Koppers Inc.

NYSE: KOP · Real-Time Price · USD
29.80
0.18 (0.61%)
At close: Aug 19, 2025, 3:59 PM
29.26
-1.83%
After-hours: Aug 19, 2025, 05:41 PM EDT

KOP Stock Price History

Historical Data

Date Open High Low Close Adj Close % Change Volume
Aug 18, 2025 29.54 29.90 29.46 29.62 29.62 0.03% 160,388
Aug 15, 2025 30.81 30.89 29.52 29.61 29.61 -3.36% 223,009
Aug 14, 2025 30.44 31.01 30.43 30.64 30.64 -1.35% 168,414
Aug 13, 2025 30.00 31.18 30.00 31.06 31.06 4.76% 169,137
Aug 12, 2025 28.93 30.40 28.50 29.65 29.65 4.59% 265,600
Aug 11, 2025 28.74 29.04 26.82 28.35 28.35 -1.70% 308,100
Aug 8, 2025 28.76 29.57 26.79 28.84 28.84 -13.32% 405,339
Aug 7, 2025 32.95 33.46 32.72 33.27 33.27 2.56% 96,893
Aug 6, 2025 32.49 32.60 32.24 32.44 32.44 -0.55% 79,040
Aug 5, 2025 31.91 32.75 31.91 32.62 32.62 2.42% 102,931
Aug 4, 2025 31.99 32.36 31.73 31.85 31.85 -0.13% 87,500
Aug 1, 2025 32.49 32.49 31.41 31.89 31.89 -2.95% 116,700
Jul 31, 2025 32.67 33.12 32.51 32.86 32.86 -0.73% 121,500
Jul 30, 2025 33.76 33.76 32.83 33.10 33.10 -2.13% 114,000
Jul 29, 2025 34.18 34.18 33.69 33.82 33.82 -0.68% 99,800
Jul 28, 2025 34.50 34.70 33.84 34.05 34.05 -1.56% 94,700
Jul 25, 2025 33.43 34.65 33.40 34.59 34.59 3.28% 100,800
Jul 24, 2025 33.84 34.08 33.28 33.49 33.49 -2.33% 116,100
Jul 23, 2025 33.60 34.31 33.32 34.29 34.29 3.91% 110,300
Jul 22, 2025 32.41 33.19 32.33 33.00 33.00 2.42% 180,800