| Abbreviation | Definition |
|---|---|
| NNN | Commercial Net Lease Realty |
| NNP | Nuveen New York Performance Plus Municipal Fund |
| NNS | Newport News Shipbuilding and Drydock, Inc. |
| NNY | Nuveen New York Municipal Value Fund |
| NOC | Northrop Grumman Corporation |
| NOI | National- Oilwell, Inc. |
| NOK | Nokia Corporation |
| NOPPA | Newscorp Overseas, LTD. Preferred A |
| NOPPB | Newscorp Overseas, LTD. Preferred B |
| NOR | Northwestern Corporation |
| NORPA | Northwestern Capital Financing I |
| NORPB | Northwestern Capital Financing II |
| NP | National Power, PLC. |
| NP | Notice Period |
| NPC | Nuveen Insured California Premium Income Fund |
| NPF | Nuveen Premier Municipal Income Fund |
| NPI | Nuveen Premium Income Municipal Fund |
| NPK | National Presto Industries, Inc. |
| NPM | Nuveen Premium Income Municipal Fund 2 |
| NPO | EnPro Industries, Inc. |