| ABT | Abbott Laboratories | 62.60 | Stock | Drug Manufacturers - Major | NYQ |
| ABTL | Autobytel Inc. | 0.76 | Stock | Internet Information Providers | NCM |
| ABT.TO | Absolute Software Corporation | 5.82 | Stock | Technical & System Software | TOR |
| ABHD.OB | Abtech Holdings, Inc. | 0.73 | Stock | Pollution & Treatment Controls | OBB |
| ABTYX | AllianceBern High Income Municipal Adv | 11.05 | Mutual Fund | | NAS |
| ABT.MX | Abbott Laboratories | 849.20 | Stock | Drug Manufacturers - Major | MEX |
| ABTR-L.TA | ABETRANS B | 34.60 | Stock | | TLV |
| ABT.OL | AQUA BIO TECHNOLOGY | 9.78 | Stock | | OSL |
| ABTAX | American Century Government Bond A | 11.57 | Mutual Fund | | NAS |
| E1:L5I.SI | Abterra Ltd | 0.41 | Stock | | SES |
| ABTPX | American Beacon Treas Infl Prot Sec Inv | 11.41 | Mutual Fund | | NAS |
| ABTBF.PK | AB BIOTICS, BARCELON | 2.90 | Stock | | PNK |
| ABTIX | American Century Government Bond Instl | 11.57 | Mutual Fund | | NAS |
| ABTFX | AllianceBern High Income Municipal C | 11.06 | Mutual Fund | | NAS |
| E2:L5I.SI | Abterra Ltd | 0.59 | Stock | | SES |
| ABTO.OB | AB&T Financial Corp. | 0.90 | Stock | Regional - Mid-Atlantic Banks | OBB |
| ABTCX | American Century Government Bond C | 11.56 | Mutual Fund | | NAS |
| ABTHX | AllianceBern High Income Municipal A | 11.06 | Mutual Fund | | NAS |
| ABT.SW | Abbott Laboratories | 56.10 | Stock | | EBS |
| ABDTF.PK | ABTRUST NEW DAWN INV | 12.75 | Stock | | PNK |