Search alphabetically by company name:
| O'BRIEN ENERGY | First Trade Date | 07/25/1986 |
| O'CHARLEY'S | First Trade Date | 07/19/1990 |
| O'GARA CO | First Trade Date | 11/13/1996 |
| O'GARA CO | First Trade Date | 11/06/1996 |
| O'REILLY AUTOMOTIVE | First Trade Date | 04/23/1993 |
| O'SULLIVAN INDUST | First Trade Date | 01/28/1994 |
| O-PETRO ENERGY | First Trade Date | 06/09/1982 |
| O.G. CONSULTING | First Trade Date | 04/11/1984 |
| O2MICRO INTERNATIONAL LIMITED | First Trade Date | 08/23/2000 |
| OAK HILL FINC | First Trade Date | 10/12/1995 |
| OAK STREET HEALTH, INC. (OSH) | First Trade Date | 08/06/2020 |
| OAK TECH | First Trade Date | 02/14/1995 |
| OAKTREE ACQUISITION CORP. (OAC'U) | First Trade Date | 07/18/2019 |
| OAKTREE ACQUISITION CORP. II (OACBU) | First Trade Date | 09/17/2020 |
| OAKTREE CAPITAL GROUP, LLC (OAK) | First Trade Date | 04/12/2012 |
| OAKWOOD HOMES | First Trade Date | 09/30/1986 |
| OAO TECH SOLS | First Trade Date | 10/22/1997 |
| OASIS MIDSTREAM PARTNERS LP (OMP) | First Trade Date | 09/21/2017 |
| OASIS PETROLEUM LLC (OAS) | First Trade Date | 06/17/2010 |
| OASMIA PHARMACEUTICAL AB (OASM) | First Trade Date | 10/23/2015 |
| OATLY GROUP AB (OTLY) | First Trade Date | 05/20/2021 |
| OBAGI MEDICAL PRODUCTS, INC. (OMPI) | First Trade Date | 12/14/2006 |
| OBALON THERAPEUTICS INC (OBLN) | First Trade Date | 10/06/2016 |
| OBIE MEDIA | First Trade Date | 11/21/1996 |
| OBJEC DESIGN | First Trade Date | 07/23/1996 |
| OBJECT RECOGNITION | First Trade Date | 03/20/1981 |
| OBJECTIVE COMM | First Trade Date | 04/03/1997 |
| OBJECTIVE SYS | First Trade Date | 12/01/1995 |
| OBJECTSOFT | First Trade Date | 11/12/1996 |
| OBSEVA SA (OBSV) | First Trade Date | 01/26/2017 |
| OCA ACQUISITION CORP. (OCAXU) | First Trade Date | 01/15/2021 |
| OCCIDENTAL PETRO | First Trade Date | 03/03/1964 |
| OCCULOGIX, INC. (OCCX) | First Trade Date | 12/09/2004 |
| OCCUPATIONAL-URGENT | First Trade Date | 06/29/1984 |
| OCE | First Trade Date | 11/01/1984 |
| OCE-VAN DER GRINTEN | First Trade Date | 11/01/1984 |
| OCEAN ENG | First Trade Date | 12/17/1991 |
| OCEANEERING INTERNATL | First Trade Date | 11/03/1975 |
| OCEANFIRST FINC | First Trade Date | 07/03/1996 |
| OCEANFREIGHT INC. (OCNF) | First Trade Date | 04/25/2007 |
| OCEANTECH ACQUISITIONS I CORP. (OTECU) | First Trade Date | 05/28/2021 |
| OCH-ZIFF CAPITAL MANAGEMENT GROUP LLC (OZM) | First Trade Date | 11/14/2007 |
| OCI PARTNERS LP (OCIP) | First Trade Date | 10/04/2013 |
| OCI RESOURCES LP (OCIR) | First Trade Date | 09/13/2013 |
| OCILLA INDUSTRIES | First Trade Date | 06/18/1981 |
| OCTET CORP (NYSE S/O) | First Trade Date | 05/13/1998 |
| OCULAR SCIENCES, INC. | First Trade Date | 08/05/1997 |
