NMM navios maritime partners lp common units representing limited partner interests NYSE Marine Transportation NM navios maritime holdings inc. NYSE Marine Transportation NVGS navigator holdings ltd. ordinary shares (marshall islands) NYSE Marine Transportation NAVI navient corporation NASDAQ Investment Bankers/Brokers/Service NAVB navidea biopharmaceuticals, inc. AMEX Biotechnology: In Vitro & In Vivo Diagnostic Substances NAUT nautilus biotechnology, inc. NASDAQ NWG natwest group plc american depositary shares NYSE NTZ natuzzi, s.p.a. NYSE NATR nature's sunshine products, inc. NASDAQ Major Pharmaceuticals NMHI nature's miracle holding inc. NASDAQ NWGL nature wood group limited - american depositary shares NASDAQ NRP natural resource partners lp limited partnership NYSE Coal Mining NHTC natural health trends corp. - commn stock NASDAQ NGVC natural grocers by vitamin cottage, inc. NYSE Food Chains NGS natural gas services group, inc. NYSE Oilfield Services/Equipment NAII natural alternatives international, inc. NASDAQ NTCO natura &co holding s.a. american depositary shares NYSE NTIOF natl bk of canada AMEX NABZY natl australia bk s/adr AMEX NAUBF natl australia bk ltd ord AMEX NWLI national western life group, inc. - class a NASDAQ Life Insurance NSA national storage affiliates trust common shares of beneficial interest NYSE Real Estate Investment Trusts NRUC national rural utilities cooperative finance corporation 5.500% subordinated notes due 2064 (subordinated deferrable interest notes) NYSE NNN national retail properties NYSE Real Estate Investment Trusts NRC national research corporation NYSE NPK national presto industries, inc. NYSE Ordnance And Accessories NHC national healthcare corporation AMEX Hospital/Nursing Management NHI national health investors, inc. NYSE Real Estate Investment Trusts NGG national grid transco, plc national grid plc (new) american depositary shares NYSE Natural Gas Distribution NFG national fuel gas company NYSE Oil/Gas Transmission NESR national energy services reunited corp - ordinary shares NASDAQ Business Services NCMI national cinemedia, inc. NASDAQ Advertising NACB national cap bancorp inc AMEX NKSH national bankshares, inc. NASDAQ Major Banks NBHC national bank holdings corporation NYSE Major Banks NATH nathan's famous, inc. NASDAQ Restaurants NHMD nate's food co AMEX NTRA natera, inc. NASDAQ Medical Specialities NPSNY naspers ltd s/adr AMEX NDAQ nasdaq, inc. NASDAQ Investment Bankers/Brokers/Service NBIO nascent biotech inc AMEX NASB nasb fincl inc NASDAQ NSSC napco security technologies, inc. NASDAQ NNOX nano-x imaging ltd - ordinary shares NASDAQ NNVC nanoviricides, inc. AMEX Biotechnology: Commercial Physical & Biological Resarch NAOV nanovibronix, inc. AMEX NSTG nanostring technologies, inc. NASDAQ Biotechnology: Biological Products (No Diagnostic Substances) NANX nanophase techs corp NASDAQ NBTX nanobiotix s.a. - adss NASDAQ NNE nano nuclear energy inc. - common stock NASDAQ