96 | 2.12 | 1.92 | 1.92 | 1.92 | - | 37,307 |
| Jul 10, 2026 | 1.90 | 2.05 | 1.89 | 1.92 | 1.92 | -1.03% | 24,327 |