Koppers Holdings Inc (NY: KOP )

Date	Open	High	Low	Close	Volume	Change (%)
Jul 29, 2011	32.60	33.52	32.48	33.22	102,053	+0.20(+0.60%)
Jul 28, 2011	33.20	33.65	32.89	33.02	100,067	-0.20(-0.59%)
Jul 27, 2011	33.11	33.87	32.65	33.22	181,028	+0.00(+0.00%)
Jul 26, 2011	33.26	33.61	33.08	33.22	70,884	+0.01(+0.03%)
Jul 25, 2011	33.48	33.87	33.20	33.21	60,256	-0.72(-2.12%)
Jul 22, 2011	34.11	34.11	33.86	33.93	53,369	-0.63(-1.82%)
Jul 21, 2011	33.57	34.62	33.45	34.56	93,456	+1.08(+3.22%)
Jul 20, 2011	33.74	33.84	33.20	33.48	46,433	-0.15(-0.45%)
Jul 19, 2011	33.06	33.63	33.03	33.63	78,591	+0.89(+2.71%)
Jul 18, 2011	33.07	33.20	32.25	32.74	75,758	-0.46(-1.38%)
Jul 15, 2011	33.03	33.41	32.77	33.20	72,280	+0.31(+0.96%)
Jul 14, 2011	33.46	33.95	32.78	32.89	120,775	-0.45(-1.35%)
Jul 13, 2011	33.16	34.06	32.98	33.34	82,274	+0.36(+1.09%)
Jul 12, 2011	32.91	33.53	32.79	32.98	63,681	-0.06(-0.19%)
Jul 11, 2011	33.62	33.64	32.85	33.04	86,049	-1.09(-3.21%)
Jul 08, 2011	34.27	34.44	33.65	34.13	76,671	-0.65(-1.86%)
Jul 07, 2011	34.91	35.20	34.61	34.78	73,532	+0.27(+0.78%)
Jul 06, 2011	34.35	34.82	34.15	34.51	107,599	-0.03(-0.08%)
Jul 05, 2011	34.39	34.60	34.13	34.54	76,219	+0.07(+0.21%)
Jul 01, 2011	33.69	34.57	33.69	34.47	91,155	+0.43(+1.27%)
Jun 30, 2011	33.17	34.23	33.12	34.04	112,967	+0.90(+2.71%)
Jun 29, 2011	32.78	33.20	32.44	33.14	80,938	+0.57(+1.74%)
Jun 28, 2011	32.72	33.20	32.54	32.57	95,079	-0.08(-0.25%)
Jun 27, 2011	32.35	32.90	32.06	32.65	108,713	+0.35(+1.08%)
Jun 24, 2011	32.81	33.17	32.07	32.30	173,256	-0.45(-1.37%)
Jun 23, 2011	31.83	32.90	31.21	32.75	122,975	+0.37(+1.14%)
Jun 22, 2011	32.06	32.82	32.06	32.38	88,894	+0.13(+0.39%)
Jun 21, 2011	32.23	32.56	31.93	32.26	209,364	+0.36(+1.13%)
Jun 20, 2011	31.48	31.94	31.44	31.90	122,243	+0.58(+1.86%)
Jun 17, 2011	32.77	32.77	31.27	31.32	169,233	-1.26(-3.86%)
Jun 16, 2011	32.23	32.64	31.64	32.57	168,851	+0.39(+1.23%)
Jun 15, 2011	33.52	33.65	32.16	32.18	122,169	-1.83(-5.38%)
Jun 14, 2011	33.34	34.26	33.29	34.01	89,794	+1.00(+3.02%)
Jun 13, 2011	33.42	33.61	32.82	33.01	144,571	-0.22(-0.65%)
Jun 10, 2011	33.56	33.71	32.95	33.23	113,623	-0.61(-1.80%)
Jun 09, 2011	33.32	34.13	33.11	33.84	94,808	+0.71(+2.14%)
Jun 08, 2011	33.60	33.69	33.02	33.13	89,066	-0.69(-2.04%)
Jun 07, 2011	33.81	34.03	33.43	33.82	130,943	+0.34(+1.02%)
Jun 06, 2011	33.33	34.00	33.13	33.48	133,501	+0.20(+0.59%)
Jun 03, 2011	34.13	34.13	32.99	33.28	161,702	-0.09(-0.27%)
May 24, 2011	34.02	34.52	33.03	33.37	173,984	-0.70(-2.05%)
May 23, 2011	34.77	34.83	34.01	34.07	67,598	-1.38(-3.90%)
May 20, 2011	35.03	35.84	34.46	35.45	97,652	+0.24(+0.69%)
May 19, 2011	35.79	36.06	34.83	35.21	127,078	-0.26(-0.73%)
May 18, 2011	35.28	35.59	35.00	35.47	102,422	+0.39(+1.10%)
May 17, 2011	35.47	35.95	34.85	35.09	104,582	-0.72(-2.00%)
May 16, 2011	36.37	36.75	35.79	35.80	81,991	-0.85(-2.33%)
May 13, 2011	37.32	37.46	36.43	36.66	129,141	-0.55(-1.47%)
May 12, 2011	37.33	37.76	36.88	37.20	91,986	-0.33(-0.88%)
May 11, 2011	37.72	37.94	37.25	37.54	109,493	-0.40(-1.06%)
May 10, 2011	37.65	38.16	37.33	37.94	130,425	+0.60(+1.60%)
May 09, 2011	36.58	37.56	36.31	37.34	102,106	+0.60(+1.63%)
May 06, 2011	37.90	38.14	35.52	36.74	359,223	-0.79(-2.12%)
May 05, 2011	37.76	38.87	37.25	37.54	154,001	-1.27(-3.27%)
May 04, 2011	39.31	39.54	38.09	38.80	149,730	-0.55(-1.41%)
May 03, 2011	39.89	39.97	39.04	39.36	104,904	-0.64(-1.61%)

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