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

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
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%)