| ADV | Advantage Solutions |
| CCO | Clear Channel Outdoor |
| CDLX | Cardlytics |
| CMPR | Cimpress |
| CRTO | Criteo |
| CTV | Innovid |
| EEX | Emerald |
| EVC | Entravision Communications |
| IAS | Integral Ad Science |
| IPG | Interpublic Group of Companies |
| MCHX | Marchex |
| QNST | QuinStreet |
| TRMR | Nexxen |
| TSQ | Townsquare Media |