| Abbreviation | Definition |
|---|---|
| ACRT | Actrade International, LTD. |
| ACRU | Accrue Software, Inc. |
| ACSEF | A C S Electronics, LTD. |
| ACTB | Action Sports Limited |
| ACTFF | Actfit.Com, Inc. |
| ACTI | ActivCard, S. A. |
| ACTL | Actel Corporation |
| ACTM | A C T Manufacturing, Inc. |
| ACTN | Action Performance Companies |
| ACTT | A C T Teleconferencing, Inc. |
| ACTT | ACT Teleconferencing, Inc. (de-listed) |
| ACTT | ACT Teleconferencing, Inc. (de-listed) |
| ACTTW | A C T Teleconferencing, Inc. Warrants |
| ACTTW | ACT Teleconferencing, Inc. Warrants (de-listed) |
| ACTTW | ACT Teleconferencing, Inc. Warrants (de-listed) |
| ACTU | Actuate Corporation |
| ACTYF | Applied Carbon Technology, Inc. |
| ACUC | All Communications Corporation |
| ACUCU | All Communications Corporation |
| ACUCW | All Communications Corporation Warrants |