| Code | Name | High | Low | Close | Volume | Change | |
|---|
| OABC | OMNIAMERICAN BANCORP INC. | 11.74 | 11.69 | 11.70 | 73,100 | 0.00 |  | 0.00 | 4 |
| OBAF | OBA FINANCIAL SERVICES INC. | 10.55 | 10.53 | 10.54 | 4,400 | 0.01 |  | 0.09 | 4 |
| OBAS | Optibase Ltd. | 1.320 | 1.300 | 1.300 | 5,400 | 0.020 | | 1.56 | 5 |
| OBCI | Ocean Bio-Chem Inc. | 1.390 | 1.300 | 1.380 | 197,500 | 0.080 | | 6.15 | 7 |
| OCCF | Optical Cable Corporation | 3.070 | 3.010 | 3.060 | 2,400 | 0.000 | | 0.00 | 6 |
| OCFC | OceanFirst Financial Corp. | 11.50 | 11.17 | 11.45 | 48,800 | 0.07 | | 0.62 | 4 |
| OCLR | Ocular Sciences, Inc. | 2.320 | 2.170 | 2.290 | 2,913,700 | 0.120 | | 5.53 | 8 |
| OCLS | Oculus Innovative Sciences Inc. | 3.200 | 2.380 | 2.690 | 11,267,500 | 0.880 | | 48.62 | 7 |
| OCNF | OceanFreight Inc. | 0.8700 | 0.8200 | 0.8200 | 1,702,100 | 0.0300 |  | 3.53 | 4 |
| OCNW | Occam Networks Inc. | 7.140 | 6.860 | 6.870 | 62,800 | 0.080 | | 1.15 | 5 |
| ODFL | Old Dominion Freight Line Inc. | 34.28 | 32.73 | 33.33 | 571,200 | 0.01 | | 0.03 | 4 |
| ODSY | Odyssey Healthcare Inc. | 17.90 | 17.46 | 17.55 | 266,000 | 0.15 | | 0.85 | 7 |
| OESX | Orion Energy Systems Inc. | 5.600 | 5.500 | 5.560 | 173,800 | 0.060 | | 1.09 | 7 |
| OFIX | Orthofix International N.V. | 36.14 | 34.87 | 35.08 | 131,000 | 0.38 | | 1.07 | 6 |
| OFLX | Omega Flex Inc. | 10.94 | 10.68 | 10.80 | 9,300 | 0.15 | | 1.41 | 4 |
| OGXI | Oncogenex Technologies Inc. | 18.77 | 17.33 | 18.68 | 165,800 | 1.29 | | 7.42 | 3 |
| OICO | O. I. Corporation | 8.400 | 8.400 | 8.400 | 100 | 0.040 | | 0.48 | 5 |
| OIIM | O2Micro International | 6.560 | 6.360 | 6.500 | 126,900 | 0.020 | | 0.31 | 6 |
| OKSB | Southwest Bancorp Inc. | 8.510 | 8.250 | 8.390 | 101,000 | 0.000 | | 0.00 | 6 |
| OKSBP | Southwest Bancorp Inc. | 24.80 | 24.49 | 24.80 | 2,500 | 0.65 | | 2.69 | 6 |
| OLBK | Old Line Bancshares Inc. | 7.150 | 7.110 | 7.150 | 300 | 0.110 | | 1.52 | 6 |
| OLCB | Ohio Legacy Corporation | 2.600 | 2.410 | 2.410 | 54,900 | 0.030 | | 1.23 | 6 |
| OMAB | Grupo Aeroportuario del Centro Norte | 15.44 | 14.92 | 15.21 | 68,800 | 0.16 | | 1.04 | 5 |
| OMCL | Omnicell Inc. | 14.99 | 14.77 | 14.91 | 49,400 | 0.10 | | 0.68 | 8 |
| OMER | OMEROS CORPORATION | 6.310 | 6.170 | 6.300 | 12,100 | 0.000 | | 0.00 | 4 |
| OMEX | Odyssey Marine Exploration Inc. | 1.530 | 1.420 | 1.500 | 704,900 | 0.060 | | 4.17 | 6 |
| OMNI | OMNI Energy Services Corp. | 1.700 | 1.570 | 1.690 | 98,500 | 0.100 | | 6.29 | 6 |
| OMPI | Obagi Medical Products Inc. | 11.94 | 11.76 | 11.89 | 51,500 | 0.07 | | 0.59 | 5 |
| ONAV | Omega Navigation Enterprises Inc. | 3.130 | 3.000 | 3.060 | 42,800 | 0.020 | | 0.66 | 4 |
| ONCY | Oncolytics Biotech Inc. | 3.410 | 3.240 | 3.310 | 279,100 | 0.180 | | 5.75 | 5 |
