| Abbreviation | Definition |
|---|---|
| INFU | InfuTechnology, Inc. |
| INFY | Infosys Technologies, LTD. |
| INGR | Intergraph Corporation |
| INHL | Inhale Therapeutic Systems |
| INHMD | Inco Homes Corporation |
| INHO | Independence Holding Company |
| INHOW | Independence Holding Company Warrants |
| ININ | Interactive Intelligence |
| INIS | International Isotopes |
| INIT | Interliant, Inc. |
| INJX | Equidyne Corporation |
| INKP | Inkine Pharmaceuticals Company, Inc. |
| INKT | Inktomi Corporation |
| INLN | Inland Resources, Inc. |
| INLQ | ImmuLogic Pharmaceutical Corporation |
| INLQ | Interline Software Corporation (delisted) |
| INMD | Integramed America, Inc. |
| INMG | Insurance Management Solutions Group |
| INMRY | Instrumentarium Corporation |
| INMT | Intermet Corporation |