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

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
Dec 29, 2006	19.79	19.97	19.60	19.80	377,600	+0.01(+0.05%)
Dec 28, 2006	19.98	20.23	19.66	19.79	468,100	-0.20(-1.00%)
Dec 27, 2006	19.88	20.03	19.70	19.99	298,000	+0.22(+1.11%)
Dec 26, 2006	19.50	19.87	19.49	19.77	229,600	+0.24(+1.23%)
Dec 22, 2006	19.62	19.69	19.41	19.53	212,700	-0.13(-0.66%)
Dec 21, 2006	20.00	20.20	19.32	19.66	553,000	-0.34(-1.70%)
Dec 20, 2006	19.88	20.18	19.75	20.00	510,600	+0.13(+0.65%)
Dec 19, 2006	19.78	20.10	19.58	19.87	869,300	-0.04(-0.20%)
Dec 18, 2006	20.31	20.40	19.76	19.91	1,230,300	-0.44(-2.16%)
Dec 15, 2006	18.85	20.45	18.85	20.35	3,550,700	+1.73(+9.29%)
Dec 14, 2006	18.15	18.78	18.13	18.62	827,500	+0.51(+2.82%)
Dec 13, 2006	18.49	18.67	17.93	18.11	829,900	-0.24(-1.31%)
Dec 12, 2006	18.90	18.90	18.20	18.35	538,700	-0.55(-2.91%)
Dec 11, 2006	18.52	19.00	18.48	18.90	1,034,000	+0.38(+2.05%)
Dec 08, 2006	18.24	18.74	18.24	18.52	526,900	+0.17(+0.93%)
Dec 07, 2006	18.50	18.75	17.91	18.35	955,100	+0.02(+0.11%)
Dec 06, 2006	17.19	18.38	16.78	18.33	2,311,500	+1.13(+6.57%)
Dec 05, 2006	17.39	18.06	16.94	17.20	2,015,800	-0.80(-4.44%)
Dec 04, 2006	18.53	18.90	17.84	18.00	1,650,900	-0.64(-3.43%)
Dec 01, 2006	18.30	19.00	18.02	18.64	2,826,300	+0.27(+1.47%)
Nov 30, 2006	16.47	18.60	16.40	18.37	4,222,700	+1.85(+11.20%)
Nov 29, 2006	15.49	16.67	15.49	16.52	1,681,100	+1.15(+7.48%)
Nov 28, 2006	15.22	15.66	15.11	15.37	594,200	+0.03(+0.20%)
Nov 27, 2006	15.81	15.81	15.08	15.34	1,169,200	-0.57(-3.58%)
Nov 24, 2006	15.49	15.99	15.40	15.91	277,500	+0.32(+2.05%)
Nov 22, 2006	15.80	15.92	15.37	15.59	781,200	-0.19(-1.20%)
Nov 21, 2006	15.90	16.25	15.66	15.78	636,000	-0.08(-0.50%)
Nov 20, 2006	15.65	15.90	15.53	15.86	495,000	+0.29(+1.86%)
Nov 17, 2006	15.35	15.58	15.02	15.57	504,900	+0.09(+0.58%)
Nov 16, 2006	15.25	15.75	15.25	15.48	1,180,200	+0.27(+1.78%)
Nov 15, 2006	14.46	15.50	14.40	15.21	1,735,100	+0.75(+5.19%)
Nov 14, 2006	14.03	14.60	13.88	14.46	597,600	+0.44(+3.14%)
Nov 13, 2006	13.78	14.09	13.62	14.02	291,300	+0.23(+1.67%)
Nov 10, 2006	13.73	13.93	13.63	13.79	271,800	+0.04(+0.29%)
Nov 09, 2006	13.91	13.95	13.66	13.75	296,900	-0.17(-1.22%)
Nov 08, 2006	13.89	14.07	13.66	13.92	402,400	-0.06(-0.43%)
Nov 07, 2006	13.86	14.29	13.81	13.98	569,900	+0.11(+0.79%)
Nov 06, 2006	13.46	13.96	13.37	13.87	372,300	+0.56(+4.21%)
Nov 03, 2006	13.48	13.68	13.08	13.31	337,500	-0.13(-0.97%)
Nov 02, 2006	13.15	13.59	13.13	13.44	320,600	+0.21(+1.59%)
Nov 01, 2006	13.40	13.58	13.18	13.23	469,800	-0.17(-1.27%)
Oct 31, 2006	13.55	13.65	13.22	13.40	283,100	-0.10(-0.74%)
Oct 30, 2006	13.62	13.68	13.31	13.50	391,100	-0.19(-1.39%)
Oct 27, 2006	14.15	14.15	13.56	13.69	367,300	-0.45(-3.18%)
Oct 26, 2006	13.97	14.15	13.82	14.14	587,400	+0.32(+2.32%)
Oct 25, 2006	13.34	13.89	13.34	13.82	497,500	+0.42(+3.13%)
Oct 24, 2006	13.24	13.58	13.15	13.40	465,600	+0.07(+0.53%)
Oct 23, 2006	13.38	13.58	13.28	13.33	204,600	-0.15(-1.11%)
Oct 20, 2006	13.77	13.81	13.36	13.48	383,500	-0.24(-1.75%)
Oct 19, 2006	13.64	14.00	13.55	13.72	696,100	+0.23(+1.70%)
Oct 18, 2006	13.17	13.62	13.15	13.49	1,310,500	+0.45(+3.45%)
Oct 17, 2006	13.22	13.22	12.82	13.04	395,700	-0.30(-2.25%)
Oct 16, 2006	13.00	13.36	13.00	13.34	318,100	+0.35(+2.69%)
Oct 13, 2006	12.71	13.05	12.59	12.99	414,500	+0.34(+2.69%)
Oct 12, 2006	12.46	12.66	12.20	12.65	333,800	+0.24(+1.93%)
Oct 11, 2006	12.70	12.75	12.17	12.41	387,700	-0.29(-2.28%)
Oct 10, 2006	12.72	12.73	12.30	12.70	388,900	+0.05(+0.40%)
Oct 09, 2006	12.56	12.74	12.50	12.65	184,600	+0.02(+0.16%)
Oct 06, 2006	12.53	12.73	12.35	12.63	403,400	+0.11(+0.88%)
Oct 05, 2006	12.16	12.54	12.11	12.52	721,300	+0.33(+2.71%)
Oct 04, 2006	12.45	12.45	12.06	12.19	1,321,900	-0.31(-2.48%)
Oct 03, 2006	12.87	12.88	12.35	12.50	553,800	-0.42(-3.25%)