| OCULAR THERAPEUTIX, INC (OCUL) | First Trade Date | 07/25/2014 |
| OCULUS INNOVATIVE SCIENCES, INC. (OCLS) | First Trade Date | 01/25/2007 |
| OCUREST LAB | First Trade Date | 11/13/1996 |
| OCWEN ASSET MGT (NYSE TR) | First Trade Date | 05/01/1998 |
| OCWEN FINANCIAL (NYSE TR) | First Trade Date | 08/01/1997 |
| OCWEN FINANCIAL CORPORATION | First Trade Date | 09/25/1996 |
| ODD JOB STORES, INC. | First Trade Date | 11/21/1996 |
| ODETICS | First Trade Date | 07/14/1981 |
| ODETICS | First Trade Date | 01/04/1994 |
| ODONATE THERAPEUTICS, INC. (ODT) | First Trade Date | 12/07/2017 |
| ODS NETWORKS | First Trade Date | 05/21/1992 |
| ODWALLA | First Trade Date | 12/16/1993 |
| ODYSSEY HEALTHCARE, INC. | First Trade Date | 10/31/2001 |
| ODYSSEY RE HOLDINGS CORP. | First Trade Date | 06/14/2001 |
| OEA INC | First Trade Date | 01/04/1991 |
| OFFICE DEPOT | First Trade Date | 12/11/1991 |
| OFFICE SOLUTIONS | First Trade Date | 07/27/1983 |
| OFFICIAL PAYMENTS | First Trade Date | 11/23/1999 |
| OFFSHORE ENERGY | First Trade Date | 11/01/1996 |
| OFFSHORE LOGISTICS | First Trade Date | 12/01/1971 |
| OHIO LEGACY CORP | First Trade Date | 12/19/2002 |
| OHIO VALLEY BANC | First Trade Date | 02/09/1996 |
| OHM | First Trade Date | 09/30/1986 |
| OI CORP | First Trade Date | 09/13/1978 |
| OIL BASE | First Trade Date | 09/21/1978 |
| OIL CITY PETROLEUM | First Trade Date | 03/15/1979 |
| OIL INTERNATIONAL | First Trade Date | 05/21/1979 |
| OIL MOP | First Trade Date | 05/21/1981 |
| OIL PRODUCERS | First Trade Date | 01/27/1982 |
| OIL STATES INTERNATIONAL, INC. | First Trade Date | 02/09/2001 |
| OILTANKING PARTNERS, L.P. (OILT) | First Trade Date | 07/14/2011 |
| OKLAHOMA ENERGIES | First Trade Date | 09/03/1980 |
| OKLAHOMA GASAHOL | First Trade Date | 08/04/1980 |
| OKTA, INC. (OKTA) | First Trade Date | 04/07/2017 |
| OLD DOMINION FREIGHT | First Trade Date | 10/24/1991 |
| OLD FASHION FOODS | First Trade Date | 08/16/1983 |
| OLD GUARD GROUP | First Trade Date | 02/18/1997 |
| OLD NATIONAL BANC | First Trade Date | 06/04/1984 |
| OLD POINT FINC | First Trade Date | 04/25/2000 |
| OLD SECOND BANC | First Trade Date | 11/11/1993 |
| OLEMA PHARMACEUTICALS, INC. (OLMA) | First Trade Date | 11/19/2020 |
| OLINK HOLDING AB (PUBL) (OLK) | First Trade Date | 03/25/2021 |
| OLIVIER MANAGEMENT | First Trade Date | 07/27/1983 |
| OLLIE'S BARGAIN OUTLET HOLDINGS, INC. (OLLI) | First Trade Date | 07/16/2015 |
| OLO INC. (OLO) | First Trade Date | 03/17/2021 |
| OLYMPIC CASCADE | First Trade Date | 06/23/1987 |
| OLYMPIC NAT'L BANCORP | First Trade Date | 10/05/1983 |
| OLYMPIC STEEL | First Trade Date | 03/10/1994 |
