NYSE:KOP | Stock Price History | Koppers Holdings Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2006-02-01 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$9.63$14.60$22.12$33.53$50.81$77.002006-02-012026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$46.505,792
2026-09-03$46.737,326
2026-09-02$45.928,800
2026-09-01$45.499,428
2026-08-31$46.863,710
2026-08-28$46.644,808
2026-08-27$46.32$61.90112,900$45.714,301
2026-08-26$46.34$61.92149,200$46.055,161
2026-08-25$46.13$61.64108,700$45.662,655
2026-08-24$45.83$61.24145,700$45.546,018
2026-08-21$45.19$60.39313,700$45.646,866
2026-08-20$45.88$61.31194,300$45.495,976
2026-08-19$44.90$60.00157,300$45.815,411
2026-08-18$45.44$60.72162,800$47.413,857
2026-08-17$47.45$63.41167,500$46.818,068
2026-08-14$47.14$62.99220,400$46.1710,869
2026-08-13$46.22$61.76259,100$45.408,745
2026-08-12$45.34$60.59344,600$47.059,907
2026-08-11$46.01$61.48301,000$49.557,994
2026-08-10$50.54$67.54200,400$50.799,231
2026-08-07$51.24$68.47478,700$50.7516,242
2026-08-06$52.33$69.93251,500$50.6012,481
2026-08-05$51.03$68.19156,000$51.684,139
2026-08-04$51.99$69.47175,900$50.744,535
2026-08-03$50.73$67.79144,800$49.543,846
2026-07-31$49.02$65.51145,900$47.934,588
2026-07-30$48.98$65.45135,200$49.955,047
2026-07-29$49.21$65.76135,200$50.436,064
2026-07-28$50.20$67.08112,000$49.992,304
2026-07-27$49.61$66.29117,300$50.027,289
2026-07-24$50.22$67.11148,200$50.153,040
2026-07-23$49.96$66.76180,400$50.9411,080
2026-07-22$51.17$68.38100,300$52.012,142
2026-07-21$51.47$68.78163,400$49.569,593
2026-07-20$49.20$65.75205,400$48.688,901
2026-07-17$49.14$65.67217,000
2026-07-16$49.05$65.55222,300
2026-07-15$48.47$64.77145,100
2026-07-14$48.53$64.8578,500
2026-07-13$47.77$63.84116,300
2026-07-10$47.56$63.55115,600
2026-07-09$46.59$62.26159,600
2026-07-08$47.40$63.34144,500
2026-07-07$46.76$62.49202,900
2026-07-06$47.10$62.94149,800
2026-07-02$46.21$61.75255,700
2026-07-01$44.56$59.55126,300
2026-06-30$44.90$60.00123,200
2026-06-29$45.36$60.61157,800
2026-06-26$45.12$60.29322,200
2026-06-25$44.70$59.73154,800
2026-06-24$43.88$58.64157,400
2026-06-23$42.90$57.33136,000
2026-06-22$44.42$59.36291,800
2026-06-18$43.73$58.44385,900
2026-06-17$43.65$58.33153,400
2026-06-16$44.50$59.47183,900
2026-06-15$44.40$59.33183,900
2026-06-12$43.41$58.01160,800
2026-06-11$41.52$55.48110,500
2026-06-10$41.68$55.70167,200
2026-06-09$41.86$55.94145,700
2026-06-08$41.22$55.08178,100
2026-06-05$40.81$54.53167,200
2026-06-04$42.16$56.34272,200
2026-06-03$43.09$57.58230,100
2026-06-02$42.48$56.77124,500
2026-06-01$41.19$55.04115,000
2026-05-29$40.80$54.52228,400
2026-05-28$41.29$55.06107,900
2026-05-27$42.73$56.98141,900
2026-05-26$41.54$55.39174,100
2026-05-22$40.36$53.82120,100
2026-05-21$39.63$52.84150,800
2026-05-20$39.20$52.27160,700
2026-05-19$38.31$51.08223,600
2026-05-18$40.39$53.86204,400
2026-05-15$40.68$54.24233,700
2026-05-14$42.41$56.55367,500
2026-05-13$42.69$56.92294,100
2026-05-12$43.55$58.07328,900
2026-05-11$43.08$57.44253,100
2026-05-08$43.99$58.66334,000
2026-05-07$41.16$54.88176,900
2026-05-06$41.61$55.48102,800
2026-05-05$41.35$55.14121,000
2026-05-04$39.84$53.12148,500
2026-05-01$41.91$55.88145,900
2026-04-30$40.83$54.44109,600
2026-04-29$39.80$53.07166,500
2026-04-28$41.46$55.28193,700
2026-04-27$41.35$55.14153,500
2026-04-24$40.28$53.71169,000
2026-04-23$38.65$51.54129,000
2026-04-22$38.01$50.6883,200
2026-04-21$37.52$50.03150,300
2026-04-20$37.44$49.9271,700
2026-04-17$37.69$50.26161,800
2026-04-16$36.98$49.31125,400
2026-04-15$37.54$50.06102,100