| Abbreviation | Definition |
|---|---|
| NOTE | AutoBanc, Inc. |
| NOTW | Northwest Bank & Trust Company of Iowa |
| NOVA | NovaMed Eyecare, Inc. |
| NOVB | North Valley Bancorp |
| NOVI | Novitron International, Inc. |
| NOVL | Novell, Inc. |
| NOVN | Noven Pharmaceuticals, Inc. |
| NOVT | Novoste Corporation |
| NOXOQ | Noxso Corporation in bankruptcy (de-listed) |
| NOYR | Telecom Wireless Corporation |
| NPBC | National Penn Bancshares, Inc. |
| NPBCP | National Penn Bancshares, Inc., Capital Trust |
| NPBCP | National Penn Bancshares, Inc., Capital Trust (de-listed) |
| NPCI | N P C International, Inc. |
| NPCT | Nanopierce Technology, Inc. |
| NPEC | N P Energy Corporation |
| NPIX | Network Peripherals, Inc. |
| NPLI | Netpliance, Inc. |
| NPLS | Network Plus Corporation |
| NPNT | Northpoint Communications |