| OM ASSET MANAGEMENT PLC (OMAM) | First Trade Date | 10/09/2014 |
| OM GROUP | First Trade Date | 12/05/1996 |
| OMEGA ALPHA SPAC (OMEG) | First Trade Date | 01/07/2021 |
| OMEGA FINANCIAL | First Trade Date | 04/07/1992 |
| OMEGA NAVIGATION ENTERPRISES, INC. (ONAV) | First Trade Date | 04/07/2006 |
| OMEGA OPTICAL | First Trade Date | 01/25/1977 |
| OMEGA ORTHODONTICS | First Trade Date | 10/01/1997 |
| OMEGA PROTEIN (NYSE C/O) | First Trade Date | 04/03/1998 |
| OMEGA RESEARCH | First Trade Date | 10/01/1997 |
| OMEGA WORLDWIDE | First Trade Date | 04/08/1998 |
| OMEROS CORPORATION (OMER) | First Trade Date | 10/08/2009 |
| OMNI ENERGY SERVICES CORP. | First Trade Date | 12/05/1997 |
| OMNI FINANCIAL SERVICES, INC. (OFSI) | First Trade Date | 09/29/2006 |
| OMNI NUTRACEUTICALS | First Trade Date | 07/16/1996 |
| OMNI USA | First Trade Date | 08/13/1991 |
| OMNICARE | First Trade Date | 07/16/1981 |
| OMNICELL, INC. | First Trade Date | 08/07/2001 |
| OMNICHANNEL ACQUISITION CORP. (OCA'U) | First Trade Date | 11/20/2020 |
| OMNIDENTIX | First Trade Date | 10/22/1981 |
| OMNIMEDICAL | First Trade Date | 07/19/1976 |
| OMNIQUIP INTL | First Trade Date | 03/24/1997 |
| OMNIQUIP INTL | First Trade Date | 03/21/1997 |
| OMNITRONICS | First Trade Date | 04/03/1981 |
| OMNITURE, INC. (OMTR) | First Trade Date | 06/28/2006 |
| OMNIVISION TECHNOLOGIES, INC. | First Trade Date | 07/14/2000 |
| OMRIX BIOPHARMACEUTICALS, INC. (OMRI) | First Trade Date | 04/21/2006 |
| OMTHERA PHARMACEUTICALS, INC. (OMTH) | First Trade Date | 04/11/2013 |
| OMTOOL, LTD. | First Trade Date | 08/08/1997 |
| OMX CORPORATION | First Trade Date | 08/26/1983 |
| ON ASSIGNMENT | First Trade Date | 09/22/1992 |
| ON COMMAND | First Trade Date | 10/18/1996 |
| ON COMMAND | First Trade Date | 10/10/1996 |
| ON COMMAND | First Trade Date | 01/02/1997 |
| ON DECK CAPITAL INC (ONDK) | First Trade Date | 12/17/2014 |
| ON LINE SOFTWARE | First Trade Date | 09/29/1982 |
| ON SEMICONDUCTOR CORPORATION | First Trade Date | 04/28/2000 |
| ON TECHNOLOGY | First Trade Date | 08/01/1995 |
| ON-POINT TECH | First Trade Date | 06/25/1993 |
| ON-SITE SOURCING | First Trade Date | 08/19/1996 |
| ON-SITE SOURCING | First Trade Date | 07/11/1996 |
| ON24 INC. (ONTF) | First Trade Date | 02/03/2021 |
| ONCOBIOLOGICS, INC. (ONSIU) | First Trade Date | 05/13/2016 |
| ONCOGENE | First Trade Date | 04/03/1986 |
| ONCOMED PHARMACEUTICALS INC (OMED) | First Trade Date | 07/18/2013 |
| ONCONOVA THERAPEUTICS, INC. (ONTX) | First Trade Date | 07/25/2013 |
| ONCORUS, INC. (ONCR) | First Trade Date | 10/02/2020 |
| ONCOTHERM CORP. | First Trade Date | 05/02/1984 |
| ONDISPLAY | First Trade Date | 12/17/1999 |
| ONE (AONEU) | First Trade Date | 08/18/2020 |
