| N | NetSuite, Inc. | NICE | NICE Systems Ltd. | NSEC | National Security Group Inc. |
| NABI | Nabi Biopharmaceuticals | NICK | Nicholas Financial Inc. | NSFC | Northern States Financial Corporation |
| NAC | Nuveen California Dividend Advantage Municipal Fund | NIE | Nicholas-Applegate Eqty & Conv Income Fd | NSH | NuStar GP Holdings, LLC |
| NAD | Nuveen Dividend Advantage Municipal Fund | NIF | Nuveen Premier Insured Municipal Income Fund Inc. | NSHA | Nashua Corp. |
| NADX | National Dentex Corp. | NIHD | NII Holdings Inc. | NSIT | Insight Enterprises Inc. |
| NAFC | Nash Finch Co. | NII | Nuveen North Carolina Dividend Advantage Municipal Fund 3 | NSL | Nuveen Senior Income Fund |
| NAI | Nicholas-Applegate International & Premium Strategy Fund | NILE | Blue Nile Inc. | NSM | National Semiconductor Corporation |
| NAII | Natural Alternatives International Inc. | NIM | Nuveen Select Maturities Municipal Fund | NSPH | Nanosphere, Inc. |
| NAK | Northern Dynasty Minerals Ltd. | NINE | Ninetowns Internet Technology Group Company Limited | NSR | NeuStar, Inc. |
| NAL | New Alliance Bancshares Inc. | NIO | Nuveen Insured Municipal Opportunity Fund Inc. | NSSC | Napco Security Technologies, Inc. |
| NAN | Nuveen New York Dividend Advantage Municipal Fund | NITE | Knight Capital Group Inc. | NST | NSTAR |
| NANO | Nanometrics Inc. | NIV | NIVS IntelliMedia Technology Group, Inc. | NSTC | Ness Technologies Inc. |
| NANX | Nanophase Technologies Corp. | NJ | Nidec Corp. | NSU | Nevsun Resources Ltd. |
| NAQ | NRDC Acquisition Corp | NJR | New Jersey Resources Corp. | NSUR | Insure.com Inc. |
| NARA | Nara Bancorp Inc. | NJV | Nuveen New Jersey Municipal Value Fund | NSYS | Nortech Systems Inc. |
| NAS | NSDQ100 TIERS 13 | NKA | Niska Gas Storage Partners | NTAP | NetApp, Inc. |
| NASB | NASB Financial Inc | NKBP | China Nuokang Bio-Pharmaceutical Inc | NTC | Nuveen Connecticut Premium Income Municipal Fund |
| NASI | ESG Shares North America Sustnblty Index | NKE | Nike Inc. | NTCT | NetScout Systems Inc. |
| NAT | Nordic American Tanker Shipping Ltd. | NKG | Nuveen Georgia Dividend Advantage Municipal Fund 2 | NTE | Nam Tai Electronics, Inc. |
| NATH | Nathan's Famous Inc. | NKL | Nuveen Insured California Dividend Advantage Municipal Fund | NTES | Netease.com Inc. |
| NATI | National Instruments Corp. | NKO | NUVEEN INSRD NY DIV ADV MUNI | NTG | NATCO Group Inc. |
| NATL | National Interstate Corporation | NKR | NUVEEN AZ DIV ADV MUNI FD 2 | NTGR | Netgear Inc. |
| NAV | Navistar International Corp. | NKSH | National Bankshares Inc. | NTIC | Northern Technologies International Corp. |
| NAVG | Navigators Group Inc. | NKTR | Nektar Therapeutics | NTII | Neurobiological Technologies Inc. |
| NAVI | NaviSite Inc. | NKW | ML 50/150 Nikkei 225 Idx Nts | NTL | Nortel Inversora S.A. |
| NAVR | Navarre Corp. | NKX | NUVEEN INSRD CA TX FR ADV MUNI | NTLS | NTELOS Holdings Corp. |
| NAZ | Nuveen Arizona Premium Income Municipal Fund Inc. | NL | NL Industries Inc. | NTN | NTN Buzztime Inc. |
