| Abbreviation | Definition |
|---|---|
| MYGOA | Mutiny Gold Limited |
| MYGOB | Mutiny Gold Limited |
| MYN | Mayan Iron Corporation Limited |
| MYNO | Mayan Iron Corporation Limited |
| MYR | Myer Holdings Limited |
| MYRKMA | Myer Holdings Limited |
| MYRKOB | Myer Holdings Limited |
| MYRKOC | Myer Holdings Limited |
| MYRKOP | Myer Holdings Limited |
| MYRKRA | Myer Holdings Limited |
| MYRKRB | Myer Holdings Limited |
| MYRKRC | Myer Holdings Limited |
| MYRKRP | Myer Holdings Limited |
| MYRKRR | Myer Holdings Limited |
| MYRKZA | Myer Holdings Limited |
| MYS | Mystate Limited |
| MYX | MYX |
| MZI | Matilda Zircon Limited |
| MZIO | Matilda Zircon Limited |
| MZM | Montezuma Mining Company Ltd |