| NEXA | | Metal Mining | 1713930 |
| NEXCF | | Services-Computer Programming Services | 1737270 |
| NEXM | | Metal Mining | 795800 |
| NEXN | | Services-Computer Programming, Data Processing, Etc. | 1849396 |
| NEXT | | Natural Gas Transmisison & Distribution | 1612720 |
| NFBK | | Savings Institution, Federally Chartered | 1493225 |
| NFE | | Natural Gas Distribution | 1749723 |
| NFG | | Natural Gas Distribution | 70145 |
| NFGC | | Gold and Silver Ores | 1840616 |
| NFJ | | Loan Brokers | 1260563 |
| NFLX | | Services-Video Tape Rental | 1065280 |
| NFSN | | Motor Vehicle Parts & Accessories | 1284454 |
| NFTN | | Oil & Gas Field Exploration Services | 1544400 |
| NG | | Gold and Silver Ores | 1173420 |
| NGCG | | Services-Computer Programming Services | 1061040 |
| NGD | | Metal Mining | 800166 |
| NGG | | Natural Gas Transmission | 1004315 |
| NGL | | Natural Gas Transmission | 1504461 |
| NGLD | | Gold and Silver Ores | 1605481 |
| NGNE | | Pharmaceutical Preparations | 1404644 |
| NGS | | Oil & Gas Field Services, NEC | 1084991 |
| NGTF | | Misc Industrial & Commercial Machinery & Equipment | 1593001 |
| NGVC | | Retail-Grocery Stores | 1547459 |
| NGVT | | Chemicals & Allied Products | 1653477 |
| NGXXF | | - | 2044153 |
| NHC | | Services-Skilled Nursing Care Facilities | 1047335 |
| NHFLF | | - | 1075822 |
| NHI | | Real Estate Investment Trusts | 877860 |
| NHIC | | Blank Checks | 2043699 |
| NHKSY | | - | 2087500 |
| NHLTY | | - | 2060863 |
| NHS | | - | 1487610 |
| NHTC | | Wholesale-Miscellaneous Nondurable Goods | 912061 |
| NI | | Electric & Other Services Combined | 1111711 |
| NIC | | National Commercial Banks | 1174850 |
| NICE | | Services-Prepackaged Software | 1003935 |
| NICHX | | - | 1736510 |
| NIE | | - | 1383441 |
| NIHK | | Real Estate | 1084475 |
| NIKA | | Pharmaceutical Preparations | 1145604 |
| NIM | | - | 890119 |
| NIMU | | Electromedical & Electrotherapeutic Apparatus | 720762 |
| NINE | | Oil & Gas Field Services, NEC | 1532286 |
| NIO | | Motor Vehicles & Passenger Car Bodies | 1736541 |
| NIOMF | | - | 1937453 |
| NIPG | | Services-Miscellaneous Amusement & Recreation | 1966233 |
| NIQ | | Services-Computer Programming, Data Processing, Etc. | 2054696 |
| NISN | | Miscellaneous Fabricated Metal Products | 1603993 |
| NITO | | Agricultural Chemicals | 1789192 |
| NIU | | Motor Vehicles & Passenger Car Bodies | 1744781 |