| ONEQ | Fidelity Nasdaq Composite Index Tracking | 93.22 | 92.57 | 93.12 | 44,600 | 0.81 | | 0.88 | 6 |
| ONFC | Oneida Financial Corp. | 9.230 | 9.190 | 9.230 | 1,200 | 0.120 | | 1.28 | 6 |
| ONNN | ON Semiconductor Corporation | 8.460 | 8.190 | 8.270 | 8,447,800 | 0.040 | | 0.49 | 5 |
| ONSM | Onstream Media Corporation | 0.3600 | 0.3400 | 0.3600 | 190,300 | 0.0200 | | 5.88 | 6 |
| ONTY | Oncothyreon Inc . | 5.100 | 4.950 | 4.980 | 84,700 | 0.010 | | 0.20 | 5 |
| ONVI | Onvia Inc. | 8.190 | 8.020 | 8.020 | 200 | 0.230 | | 2.79 | 6 |
| ONXX | ONYX Pharmaceuticals Inc. | 30.97 | 30.20 | 30.61 | 1,046,300 | 0.29 | | 0.96 | 7 |
| OPEN | Open Solutions, Inc. | 36.07 | 35.67 | 36.04 | 75,400 | 0.04 | | 0.11 | 5 |
| OPHC | OptimumBank Holdings Inc. | 1.130 | 1.120 | 1.130 | 700 | 0.000 | | 0.00 | 4 |
| OPLK | Oplink Communications Inc. | 16.85 | 16.58 | 16.75 | 260,100 | 0.18 | | 1.09 | 5 |
| OPMR | Optimal Group Inc. | 1.610 | 1.500 | 1.600 | 25,800 | 0.010 | | 0.62 | 5 |
| OPNT | OPNET Technologies Inc. | 15.20 | 14.49 | 14.99 | 99,900 | 0.20 | | 1.35 | 7 |
| OPOF | Old Point Financial Corporation | 14.84 | 14.84 | 14.84 | 100 | 0.04 | | 0.27 | 5 |
| OPTC | Optelecom-NKF Inc. | 2.750 | 2.600 | 2.750 | 6,200 | 0.110 | | 4.17 | 5 |
| OPTR | Optimer Pharmaceuticals Inc. | 13.66 | 13.52 | 13.65 | 112,700 | 0.09 | | 0.66 | 6 |
| OPTT | Ocean Power Technologies Inc. | 7.100 | 6.870 | 7.060 | 39,100 | 0.010 | | 0.14 | 4 |
| OPTV | OpenTV Corp. | 1.550 | 1.540 | 1.540 | 33,400 | 0.010 | | 0.65 | 7 |
| OPWV | Openwave Systems Inc | 2.750 | 2.690 | 2.720 | 543,800 | 0.020 | | 0.73 | 6 |
| OPXA | Opexa Therapeutics Inc. | 2.140 | 2.020 | 2.030 | 144,800 | 0.040 | | 2.01 | 6 |
| OPXAW | Opexa Therapeutics Inc. | 2.500 | 1.130 | 1.130 | 13,800 | 0.060 | | 5.04 | 6 |
| OPXT | Opnext Inc. | 2.490 | 2.210 | 2.390 | 1,045,100 | 0.180 | | 8.14 | 7 |
| ORBC | ORBCOMM Inc. | 2.440 | 2.400 | 2.430 | 14,200 | 0.020 | | 0.83 | 4 |
| ORBK | Orbotech Ltd. | 9.800 | 9.660 | 9.760 | 24,600 | 0.010 | | 0.10 | 5 |
| ORBT | Orbit International Corporation | 3.690 | 3.550 | 3.690 | 600 | 0.040 | | 1.10 | 4 |
| ORCC | Online Resources Corporation | 4.160 | 3.970 | 4.160 | 111,800 | 0.140 | | 3.48 | 5 |
| ORCD | Orchard Enterprises Inc (The) | 1.750 | 1.690 | 1.750 | 1,078,100 | 0.090 | | 5.42 | 7 |
| ORCH | Orchid Cellmark Inc. | 1.640 | 1.520 | 1.590 | 45,200 | 0.050 | | 3.25 | 6 |
| ORCL | Oracle Corporation | 25.02 | 24.68 | 24.87 | 23,095,900 | 0.01 | | 0.04 | 6 |
| ORCT | Orckit Communications | 5.190 | 4.810 | 5.140 | 127,200 | 0.330 | | 6.86 | 7 |
| OREX | Orexigen Therapeutics Inc. | 6.810 | 6.460 | 6.500 | 393,500 | 0.010 | | 0.15 | 5 |
| ORIT | Oritani Financial Corp. | 16.13 | 16.02 | 16.12 | 14,600 | 0.02 | | 0.12 | 5 |
