O S I Systems Inc (NQ: OSIS )

Date	Open	High	Low	Close	Volume	Change (%)
May 31, 2007	26.63	26.96	26.28	26.77	157,936	+0.16(+0.60%)
May 30, 2007	26.77	26.93	26.53	26.61	107,144	-0.39(-1.44%)
May 29, 2007	27.07	27.33	26.82	27.00	98,605	+0.05(+0.19%)
May 25, 2007	26.78	27.33	26.55	26.95	150,536	+0.23(+0.86%)
May 24, 2007	27.51	27.71	26.56	26.72	215,047	-0.85(-3.08%)
May 23, 2007	27.75	28.21	27.53	27.57	167,453	-0.15(-0.54%)
May 22, 2007	28.23	28.23	27.60	27.72	191,619	-0.42(-1.49%)
May 21, 2007	27.75	28.40	27.64	28.14	107,854	+0.24(+0.86%)
May 18, 2007	27.73	27.98	27.50	27.90	89,584	+0.31(+1.12%)
May 17, 2007	28.12	28.12	27.57	27.59	106,738	-0.51(-1.81%)
May 16, 2007	27.80	28.10	27.51	28.10	129,790	+0.31(+1.12%)
May 15, 2007	28.40	28.88	27.79	27.79	270,972	-0.59(-2.08%)
May 14, 2007	28.92	29.20	28.28	28.38	287,544	-0.42(-1.46%)
May 11, 2007	28.22	28.82	28.10	28.80	136,250	+0.75(+2.67%)
May 10, 2007	29.22	29.28	27.91	28.05	285,993	-1.17(-4.00%)
May 09, 2007	27.26	29.80	27.11	29.22	669,980	+2.04(+7.51%)
May 08, 2007	27.00	27.98	27.00	27.18	306,431	+0.69(+2.60%)
May 07, 2007	26.00	26.70	25.56	26.49	220,774	+0.11(+0.42%)
May 04, 2007	26.19	26.42	26.02	26.38	132,929	+0.29(+1.11%)
May 03, 2007	26.49	26.49	26.09	26.09	101,406	-0.30(-1.14%)
May 02, 2007	26.35	26.65	26.25	26.39	136,241	-0.04(-0.15%)
May 01, 2007	26.40	26.70	26.34	26.43	69,785	+0.02(+0.08%)
Apr 30, 2007	27.12	27.28	26.39	26.41	117,459	-0.63(-2.33%)
Apr 27, 2007	26.91	27.19	26.71	27.04	147,814	+0.00(+0.00%)
Apr 26, 2007	26.97	27.11	26.71	27.04	80,810	+0.15(+0.56%)
Apr 25, 2007	27.10	27.19	26.76	26.89	58,466	-0.05(-0.19%)
Apr 24, 2007	27.10	27.14	26.75	26.94	80,808	-0.09(-0.33%)
Apr 23, 2007	27.19	27.19	26.84	27.03	69,537	-0.04(-0.15%)
Apr 20, 2007	27.08	27.23	26.97	27.07	81,999	+0.37(+1.39%)
Apr 19, 2007	26.89	27.06	26.51	26.70	86,048	-0.31(-1.15%)
Apr 18, 2007	26.81	27.18	26.70	27.01	89,623	+0.10(+0.37%)
Apr 17, 2007	27.40	27.43	26.75	26.91	108,282	-0.46(-1.68%)
Apr 16, 2007	27.09	27.40	27.04	27.37	94,480	+0.44(+1.63%)
Apr 13, 2007	26.47	26.93	26.47	26.93	152,954	+0.59(+2.24%)
Apr 12, 2007	26.55	26.58	26.24	26.34	128,447	-0.11(-0.42%)
Apr 11, 2007	26.50	26.64	26.30	26.45	92,729	-0.05(-0.19%)
Apr 10, 2007	26.33	26.55	26.25	26.50	111,320	+0.26(+0.99%)
Apr 09, 2007	26.28	26.31	26.05	26.24	184,537	+0.04(+0.15%)
Apr 05, 2007	26.27	26.41	26.06	26.20	110,830	-0.15(-0.57%)
Apr 04, 2007	26.58	26.77	26.29	26.35	96,844	-0.17(-0.64%)
Apr 03, 2007	26.44	26.97	26.44	26.52	131,779	+0.14(+0.53%)
Apr 02, 2007	26.46	26.46	26.05	26.38	86,047	-0.06(-0.23%)
Mar 30, 2007	25.88	26.44	25.88	26.44	193,805	+0.51(+1.97%)
Mar 29, 2007	26.29	26.34	25.50	25.93	125,056	-0.23(-0.88%)
Mar 28, 2007	25.98	26.21	25.58	26.16	135,160	+0.06(+0.23%)
Mar 27, 2007	26.09	26.27	26.00	26.10	148,735	+0.06(+0.23%)
Mar 26, 2007	25.85	26.11	25.64	26.04	110,786	+0.27(+1.05%)
Mar 23, 2007	25.74	25.93	25.48	25.77	145,795	-0.03(-0.12%)
Mar 22, 2007	25.87	25.87	25.41	25.80	346,057	-0.09(-0.35%)
Mar 21, 2007	25.10	25.90	24.99	25.89	201,624	+0.79(+3.15%)
Mar 20, 2007	25.33	25.39	24.86	25.10	400,987	-0.39(-1.53%)
Mar 19, 2007	25.04	25.60	25.04	25.49	242,060	+0.48(+1.92%)
Mar 16, 2007	24.61	25.10	24.31	25.01	305,723	+0.36(+1.46%)
Mar 15, 2007	24.16	24.81	24.16	24.65	137,140	+0.37(+1.52%)
Mar 14, 2007	24.29	24.42	23.60	24.28	167,589	-0.11(-0.45%)
Mar 13, 2007	25.03	25.13	24.18	24.39	121,764	-0.64(-2.56%)
Mar 12, 2007	25.18	25.23	24.84	25.03	110,249	-0.10(-0.40%)
Mar 09, 2007	25.00	25.41	24.86	25.13	115,390	+0.27(+1.09%)
Mar 08, 2007	24.59	25.19	24.59	24.86	200,249	+0.43(+1.76%)
Mar 07, 2007	24.73	25.21	24.43	24.43	240,884	-0.14(-0.57%)
Mar 06, 2007	24.28	24.90	24.12	24.57	192,601	+0.56(+2.33%)
Mar 05, 2007	24.35	24.83	23.97	24.01	265,670	-0.54(-2.20%)
Mar 02, 2007	24.99	25.14	24.30	24.55	232,011	-0.53(-2.11%)

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