| Abbreviation | Definition |
|---|---|
| AMM | Almaden Minerals Ltd. |
| ANO | Anatolia Minerals Development Limited |
| ANP | Angiotech Pharmaceuticals, Inc. |
| ANP | Angiotech Pharmaceuticals, Incorporated |
| ANS | Ainsworth Lumber Co. Ltd. |
| ANS | Ainsworth Lumber Company, LTD. |
| ANV | Allied Nevada Gold Corporation |
| ANX | Anaconda Mining Inc. |
| ANX | Anaconda Mining Incorporated |
| AOG | Brompton Advantaged Oil & Gas Income Fund |
| AP | Allied Properties Real Estate Investment Trust |
| APV | ARISE Technologies Corporation |
| APY | Anglo Pacific Group, P.L.C. |
| AQA | Aquila Resources Inc. |
| AQA | Aquila Resources Incorporated |
| AQL | Aeroquest International Limited |
| AQN | Algonquin Power Utilities Corporation |
| AQN | Algonquin Power & Utilities Corporation |
| AR | Argonaut Gold Inc. |
| AR | Argonaut Gold Incorporated |