| Abbreviation | Definition |
|---|---|
| ALHY | Alpha Hospitality Corporation |
| ALIDA | Alliance Industries Class A |
| ALIF | Artificial Life |
| ALKS | Alkermes, Inc. |
| ALKSP | Alkermes, Inc. Preferred |
| ALLB | Greater Delaware Valley Savings Bank |
| ALLC | Allied Capital Corporation (delisted - now ALD on NYSE) |
| ALLD | Allison Industries, LTD. |
| ALLE | Allegiant Bancorp, Inc. |
| ALLJ | Alcan Aluminum |
| ALLN | Allin Corporation |
| ALLP | Alliance Pharmaceutical Corporation |
| ALLR | Allaire Corporation |
| ALLS | Allstar Systems, Inc. |
| ALLT | Allot Communications Ltd. |
| ALLX | International Alliance Resources, Inc. (new listing - old ALLX de-listed) |
| ALLY | Alliance Gaming Corporation |
| ALMI | Alpha Microsystems, Inc. |
| ALNC | Alliance Financial Corporation |
| ALOG | Analogic Corporation |