| Abbreviation | Definition |
|---|---|
| NMGB | Neiman Marcus Groups, Inc. Class B |
| NMI | Nuveen Municipal Income Fund, Inc. |
| NMK | Niagara Mohawk Holdings, Inc. |
| NMKPA | Niagara Mohawk Power Corporation Preferred A |
| NMKPB | Niagara Mohawk Power Corporation Preferred B |
| NMKPC | Niagara Mohawk Power Corporation Preferred C |
| NMKPD | Niagara Mohawk Power Corporation Preferred D |
| NMKPE | Niagara Mohawk Power Corporation Preferred E |
| NMKPG | Niagara Mohawk Power Corporation Preferred G |
| NMKPH | Niagara Mohawk Power Corporation Preferred H |
| NMKPI | Niagara Mohawk Power Corporation Preferred I |
| NMKPK | Niagara Mohawk Power Corporation Preferred K |
| NMO | Nuveen Municipal Market Opportunity Fund |
| NMP | Nuveen Michigan Premium Income Municipal Fund |
| NMT | Nuveen Massachusetts Premium Income Municipal Fund |
| NMY | Nuveen Maryland Premium Income Municipal Fund |
| NN | Newbridge Networks Corporation |
| NNC | Nuveen North Carolina Premium Income Municipal Fund |
| NNF | Nuveen Insured New York Premium Income Fund |
| NNJ | Nuveen New Jersey Premium Income Municipal Fund |