| Abbreviation | Definition |
|---|---|
| MUB | Mongolian Resource Corporation, LTD. |
| MUBO | Mongolian Resource Corporation Ltd |
| MUE | Multiplex European Property Fund |
| MUI | MUI |
| MUM | Mount Magnet South NL |
| MUN | Mundo Minerals Ltd |
| MUNO | Mundo Minerals Limited |
| MUT | Multi Channel Solutions, LTD. |
| MUX | Mungana Goldmines Limited |
| MVP | Medical Developments International |
| MWG | Macquarie Winton Global Opportunities Trust |
| MWN | Midwinter Resoures NL |
| MWR | MGM Wireless Ltd |
| MWS | MDS News Ltd |
| MXI | MaxiTRA Industries Ltd |
| MXR | Maximus Resources Ltd |
| MXUPA | MXU |
| MYA | My Atm Holdings Limited |
| MYE | Mastermyne Group Limited |
| MYG | Mutiny Gold Ltd |