| OFSIX | O''Shaughnessy Small Cap Value Fund | USMF |
| OKEY.L | O'Key Group S.A. GDR | LSE |
| ORLY | O'Reilly Automotive, Inc. | NASD |
| OIIM | O2Micro Intl Ltd. | NASD |
| OIII.V | O3 Mining Inc. | TSXV |
| OVLY | Oak Valley Bancorp | NASD |
| OARMX | Oakmark | USMF |
| OARBX | Oakmark Equity & Income II | USMF |
| OAKBX | Oakmark Equity and Income I | USMF |
| OAKMX | Oakmark Fund Cl I | USMF |
| OARGX | Oakmark Global | USMF |
| OAKGX | Oakmark Global Fund Class I; a series of Harris Associates Investment Trust | USMF |
| OAKWX | Oakmark Global Select I | USMF |
| OARIX | Oakmark International | USMF |
| OAKIX | Oakmark International I | USMF |
| OAKEX | Oakmark International Small Cap I | USMF |
| OARLX | Oakmark Select | USMF |
| OAKLX | Oakmark Select Fund (The) Cl I | USMF |
| OCSL | Oaktree Specialty Lending Corporation | NASD |
| OSLE | Oaktree Specialty Lending Corporation | NYSE |
| OCSI | Oaktree Strategic Income Corporation | NASD |
| OGZD.L | OAO Gazprom ADR | LSE |
| LKOD.L | OAO Lukoil ADR | LSE |
| NVTK.L | OAO Novatek GDR | LSE |
| ATAD.L | OAO Tatneft ADR | LSE |
| TMKS.L | OAO TMK GDR | LSE |
| OMP | Oasis Midstream Partners LP | NYSE |
| OAS | Oasis Petroleum Inc. | NYSE |
| OASMY | Oasmia Pharmaceutical AB | PINK |
| OBLN | Obalon Therapeutics, Inc. | NASD |
| OBEROIRLTY.IN | Oberoi Realty Ltd. | NSE |
| OBCHX | Oberweis China Opportunities | USMF |
| OBEGX | Oberweis Emerging Growth Fund Portfolio Of Oberweis Micro Cap | USMF |
| OBIOX | Oberweis International Opportunities Fund | USMF |
| OBMCX | Oberweis Micro Cap Portfolio | USMF |
| OBSOX | Oberweis Small-Cap Opportunities Fund | USMF |
| OBSV | ObsEva SA | NASD |
| OBE | Obsidian Energy Ltd. | NYSE |
| OBE.TO | Obsidian Energy Ltd. | TSE |
| OCDO.L | Ocado Group | LSE |
| OCDGF | Ocado Group plc | PINK |
| OXY | Occidental Petroleum Corp. | NYSE |
| OBCI | Ocean Bio-Chem, Inc. | NASD |
| OPTT | Ocean Power Technologies Inc. | NASD |
| OCANF | OceanaGold Corp. | PINK |
| OGC.TO | OceanaGold Corp. | TSE |
| OII | Oceaneering Intl, Inc. | NYSE |
| OCFC | OceanFirst Financial Corp. | NASD |
| FEO.V | Oceanic Iron Ore Corp. | TSXV |
| OCN.V | Oceanus Resources Corp. | TSXV |
| SCU | Och-Ziff Capital Management Group LLC | NYSE |
| OISL.IN | OCL Iron & Steel Ltd | NSE |
| OFED | Oconee Federal Financial Corp. | NASD |
| OCS/UN.TO | OCP Credit Strategy Fund | TSE |
| OSL/UN.TO | OCP Senior Credit Fund | TSE |
| OCGN | Ocugen Inc. | NASD |
| OCUL | Ocular Therapeutix Inc. | NASD |
| OVT.V | Oculus VisionTech Inc. | TSXV |
| OVTZ | Oculus Visiontech, Inc. | PINK |
| OCN | Ocwen Financial Corp. | NYSE |
| ODT | Odonate Therapeutics, Inc. | NASD |
| OMEX | Odyssey Marine Exploration, Inc. | NASD |
| !PMOAZOEX | OEX % PMO Above Zero | INDX |