| ORLY | O'Reilly Automotive Inc. | 40.40 | 39.62 | 40.26 | 1,354,000 | 0.52 | | 1.31 | 6 |
| ORNG | Orange 21 Inc. | 0.6900 | 0.6900 | 0.6900 | 100 | 0.0100 | | 1.43 | 5 |
| ORRF | ORRSTOWN FINL SVCS INC | 36.50 | 36.15 | 36.42 | 1,400 | 0.42 | | 1.17 | 4 |
| ORXE | Ore Pharmaceuticals Inc | 0.6400 | 0.6100 | 0.6400 | 9,900 | 0.0100 | | 1.59 | 5 |
| OSBC | Old Second Bancorp Inc. | 7.190 | 6.950 | 7.100 | 30,600 | 0.090 | | 1.25 | 5 |
| OSBCP | Old Second Bancorp Inc. | 7.260 | 7.100 | 7.260 | 4,800 | 0.360 | | 5.22 | 6 |
| OSBK | Osage Bancshares Inc. | 8.350 | 8.350 | 8.350 | 600 | 0.000 | | 0.00 | 6 |
| OSHC | Ocean Shore Holding Co. | 11.11 | 11.03 | 11.08 | 1,700 | 0.03 | | 0.27 | 5 |
| OSHCD | OCEAN SHORE HOLDING CO | 9.120 | 9.000 | 9.050 | 28,400 | 0.120 | | 1.31 | 7 |
| OSIP | OSI Pharmaceuticals Inc. | 57.84 | 56.80 | 57.75 | 2,072,200 | 0.75 | | 1.32 | 7 |
| OSIR | Osiris Therapeutics Inc. | 7.860 | 7.480 | 7.800 | 104,900 | 0.300 | | 4.00 | 7 |
| OSIS | OSI Systems Inc. | 31.69 | 31.00 | 31.54 | 136,100 | 0.08 | | 0.25 | 7 |
| OSTE | Osteotech Inc. | 4.070 | 3.940 | 4.060 | 47,300 | 0.030 | | 0.73 | 6 |
| OSTK | Overstock.com Inc. | 14.59 | 14.13 | 14.34 | 151,000 | 0.25 | | 1.71 | 4 |
| OSUR | OraSure Technologies Inc. | 5.380 | 5.240 | 5.280 | 173,400 | 0.070 | | 1.31 | 6 |
| OTEX | Open Text Corporation | 48.57 | 47.58 | 48.52 | 101,200 | 0.79 | | 1.66 | 6 |
| OTIV | On Track Innovations Ltd | 2.260 | 2.110 | 2.230 | 166,300 | 0.020 | | 0.89 | 6 |
| OTIX | OTIX GLOBAL INC | 0.8900 | 0.8700 | 0.8900 | 2,800 | 0.0100 | | 1.11 | 6 |
| OTT | Otelco Inc. | 16.87 | 16.48 | 16.87 | 72,100 | 0.17 | | 1.02 | 7 |
| OTTR | Otter Tail Corporation | 21.94 | 21.39 | 21.91 | 256,700 | 0.56 | | 2.62 | 5 |
| OUTD | Outdoor Channel Holdings Inc. | 6.360 | 6.270 | 6.300 | 15,300 | 0.050 | | 0.79 | 5 |
| OVBC | Ohio Valley Banc Corp. | 24.99 | 24.58 | 24.99 | 2,600 | 0.01 | | 0.04 | 4 |
| OVLY | OAK VALLEY BANCORP | 4.450 | 4.450 | 4.450 | 100 | 0.050 | | 1.11 | 7 |
| OVRL | Overland Storage Inc. | 2.210 | 2.050 | 2.080 | 12,100 | 0.010 | | 0.48 | 7 |
| OVRLD | OVERLAND STORAGE INC | 2.390 | 2.210 | 2.260 | 5,400 | 0.060 | | 2.59 | 8 |
| OVTI | OmniVision Technologies Inc. | 16.88 | 16.12 | 16.84 | 1,873,600 | 0.70 | | 4.34 | 6 |
| OXBT | OXYGEN BIOTHERAPEUTC | 5.000 | 4.750 | 5.000 | 31,100 | 0.230 | | 4.82 | 4 |
| OXGN | OXiGENE Inc. | 1.290 | 1.190 | 1.270 | 143,400 | 0.060 | | 4.96 | 5 |
| OXPS | optionsXpress Holdings Inc. | 17.29 | 16.62 | 16.95 | 367,400 | 0.18 | | 1.07 | 5 |
| OYOG | OYO Geospace Corporation | 50.00 | 47.02 | 49.49 | 35,100 | 0.23 | | 0.46 | 5 |
| OZRK | Bank of the Ozarks | 32.86 | 31.77 | 32.59 | 53,400 | 0.41 | | 1.27 | 6 |