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O''Reilly Automotive, Inc.ORLY
O2Micro International LimitedOIIM
Oak Valley Bancorp (CA)OVLY
Oaktree Capital GroupOAK
Oasis Petroleum Inc.OAS
Ocata Therapeutics, Inc.OCAT
Occidental Petroleum CorporationOXY
Ocean Bio-Chem, Inc.OBCI
Ocean Power Technologies, Inc.OPTT
Ocean Rig UDW Inc.ORIG
Ocean Shore Holding Co.OSHC
Oceaneering InternationalOII
OceanFirst Financial Corp.OCFC
Ocera Therapeutics, Inc.OCRX
Och-Ziff Capital Management Group LLCOZM
OCI Partners LPOCIP
OCI Resources LPOCIR
Oclaro, Inc.OCLR
Oconee Federal Financial Corp.OFED
Ocular Therapeutix, Inc.OCUL
Oculus Innovative Sciences, Inc.OCLS
Oculus Innovative Sciences, Inc.OCLSW
Ocwen Financial CorporationOCN
Odyssey Marine Exploration, Inc.OMEX
Office Depot, Inc.ODP
OFG BancorpOFG
OFG BancorpOFG^A
OFG BancorpOFG^B
OFG BancorpOFG^D
OFS Capital CorporationOFS
OGE Energy CorporationOGE
OHA Investment CorporationOHAI
Ohio Valley Banc Corp.OVBC
Ohr Pharmaceuticals, Inc.OHRP
Oi S.A.OIBR
Oi S.A.OIBR.C
Oil States InternationalOIS-6.99%
Oil-Dri Corporation Of AmericaODC
Old Dominion Freight Line, Inc.ODFL
Old Line Bancshares, Inc.OLBK
Old National BancorpONB
Old Point Financial CorporationOPOF-2.64%
Old Republic International CorporationORI
Old Second Bancorp, Inc.OSBC
Old Second Bancorp, Inc.OSBCP
Olin CorporationOLN
Ollie's Bargain Outlet Holdings, Inc.OLLI
Olympic Steel, Inc.ZEUS
OM Asset Management plcOMAM
OM GroupOMG
Omega Flex, Inc.OFLX
Omega Healthcare InvestorsOHI
Omega Protein CorporationOME
Omeros CorporationOMER
OmnicareOCR^A
OmnicareOCR^B
Omnicell, Inc.OMCL
Omnicom Group Inc.OMC
OmniVision Technologies, Inc.OVTI
OMNOVA Solutions Inc.OMN
On AssignmentASGN
On Deck CapitalONDK
ON Semiconductor CorporationON-3.39%
On Track Innovations LtdOTIV
OncoGenex Pharmaceuticals Inc.OGXI
Oncolytics Biotech, Inc.ONCY
OncoMed Pharmaceuticals, Inc.OMED
Onconova Therapeutics, Inc.ONTX
OncoSec Medical IncorporatedONCS
Oncothyreon Inc.ONTY
ONE GasOGS-3.42%
One Horizon Group, Inc.OHGI
One Liberty PropertiesOLP
OneBeacon Insurance GroupOB
Oneida Financial Corp.ONFC
ONEOKOKE
ONEOK PartnersOKS
Onvia, Inc.ONVI
OomaOOMA
Open Text CorporationOTEX
Opexa Therapeutics, Inc.OPXA
Opexa Therapeutics, Inc.OPXAW
OpGen, Inc.OPGN
OpGen, Inc.OPGNW
Ophthotech CorporationOPHT
Opko Health IncOPK
OpowerOPWR
Oppenheimer HoldingsOPY-6.9%
Optibase Ltd.OBAS
Optical Cable CorporationOCC
OptimumBank Holdings, Inc.OPHC
Opus BankOPB
Oracle CorporationORCL-2.81%
Oramed Pharmaceuticals Inc.ORMP
OrangeORAN
OraSure Technologies, Inc.OSUR
ORBCOMM Inc.ORBC
Orbital ATKOA
Orbitz WorldwideOWW
Orbotech Ltd.ORBK
Orchid Island CapitalORC
Orexigen Therapeutics, Inc.OREX
Origin Agritech LimitedSEED
Orion Energy Systems, Inc.OESX
Orion Engineered Carbons S.AOEC
Orion Marine Group IncORN
Oritani Financial Corp.ORIT
Orix Corp AdsIX
Ormat TechnologiesORA
Orrstown Financial Services IncORRF
Orthofix International N.V.OFIX
Oshkosh CorporationOSK
OSI Systems, Inc.OSIS
Osiris Therapeutics, Inc.OSIR
Ossen Innovation Co., Ltd.OSN
Otelco Inc.OTEL
Otonomy, Inc.OTIC
Otter Tail CorporationOTTR
Outerwall Inc.OUTR
OUTFRONT Media Inc.OUT
Ovascience Inc.OVAS
Overstock.com, Inc.OSTK
Owens & MinorOMI
Owens Corning IncOC
Owens-IllinoisOI
Oxbridge Re Holdings LimitedOXBR
Oxbridge Re Holdings LimitedOXBRW
Oxford Immunotec Global PLCOXFD
Oxford IndustriesOXM
Oxford Lane Capital Corp.OXLC
Oxford Lane Capital Corp.OXLCN
Oxford Lane Capital Corp.OXLCO
OXiGENE, Inc.OXGN