| Abbreviation | Definition |
|---|---|
| MWG | Modern Water |
| MWGT | Miton Worldwide |
| MWH | Millwall Hldgs |
| MWS | Mawana Gdr |
| MWY | Mid Wynd Int. |
| MXF | Medicx Fund |
| MXM | Maxima Hldgs |
| MXP | Max Petrol |
| MYI | Murray Intl.tst |
| MYIB | Murray Int.'b' |
| NAD | Namakwa Di. |
| NANO | Nanoco |
| NAR | Northamber |
| NARS | Nationw.acc |
| NAS | North Atlantic Smaller Companies Investment Trust, PLC. |
| NASA | Nasstar |
| NAUT | Nautilus Marine Services, P.L.C. Ordinary shares |
| NBB | Norman Broadb |
| NBDD | Nb Distressed |
| NBDS | Nb Distressed S |