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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$31.16$40.18140,200——
2020-12-30$30.39$39.18114,500——
2020-12-29$29.79$38.41241,700——
2020-12-28$30.40$39.20151,400——
2020-12-24$29.45$37.9737,500——
2020-12-23$29.52$38.06165,900——
2020-12-22$28.73$37.04192,500——
2020-12-21$28.46$36.69300,200——
2020-12-18$27.28$35.17911,000——
2020-12-17$28.30$36.49205,700——
2020-12-16$28.06$36.18117,900——
2020-12-15$28.63$36.91152,300——
2020-12-14$27.54$35.51231,900——
2020-12-11$26.50$34.17138,300——
2020-12-10$27.31$35.21130,900——
2020-12-09$27.99$36.09212,800——
2020-12-08$27.28$35.17327,000——
2020-12-07$28.78$37.11163,400——
2020-12-04$29.03$37.43181,900——
2020-12-03$27.57$35.55133,900——
2020-12-02$27.93$36.0178,100——
2020-12-01$27.70$35.71121,300——
2020-11-30$27.07$34.90402,500——
2020-11-27$28.25$36.4252,500——
2020-11-25$28.50$36.75110,600——
2020-11-24$28.64$36.93177,200——
2020-11-23$27.56$35.53161,500——
2020-11-20$26.49$34.15182,600——
2020-11-19$25.17$32.45201,600——
2020-11-18$26.04$33.57125,700——
2020-11-17$26.72$34.45111,500——
2020-11-16$26.80$34.55190,000——
2020-11-13$25.75$33.20134,700——
2020-11-12$25.70$33.14180,700——
2020-11-11$26.09$33.64162,600——
2020-11-10$26.01$33.54182,900——
2020-11-09$24.52$31.61235,000——
2020-11-06$23.17$29.8795,600——
2020-11-05$24.36$31.4192,600——
2020-11-04$23.02$29.68106,100——
2020-11-03$24.11$31.09127,100——
2020-11-02$23.69$30.54128,300——
2020-10-30$22.43$28.92142,100——
2020-10-29$23.24$29.96132,900——
2020-10-28$22.48$28.98137,400——
2020-10-27$22.68$29.24161,500——
2020-10-26$24.67$31.81314,800——
2020-10-23$25.21$32.5091,000——
2020-10-22$24.42$31.4981,000——
2020-10-21$24.31$31.34121,300——
2020-10-20$25.43$32.79118,600——
2020-10-19$24.79$31.96116,200——
2020-10-16$24.76$31.92121,600——
2020-10-15$24.82$32.00119,600——
2020-10-14$24.46$31.5480,300——
2020-10-13$23.90$30.82164,300——
2020-10-12$24.31$31.3479,900——
2020-10-09$23.80$30.6997,700——
2020-10-08$23.70$30.5690,000——
2020-10-07$23.14$29.84185,400——
2020-10-06$22.70$29.27139,100——
2020-10-05$22.38$28.86107,000——
2020-10-02$22.04$28.42115,300——
2020-10-01$21.02$27.10181,200——
2020-09-30$20.91$26.96129,800——
2020-09-29$20.82$26.84169,600——
2020-09-28$20.88$26.92113,700——
2020-09-25$20.24$26.1096,600——
2020-09-24$20.10$25.92142,700——
2020-09-23$20.07$25.88200,400——
2020-09-22$21.77$28.07161,500——
2020-09-21$20.70$26.69218,200——
2020-09-18$22.57$29.10345,000——
2020-09-17$22.53$29.05206,900——
2020-09-16$21.78$28.08117,200——
2020-09-15$22.20$28.6292,700——
2020-09-14$22.28$28.73111,900——
2020-09-11$22.22$28.6591,200——
2020-09-10$22.43$28.92100,300——
2020-09-09$22.64$29.19106,300——
2020-09-08$22.72$29.29108,900——
2020-09-04$23.36$30.12244,300——
