| NASDAQ | APTO | 26 |
| NYSE | APTS | 55 |
| NYSE | APTV | 93 |
| NYSE | APTV-PA | 2 |
| NASDAQ | APTX | 20 |
| NASDAQ | APVO | 23 |
| NASDAQ | APYX | 5 |
| NASDAQ | AQB | 15 |
| NASDAQ | AQMS | 66 |
| NASDAQ | AQST | 30 |
| NYSE | AQUA | 53 |
| NYSE | AR | 67 |
| NASDAQ | ARAI | 1 |
| NASDAQ | ARAV | 12 |
| NASDAQ | ARAY | 94 |
| NYSE | ARC | 85 |
| NASDAQ | ARCB | 62 |
| NASDAQ | ARCC | 105 |
| NYSE | ARCH | 64 |
| NASDAQ | ARCK | 8 |
| NASDAQ | ARCT | 38 |
| NASDAQ | ARDS | 2 |
| NASDAQ | ARDX | 186 |
| NYSE | ARE | 219 |
| NASDAQ | AREB | 3 |
| NASDAQ | AREC | 18 |
| NYSE MKT | AREN | 4 |
| NYSE | ARES | 341 |
| NYSE | ARGO | 22 |
| NASDAQ | ARHS | 28 |
| NYSE | ARI | 61 |
| NYSE | ARIS | 16 |
| NASDAQ | ARKO | 3 |
| NASDAQ | ARKR | 21 |
| NYSE | ARL | 31 |
| NYSE | ARLO | 80 |
| NASDAQ | ARLP | 45 |
| NYSE | ARMK | 54 |
| NYSE | ARNC | 55 |
| NYSE | AROC | 63 |
| NASDAQ | AROW | 118 |
| NASDAQ | ARQ | 15 |
| NASDAQ | ARQT | 140 |
| NYSE | ARR | 56 |
| NASDAQ | ARRY | 79 |
| NASDAQ | ARTL | 9 |
| NASDAQ | ARTNA | 92 |
| NASDAQ | ARTV | 3 |
| NASDAQ | ARTW | 50 |
| NASDAQ | ARVN | 77 |
