| ALTO | Alto Ingredients, Inc. | 3.75 | Basic Materials | Stocks | NCM |
| ATO | Atmos Energy Corporation | 114.02 | Utilities | Stocks | NYQ |
| APTO | Aptose Biosciences, Inc. | 3.87 | Healthcare | Stocks | NCM |
| ATRO | Astronics Corporation | 16.93 | Industrials | Stocks | NMS |
| ATLO | Ames National Corporation | 17.71 | Financial Services | Stocks | NCM |
| ATAO | ALTAIR INTERNATIONAL CORP | 0.05 | Basic Materials | Stocks | PNK |
| ATTOF | Atento S.A. | 0.00 | Industrials | Stocks | PNK |
| ABTO | AB&T FINANCIAL CORPORATION | 0.51 | Financial Services | Stocks | PNK |
| STTO | SITO MOBILE LTD | 0.00 | Communication Services | Stocks | PNK |
| ATMO | AMERICATOWNE HOLDINGS INC | 0.00 | Industrials | Stocks | PNK |
| ASTO | ASTRO COMMUNICATIONS INC | 3.28 | Industrials | Stocks | PNK |
| ATTO | Atento S.A. | 0.47 | Industrials | Stocks | NYQ |
| AVTO | AVTO | 0.01 | N/A | Stocks | PNK |
| ATTY | ATTY | 0.00 | N/A | Stocks | PNK |
| ATTU | ATTU | N/A | N/A | Stocks | NCM |
| ATTD | ATTD | 0.00 | N/A | Stocks | PNK |
| DTTO | DTTO | 0.00 | N/A | Stocks | PNK |
| AUTO | AUTO | N/A | N/A | Stocks | NCM |
| RTTO | RTTO | 1.01 | N/A | Stocks | PNK |
| ATCO | ATCO | N/A | N/A | Stocks | NYQ |
| AT.TO | AT.TO | 2.14 | N/A | Stocks | TOR |