| NBB | Nuveen Build America Bond Fund | NLC | Nalco Holding Co. | NTRI | NutriSystem Inc. |
| NBBC | NewBridge Bancorp | NLCI | Nobel Learning Communities Inc. | NTRS | Northern Trust Corporation |
| NBG | National Bank of Greece SA | NLP | NTS RLTY HLG LP | NTSC | National Technical Systems Inc. |
| NBH | Neuberger Berman Intermediate Municipal Fund Inc. | NLR | Market Vectors-Nuclear Energy | NTT | Nippon Telegraph & Telephone Corp. |
| NBIX | Neurocrine Biosciences Inc. | NLS | Nautilus Inc. | NTWK | NetSol Technologies Inc. |
| NBJ | NUVEEN OHIO DIV ADV MUNI FD 2 | NLST | Netlist Inc. | NTX | Nuveen Texas Quality Income Municipal Fund |
| NBL | Noble Energy, Inc. | NLTX | Nile Therapeutics, Inc | NTY | NBTY, Inc. |
| NBN | Northeast Bancorp | NLX | Overture Acquisition Corp | NTZ | Natuzzi SpA |
| NBO | Neuberger Berman New York Intermediate Municipal Fund Inc. | NLY | Annaly Capital Management, Inc. | NU | Northeast Utilities |
| NBR | Nabors Industries Ltd. | NM | Navios Maritime Holdings Inc. | NUAN | Nuance Communications, Inc. |
| NBS | Neostem, Inc. | NMA | Nuveen Municipal Advantage Fund Inc. | NUC | Nuveen California Quality Income Municipal Fund |
| NBTB | NBT Bancorp, Inc. | NMB | Nuveen Massachusetts Dividend Advantage Municipal Fund | NUCL | iShrs Trust S&P Glbl Nuclr Enrgy Idx Fnd |
| NBTF | NB&T Finl Gp Inc | NMD | Nuveen Municipal High Income Opprtnty Fd | NUE | Nucor Corporation |
| NBW | Neuberger Berman California Intermediate Municipal Fund Inc. | NMI | Nuveen Municipal Income Fund Inc. | NUF | Nuveen Florida Quality Income Municipal Fund |
| NBXH | Morgan Stanley | NMM | Navios Maritime Partners L.P. | NUHC | Nu Horizons Electronics Corp. |
| NBY | NovaBay Pharmaceuticals, Inc. | NMO | Nuveen Municipal Market Opportunity Fund Inc. | NUJ | Nuveen New Jersey Dividend Advantage Municipal Fund 2 |
| NC | Nacco Industries Inc. | NMP | Nuveen Michigan Premium Income Municipal Fund | NUM | Nuveen Michigan Quality Income Municipal Fund Inc. |
| NCA | Nuveen CA Municipal Value Fund | NMQ | ML Aclrtd Rtrn Nts Lnkd S&P 500 Idx | NUN | Nuveen New York Quality Income Municipal Fund |
| NCB | Nuveen California Municipal Value Fund | NMR | Nomura Holdings Inc. | NUO | Nuveen Ohio Quality Income Municipal Fund Inc. |
| NCBC | New Century Bancorp Inc. | NMRX | Numerex Corp. | NURO | NeuroMetrix Inc. |
| NCI | Navigant Consulting Inc. | NMT | Nuveen Massachusetts Premium Income Municipal Fund | NUS | Nu Skin Enterprises Inc. |
| NCIT | NCI, Inc. | NMTI | NMT Medical Inc. | NUTR | Nutraceutical International Corp. |
| NCL | Nuveen Insured California Premium Income Municipal Fund 2 Inc. | NMY | Nuveen Maryland Premium Income Municipal Fund | NUV | Nuveen Municipal Value Fund Inc. |
| NCMI | National CineMedia, Inc. | NMZ | Nuveen Municipal High Income Opportunity Fund | NUVA | NuVasive, Inc. |
| NCO | Nuveen California Municipal Market Opportunity Fund Inc. | NNA | Navios Maritime Acquisition Corp | NUW | NUVEEN MUNI VAL FD2 |
