Stock Symbols

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Symbol Company Name Exchange
O Realty Income REIT NYSE
OABC OmniAmerican Bancorp, Inc. NASD
OB OneBeacon Insurance Group Ltd NYSE
OBAF OBA Financial Services, Inc. NASD
OBAS Optibase Ltd NASD
OBCI Ocean Bio-Chem Inc NASD
OC Owens Corning NYSE
OCCF Optical Cable Corp NASD
OCFC OceanFirst Financial Corp NASD
OCLR Oclaro Inc NASD
OCLS Oculus Innovative Sciences Inc NASD
OCN Ocwen Financial Corp NYSE
OCNF Oceanfreight Inc NASD
OCNW Occam Networks Inc NASD
OCR Omnicare Inc NYSE
OCZ OCZ Technology Group Inc NASD
ODC Oil-Dri Corp of America NYSE
ODFL Old Dominion Freight Line Inc NASD
ODP Office Depot Inc NYSE
ODSY Odyssey Healthcare Inc NASD
ODY AMEX
OEF AMEX
OEH Orient Express Hotels Ltd NYSE
OESX Orion Energy Systems Inc NASD
OFC Corporate Office Properties Trust REIT NYSE
OFG Oriental Financial Group Inc NYSE
OFI Overhill Farms Inc AMEX
OFIX Orthofix International NV NASD
OFLX Omega Flex Inc NASD
OGE OGE Energy Corp NYSE
OGXI OncoGenex Pharmaceuticals Inc NASD
OHB Orleans Homebuilders Inc AMEX
OHI Omega Healthcare REIT NYSE
OI Owens Illinois Inc NYSE
OIA Morgan Stanley Muni Income Opportunities Trust NYSE
OIB Morgan Stanley Muni Income Opportunities Trust II NYSE
OIC Morgan Stanley Muni Income Opportunities Trust III NYSE
OICO OI Corp NASD
OIH AMEX
OII Oceaneering International Inc NYSE
OIIM O2Micro International Ltd NASD
OIL AMEX
OIS Oil States International Inc NYSE
OKE Oneok Inc NYSE
OKS ONEOK PARTNERS LP NYSE
OKSB Southwest Bancorp Inc NASD
OKSBP Southwest Capital Trust II NASD
OLA Old Mutual/Claymore Long-Short Fund NYSE
OLBK Old Line Bancshares, Inc. NASD
OLCB Ohio Legacy Corp NASD
OLN Olin Corp NYSE
OLO AMEX
OLP One Liberty Properties Inc NYSE
OMAB Grupo Aeroportuario del Centro Norte ADR NASD
OMC Omnicom Group Inc NYSE
OMCL Omnicell Inc NASD
OME Omega Protein Corp NYSE
OMER Omeros Corporation NASD
OMEX Odyssey Marine Exploration Inc NASD
OMG OM Group Inc NYSE
OMI Owens & Minor Inc NYSE
OMN OMNOVA Solutions Inc NYSE
OMNI OMNI Energy Services Corp NASD
OMPI Obagi Medical Products?Inc NASD
OMTR Omniture Inc NASD
OMX OfficeMax Inc NYSE
ONAV Omega Navigation Enterprises Inc NASD
ONB Old National Bancorp NYSE
ONCY Oncolytics Biotech Inc NASD
ONEQ NASD
ONFC Oneida Financial Corp NASD
ONNN ON Semiconductor Corp NASD
ONP Orient Paper, Inc. AMEX
ONSM Onstream Media Corp NASD
ONSMD Onstream Media Corporation NASD
ONT On2 Technologies Inc AMEX
ONTY Oncothyreon Inc NASD
ONVI Onvia Inc NASD
ONXX Onyx Pharmaceuticals Inc NASD
OPEN OpenTable Inc NASD
OPHC OptimumBank Holdings, Inc. NASD
OPK Opko Health Inc AMEX
OPLK Oplink Communications Inc NASD
OPMR Optimal Group Inc NASD
OPNT Opnet Technologies inc NASD
OPOF Old Point Financial Corp NASD
OPTC Optelecom-NKF Inc NASD
OPTR Optimer Pharmaceuticals Inc NASD
OPTT Ocean Power Technologies Inc NASD
OPTV OpenTV Corp NASD
OPWV Openwave Systems Inc NASD
OPXA Opexa Therapeutics Inc NASD
OPXAW Opexa Therapeutics, Inc. NASD
OPXT Opnext Inc NASD
OPY Oppenheimer Holdings Inc NYSE
ORA Ormat Technologies Inc NYSE
ORB Orbital Sciences Corp NYSE
ORBC ORBCOMM Inc NASD
ORBK Orbotech Ltd NASD
ORBT Orbit International Corp NASD
ORCC Online Resources Corp NASD
ORCD Orchard Enterprises Inc NASD
ORCH Orchid Cellmark Inc NASD
ORCL Oracle Corp NASD
ORCT Orckit Communications Ltd NASD
OREX Orexigen Therapeutics Inc NASD
ORH Odyssey Re Holdings Corp NYSE
ORI Old Republic International Corp NYSE
ORIT Oritani Financial Corp NASD
ORLY O'Reilly Automotive Inc NASD
ORN Orion Marine Group Inc NYSE
ORRF Orrstown Financial Services Inc NASD
ORS Orsus Xelent Technolgies Inc AMEX
ORXE Ore Pharmaceuticals Inc NASD
OSBC Old Second Bancorp Inc NASD
OSBCP Old Second Capital Trust I NASD
OSG Overseas Shipholding Group Inc NYSE
OSHC Ocean Shore Holding Co NASD
OSIP OSI Pharmaceuticals Inc NASD
OSIR Osiris Therapeutics Inc NASD
OSIS OSI Systems Inc NASD
OSK Oshkosh Corp NYSE
OSM NYSE
OSP OSG America L P NYSE
OSTE Osteotech Inc NASD
OSTK Overstock.com Inc NASD
OSUR OraSure Technologies Inc NASD
OTE Hellenic Telecom Depository Receipt NYSE
OTEX Open Text Corp NASD
OTIV OTI ON TRACK INNOVATIONS LTD NASD
OTIX Otix Global Inc NASD
OTIXD OTIX Global, Inc NASD
OTP AMEX
OTT NASD
OTTR Otter Tail Corp NASD
OUTD Outdoor Channel Holdings Inc NASD
OVBC Ohio Valley Banc Corp NASD
OVIP Open Joint Stock Company "Vimpel-Communications" NYSE
OVLY Oak Valley Bancorp NASD
OVRL Overland Storage Inc NASD
OVTI OmniVision Technologies Inc NASD
OWW Orbitz Worldwide Inc NYSE
OXBT Oxygen Biotherapeutics, Inc. NASD
OXGN Oxigene Inc NASD
OXM Oxford Industries Inc NYSE
OXPS optionsXpress Holdings Inc NASD
OXY Occidental Petroleum Corp NYSE
OYOG OYO Geospace Corp NASD
OZM Och Ziff Capital Management Group NYSE
OZRK Bank of the Ozarks Inc NASD