Koppers Holdings Inc (NY: KOP )

Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2013	40.93	41.35	40.54	41.24	119,107	+0.47(+1.15%)
Apr 29, 2013	40.26	41.32	40.12	40.77	73,703	+0.75(+1.88%)
Apr 26, 2013	40.98	41.07	39.41	40.01	145,747	-1.05(-2.56%)
Apr 25, 2013	41.29	41.43	40.92	41.07	60,779	-0.25(-0.61%)
Apr 24, 2013	40.51	41.39	40.42	41.32	62,289	+0.89(+2.21%)
Apr 23, 2013	39.90	40.51	39.67	40.43	36,634	+0.81(+2.04%)
Apr 22, 2013	39.75	39.75	38.51	39.62	67,415	-0.07(-0.17%)
Apr 19, 2013	38.83	40.05	38.50	39.69	157,069	+0.99(+2.55%)
Apr 18, 2013	39.20	39.35	38.44	38.70	77,189	-0.34(-0.87%)
Apr 17, 2013	39.42	39.97	38.80	39.04	130,121	-0.84(-2.10%)
Apr 16, 2013	39.15	40.03	38.97	39.87	90,477	+1.15(+2.96%)
Apr 15, 2013	40.99	41.25	38.54	38.73	138,809	-2.54(-6.14%)
Apr 12, 2013	40.96	41.37	40.95	41.26	69,200	-0.01(-0.02%)
Apr 11, 2013	41.32	41.49	40.94	41.27	73,206	+0.02(+0.05%)
Apr 10, 2013	40.72	41.68	40.18	41.25	148,922	+0.72(+1.78%)
Apr 09, 2013	40.05	40.90	39.99	40.53	133,043	+0.61(+1.53%)
Apr 08, 2013	39.45	40.23	39.45	39.92	137,661	-0.25(-0.63%)
Apr 05, 2013	39.45	40.40	39.03	40.17	122,281	-0.39(-0.95%)
Apr 04, 2013	40.74	40.95	40.10	40.56	123,832	-0.20(-0.48%)
Apr 03, 2013	40.74	41.05	40.46	40.76	158,579	+0.08(+0.18%)
Apr 02, 2013	40.95	40.95	40.48	40.68	67,097	+0.11(+0.28%)
Apr 01, 2013	41.14	41.14	40.05	40.57	75,179	-0.73(-1.77%)
Mar 28, 2013	41.27	41.52	41.18	41.30	82,849	+0.01(+0.02%)
Mar 27, 2013	41.41	41.62	41.09	41.29	130,747	-0.62(-1.48%)
Mar 26, 2013	42.79	42.94	41.70	41.91	63,877	-0.58(-1.37%)
Mar 25, 2013	42.22	42.73	42.17	42.49	107,986	+0.30(+0.71%)
Mar 22, 2013	41.91	42.23	41.67	42.19	75,930	+0.35(+0.83%)
Mar 21, 2013	41.37	42.18	41.09	41.85	98,152	+0.01(+0.02%)
Mar 20, 2013	41.32	41.96	40.99	41.84	91,719	+0.79(+1.92%)
Mar 19, 2013	40.62	41.12	40.62	41.05	88,094	+0.39(+0.97%)
Mar 18, 2013	39.91	40.84	39.91	40.65	53,116	+0.23(+0.58%)
Mar 15, 2013	40.17	40.76	40.03	40.42	118,787	+0.08(+0.21%)
Mar 14, 2013	39.93	40.34	39.63	40.33	53,976	+0.44(+1.11%)
Mar 13, 2013	39.97	40.07	39.64	39.89	83,372	-0.13(-0.33%)
Mar 12, 2013	39.77	40.37	39.77	40.02	47,848	-0.01(-0.02%)
Mar 11, 2013	40.25	40.27	39.69	40.03	65,787	-0.48(-1.18%)
Mar 08, 2013	40.42	40.61	39.96	40.51	79,121	+0.65(+1.63%)
Mar 07, 2013	39.11	39.97	38.91	39.86	94,388	+0.74(+1.90%)
Mar 06, 2013	38.75	39.20	38.68	39.12	101,560	+0.48(+1.24%)
Mar 05, 2013	38.19	38.88	38.19	38.64	98,486	+0.68(+1.78%)
Mar 04, 2013	38.05	38.19	37.61	37.97	102,830	-0.42(-1.10%)
Mar 01, 2013	38.33	38.71	37.60	38.39	73,044	-0.56(-1.45%)
Feb 28, 2013	38.36	39.21	38.36	38.95	74,570	+0.57(+1.49%)
Feb 27, 2013	37.49	38.74	37.49	38.38	59,870	+0.79(+2.10%)
Feb 26, 2013	37.48	37.68	37.17	37.59	48,850	-1.40(-3.59%)
Feb 22, 2013	38.53	39.18	38.23	38.99	57,769	+0.57(+1.49%)
Feb 21, 2013	38.51	39.01	38.01	38.42	67,483	-0.17(-0.44%)
Feb 20, 2013	39.99	39.99	38.48	38.59	89,813	-1.57(-3.91%)
Feb 19, 2013	38.59	40.20	38.59	40.16	159,640	+1.26(+3.24%)
Feb 15, 2013	39.50	39.56	38.47	38.90	97,512	-0.02(-0.05%)
Feb 14, 2013	39.95	41.07	38.21	38.92	145,424	-1.04(-2.61%)
Feb 13, 2013	39.53	39.96	39.21	39.96	70,902	+0.35(+0.87%)
Feb 12, 2013	39.46	39.73	38.96	39.61	69,062	+0.24(+0.62%)
Feb 11, 2013	39.16	39.50	38.65	39.37	48,498	+0.07(+0.19%)
Feb 08, 2013	38.78	39.51	38.60	39.30	65,348	+0.49(+1.25%)
Feb 07, 2013	38.66	38.83	38.10	38.81	55,007	+0.21(+0.56%)
Feb 06, 2013	38.22	38.74	38.14	38.60	78,420	+0.32(+0.83%)
Feb 04, 2013	38.34	38.58	37.76	38.28	92,932	-0.49(-1.25%)

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