| Abbreviation | Definition |
|---|---|
| ALYN | Alyn Corporation |
| ALYS | Alysis Technologies |
| AMAC | American Medical Alert Corporation |
| AMACW | American Medic Alert Corporation Warrants |
| AMAR | Amarillo Biosciences |
| AMAT | Applied Materials, Inc. |
| AMBB | Americas Bank Corporation |
| AMBC | American Bancorp of Ohio |
| AMBCP | American Bancorp Capital Trust I |
| AMBI | A M B I, Inc. |
| AMBZ | American Business Bank |
| AMCC | Applied Micro Circuits Corporation |
| AMCE | American Claims Evaluation, Inc. |
| AMCI | American Millenium Corporation, Inc. |
| AMCM | A M Communications, Inc. |
| AMCN | American Coin Merchandising |
| AMCR | Amcor, LTD. |
| AMCRP | Amcor, LTD. Preferred |
| AMCT | Amresco Capital Trust |
| AMCV | American Classic Voyages |