Koppers Holdings Inc (NY: KOP )

Date	Open	High	Low	Close	Volume	Change (%)
Apr 29, 2011	40.45	40.94	40.22	40.82	76,084	+0.55(+1.37%)
Apr 28, 2011	40.67	40.67	40.15	40.27	100,875	-0.40(-0.99%)
Apr 27, 2011	40.38	40.76	39.53	40.67	94,418	+0.43(+1.06%)
Apr 26, 2011	40.65	40.87	40.16	40.24	119,260	-0.16(-0.40%)
Apr 25, 2011	40.38	40.67	39.82	40.40	112,392	-0.04(-0.09%)
Apr 21, 2011	40.64	40.94	40.09	40.44	74,935	+0.15(+0.38%)
Apr 20, 2011	39.96	40.58	39.87	40.28	87,905	+1.09(+2.78%)
Apr 19, 2011	39.03	39.46	38.38	39.20	99,680	+0.37(+0.97%)
Apr 18, 2011	38.61	39.13	38.37	38.82	151,438	-0.55(-1.41%)
Apr 15, 2011	38.66	39.42	38.18	39.37	100,732	+0.65(+1.68%)
Apr 14, 2011	38.30	38.80	38.16	38.72	104,298	+0.06(+0.16%)
Apr 13, 2011	39.11	39.21	38.06	38.66	115,531	-0.12(-0.30%)
Apr 12, 2011	38.95	39.05	38.59	38.78	158,377	-0.69(-1.74%)
Apr 11, 2011	39.55	39.87	39.30	39.46	106,595	+0.05(+0.14%)
Apr 08, 2011	40.32	40.66	39.19	39.41	99,614	-0.61(-1.52%)
Apr 07, 2011	39.74	40.27	39.57	40.02	118,878	+0.37(+0.95%)
Apr 06, 2011	39.95	40.16	39.28	39.64	106,940	-0.01(-0.02%)
Apr 05, 2011	39.15	40.03	38.83	39.65	132,424	+0.45(+1.14%)
Apr 04, 2011	39.07	40.11	38.82	39.20	310,629	+0.42(+1.08%)

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