| NCOC | National Coal Corp. | NNB | Nuveen Virginia Dividend Advantage Municipal Fund 2 | NVAX | Novavax, Inc. |
| NCP | Nuveen California Performance Plus Municipal Fund Inc. | NNBR | NN Inc. | NVC | Nuveen California Select Quality Municipal Fund Inc. |
| NCR | NCR Corp. | NNC | Nuveen North Carolina Premium Income Municipal Fund | NVD | Novadel Pharma Inc. |
| NCS | NCI Building Systems Inc. | NNF | Nuveen Insured New York Premium Income Municipal Fund Inc. | NVDA | NVIDIA Corporation |
| NCST | Nucryst Pharmaceuticals Corporation | NNI | Nelnet Inc. | NVE | NV Energy, Inc. |
| NCT | Newcastle Investment Corp. | NNJ | Nuveen New Jersey Premium Income Municipal Fund Inc. | NVEC | NVE Corp. |
| NCTY | The9 Limited | NNN | National Retail Properties, Inc. | NVG | Nuveen Insured Dividend Advantage Municipal Fund |
| NCU | Nuveen CA Premium Income Muni Fund | NNO | Nuveen North Carolina Dividend Advantage Municipal Fund 2 | NVGN | Novogen Limited |
| NCV | Nicholas-Applegate Convertible & Income Fund | NNP | Nuveen New York Performance Plus Municipal Fund | NVJ | NUVEEN OH DIV ADV MUNI FD 3 |
| NCX | Nova Chemicals Corp. | NNY | Nuveen NY Municipal Value Fund | NVLS | Novellus Systems, Inc. |
| NCZ | Nicholas-Applegate Convertible & Income Fund II | NOA | North American Energy Partners Inc. | NVMI | Nova Measuring Instruments Ltd. |
| NDAQ | Nasdaq OMX Group Inc. | NOBH | Nobility Homes Inc. | NVN | Nuveen New York Select Quality Municipal Fund Inc. |
| NDD | Neuberger Berman Dividend Advantage Fund Inc. | NOC | Northrop Grumman Corporation | NVO | Novo Nordisk A/S |
| NDN | 99 Cents Only Stores | NOEC | New Oriental Energy & Chemical Corp | NVR | NVR Inc. |
| NDSN | Nordson Corp. | NOG | Northern Oil and Gas, Inc. | NVS | Novartis AG |
| NE | Noble Corp. | NOIZ | Micronetics Inc. | NVSL | Naugatuck Valley Financial Corp. |
| NEA | Nuveen Insured Tax Free Advantage Municipal Fund | NOK | Nokia Corp. | NVTL | Novatel Wireless Inc. |
| NEBS | New England Bancshares Inc. | NOM | Nuveen Missouri Premium Income Municipal Fund | NVX | NUVEEN CA DIV ADV MUNI FD 2 |
| NECB | Northeast Community Bancorp, Inc. | NOOF | New Frontier Media Inc. | NVY | Nuveen Pennsylvania Dividend Advantage Municipal Fund 2 |
| NED | Noah Education Holdings, Ltd. | NOR | Noranda Aluminum Holding Corp | NWBI | Northwst Bancshr |
| NEH | AB Svsk Ekptkdt Acrtd Rtn Nt Nki 225 Idx | NOV | National Oilwell Varco, Incorporated | NWD | New Dragon Asia Corp. |
| NEM | Newmont Mining Corp. | NOVA | NovaMed Inc. | NWE | Northwestern Corp. |
| NEN | New England Realty Assoc | NOVAD | Novamed Inc | NWF | Nuveen Insured Florida Tax Free Advantage Municipal Fund |
| NENG | Network Engines Inc. | NOVB | North Valley Bancorp | NWFL | Norwood Financial Corp. |
| NEOG | Neogen Corp. | NOVL | Novell Inc. | NWI | Nuveen Maryland Dividend Advantage Municipal Fund 3 |
| NEON | Neonode Inc | NOVN | Noven Pharmaceuticals Inc. | NWK | Network Equipment Technologies Inc. |
