O S I Systems Inc (NQ: OSIS )

Historical Prices

Date	Open	High	Low	Close	Volume	Change (%)
May 28, 2010	26.57	26.71	25.95	26.21	2,271,618	-0.36(-1.35%)
May 27, 2010	26.44	26.66	26.04	26.57	190,213	+0.56(+2.15%)
May 26, 2010	25.88	26.53	25.81	26.01	340,965	+0.16(+0.62%)
May 25, 2010	25.32	25.90	25.00	25.85	535,381	+1.28(+5.21%)
May 24, 2010	24.60	25.06	24.27	24.57	176,125	-0.05(-0.20%)
May 21, 2010	23.28	24.87	23.15	24.62	327,823	+0.93(+3.93%)
May 20, 2010	23.52	23.98	22.80	23.69	355,769	-0.26(-1.09%)
May 19, 2010	24.25	24.39	23.62	23.95	142,213	-0.42(-1.72%)
May 18, 2010	25.27	25.27	24.20	24.37	94,962	-0.65(-2.60%)
May 17, 2010	25.08	25.69	24.10	25.02	121,137	-0.04(-0.16%)
May 14, 2010	25.32	25.48	24.63	25.06	147,752	-0.45(-1.76%)
May 13, 2010	25.80	26.00	25.51	25.51	131,788	-0.26(-1.01%)
May 12, 2010	25.60	26.02	25.53	25.77	148,464	+0.14(+0.55%)
May 11, 2010	25.21	25.81	24.31	25.63	241,297	+1.09(+4.44%)
May 10, 2010	24.46	24.87	24.09	24.54	116,787	+0.62(+2.59%)
May 07, 2010	24.39	24.96	23.83	23.92	222,539	-0.60(-2.45%)
May 06, 2010	24.52	25.00	23.57	24.52	287,479	-0.14(-0.57%)
May 05, 2010	24.85	25.02	24.35	24.66	255,374	-0.60(-2.38%)
May 04, 2010	26.21	26.43	25.00	25.26	259,912	-1.15(-4.35%)