| ONE BANCORP | First Trade Date | 06/05/1984 |
| ONE EQUITY PARTNERS OPEN WATER I CORP. (OEPWU) | First Trade Date | 01/22/2021 |
| ONE MADISON CORPORATION (OMADU) | First Trade Date | 01/18/2018 |
| ONE PRICE CLOTHING | First Trade Date | 05/19/1987 |
| ONE STOP SYSTEMS INC (OSS) | First Trade Date | 02/01/2018 |
| ONE VALLEY BANC (NYSE TR) | First Trade Date | 05/22/1997 |
| ONE WAVE | First Trade Date | 07/03/1996 |
| ONEBEACON INSURANCE GROUP, LTD. (OB) | First Trade Date | 11/09/2006 |
| ONECONNECT FINANCIAL TECHNOLOGY CO., LTD. (OCFT) | First Trade Date | 12/13/2019 |
| ONECONNECT FINANCIAL TECHNOLOGY CO., LTD. (OCFT) | First Trade Date | 12/13/2019 |
| ONEIDA FINANCIAL CORP. | First Trade Date | 12/30/1998 |
| ONEMAIN COM | First Trade Date | 03/25/1999 |
| ONESMART INTERNATIONAL EDUCATION GROUP LTD (ONE) | First Trade Date | 03/28/2018 |
| ONESOURCE INFO | First Trade Date | 05/19/1999 |
| ONEWATER MARINE INC. (ONEW) | First Trade Date | 02/07/2020 |
| ONHEALTH NETWORK | First Trade Date | 10/06/1993 |
| ONI SYS | First Trade Date | 06/01/2000 |
| ONION GLOBAL LIMITED (OG) | First Trade Date | 05/07/2021 |
| ONIX SYS | First Trade Date | 03/25/1998 |
| ONLINE RESOURCES CORPORATION | First Trade Date | 06/04/1999 |
| ONLINETRADING.COM | First Trade Date | 06/11/1999 |
| ONSALE INC | First Trade Date | 04/17/1997 |
| ONSTAGE ENTER | First Trade Date | 08/14/1997 |
| ONTRACK DATA | First Trade Date | 10/22/1996 |
| ONTRO | First Trade Date | 05/12/1998 |
| ONVIA.COM, INC. | First Trade Date | 03/01/2000 |
| ONYX ACCEPTANCE | First Trade Date | 03/26/1996 |
| ONYX PHARMA | First Trade Date | 05/09/1996 |
| ONYX SOFTWARE CORPORATION | First Trade Date | 02/12/1999 |
| OOMA INC (OOMA) | First Trade Date | 07/17/2015 |
| OP BANCORP (OPBK) | First Trade Date | 03/28/2018 |
| OPEN MARKET | First Trade Date | 05/23/1996 |
| OPEN PLAN SYSTEMS | First Trade Date | 05/31/1996 |
| OPEN SOLUTIONS INC. | First Trade Date | 11/26/2003 |
| OPEN SYSTEMS | First Trade Date | 01/24/1996 |
| OPEN TEXT | First Trade Date | 01/24/1996 |
| OPENTABLE, INC. (OPEN) | First Trade Date | 05/21/2009 |
| OPENTV CORP. | First Trade Date | 11/23/1999 |
| OPENVISION TECH | First Trade Date | 05/07/1996 |
| OPENWAVE SYSTEMS INC. | First Trade Date | 06/11/1999 |
| OPERA LIMITED (OPRA) | First Trade Date | 07/27/2018 |
| OPES ACQUISITION CORP. (OPESU) | First Trade Date | 03/14/2018 |
| OPGEN INC (OPGN) | First Trade Date | 05/05/2015 |
| OPHIDIAN PHARMA | First Trade Date | 06/15/1998 |
| OPHIDIAN PHARMA | First Trade Date | 06/12/1998 |
| OPHIDIAN PHARMA | First Trade Date | 05/07/1998 |
| OPHTHOTECH CORP. (OPHT) | First Trade Date | 09/25/2013 |
| OPLINK COMMUNICATIONS, INC. | First Trade Date | 10/04/2000 |