| !PMORISOEX | OEX % PMO Rising | INDX |
| !PMOBUYOEX | OEX % PMO Xover BUY Signals | INDX |
| !1EMAOEX | OEX 1% EMA of Advance-Decline Ratio | INDX |
| !10INDROEX | OEX 10% Index (RA) | INDX |
| !10VLIROEX | OEX 10% Volume Index (RA) | INDX |
| !5INDROEX | OEX 5% Index (RA) | INDX |
| !5VINROEX | OEX 5% Volume Index (RA) | INDX |
| !50EMABOEX | OEX 50% EMA of Advance-Decline Ratio | INDX |
| !50EMAVOEX | OEX 50% EMA of Advance-Decline Volume Ratio | INDX |
| !ADLINEOEX | OEX Advance-Decline Line | INDX |
| !ADVOLOEX | OEX Advance-Decline Volume (Net A-D Vol) | INDX |
| !CUMVOLOEX | OEX Advance-Decline Volume Line | INDX |
| !ADVRATOEX | OEX Advance-Decline Volume Ratio | INDX |
| !ADVOEX | OEX Advances | INDX |
| !NETADOEX | OEX Advances Minus Declines (Net A-D) | INDX |
| !ADRATOEX | OEX Daily Advance-Decline Ratio | INDX |
| !DECLOEX | OEX Declines | INDX |
| !DVOLOEX | OEX DOWN Volume | INDX |
| !ITBMRAOEX | OEX IT Breadth Momentum Osc (ITBM) | INDX |
| !ITVMOEX | OEX IT Volume Momentum Osc (ITVM) | INDX |
| !MCOSIROEX | OEX McClellan Osc | INDX |
| !MCSUMROEX | OEX McClellan Summation Index | INDX |
| !VMCOSIOEX | OEX McClellan Volume Osc | INDX |
| !NEWHIOEX | OEX New Highs | INDX |
| !NEWLOOEX | OEX New Lows | INDX |
| !GT20OEX | OEX Stocks Above 20-EMA | INDX |
| !GT200OEX | OEX Stocks Above 200-EMA | INDX |
| !GT50OEX | OEX Stocks Above 50-EMA | INDX |
| !STOBOEX | OEX Swenlin TradOsc-Breadth (STO-B) | INDX |
| !STOVOEX | OEX Swenlin TradOsc-Volume (STO-V) | INDX |
| !TOVOLOEX | OEX Total Volume | INDX |
| !UVOLOEX | OEX UP Volume | INDX |
| !VMCSUMOEX | OEX Volume McClellan Summation Index | INDX |
| ODP | Office Depot, Inc. | NASD |
| OPI | Office Properties Income Trust | NASD |
| OPINI | Office Properties Income Trust | NASD |
| OFS | OFS Capital Corp. | NASD |
| OCCI | OFS Credit Co., Inc. | NASD |
| OGE | OGE Energy Corp. | NYSE |
| OHAI | OHA Investment Corp. | NASD |
| OVBC | Ohio Valley Banc Corp. | NASD |
| NBSE | Ohr Pharmaceutical, Inc. | NASD |
| OIBR/C | Oi S.A. ADS | NYSE |
| OIBRQ | Oi S.A. ADS | PINK |
| ONGC.IN | Oil & Natural Gas Corp. Ltd. | NSE |
| OILCOUNTUB.IN | Oil Country Tubular Ltd. | NSE |
| ODC | Oil Dri Corp. Of America | NYSE |
| $XOI | Oil Index - NYSE Arca | INDX |
| OIL.IN | Oil India Ltd. | NSE |
| OISHY | Oil Search Limited | PINK |
| $OSX | Oil Services Index - Philadelphia | INDX |
| OIS | Oil States Intl | NYSE |
| OEX.L | Oilex Ltd | LSE |
| ROSN.L | OJSC Rosneft Oil Co. | LSE |
| OKTA | Okta, Inc. | NASD |
| ODFL | Old Dominion Freight Line, Inc. | NASD |
| OLBK | Old Line Bancshares Inc. | NASD |
| ONB | Old National Bancorp | NASD |
| OPOF | Old Point Financial Corp. | NASD |
| ORI | Old Republic Intl Corp. | NYSE |
| OSBCP | Old Second Bancorp Capital Trust I | NASD |
