| Abbreviation | Definition |
|---|---|
| MIC | Genworth MI Canada Inc. |
| MIC | Genworth MI Canada Incorporated |
| MID | MINT Income Fund |
| MID.UN | MINT Income Fund |
| MIM | MI Developments Inc. |
| MIM | MI Developments Incorporated (de-listed) |
| MIM | MI Developments Incorporated (de-listed) |
| MKP | MCAN Mortgage Corporation |
| MKX | MKS Inc. |
| MKX | MKS Incorporated (de-listed) |
| MKX | MKS Incorporated (de-listed) |
| MKZ | Mackenzie Master Limited Partnership |
| ML | Mercator Minerals Ltd. |
| ML | Mercator Minerals LTD. (de-listed) |
| ML | Mercator Minerals LTD. (de-listed) |
| MLG | Malaga Inc. |
| MLG | Malaga Incorporated (de-listed) |
| MLG | Malaga Incorporated (de-listed) |
| MLL | Medusa Mining Limited |
| MLP | Front Street MLP Income Fund |