| OPNET TECHNOLOGIES, INC. | First Trade Date | 08/02/2000 |
| OPNEXT, INC. (OPXT) | First Trade Date | 02/15/2007 |
| OPORTUN FINANCIAL CORPORATION (OPRT) | First Trade Date | 09/26/2019 |
| OPOWER, INC. (OPWR) | First Trade Date | 04/04/2014 |
| OPSWARE INC. | First Trade Date | 03/09/2001 |
| OPTA FOOD | First Trade Date | 03/04/1992 |
| OPTELECOM | First Trade Date | 12/21/1978 |
| OPTELECOM | First Trade Date | 12/15/1978 |
| OPTEUM INC. (OPX) | First Trade Date | 09/21/2004 |
| OPTHALMIC INTERNATL | First Trade Date | 08/11/1982 |
| OPTHEA LIMITED (OPT) | First Trade Date | 10/16/2020 |
| OPTI | First Trade Date | 05/13/1993 |
| OPTIBASE | First Trade Date | 04/07/1999 |
| OPTIBASE LTD. | First Trade Date | 04/01/1999 |
| OPTICAL CABLE | First Trade Date | 04/02/1996 |
| OPTICAL COMMUNICATION PRODUCTS, INC. | First Trade Date | 11/03/2000 |
| OPTICAL SENSORS | First Trade Date | 02/14/1996 |
| OPTICAL SPECIALITIES | First Trade Date | 12/18/1984 |
| OPTIKA IMAGING | First Trade Date | 07/26/1996 |
| OPTIMAL ROBOTICS | First Trade Date | 10/25/1996 |
| OPTIMER PHARMACEUTICALS, INC. (OPTR) | First Trade Date | 02/09/2007 |
| OPTIMUM HOLDING | First Trade Date | 07/16/1980 |
| OPTINOSE, INC. (OPTN) | First Trade Date | 10/13/2017 |
| OPTIO SOFTWARE | First Trade Date | 12/15/1999 |
| OPTION CARE | First Trade Date | 04/15/1992 |
| OPTIONSXPRESS HOLDINGS, INC. (OXPS) | First Trade Date | 01/27/2005 |
| OPTISYSTEMS SOLS | First Trade Date | 06/12/1997 |
| OPTIUM CORPORATION (OPTM) | First Trade Date | 10/27/2006 |
| OPTROTECH LTD. | First Trade Date | 08/09/1984 |
| OPUS360 | First Trade Date | 04/07/2000 |
| ORACLE | First Trade Date | 03/12/1986 |
| ORALABS HOLDING | First Trade Date | 04/29/1998 |
| ORANGE 21 INC. (ORNG) | First Trade Date | 12/14/2004 |
| ORANGE BANCORP | First Trade Date | 09/29/1982 |
| ORAPHARMA | First Trade Date | 03/09/2000 |
| ORATEC | First Trade Date | 04/05/2000 |
| ORBCOMM INC. (ORBC) | First Trade Date | 11/03/2006 |
| ORBIT INTL | First Trade Date | 04/27/1971 |
| ORBIT/FR | First Trade Date | 06/17/1997 |
| ORBITAL | First Trade Date | 12/05/1991 |
| ORBITAL SCIENCES | First Trade Date | 04/23/1990 |
| ORBITAL SCIENCES (NYSE TR) | First Trade Date | 07/10/1998 |
| ORBITZ WORLDWIDE, INC. (OWW) | First Trade Date | 07/20/2007 |
| ORBITZ, INC. | First Trade Date | 12/17/2003 |
| ORCAD INC | First Trade Date | 03/01/1996 |
| ORCHARD THERAPEUTICS PLC (ORTX) | First Trade Date | 10/31/2018 |
| ORCHID BIOSCIENCES, INC. | First Trade Date | 05/05/2000 |
| ORCHID ISLAND CAPITAL, INC. (ORC) | First Trade Date | 02/14/2013 |
| ORCHIDS PAPER PRODUCTS COMPANY (TIS) | First Trade Date | 07/18/2005 |