| OSBC | Old Second Bancorp, Inc. | NASD |
| OLECTRA.IN | Olectra Greentech Limited | NSE |
| OLN | Olin Corp. | NYSE |
| OLVI | Oliveda International, Inc. | PINK |
| OLV.V | Olivut Resources Ltd. | TSXV |
| OLVRF | Olivut Resources Ltd. | PINK |
| OLLI | Ollie's Bargain Outlet Holdings Inc. | NASD |
| OFAFX | Olstein Financial Alert Adv | USMF |
| OFALX | Olstein Financial Alert Fund | USMF |
| OFSCX | Olstein Strategic Opportunities Fund | USMF |
| OLY.TO | Olympia Financial Group Inc. | TSE |
| ZEUS | Olympic Steel, Inc. | NASD |
| OCPNY | Olympus Corp. | PINK |
| OMMETALS.IN | OM Metals Infraprojects Ltd. | NSE |
| OMAG | Omagine, Inc. | PINK |
| OMAXAUTO.IN | Omax Autos Limited | NSE |
| OMAXE.IN | Omaxe Ltd. | NSE |
| OFLX | Omega Flex Inc | NASD |
| OHI | Omega Healthcare Invs, Inc. | NYSE |
| OMER | Omeros Corp. | NASD |
| OMM.V | Omineca Mining and Metals Ltd. | TSXV |
| OMKARCHEM.IN | Omkar Speciality Chemicals Ltd. | NSE |
| OMHE | Omni Health Inc | PINK |
| OML.V | Omni-Lite Industries Canada, Inc. | TSXV |
| OMCL | Omnicell Inc. | NASD |
| OMC | Omnicom Group, Inc. | NYSE |
| OMTK | OmniTek Engineering Corp. | PINK |
| OMN | Omnova Solutions Incq | NYSE |
| OMRNY | Omron Corp | PINK |
| $OMXC20CP | OMX Copenhagen 20 CAP Index | OMX |
| $OMXC20 | OMX Copenhagen 20 Index | OMX |
| $HEX25 | OMX Helsinki 25 Index | INDX |
| $OMXN40 | OMX Nordic 40 Index | OMX |
| $OMXS30 | OMX Stockholm 30 Index | OMX |
| ON | ON Semiconductor Corp. | NASD |
| OTB.L | On The Beach Group PLC | LSE |
| OTIVF | On Track Innovations Ltd. | PINK |
| ONCI | On4 Communications Inc | PINK |
| OBMP | OncBioMune Pharmaceuticals, Inc. | PINK |
| OCX | OncoCyte Corp. | AMEX |
| ONPH | Oncology Pharma Inc. | PINK |
| ONC.TO | Oncolytics Biotech, Inc. | TSE |
| ONCY | Oncolytics Biotech, Inc. | NASD |
| ONTX | Onconova Therapeutics, Inc. | NASD |
| ONCS | OncoSec Medical Inc. | NASD |
| ONCT | Oncternal Therapeutics, Inc. | NASD |
| ONDK | OnDeck Capital Inc. | NYSE |
| $ONE | One | INDX |
| OGS | ONE Gas Inc. | NYSE |
| ONEQ.TO | ONE Global Equity ETF | TSE |
| PGBOX | One Group Bond | USMF |
| OBOCX | One Group Bond Fund | USMF |
| ODMCX | One Group Diversified Mid Cap Fund | USMF |
| PECAX | One Group Diversified Mid Cap Fund - Class A | USMF |
| WOOPX | One Group Diversified Mid Cap Fund Class I | USMF |
| OIEIX | One Group Equity Income Fund Class A | USMF |
| OGEAX | One Group Equity Index Fund A | USMF |
| OEICX | One Group Equity Index Fund Class C | USMF |
| HLEIX | One Group Equity Index Portfolio Class I | USMF |
| OGGAX | One Group Government Bond Fund | USMF |
| OGHCX | One Group High Yield Bond Fund | USMF |
| OHYAX | One Group High Yield Bond Fund | USMF |
| STKS | ONE Group Hospitality, Inc. | NASD |
