| Abbreviation | Definition |
|---|---|
| NTCSP | NetCurrents, Inc. Preferred (de-listed) |
| NTCSW | NetCurrents, Inc. Warrants |
| NTCSW | NetCurrents, Inc. Warrants (de-listed) |
| NTCT | NetScout Systems, Inc. |
| NTDOY | Nintendo, LTD. |
| NTEC | Neose Technologies, Inc. |
| NTEG | Integ, Inc. |
| NTEL | Net Tel International, Inc. |
| NTFY | Notify Technology Corporation |
| NTFYU | Notify Technology Corporation |
| NTFYW | Notify Technology Corporation Warrants |
| NTGMF | Northern Gaming, Inc. |
| NTGX | Net.Genesis Corporation |
| NTHLY | North, LTD. |
| NTIA | Netia Holdings S.A., ADS |
| NTII | Neurobiological Technology, Inc. |
| NTIQ | NetIQ Corporation |
| NTKK | Net2000 Communications |
| NTLI | N T L, Inc. |
| NTMD | NetMed, Inc. |