Koppers Inc. (KOP)
NYSE: KOP
· Real-Time Price · USD
26.96
0.02 (0.07%)
At close: Oct 03, 2025, 3:59 PM
27.00
0.15%
After-hours: Oct 03, 2025, 06:26 PM EDT
KOP Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 3, 2025 | 27.14 | 27.49 | 26.91 | 27.00 | 27.00 | 0.22% | 151,566 |
| Oct 2, 2025 | 27.79 | 28.07 | 26.91 | 26.94 | 26.94 | -3.44% | 137,842 |
| Oct 1, 2025 | 27.74 | 27.98 | 27.46 | 27.90 | 27.90 | -0.36% | 135,399 |
| Sep 30, 2025 | 27.57 | 28.22 | 27.39 | 28.00 | 28.00 | 0.90% | 123,800 |
| Sep 29, 2025 | 28.60 | 28.63 | 27.75 | 27.75 | 27.75 | -2.32% | 138,800 |
| Sep 26, 2025 | 28.15 | 28.68 | 28.15 | 28.41 | 28.41 | 0.92% | 121,925 |
| Sep 25, 2025 | 28.75 | 28.75 | 28.10 | 28.15 | 28.15 | -2.32% | 127,700 |
| Sep 24, 2025 | 28.81 | 28.95 | 28.64 | 28.82 | 28.82 | 0.24% | 114,600 |
| Sep 23, 2025 | 28.87 | 29.49 | 28.73 | 28.75 | 28.75 | -0.48% | 224,800 |
| Sep 22, 2025 | 28.83 | 29.02 | 28.57 | 28.89 | 28.89 | -0.38% | 227,100 |
| Sep 19, 2025 | 29.32 | 29.36 | 28.56 | 29.00 | 29.00 | -1.19% | 591,400 |
| Sep 18, 2025 | 29.22 | 29.55 | 28.86 | 29.35 | 29.35 | 1.28% | 222,003 |
| Sep 17, 2025 | 28.73 | 29.90 | 28.53 | 28.98 | 28.98 | 1.22% | 290,300 |
| Sep 16, 2025 | 28.67 | 29.16 | 28.43 | 28.63 | 28.63 | 0.00% | 132,842 |
| Sep 15, 2025 | 28.88 | 28.96 | 28.29 | 28.63 | 28.63 | -0.42% | 140,000 |
| Sep 12, 2025 | 28.65 | 28.98 | 28.14 | 28.75 | 28.75 | -0.52% | 177,708 |
| Sep 11, 2025 | 27.49 | 28.98 | 27.49 | 28.90 | 28.90 | 4.98% | 199,120 |
| Sep 10, 2025 | 28.65 | 28.82 | 27.38 | 27.53 | 27.53 | -4.04% | 137,900 |
| Sep 9, 2025 | 28.39 | 28.94 | 28.19 | 28.69 | 28.69 | 0.07% | 198,400 |
| Sep 8, 2025 | 28.91 | 28.94 | 28.35 | 28.67 | 28.67 | -0.69% | 170,843 |
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