| ORCHIT COMM | First Trade Date | 09/27/1996 |
| OREGON METAL | First Trade Date | 06/12/1974 |
| OREGON STEEL | First Trade Date | 04/12/1988 |
| OREGON TRAIL | First Trade Date | 10/06/1997 |
| OREXIGEN THERAPEUTICS INC. (OREX) | First Trade Date | 04/26/2007 |
| ORGANIC | First Trade Date | 02/10/2000 |
| ORGANIC FOOD PRODS | First Trade Date | 08/12/1997 |
| ORIC PHARMACEUTICALS, INC. (ORIC) | First Trade Date | 04/24/2020 |
| ORIENT-EXPRESS HOTELS LTD. | First Trade Date | 08/10/2000 |
| ORIENTAL CULTURE HOLDING LTD (OCG) | First Trade Date | 12/15/2020 |
| ORIGEN FINANCIAL, INC. (ORGN) | First Trade Date | 05/06/2004 |
| ORIGIN BANCORP, INC. (OBNK) | First Trade Date | 05/09/2018 |
| ORIGINAL CMPTR. CAMP | First Trade Date | 02/07/1984 |
| ORION ACQUISITION CORP. (OHPAU) | First Trade Date | 03/02/2021 |
| ORION BIOTECH OPPORTUNITIES CORP. (ORIAU) | First Trade Date | 05/13/2021 |
| ORION BROADCAST | First Trade Date | 04/04/1983 |
| ORION ENERGY SYSTEMS, INC. (OESX) | First Trade Date | 12/19/2007 |
| ORION ENGINEERED CARBONS S.A. (OEC) | First Trade Date | 07/25/2014 |
| ORISUN ACQUISITION CORP. (ORSNU) | First Trade Date | 08/02/2019 |
| ORIX | First Trade Date | 09/16/1998 |
| ORLANDO PREDATORS | First Trade Date | 12/11/1997 |
| ORMAT TECHNOLOGIES, INC. (ORA) | First Trade Date | 11/11/2004 |
| OROAMERICA | First Trade Date | 09/23/1993 |
| ORPHAN MEDICAL | First Trade Date | 10/12/1994 |
| ORPHAZYME A/S (ORPH) | First Trade Date | 09/29/2020 |
| ORTEC INTL | First Trade Date | 05/17/1996 |
| ORTHALLIANCE | First Trade Date | 08/21/1997 |
| ORTHO CLINICAL DIAGNOSTICS HOLDINGS PLC (OCDX) | First Trade Date | 01/28/2021 |
| ORTHODONTIC CTRS (NYSE TR) | First Trade Date | 10/20/1997 |
| ORTHOFIX INTL | First Trade Date | 04/24/1992 |
| ORTHOLOGIC | First Trade Date | 01/28/1993 |
| ORTHOMOLECULAR NUTR'N | First Trade Date | 08/04/1981 |
| ORTHOPEDIATRICS CORP (KIDS) | First Trade Date | 10/12/2017 |
| ORYX COMMUNICATIONS | First Trade Date | 06/30/1981 |
| ORYX ENERGY | First Trade Date | 11/01/1988 |
| ORYX TECH | First Trade Date | 04/06/1994 |
| OSAGE ENERGY | First Trade Date | 04/13/1983 |
| OSCA | First Trade Date | 06/14/2000 |
| OSCAR HEALTH, INC. (OSCR) | First Trade Date | 03/03/2021 |
| OSG AMERICA L.P. (OSP) | First Trade Date | 11/09/2007 |
| OSHKOSH B'GOSH | First Trade Date | 05/02/1985 |
| OSHKOSH TRUCK | First Trade Date | 10/02/1985 |
| OSI PHARMA | First Trade Date | 04/03/1986 |
| OSI SYSTEMS, INC. | First Trade Date | 10/02/1997 |
| OSICOM TECH | First Trade Date | 11/08/1994 |
| OSIRIS ACQUISITION CORP. (OSI'U) | First Trade Date | 05/14/2021 |
| OSIRIS THERAPEUTICS, INC. (OSIR) | First Trade Date | 08/04/2006 |
