NYSE:KOP | Historical Stock Price | 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.

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Historical Stock Price — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$26.07$26.91118,600
2006-12-28$25.41$26.2284,100
2006-12-27$25.15$25.96101,900
2006-12-26$24.38$25.1651,100
2006-12-22$23.32$24.07112,700
2006-12-21$24.11$24.88144,400
2006-12-20$23.70$24.4673,200
2006-12-19$23.21$23.9543,300
2006-12-18$22.86$23.5963,700
2006-12-15$23.23$23.97106,800
2006-12-14$23.20$23.9484,000
2006-12-13$23.30$24.0554,000
2006-12-12$22.85$23.5895,400
2006-12-11$23.29$24.0462,800
2006-12-08$22.51$23.2356,600
2006-12-07$23.00$23.7439,600
2006-12-06$23.26$24.0172,200
2006-12-05$23.12$23.8656,400
2006-12-04$22.91$23.64137,400
2006-12-01$22.30$23.01221,000
2006-11-30$22.84$23.57121,000
2006-11-29$23.35$24.10138,100
2006-11-28$22.27$22.98287,800
2006-11-27$23.10$23.6691,100
2006-11-24$23.00$23.5625,400
2006-11-22$23.41$23.9861,500
2006-11-21$23.49$24.06112,600
2006-11-20$23.09$23.65171,900
2006-11-17$22.28$22.8296,500
2006-11-16$22.28$22.82115,500
2006-11-15$22.43$22.98111,500
2006-11-14$22.40$22.95144,300
2006-11-13$21.90$22.4462,600
2006-11-10$21.94$22.4898,000
2006-11-09$21.25$21.77177,200
2006-11-08$21.75$22.28162,900
2006-11-07$21.06$21.57142,100
2006-11-06$21.15$21.67215,300
2006-11-03$20.41$20.9177,800
2006-11-02$19.45$19.93156,700
2006-11-01$19.58$20.0677,500
2006-10-31$20.61$21.11107,100
2006-10-30$20.75$21.2652,700
2006-10-27$20.25$20.7491,400
2006-10-26$20.38$20.8848,700
2006-10-25$20.20$20.6956,100
2006-10-24$20.25$20.7426,000
2006-10-23$20.39$20.8984,700
2006-10-20$19.57$20.0548,100
2006-10-19$19.91$20.4047,900
2006-10-18$19.25$19.7258,300
2006-10-17$20.00$20.4958,200
2006-10-16$19.92$20.4178,300
2006-10-13$19.50$19.98132,000
2006-10-12$18.98$19.4460,300
2006-10-11$17.99$18.4357,700
2006-10-10$18.88$19.3433,500
2006-10-09$18.67$19.1329,100
2006-10-06$18.40$18.8528,700
2006-10-05$18.40$18.8535,500
2006-10-04$18.54$18.9951,900
2006-10-03$18.00$18.4427,300
2006-10-02$18.05$18.4964,300
2006-09-29$18.97$19.4374,600
2006-09-28$18.93$19.3947,900
2006-09-27$18.97$19.4354,200
2006-09-26$18.87$19.33106,100
2006-09-25$19.11$19.58160,200
2006-09-22$18.13$18.5778,200
2006-09-21$18.01$18.4576,400
2006-09-20$18.10$18.5498,100
2006-09-19$18.09$18.53126,600
2006-09-18$17.55$17.9854,500
2006-09-15$17.57$18.00134,500
2006-09-14$17.32$17.7469,400
2006-09-13$16.89$17.3048,400
2006-09-12$16.50$16.90101,100
2006-09-11$16.30$16.7090,900
2006-09-08$16.70$17.11110,700
2006-09-07$16.31$16.7175,800
2006-09-06$16.21$16.6149,300
2006-09-05$16.61$17.0295,500
2006-09-01$16.79$17.2081,700
2006-08-31$16.95$17.36137,300
2006-08-30$16.74$17.1543,500
2006-08-29$16.93$17.17140,500
2006-08-28$16.19$16.42198,400
2006-08-25$16.25$16.48105,700
2006-08-24$16.06$16.2999,400
2006-08-23$16.46$16.69107,300
2006-08-22$16.97$17.21100,500
2006-08-21$17.15$17.39355,700
2006-08-18$16.10$16.33183,100
2006-08-17$16.19$16.42126,100
2006-08-16$16.21$16.4470,300
2006-08-15$15.65$15.87121,800
2006-08-14$15.89$16.1181,200
2006-08-11$16.50$16.7341,600
2006-08-10$16.79$17.0356,000
2006-08-09$17.25$17.4967,100
2006-08-08$17.50$17.7547,300
2006-08-07$17.78$18.03112,000
2006-08-04$18.00$18.25372,700
2006-08-03$19.49$19.7786,700
2006-08-02$19.30$19.57116,800
2006-08-01$18.60$18.8676,700
2006-07-31$19.17$19.4467,900
2006-07-28$18.95$19.2244,100
2006-07-27$18.14$18.40113,000
2006-07-26$18.67$18.93229,400
2006-07-25$20.05$20.33104,200
2006-07-24$19.55$19.8368,400
