| Abbreviation | Definition |
|---|---|
| AXAS | Abraxas Petroleum Corporation |
| AXCS | Access Pharmaceutical, Inc. |
| AXGI | Auxer Group, Inc., of Delaware |
| AXHMQ | Axiohm Transaction SOLS (in bankruptcy) |
| AXIS | Z Axis Corporation |
| AXK | Accelr8 Technology Corporation |
| AXLE | T J T, Inc. |
| AXNT | Axent Technologies, Inc. |
| AXPH | Axyws Pharmaceuticals, Inc. (delisted) |
| AXSI | Axcess, Inc. |
| AXTI | A X T, Inc. (formerly American Xtal Technology, Inc.) |
| AXYS | Axsys Technologies, Inc. |
| AZIC | Arizona Instrument Corporation |
| AZPN | Aspen Technology, Inc. |
| AZTC | Aztec Technology Partners, Inc. (delisted) |
| AZUL | Azul Holdings |
| AZUR | Azurel, LTD. |
| AZURV | Azurel, LTD. |
| AZURW | Azurel, LTD. Warrants |
| AZUWV | Azurel, LTD. Warrants When Issued |