2020-09-03$22.59$29.13209,300——
2020-09-02$24.07$31.03107,200——
2020-09-01$24.45$31.52138,400——
2020-08-31$24.06$31.02125,700——
2020-08-28$24.85$32.04105,800——
2020-08-27$24.73$31.89151,700——
2020-08-26$25.00$32.23114,900——
2020-08-25$25.05$32.30200,100——
2020-08-24$25.69$33.12144,500——
2020-08-21$24.85$32.04124,500——
2020-08-20$25.22$32.5299,500——
2020-08-19$25.77$33.23157,100——
2020-08-18$25.64$33.06216,800——
2020-08-17$25.60$33.0185,000——
2020-08-14$26.19$33.77172,700——
2020-08-13$26.22$33.8186,400——
2020-08-12$26.29$33.9089,200——
2020-08-11$25.73$33.17168,800——
2020-08-10$26.33$33.95141,800——
2020-08-07$26.07$33.61176,400——
2020-08-06$25.95$33.4698,900——
2020-08-05$26.57$34.26182,900——
2020-08-04$25.33$32.6699,400——
2020-08-03$25.34$32.67193,300——
2020-07-31$25.17$32.45203,400——
2020-07-30$25.39$32.74186,400——
2020-07-29$26.10$33.65309,600——
2020-07-28$25.09$32.35298,200——
2020-07-27$25.07$32.32495,300——
2020-07-24$20.51$26.4498,700——
2020-07-23$21.35$27.53167,300——
2020-07-22$20.83$26.86125,800——
2020-07-21$21.02$27.10151,700——
2020-07-20$19.81$25.54158,600——
2020-07-17$20.63$26.60136,300——
2020-07-16$20.10$25.92258,200——
2020-07-15$20.21$26.06264,900——
2020-07-14$19.50$25.14163,800——
2020-07-13$19.01$24.51188,900——
2020-07-10$18.73$24.15115,600——
2020-07-09$17.58$22.67188,600——
2020-07-08$18.23$23.50390,300——
2020-07-07$17.73$22.86181,600——
2020-07-06$18.63$24.02171,400——
2020-07-02$18.38$23.70142,900——
2020-07-01$18.10$23.3499,000——
2020-06-30$18.84$24.29157,100——
2020-06-29$18.40$23.72168,900——
2020-06-26$17.25$22.24417,800——
2020-06-25$18.23$23.50286,500——
2020-06-24$17.96$23.16171,600——
2020-06-23$19.13$24.67191,800——
2020-06-22$19.29$24.87141,100——
2020-06-19$19.37$24.97321,800——
2020-06-18$19.69$25.39338,300——
2020-06-17$18.41$23.74377,100——
2020-06-16$17.94$23.13308,000——
2020-06-15$16.97$21.88198,700——
2020-06-12$17.27$22.27226,500——
2020-06-11$16.37$21.11247,400——
2020-06-10$18.91$24.38345,500——
2020-06-09$21.34$27.51211,000——
2020-06-08$22.73$29.31290,200——
2020-06-05$21.22$27.36261,100——
2020-06-04$20.32$26.20310,600——
2020-06-03$18.89$24.36260,100——
2020-06-02$17.80$22.95322,500——
2020-06-01$17.47$22.52235,000——
2020-05-29$16.57$21.36412,400——
2020-05-28$16.85$21.73297,200——
2020-05-27$18.29$23.58280,600——
2020-05-26$17.17$22.14480,600——
2020-05-22$15.98$20.60266,600——
2020-05-21$15.95$20.57312,300——
2020-05-20$15.84$20.42316,700——
2020-05-19$14.87$19.17378,600——
2020-05-18$14.28$18.41290,300——
2020-05-15$11.95$15.41176,900——
2020-05-14$12.06$15.55237,000——
2020-05-13$12.00$15.47266,800——
2020-05-12$13.36$17.23357,000——
2020-05-11$15.27$19.69276,900——
2020-05-08$15.50$19.98247,500——
2020-05-07$13.31$17.16248,600——
2020-05-06$12.45$16.05149,500——
