| Abbreviation | Definition |
|---|---|
| HLO | Healthcare Loc |
| HLPD | Hellnic.pet.gds |
| HLS | Helesi |
| HMB | Hambledon Mng |
| HMLH | Hml Hldgs |
| HMSG | Hms Hydraulic S |
| HMSO | Hammerson |
| HMV | HMV Group (de-listed) |
| HMV | HMV Group (de-listed) |
| HMV | Hmv Grp |
| HMY | Hamworthy |
| HNDA | Honda Motor |
| HNE | Henderson Eurotrust, PLC |
| HNT | Huntsworth |
| HOC | Hochschild Mining, P.L.C. |
| HOIL | Heritage Oil |
| HOME | Home Retail |
| HON | Honeywell Int. |
| HOT | Hend.opp |
| HOTS | Hend.opp Sub |