| Abbreviation | Definition |
|---|---|
| NWXPA | National Westminster Bank, P. L. C. Preferred A |
| NX | Quanex Corporation |
| NXC | Nuveen California Select Tax-Free Income Portfolio |
| NXC | Nuveen Insured California Select Tax-Free Fund |
| NXL | New Plan Excel Realty Trust, Inc. |
| NXLPA | New Plan Excel Realty Trust, Inc. Preferred A |
| NXLPB | New Plan Excel Realty Trust, Inc. Preferred B |
| NXN | Nuveen Insured New York Select Tax-Free Fund |
| NXP | Nuveen Select Tax-Free Income Fund |
| NXQ | Nuveen Select Tax-Free Income Potential Fund |
| NXR | Nuveen Select Tax-Free Income Potential Fund 3 |
| NXS | Salomon Smith Barney Holdings I |
| NXY | Nexen, Inc. |
| NXZ | NUVEEN DIVIDEND ADV Municipal Fund |
| NYE | NycoMed AmerSham, P. L. C. |
| NYM | NyMagic, Inc. |
| NYT | New York Times Company |
| NZF | NUVEEN Dividend Advisory Municipal Fund |
| NZT | Telecom Corporation of New Zealand, LTD. |
| O | Realty Income Corporation |