2006-07-21$19.01$19.2852,800
2006-07-20$19.25$19.5265,300
2006-07-19$20.60$20.89172,900
2006-07-18$19.75$20.03106,800
2006-07-17$19.30$19.5763,500
2006-07-14$19.25$19.52114,100
2006-07-13$18.95$19.2293,300
2006-07-12$18.67$18.9339,200
2006-07-11$19.37$19.6446,000
2006-07-10$19.73$20.0169,200
2006-07-07$19.56$19.8439,800
2006-07-06$19.74$20.0299,900
2006-07-05$18.95$19.2255,800
2006-07-03$19.43$19.7078,700
2006-06-30$19.99$20.27258,500
2006-06-29$19.58$19.8695,300
2006-06-28$19.08$19.3572,400
2006-06-27$18.45$18.7197,500
2006-06-26$18.24$18.5063,700
2006-06-23$17.43$17.6830,300
2006-06-22$17.29$17.53206,900
2006-06-21$17.51$17.76325,300
2006-06-20$17.00$17.24240,800
2006-06-19$17.50$17.75238,600
2006-06-16$17.81$18.06202,600
2006-06-15$18.40$18.66183,200
2006-06-14$17.26$17.5079,900
2006-06-13$17.10$17.34166,500
2006-06-12$17.80$18.05185,300
2006-06-09$18.98$19.25137,600
2006-06-08$17.67$17.92288,900
2006-06-07$18.76$19.0352,800
2006-06-06$19.01$19.2864,700
2006-06-05$19.51$19.7989,500
2006-06-02$20.79$21.0872,700
2006-06-01$21.06$21.36104,700
2006-05-31$19.56$19.8478,200
2006-05-30$18.35$18.61136,300
2006-05-26$19.42$19.69233,300
2006-05-25$18.76$18.85287,100
2006-05-24$18.99$19.08182,200
2006-05-23$19.75$19.8586,800
2006-05-22$20.10$20.20149,400
2006-05-19$21.37$21.4871,300
2006-05-18$21.37$21.4881,200
2006-05-17$21.73$21.8496,600
2006-05-16$21.79$21.90100,300
2006-05-15$22.12$22.23178,000
2006-05-12$21.50$21.61716,000
2006-05-11$22.82$22.93564,000
2006-05-10$20.30$20.4071,300
2006-05-09$20.15$20.2562,600
2006-05-08$20.05$20.15112,100
2006-05-05$20.20$20.30199,400
2006-05-04$20.18$20.2826,300
2006-05-03$20.20$20.3025,600
2006-05-02$20.05$20.15133,500
2006-05-01$19.94$20.04146,200
2006-04-28$20.00$20.1065,100
2006-04-27$19.38$19.4849,000
2006-04-26$19.35$19.45221,500
2006-04-25$19.24$19.34109,400
2006-04-24$19.31$19.4199,000
2006-04-21$19.97$20.07115,000
2006-04-20$20.35$20.4592,700
2006-04-19$20.25$20.35127,600
2006-04-18$21.00$21.1093,200
2006-04-17$19.83$19.9379,300
2006-04-13$19.94$20.0461,100
2006-04-12$20.07$20.1770,300
2006-04-11$20.09$20.19206,600
2006-04-10$20.56$20.66143,800
2006-04-07$20.94$21.04240,200
2006-04-06$20.70$20.80348,800
2006-04-05$20.54$20.64134,800
2006-04-04$19.07$19.16165,600
2006-04-03$18.97$19.06367,500
2006-03-31$19.65$19.75735,200
2006-03-30$20.10$20.20101,800
2006-03-29$20.45$20.5584,500
2006-03-28$20.25$20.25116,100
2006-03-27$20.06$20.06198,400
2006-03-24$19.85$19.85376,900
2006-03-23$19.34$19.34599,400
2006-03-22$18.25$18.2539,200
2006-03-21$18.05$18.0555,900
2006-03-20$18.36$18.3649,900
2006-03-17$17.35$17.35101,500
2006-03-16$17.10$17.10266,000
2006-03-15$17.33$17.33150,300
2006-03-14$17.08$17.08101,500
2006-03-13$16.98$16.9845,500
2006-03-10$17.30$17.3071,400
2006-03-09$17.25$17.25413,900
2006-03-08$17.49$17.49192,800
2006-03-07$17.70$17.70159,000
2006-03-06$18.60$18.6028,200
2006-03-03$18.70$18.7059,300
2006-03-02$18.53$18.53144,300
2006-03-01$18.80$18.8083,500
2006-02-28$18.90$18.9052,900
2006-02-27$18.75$18.7528,900
2006-02-24$18.95$18.9557,800
2006-02-23$19.00$19.0055,700
2006-02-22$19.24$19.24208,400
2006-02-21$19.50$19.50195,100
2006-02-17$18.10$18.1089,300
2006-02-16$17.70$17.70209,900
2006-02-15$18.21$18.2154,500
2006-02-14$18.30$18.30123,300
2006-02-13$17.60$17.60141,100
2006-02-10$17.55$17.55102,500
2006-02-09$17.52$17.52196,600
2006-02-08$17.00$17.00161,300
2006-02-07$17.00$17.00328,600
2006-02-06$17.25$17.25267,500
2006-02-03$16.95$16.95289,000
2006-02-02$16.15$16.15751,100
2006-02-01$15.75$15.755,037,200