| Abbreviation | Definition |
|---|---|
| NXTV | Next Level Communications |
| NXUS | Nexus Telocation |
| NYBS | New York Bagel Enterprises, Inc. |
| NYER | N Y E R Medical Group, Inc. |
| NYFX | Nyfix, Inc. |
| NYHC | New York Health Care, Inc. |
| NYIC | New Yorker Marketing Corporation |
| NYICW | New Yorker Marketing Warrants |
| NYICW | New Yorker Marketing Warrants (de-listed) |
| NYICW | New Yorker Marketing Warrants (de-listed) |
| NYLE | Nyle International Corporation |
| NYMR | Ryan Murphy, Inc. |
| NYMX | Nymox Pharmaceutical Corporation |
| NYRR | New York Regional Rail Corporation |
| NYTS | NyTest Environmental, Inc. |
| NYVA | Nyvatex Oil Corporation |
| NZR | NUVEEN New York Dividend Advisory Municipal Fund |
| NZRO | etZero |
| NZRO | NetZero |
| NZSKY | Sky Network Television |