W.R. Grace & Company (NY: GRA )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2007	22.60	23.22	21.53	22.82	1,087,242	+0.44(+1.99%)
Feb 27, 2007	23.62	23.79	21.75	22.37	1,383,105	-1.80(-7.43%)
Feb 26, 2007	24.41	24.75	23.56	24.17	998,704	-0.16(-0.65%)
Feb 23, 2007	23.29	24.75	23.27	24.33	1,248,023	+0.71(+3.02%)
Feb 22, 2007	23.85	24.00	23.00	23.62	841,481	-0.23(-0.97%)
Feb 21, 2007	22.55	24.04	22.55	23.85	1,337,753	+1.18(+5.19%)
Feb 20, 2007	22.84	22.85	22.32	22.67	697,545	-0.18(-0.77%)
Feb 16, 2007	21.93	22.93	21.73	22.85	1,117,476	+0.93(+4.22%)
Feb 15, 2007	22.00	22.28	21.83	21.92	471,005	-0.10(-0.46%)
Feb 14, 2007	21.85	22.12	21.65	22.02	498,703	+0.19(+0.89%)
Feb 13, 2007	21.68	22.00	21.42	21.83	436,853	+0.23(+1.07%)
Feb 12, 2007	21.75	21.75	21.02	21.60	617,824	-0.16(-0.72%)
Feb 09, 2007	22.09	22.54	21.61	21.75	644,743	-0.31(-1.43%)
Feb 08, 2007	20.85	22.15	20.85	22.07	658,348	+0.74(+3.47%)
Feb 07, 2007	21.58	22.13	20.99	21.33	1,356,110	-0.67(-3.03%)
Feb 06, 2007	20.56	22.60	20.47	22.00	1,852,166	+1.48(+7.22%)
Feb 05, 2007	20.38	20.73	20.38	20.51	512,037	+0.08(+0.41%)
Feb 02, 2007	20.53	20.78	20.32	20.43	549,829	+0.01(+0.05%)
Feb 01, 2007	20.24	20.42	20.19	20.42	574,125	+0.32(+1.61%)
Jan 31, 2007	19.98	20.18	19.79	20.10	556,308	+0.13(+0.65%)
Jan 30, 2007	19.89	20.08	19.82	19.97	286,792	-0.01(-0.05%)
Jan 29, 2007	20.10	20.14	19.57	19.98	477,051	-0.20(-1.01%)
Jan 26, 2007	19.68	20.29	19.64	20.18	691,822	+0.27(+1.35%)
Jan 25, 2007	19.82	19.99	19.56	19.91	719,465	+0.21(+1.08%)
Jan 24, 2007	19.54	19.71	19.13	19.70	928,188	+0.16(+0.81%)
Jan 23, 2007	19.86	19.89	19.49	19.54	624,659	-0.04(-0.19%)
Jan 22, 2007	19.52	19.68	19.24	19.58	1,023,210	+0.02(+0.10%)
Jan 19, 2007	19.29	19.75	19.16	19.56	774,426	+0.28(+1.44%)
Jan 18, 2007	18.91	19.43	18.75	19.28	997,187	+0.34(+1.81%)
Jan 17, 2007	18.29	19.00	18.15	18.94	495,624	+0.37(+1.99%)
Jan 16, 2007	18.57	18.81	18.48	18.57	405,461	+0.05(+0.25%)
Jan 12, 2007	18.74	18.94	18.43	18.52	492,169	-0.29(-1.53%)
Jan 11, 2007	18.57	19.12	18.48	18.81	633,621	+0.31(+1.65%)
Jan 10, 2007	18.16	18.61	18.16	18.50	341,646	+0.15(+0.81%)
Jan 09, 2007	18.40	18.51	18.24	18.36	451,892	-0.01(-0.05%)
Jan 08, 2007	18.52	18.67	18.22	18.36	601,228	-0.16(-0.85%)
Jan 05, 2007	18.57	18.58	18.39	18.52	629,734	-0.13(-0.69%)
Jan 04, 2007	18.55	18.77	18.29	18.65	702,728	+0.10(+0.55%)
Jan 03, 2007	18.36	18.89	18.16	18.55	882,405	+0.21(+1.16%)
Dec 29, 2006	18.33	18.49	18.15	18.34	407,729	+0.01(+0.05%)
Dec 28, 2006	18.50	18.74	18.21	18.33	505,450	-0.19(-1.00%)
Dec 27, 2006	18.41	18.55	18.24	18.51	321,777	+0.20(+1.11%)
Dec 26, 2006	18.06	18.40	18.05	18.31	247,920	+0.22(+1.23%)
Dec 22, 2006	18.17	18.23	17.98	18.09	229,671	-0.12(-0.66%)
Dec 21, 2006	18.52	18.71	17.89	18.21	597,124	-0.31(-1.70%)
Dec 20, 2006	18.41	18.69	18.29	18.52	551,341	+0.12(+0.65%)
Dec 19, 2006	18.32	18.61	18.13	18.40	938,662	-0.04(-0.20%)
Dec 18, 2006	18.81	18.89	18.30	18.44	1,328,467	-0.41(-2.16%)
Dec 15, 2006	17.46	18.94	17.46	18.85	3,834,016	+1.60(+9.29%)
Dec 14, 2006	16.81	17.39	16.79	17.24	893,527	+0.47(+2.82%)
Dec 13, 2006	17.12	17.29	16.61	16.77	896,119	-0.22(-1.31%)
Dec 12, 2006	17.50	17.50	16.86	16.99	581,683	-0.51(-2.91%)
Dec 11, 2006	17.15	17.60	17.11	17.50	1,116,504	+0.35(+2.05%)
Dec 08, 2006	16.89	17.36	16.89	17.15	568,942	+0.16(+0.93%)
Dec 07, 2006	17.13	17.36	16.59	16.99	1,031,309	+0.02(+0.11%)
Dec 06, 2006	15.92	17.02	15.54	16.98	2,495,938	+1.05(+6.57%)
Dec 05, 2006	16.11	16.73	15.69	15.93	2,176,644	-0.74(-4.44%)
Dec 04, 2006	17.16	17.50	16.52	16.67	1,782,628	-0.59(-3.43%)