stockNYSE: KOP • 12 Months Updates

Koppers Holdings Inc. (KOP) 12 Months

Showing Closing Date Range from Oct 14, 2025 to Oct 14, 2026.

Koppers Holdings Inc. (KOP) is a publicly traded company operating within the Basic Materials sector.
Price & Performance Trajectory

Koppers Holdings Inc.NYSE: KOP

Latest Close
$43.67
+63.62%
12 Months Updates Trajectory
Showing Closing Date Range from Oct 14, 2025 to Oct 14, 2026.
Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesKOP session performance
✓ Latest Close USD
$43.67
Latest session close
+$16.98vs period start
Period Return % % GAIN
+63.62%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$53 / $25
Period range envelope
$28.00channel spread
Total Volume SHARES
44.83M
Period turnover
Avg: 177.9K/dLiquidity

Historical Session Ledger

Daily open, high, low, and close prices with volume and period returns.

Historical Quotes & Breakdown(252 dates)
DateClose (USD)Return %HighLowVolume
Oct 14, 2026$43.67-1.67% $43.92$43.12116.6K
Oct 13, 2026$44.41+3.04% $44.43$42.69144.4K
Oct 12, 2026$43.10-0.71% $43.60$42.92115.1K
Oct 09, 2026$43.41-1.88% $44.22$42.88134.1K
Oct 08, 2026$44.24+0.82% $45.06$43.71164.8K
Oct 07, 2026$43.88-4.67% $45.54$43.75140.1K
Oct 06, 2026$46.03-2.15% $47.45$45.97141.4K
Oct 05, 2026$47.04+2.17% $47.79$45.51282.1K
Oct 02, 2026$46.04+1.88% $46.39$45.31159.0K
Oct 01, 2026$45.19-0.88% $45.46$44.33196.7K
Sep 30, 2026$45.59-1.06% $46.34$45.46150.7K
Sep 29, 2026$46.08-0.19% $46.44$45.52104.0K
Sep 28, 2026$46.17-0.22% $46.98$45.95102.6K
Sep 25, 2026$46.27+0.67% $46.51$45.5198.8K
Sep 24, 2026$45.96-0.65% $46.45$45.55108.1K
Page 1 of 17