| Abbreviation | Definition |
|---|---|
| ABCU | Alliance Bank of Culver City |
| ABCW | Anchor Bancorp of Wisconsin |
| ABDV | Atlantis Business Development Corporation |
| ABER | ABER Diamond Corporation |
| ABERF | Aber Resources, LTD. |
| ABETE | 649.Com, Inc. |
| ABFI | American Business Financial Services, Inc. |
| ABFS | Arkansas Best Corporation of Delaware |
| ABFSP | Arkansas Best Corporation of Delaware Preferred |
| ABGX | Abgenix, Inc. |
| ABIDE | Showstar Online.com, Inc. |
| ABIO | Applied Biometrics, Inc. |
| ABIX | Abatix Corporation |
| ABIZ | Adelphia Business |
| ABLC | AbleAuctions.Com, Inc. |
| ABLE | Able Energy, Inc. |
| ABMC | American Bio Medical Corporation |
| ABMD | Abiomed, Inc. |
| ABMI | American Biomed, Inc. |
| ABNK | American Banknote Corporation |