Koppers Holdings Inc. (KOP) NYSE

Currency In USD

KOP Historical Return

If you invested $1000 in Koppers Holdings Inc. (KOP) 10 years ago, it would be worth $1,505.59 as of June 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,469.73, while $1000 invested 1 year ago would be worth $1,408.69. This corresponds to total returns of 50.56%, 46.97%, 40.87%, respectively, with annualized returns of 4.17%, 8%, 40.87%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

KOP Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
June 22, 2026	43.49	44.42	44.42	44.46	42.65	291,772
June 18, 2026	43.94	43.73	43.73	44.74	43.42	385,864
June 17, 2026	44.53	43.65	43.65	45.44	43.64	153,445
June 16, 2026	44.65	44.5	44.5	45.33	44.26	183,870
June 15, 2026	44.07	44.4	44.4	44.55	43.63	183,942
June 12, 2026	41.92	43.41	43.41	43.66	41.87	160,821
June 11, 2026	42.17	41.52	41.52	42.17	40.81	110,461
June 10, 2026	41.7	41.68	41.68	42.31	41.49	167,193
June 09, 2026	41.9	41.86	41.86	42.6	40.8	145,684
June 08, 2026	41.22	41.22	41.22	41.76	40.62	178,072
June 05, 2026	42.04	40.81	40.81	42.38	40.62	167,234
June 04, 2026	43.36	42.16	42.16	43.57	41.72	272,194
June 03, 2026	42.09	43.09	43.09	43.52	42.01	228,673
June 02, 2026	41.17	42.48	42.48	42.61	40.63	124,488
June 01, 2026	40.58	41.19	41.19	41.29	40.2	114,970
May 29, 2026	40.97	40.8	40.8	41.36	40.64	228,356
May 28, 2026	42.46	41.29	41.29	42.61	41.1	107,922
May 27, 2026	41.7	42.73	42.73	42.77	41.7	141,860
May 26, 2026	41.57	41.54	41.54	42	40.85	174,037
May 22, 2026	40.05	40.36	40.36	40.58	39.54	21,954
May 21, 2026	38.56	39.63	39.63	39.67	38.5	150,846
May 20, 2026	38.22	39.2	39.2	39.49	38.14	160,698
May 19, 2026	39.86	38.31	38.31	39.96	38.13	223,628
May 18, 2026	40.73	40.39	40.39	41.96	40.39	204,426
May 15, 2026	42.23	40.68	40.68	42.23	40.33	233,653
May 14, 2026	43.23	42.41	42.41	43.88	41.94	367,472
May 13, 2026	43.77	42.69	42.69	44.67	42.3	294,096
May 12, 2026	42.99	43.55	43.55	44.1	42.42	328,906
May 11, 2026	44	43.08	43.08	44	41.91	253,107
May 08, 2026	44.38	43.99	43.99	46.4	42.45	334,015
May 07, 2026	41.49	41.16	41.16	42.41	41.09	158,210
May 06, 2026	41.8	41.61	41.61	42.04	40.18	84,086
May 05, 2026	40.04	41.35	41.35	41.89	39.5	121,042
May 04, 2026	41.7	39.84	39.84	41.74	39.5	148,337
May 01, 2026	41.09	41.91	41.91	41.93	41	145,904
April 30, 2026	39.73	40.83	40.83	41.06	39.73	109,592
April 29, 2026	41.61	39.8	39.8	41.61	39.75	166,441
April 28, 2026	41.5	41.46	41.46	42.17	40.91	193,660
April 27, 2026	40.47	41.35	41.35	41.42	40.31	153,497
April 24, 2026	39	40.28	40.28	40.49	38.85	142,504
April 23, 2026	38.12	38.65	38.65	38.8	37.66	129,023
April 22, 2026	38.06	38.01	38.01	38.06	37.42	83,166
April 21, 2026	37.58	37.52	37.52	38.19	36.74	150,269
April 20, 2026	37.58	37.44	37.44	37.96	37.35	71,675
April 17, 2026	36.92	37.69	37.69	38.13	36.56	161,846
April 16, 2026	37.35	36.98	36.98	37.85	36.77	125,410
April 15, 2026	38.27	37.54	37.54	38.27	37.43	102,118
April 14, 2026	38.28	38.44	38.44	38.89	37.9	122,335
April 13, 2026	37.46	38.42	38.42	38.46	37.14	118,009
April 10, 2026	37.07	37.44	37.44	37.5	37.07	82,076
April 09, 2026	37.21	37.04	37.04	37.61	36.7	144,597
April 08, 2026	37.2	37.36	37.36	37.43	36.93	136,353
April 07, 2026	35.75	36.67	36.67	36.73	35.62	217,700
April 06, 2026	37.18	35.79	35.79	37.19	35.68	173,404
April 02, 2026	36.94	37.29	37.29	37.84	36.31	237,320
April 01, 2026	38.59	37.65	37.65	38.93	37.54	200,581
March 31, 2026	38.61	38.68	38.68	39.09	37.97	171,492
March 30, 2026	38.47	38.24	38.24	38.54	38	205,022
March 27, 2026	38.32	37.92	37.92	38.67	37.54	136,562
March 26, 2026	37.65	38.77	38.77	38.84	37.65	272,527