Koppers Inc. (KOP)
NYSE: KOP
· Real-Time Price · USD
26.45
-0.24 (-0.90%)
At close: Oct 15, 2025, 3:59 PM
26.43
-0.08%
After-hours: Oct 15, 2025, 06:22 PM EDT
KOP Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 14, 2025 | 26.38 | 26.99 | 26.38 | 26.69 | 26.69 | -0.19% | 94,646 |
| Oct 13, 2025 | 26.74 | 26.94 | 26.55 | 26.74 | 26.74 | 1.48% | 146,700 |
| Oct 10, 2025 | 26.54 | 26.84 | 26.16 | 26.35 | 26.35 | -0.57% | 181,320 |
| Oct 9, 2025 | 26.60 | 26.79 | 26.34 | 26.50 | 26.50 | -0.34% | 191,000 |
| Oct 8, 2025 | 26.64 | 26.65 | 26.30 | 26.59 | 26.59 | 0.45% | 114,814 |
| Oct 7, 2025 | 26.75 | 27.13 | 26.37 | 26.47 | 26.47 | -1.01% | 153,100 |
| Oct 6, 2025 | 27.14 | 27.14 | 26.22 | 26.74 | 26.74 | -0.96% | 175,209 |
| Oct 3, 2025 | 27.14 | 27.49 | 26.91 | 27.00 | 27.00 | 0.22% | 157,808 |
| 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 |
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