| HLIPX | One Group Income Bond Class I | USMF |
| OBDCX | One Group Income Bond Fund | USMF |
| OEIAX | One Group International Equity Index Fund | USMF |
| OGIAX | One Group Investor Balanced | USMF |
| OCGCX | One Group Investor Conservative Growth Fund | USMF |
| OICAX | One Group Investor Conservative Growth Fund | USMF |
| ONCFX | One Group Investor Conservative Growth Fund Class I | USMF |
| ONGAX | One Group Investor Growth | USMF |
| ONGFX | One Group Investor Growth & Income | USMF |
| ONECX | One Group Investor Growth & Income Fund | USMF |
| ONGIX | One Group Investor Growth & Income Fund - Class A | USMF |
| SEEGX | One Group Large Cap Growth | USMF |
| OLGAX | One Group Large Cap Growth Fund - Class A | USMF |
| OLGCX | One Group Large Cap Growth Fund Class C | USMF |
| OLVAX | One Group Large Cap Value Fund | USMF |
| PGMIX | One Group Market Expansion Index | USMF |
| OMEAX | One Group Market Expansion Index Fund | USMF |
| OMECX | One Group Market Expansion Index Fund Class C | USMF |
| OSGIX | One Group Mid Cap Growth Fund - Class A | USMF |
| OMGCX | One Group Mid Cap Growth Fund Class C | USMF |
| HLGEX | One Group Mid Cap Growth Fund Class I | USMF |
| OTBAX | One Group Municipal Income Fund | USMF |
| OSTAX | One Group Short Term Municipal Bond Fund | USMF |
| OSTCX | One Group Short-Term | USMF |
| HLLVX | One Group Short-Term Bond Fund | USMF |
| OGLVX | One Group Short-Term Bond Fund | USMF |
| STMCX | One Group Short-term Municipal Bond Fund | USMF |
| OSGCX | One Group Small Cap Growth Fund Class C | USMF |
| OGGFX | One Group Small Cap Growth Fund Class I | USMF |
| PSOAX | One Group Small Cap Value | USMF |
| PSOPX | One Group Small Cap Value | USMF |
| OSVCX | One Group Small Cap Value Fund | USMF |
| PRBIX | One Group Tax Free Bond Fund | USMF |
| OGUCX | One Group Ultra Short-Term | USMF |
| HLGFX | One Group Ultra Short-Term Bond Fund | USMF |
| ONUAX | One Group Ultra Short-Term Bond Fund | USMF |
| OLP | One Liberty Properties, Inc. | NYSE |
| ONEPOINT.IN | One Point One Solutions Ltd | NSE |
| KOSK | One Step Vending Corp | PINK |
| OSS | One Stop Systems Inc. | NASD |
| OWLI.CA | One World Lithium Inc. | CSE |
| ONELIFECAP.IN | Onelife Capital Advisors Ltd. | NSE |
| OMF | OneMain Holdings, Inc. | NYSE |
| OKE | Oneok, Inc. | NYSE |
| OSB.L | Onesavings Bank | LSE |
| ONE | OneSmart International Education Group Limited | NYSE |
| OSS.V | OneSoft Solutions Inc. | TSXV |
| OSPN | OneSpan Inc. | NASD |
| OSW | OneSpaWorld Holdings Ltd. | NASD |
| ONEX.TO | ONEX Corp. | TSE |
| ONMOBILE.IN | OnMobile Global Ltd. | NSE |
| ONTO | Onto Innovation Inc | NYSE |
| OTRFX | OnTrack Core Fund | USMF |
| ONWARDTEC.IN | Onward Technologies Ltd. | NSE |
| OOMA | Ooma, Inc. | NYSE |