| Abbreviation | Definition |
|---|---|
| FLP | Fletcher Challenge Paper Division |
| FLR | Fluor Corporation |
| FLS | Flowserve Corporation |
| FLY | AirLease, LTD. |
| FMC | FMC Corporation |
| FMI | Franklin Multi- Income Trust |
| FMK | Fibermark, Inc. |
| FMN | F & M National Corporation |
| FMO | Federal Mogul Corporation |
| FMS | Fresenius Medical Care, A. G. |
| FMT | Fremont General Corporation |
| FMX | Fomento Economico Mexicano S |
| FNB | First Chicago Corporation |
| FNF | Fidelity National Financial Corporation |
| FNL | Fansteel, Inc. of Delaware |
| FNM | Federal National Mortgage Association |
| FNMPA | Federal National Mortgage Association Preferred A |
| FNMPB | Federal National Mortgage Association Preferred B |
| FNMPC | Federal National Mortgage Association Preferred C |
| FNV | FiNova Group, Inc. |