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

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Jul 31, 2007	18.68	19.58	18.53	19.12	2,904,315	+0.51(+2.74%)
Jul 30, 2007	17.66	18.74	17.53	18.61	1,406,644	+1.15(+6.57%)
Jul 27, 2007	18.57	18.83	16.90	17.47	2,017,158	-1.20(-6.45%)
Jul 26, 2007	19.54	19.92	14.92	18.67	6,003,856	-1.21(-6.10%)
Jul 25, 2007	20.86	21.14	19.49	19.88	1,651,325	-0.84(-4.07%)
Jul 24, 2007	21.33	21.39	20.30	20.73	2,059,054	-0.94(-4.36%)
Jul 23, 2007	21.90	22.18	21.55	21.67	699,705	-0.20(-0.93%)
Jul 20, 2007	22.71	22.78	21.83	21.87	1,029,581	-0.88(-3.87%)
Jul 19, 2007	22.74	22.81	22.47	22.75	340,026	+0.21(+0.94%)
Jul 18, 2007	22.81	22.88	22.25	22.54	594,965	-0.35(-1.54%)
Jul 17, 2007	22.70	23.22	22.60	22.89	428,893	+0.20(+0.90%)
Jul 16, 2007	22.95	23.21	22.52	22.69	516,248	-0.41(-1.76%)
Jul 13, 2007	22.91	23.31	22.77	23.10	375,551	+0.08(+0.36%)
Jul 12, 2007	22.52	23.10	22.37	23.01	517,760	+0.55(+2.43%)
Jul 11, 2007	22.07	22.63	21.92	22.47	714,174	+0.40(+1.80%)
Jul 10, 2007	22.37	22.48	21.75	22.07	697,437	-0.59(-2.62%)
Jul 09, 2007	22.89	23.04	22.57	22.66	484,394	-0.26(-1.13%)
Jul 06, 2007	22.62	23.02	22.17	22.92	402,546	+0.22(+0.98%)
Jul 05, 2007	22.25	22.70	21.95	22.70	526,830	+0.43(+1.91%)
Jul 03, 2007	22.66	22.68	22.12	22.27	549,505	-0.42(-1.84%)