| NEP | China North East Petroleum Holdings Ltd. | NOW | AIG Nikkei 225 Idx MITTS | NWL | Newell Rubbermaid Inc. |
| NEPT | Neptune Technologies & Bioresources Inc | NOX | Neuberger Berman Income Opportunity Fund Inc. | NWLI | National Western Life Insurance Company |
| NETC | Net Servico De | NP | Neenah Paper, Inc. | NWMO | |
| NETL | NetLogic Microsystems Inc. | NPBC | National Penn Bancshares Inc. | NWN | Northwest Natural Gas Co. |
| NEU | NewMarket Corp. | NPBCO | NPB CAP TR II PFD GTD | NWPX | Northwest Pipe Co. |
| NEV | NUVEEN ENHANCED MUNI | NPC | Nuveen Ins CA Prem Income Muni Fund | NWS | News Corp Ltd ADR |
| NEWL | NewLead Holdings Ltd | NPD | China Nepstar Chain Drugstore Ltd. | NWSA | News Corp. |
| NEWP | Newport Corp. | NPF | Nuveen Premier Municipal Income Fund Inc. | NWSB | Northwest Bancorp Inc. (Warren, PA) |
| NEWS | NewStar Financial, Inc. | NPG | Nuveen Georgia Premium Income Municipal Fund | NWY | New York & Company Inc. |
| NEWT | Newtek Business Services Inc. | NPI | Nuveen Premium Income Municipal Fund Inc. | NX | Quanex Building Products Corporation |
| NEXM | NexMed Inc. | NPK | National Presto Industries Inc. | NXC | Nuveen California Select Tax Free Portfolio |
| NEXMD | Nexmed Inc | NPM | Nuveen Premium Income Municipal Fund 2 Inc. | NXE | NUVEEN AZ DIV ADVAN MUNI 3 |
| NEXS | Nexxus Lighting, Inc. | NPN | Nuveen Pennsylvania Municipal Value Fund | NXG | Northgate Minerals Corp. |
| NFBK | Northfield Bancorp, Inc. (Staten Island, NY) | NPO | EnPro Industries, Inc. | NXI | NUVEEN OH DIV ADV MUNI FD |
| NFC | NUVEEN CT DIV ADVAN MUNI FD | NPP | Nuveen Performance Plus Municipal Fund Inc. | NXJ | Nuveen New Jersey Dividend Advantage Municipal Fund |
| NFG | National Fuel Gas Co. | NPS | MS S&P 500 Idx Cap Prtctd Nts | NXK | NUVEEN NY DIV ADV MUNI FD 2 |
| NFJ | NFJ Dividend, Interest & Premium Strategy Fund | NPSP | NPS Pharmaceuticals, Inc. | NXM | Nuveen Pennsylvania Dividend Advantage Municipal Fund |
| NFL | Nuveen Insured Florida Premium Income Municipal Fund | NPT | Nuveen Premium Income Municipal Fund 4 Inc. | NXN | Nuveen NY Select Port |
| NFLX | Netflix, Inc. | NPV | Nuveen Virginia Premium Income Municipal Fund | NXP | Nuveen Select Tax-Free Income Portfolio |
| NFM | Nuveen Maryland Dividend Advantage Municipal Fund | NPX | Nuveen Insured Premium Income Municipal Fund 2 | NXQ | Nuveen Select Tax Free Income Portfolio 2 |
| NFO | Claymore Sabr Insdr | NPY | Nuveen Pennsylvania Premium Income Municipal Fund 2 | NXR | Nuveen Select Tax-Free Income Portfolio 3 |
| NFP | National Financial Partners Corp. | NQC | Nuveen California Investment Quality Municipal Fund Inc. | NXST | Nexstar Broadcasting Group Inc. |
| NFSB | Newport Bancorp Inc. | NQF | Nuveen Florida Investment Quality Municipal Fund | NXT | NYSE Arca Tech 100 |
| NFX | Newfield Exploration Co. | NQI | Nuveen Insured Quality Municipal Fund Inc. | NXTM | Nxstage Medical, Inc. |
| NFZ | NUVEEN ARIZ DIV ADV MUNI FD | NQJ | Nuveen New Jersey Investment Quality Municipal Fund Inc. | NXXI | Nutrition 21 Inc. |
