O S I Systems Inc (NQ: OSIS )

Date	Open	High	Low	Close	Volume	Change (%)
May 31, 2013	57.80	58.89	56.95	57.84	339,063	-0.45(-0.77%)
May 30, 2013	57.43	58.49	57.08	58.29	457,350	+0.91(+1.59%)
May 29, 2013	58.96	59.09	56.15	57.38	583,913	-1.74(-2.94%)
May 28, 2013	58.58	59.90	58.04	59.12	344,444	+1.27(+2.20%)
May 24, 2013	57.02	57.86	56.47	57.85	0	+0.35(+0.61%)
May 23, 2013	54.11	58.35	53.59	57.50	0	+2.91(+5.33%)
May 22, 2013	53.41	55.95	51.31	54.59	0	+1.34(+2.52%)
May 21, 2013	61.24	61.30	51.83	53.25	1,784,211	-8.05(-13.13%)
May 20, 2013	55.00	63.00	55.00	61.30	0	-5.04(-7.60%)
May 17, 2013	64.92	66.36	64.64	66.34	0	+1.49(+2.30%)
May 16, 2013	63.57	65.15	63.41	64.85	386,827	+0.92(+1.44%)
May 15, 2013	62.00	64.75	62.00	63.93	0	+3.06(+5.03%)
May 13, 2013	60.37	61.14	60.24	60.87	0	+0.27(+0.45%)
May 10, 2013	60.13	60.79	60.03	60.60	0	+0.49(+0.82%)
May 09, 2013	59.27	60.46	58.96	60.11	0	+0.94(+1.59%)
May 08, 2013	58.91	59.33	58.29	59.17	0	+0.26(+0.44%)
May 07, 2013	58.30	59.14	58.30	58.91	0	+0.52(+0.89%)
May 06, 2013	58.03	58.40	57.50	58.39	0	+0.53(+0.92%)
May 03, 2013	57.29	58.44	57.29	57.86	0	+1.29(+2.28%)
May 02, 2013	55.53	57.05	55.06	56.57	0	+1.43(+2.59%)
May 01, 2013	57.68	57.92	55.13	55.14	307,884	-2.16(-3.77%)
Apr 30, 2013	56.80	57.75	56.15	57.30	0	+0.46(+0.81%)
Apr 29, 2013	57.51	58.27	56.81	56.84	248,685	-0.76(-1.32%)
Apr 26, 2013	56.43	57.79	56.43	57.60	364,753	+0.89(+1.57%)
Apr 25, 2013	58.62	59.23	55.42	56.71	0	-1.99(-3.39%)
Apr 24, 2013	48.12	59.24	48.10	58.70	1,654,580	+5.22(+9.76%)
Apr 23, 2013	51.94	53.55	51.77	53.48	472,697	+1.73(+3.34%)
Apr 22, 2013	54.80	54.80	50.81	51.75	721,201	-2.75(-5.05%)
Apr 19, 2013	55.22	55.47	53.81	54.50	332,028	-0.50(-0.91%)
Apr 18, 2013	55.83	55.87	54.87	55.00	138,934	-0.72(-1.29%)
Apr 17, 2013	55.21	55.84	54.31	55.72	231,309	+0.23(+0.41%)
Apr 16, 2013	57.76	57.90	54.92	55.49	411,784	-1.65(-2.89%)
Apr 15, 2013	57.84	58.12	55.86	57.14	395,704	-1.10(-1.89%)
Apr 12, 2013	58.19	58.61	57.10	58.24	116,568	-0.41(-0.70%)
Apr 11, 2013	58.22	59.44	58.12	58.65	180,162	+0.56(+0.96%)
Apr 10, 2013	57.99	58.27	57.68	58.09	367,425	+0.09(+0.16%)
Apr 09, 2013	58.35	58.48	57.94	58.00	104,957	-0.35(-0.60%)
Apr 08, 2013	58.57	59.00	58.12	58.35	134,539	-0.21(-0.36%)
Apr 05, 2013	57.77	58.88	57.63	58.56	282,485	-0.31(-0.53%)
Apr 04, 2013	59.29	60.07	58.60	58.87	289,505	-0.46(-0.78%)
Apr 03, 2013	61.07	61.46	59.26	59.33	227,014	-1.67(-2.74%)
Apr 02, 2013	61.80	61.80	60.82	61.00	114,887	-0.33(-0.54%)
Apr 01, 2013	62.43	62.80	60.90	61.33	232,184	-0.96(-1.54%)
Mar 28, 2013	62.93	62.93	61.65	62.29	320,243	-0.32(-0.51%)
Mar 27, 2013	63.87	63.91	61.35	62.61	437,045	-1.79(-2.78%)
Mar 26, 2013	64.84	65.10	63.81	64.40	162,484	-0.04(-0.06%)
Mar 25, 2013	64.99	66.18	63.59	64.44	235,907	-0.23(-0.36%)
Mar 22, 2013	65.19	65.67	64.55	64.67	202,960	-0.40(-0.61%)
Mar 21, 2013	64.76	65.70	64.76	65.07	271,742	-0.28(-0.43%)
Mar 20, 2013	64.74	65.97	64.62	65.35	240,603	+0.90(+1.40%)
Mar 19, 2013	64.73	64.85	63.54	64.45	206,396	-0.25(-0.39%)
Mar 18, 2013	63.66	64.89	63.66	64.70	234,873	+0.21(+0.33%)
Mar 15, 2013	65.00	65.00	63.71	64.49	341,996	-0.61(-0.94%)
Mar 14, 2013	64.35	65.13	63.66	65.10	198,735	+1.05(+1.64%)
Mar 13, 2013	62.43	64.23	62.34	64.05	214,335	+1.47(+2.35%)
Mar 12, 2013	62.26	62.64	61.45	62.58	233,857	+0.01(+0.02%)
Mar 11, 2013	62.78	62.93	62.37	62.57	263,379	-0.59(-0.93%)
Mar 08, 2013	62.58	63.34	61.69	63.16	221,398	+0.94(+1.51%)
Mar 07, 2013	61.53	62.88	60.70	62.22	222,470	+0.69(+1.12%)
Mar 06, 2013	60.47	61.55	60.19	61.53	273,517	+1.04(+1.72%)
Mar 05, 2013	61.07	61.50	60.25	60.49	250,332	-0.40(-0.66%)
Mar 04, 2013	57.35	61.35	57.35	60.89	834,458	+3.29(+5.71%)

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