| Abbreviation | Definition |
|---|---|
| A | Agilent Technologies |
| AA | Alcoa, Inc. |
| AAC | Arcadia Financial, LTD |
| AAE | AMDOCS Automatic Commercial Exchange |
| AAF | ABN Amro Funds |
| AAG | American Annuity Group, Inc. |
| AAGPT | American Annuity Group Capital Trust |
| AAI | Airtran Holdings, Inc. |
| AAM | AAMES Financial Corporation |
| AAP | Advance Auto Parts, Inc. |
| AAR | A M R Corporation |
| AAS | Amerisource Health Corporation |
| AAT | All American Term Trust, Inc. |
| ABB | Abb, Ltd. |
| ABC | American Broadcasting Companies, Inc. |
| ABC | AmerisourceBergen Corporation |
| ABF | Airborne Freight Corporation |
| ABG | Asbury Automotive Group, Inc. |
| ABI | Applera Corporation - Applied Biosystems Group |
| ABJ | Alabama Power Company |