| OSMOTICA PHARMACEUTICALS PUBLIC LIMITED COMPANY (OSMT) | First Trade Date | 10/18/2018 |
| OSPREY ENERGY ACQUISITION CORP (OSPRU) | First Trade Date | 07/21/2017 |
| OSPREY TECHNOLOGY ACQUISITION CORP. (SFTWU) | First Trade Date | 11/01/2019 |
| OSTEOTECH | First Trade Date | 06/21/1991 |
| OSTEX INTL | First Trade Date | 01/25/1995 |
| OTELCO INC. (OTT) | First Trade Date | 12/16/2004 |
| OTG SOFT | First Trade Date | 03/10/2000 |
| OTISVILLE BIOTECH | First Trade Date | 02/17/1984 |
| OTONOMY, INC. (OTIC) | First Trade Date | 08/13/2014 |
| OTR ACQUISITION CORP. (OTRAU) | First Trade Date | 11/17/2020 |
| OTTAWA FINANCIAL | First Trade Date | 08/19/1994 |
| OUTBACK OIL & MINERAL | First Trade Date | 07/28/1981 |
| OUTBACK STEAKHOUSE | First Trade Date | 06/18/1991 |
| OUTBACK STEAKHOUSE (NYSE TR) | First Trade Date | 06/15/2000 |
| OUTBOARD MARINE | First Trade Date | 01/25/1937 |
| OUTDOOR SYSTEMS | First Trade Date | 05/02/1997 |
| OUTDOOR SYSTEMS | First Trade Date | 04/25/1996 |
| OUTDOOR SYSTEMS (NYSE TR) | First Trade Date | 09/02/1997 |
| OUTLOOK GROUP | First Trade Date | 04/24/1991 |
| OUTLOOK SPORTS TECH | First Trade Date | 03/18/1999 |
| OUTSET MEDICAL, INC. (OM) | First Trade Date | 09/15/2020 |
| OUTSOURCE INTL | First Trade Date | 10/24/1997 |
| OVERLAND DATA | First Trade Date | 02/21/1997 |
| OVERLAND EXPRESS | First Trade Date | 05/05/1983 |
| OVERLAND STORAGE, INC. | First Trade Date | 02/21/1997 |
| OVERNITE CORPORATION | First Trade Date | 10/31/2003 |
| OVERSTOCK.COM, INC. | First Trade Date | 05/30/2002 |
| OVERTHRUST OIL | First Trade Date | 06/10/1982 |
| OVERTHRUST RESOURCES | First Trade Date | 07/29/1981 |
| OVID THERAPEUTICS INC. (OVID) | First Trade Date | 05/05/2017 |
| OWEN HEALTHCARE | First Trade Date | 05/24/1996 |
| OWENS CORNING | First Trade Date | 03/11/1952 |
| OWENS ILLINOIS | First Trade Date | 12/04/1991 |
| OWL CAPITAL CORP. | First Trade Date | 03/14/1984 |
| OWOSSO | First Trade Date | 10/25/1994 |
| OXBORO MEDICAL | First Trade Date | 03/11/1991 |
| OXBRIDGE RE HOLDINGS LTD (OXBRU) | First Trade Date | 03/28/2014 |
| OXFORD HEALTH PLANS | First Trade Date | 08/07/1991 |
| OXFORD IMMUNOTEC GLOBAL PLC (OXFD) | First Trade Date | 11/22/2013 |
| OXFORD RESOURCE PARTNERS, LP (OXF) | First Trade Date | 07/14/2010 |
| OXIGENE | First Trade Date | 08/26/1993 |
| OXYGEN ENRICHMENT | First Trade Date | 09/23/1980 |
| OYO GEOSPACE CORPORATION | First Trade Date | 11/21/1997 |
| OYSTER ENTERPRISES ACQUISITION CORP. (OSTRU) | First Trade Date | 01/20/2021 |
| OYSTER POINT PHARMA, INC. (OYST) | First Trade Date | 10/31/2019 |
| OZON HOLDINGS PLC (OZON) | First Trade Date | 11/24/2020 |
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