| Abbreviation | Definition |
|---|---|
| AAC | Australian Agricultural Company, LTD. |
| AAD | Ardent Leisure Group |
| AAI | Alcoa, Inc. |
| AAJ | Aruma Resources, Limited |
| AAK | Australia China Holdings, LTD. |
| AAKO | Australia China Holdings, Limited Options |
| AAL | Apac Coal, Limited |
| AAM | A1 Minerals, LTD. |
| AAO | Adept Solutions, LTD. (former code for Australasia Gold, LTD.) |
| AAQ | Australis Aquaculture, LTD. (de-listed) |
| AAR | Anglo Australian Resources, NL |
| AAS | Asian Pacific, LTD. |
| AAT | Autron Corporation, LTD. |
| AAU | Adcorp Australia, LTD. |
| AAX | Ausenco, LTD. |
| AAY | AACL Holdings, Limited |
| AAZPB | AAZ |
| AAZPB | Australand Assets Trust Preferred B (de-listed) |
| AAZPB | Australand Assets Trust Preferred B (de-listed) |
| ABC | Adelaide Brighton Ltd |