2020-05-05$13.27$17.11236,700——
2020-05-04$13.74$17.72294,900——
2020-05-01$13.71$17.68353,400——
2020-04-30$15.76$20.32446,600——
2020-04-29$16.20$20.89546,200——
2020-04-28$13.33$17.19399,400——
2020-04-27$11.73$15.12221,500——
2020-04-24$11.19$14.43160,000——
2020-04-23$11.34$14.62395,600——
2020-04-22$10.74$13.85169,900——
2020-04-21$10.55$13.60223,600——
2020-04-20$11.08$14.29202,600——
2020-04-17$12.06$15.55197,800——
2020-04-16$11.28$14.54270,700——
2020-04-15$12.01$15.49209,100——
2020-04-14$13.59$17.52245,100——
2020-04-13$13.20$17.02282,300——
2020-04-09$13.83$17.83399,300——
2020-04-08$13.81$17.81446,100——
2020-04-07$10.57$13.63375,600——
2020-04-06$10.52$13.56294,800——
2020-04-03$8.38$10.80282,200——
2020-04-02$9.47$12.21208,000——
2020-04-01$10.07$12.98255,800——
2020-03-31$12.37$15.95267,000——
2020-03-30$12.60$16.25195,100——
2020-03-27$11.67$15.05223,700——
2020-03-26$12.60$16.25242,500——
2020-03-25$11.33$14.61320,000——
2020-03-24$10.61$13.68210,800——
2020-03-23$9.34$12.04222,900——
2020-03-20$9.50$12.25332,300——
2020-03-19$11.06$14.26251,400——
2020-03-18$10.14$13.07329,800——
2020-03-17$11.88$15.32261,600——
2020-03-16$11.10$14.31215,400——
2020-03-13$14.09$18.17296,300——
2020-03-12$13.04$16.81193,300——
2020-03-11$15.35$19.79290,200——
2020-03-10$16.37$21.11184,700——
2020-03-09$16.33$21.06176,600——
2020-03-06$18.41$23.74200,100——
2020-03-05$19.88$25.63312,500——
2020-03-04$20.37$26.26273,200——
2020-03-03$19.63$25.31213,400——
2020-03-02$20.03$25.83309,700——
2020-02-28$21.86$28.19364,000——
2020-02-27$19.98$25.76292,900——
2020-02-26$23.57$30.39150,500——
2020-02-25$25.51$32.89339,300——
2020-02-24$27.18$35.04146,200——
2020-02-21$28.69$36.99102,500——
2020-02-20$29.22$37.6795,300——
2020-02-19$28.67$36.97207,600——
2020-02-18$28.21$36.37417,600——
2020-02-14$34.54$44.5377,300——
2020-02-13$34.57$44.5796,600——
2020-02-12$35.12$45.28119,200——
2020-02-11$34.17$44.0697,100——
2020-02-10$33.00$42.5588,100——
2020-02-07$32.82$42.3279,700——
2020-02-06$33.26$42.8876,500——
2020-02-05$33.64$43.3771,900——
2020-02-04$32.64$42.08100,300——
2020-02-03$31.86$41.0894,000——
2020-01-31$31.38$40.46189,500——
2020-01-30$32.72$42.1998,500——
2020-01-29$32.74$42.21228,600——
2020-01-28$32.54$41.9681,600——
2020-01-27$32.19$41.50100,400——
2020-01-24$32.77$42.25101,400——
2020-01-23$33.22$42.83112,000——
2020-01-22$33.26$42.8880,100——
2020-01-21$34.03$43.88133,500——
2020-01-17$34.74$44.7993,400——
2020-01-16$34.99$45.11199,300——
2020-01-15$34.75$44.80159,200——
2020-01-14$34.31$44.24156,500——
2020-01-13$33.92$43.73102,000——
2020-01-10$33.33$42.97134,700——
2020-01-09$34.01$43.85114,000——
2020-01-08$34.27$44.19179,600——
2020-01-07$35.65$45.97137,800——
2020-01-06$35.66$45.98174,400——
2020-01-03$37.65$48.54138,700——
2020-01-02$37.89$48.8593,800——