| NG | NovaGold Resources Inc. | NQM | Nuveen Investment Quality Municipal Fund Inc. | NXY | Nexen Inc |
| NGA | North American Galvanizing & Coatings Inc. | NQN | Nuveen New York Investment Quality Municipal Fund Inc. | NXZ | Nuveen Dividend Advatage Municipal Fund 2 |
| NGAS | NGAS Resources Inc. | NQP | Nuveen Pennsylvania Investment Quality Municipal Fund Inc. | NY | ISHARES NYSE 100 INDEX FD |
| NGB | NUVEEN VA DIV ADVAN MUNI FD | NQS | Nuveen Select Quality Municipal Fund Inc. | NYB | New York Community Bancorp Inc. |
| NGBF | New Generation Biofuels Holdings, Inc. | NQU | Nuveen Quality Income Municipal Fund Inc. | NYC | ISHARES NYSE COMPOSITE |
| NGD | New Gold, Inc. | NR | Newpark Resources Inc. | NYER | Nyer Medical Group Inc. |
| NGG | National Grid plc | NRB | NUVEEN NC DIV ADVAN MUNI FD | NYF | iShares S&P New York Municipal Bond Fund |
| NGK | Nuveen Connecticut Dividend Advantage Municipal Fund 2 | NRC | NATL RURAL UTIL CFC SUB NTS | NYFX | NYFIX Inc. |
| NGLS | Targa Resources Partners LP | NRCI | National Research Corp. | NYH | EATON VANCE INS NY MUNI BD II |
| NGO | Nuveen Connecticut Dividend Advantage Municipal Fund 3 | NRF | NorthStar Realty Finance Corp. | NYM | Nymagic Inc. |
| NGPC | NGP Capital Resources Company | NRG | NRG Energy, Inc. | NYMT | New York Mortgage Trust Inc. |
| NGS | Natural Gas Services Group Inc. | NRGN | Neurogen Corp. | NYMX | Nymox Pharmaceutical Corporation |
| NGSX | NeurogesX, Inc. | NRGP | INERGY HOLDINGS LP | NYNY | Empire Resorts Inc. |
| NGT | Eastern Amer Nat Gas | NRGY | Inergy LP | NYT | The New York Times Company |
| NGX | NUVEEN INSRD MA TX FR ADV MUNI | NRIM | Northrim Bancorp Inc. | NYV | Nuveen New York Municipal Value Fund |
| NGZ | Nicholas-Applgt Glbl Eqty&Cvrtbl IncmFnd | NRK | NUVEEN INSRD NY TX FR ADV MUNI | NYW | ML Acelerated Rtn Nts Lkd Nikkei 225 Idx |
| NHC | National Healthcare Corp. | NRN | National Rural Utilities Cooperative Finance Corp. | NYX | NYSE Euronext, Inc. |
| NHI | National Health Investors Inc. | NRO | Neuberger Berman Real Estate Securities Income Fund Inc. | NZ | Netezza Corporation |
| NHP | Nationwide Health Properties Inc. | NRP | Natural Resource Partners LP | NZF | Nuveen Dividend Advantage Municipal Fund 3 |
| NHR | North Asia Investment Corp | NRT | North European Oil Royalty Trust | NZH | NUVEEN CALIF DIV ADV MUNI 3 |
| NHS | Neuberger Berman High Yield Strategies Fund | NRU | National Rural Utilities Co-op Fin Corp | NZR | Nuveen Maryland Dividend Advantage Municipal Fund 2 |
| NHTB | New Hampshire Thrift Bancshares Inc. | NRVN | Nature Vision Inc. | NZT | Telecom Corp. of New Zealand Ltd. |
| NHWK | NightHawk Radiology Holdings, Inc. | NS | NuStar Energy L.P. | NZW | NUVEEN MI DIV ADV MUNI FD |
| NI | Nisource Inc. | NSANY | Nissan Motors Inc | NZX | NUVEEN GA DIV ADV MUNI FD |
| NIB | iPath DJ-AIG Cocoa | NSC | Norfolk Southern Corp. |
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