| ACHC | Acadia Healthcare Company |
| AMED | Amedisys |
| AMN | AMN Healthcare Services |
| CYH | Community Health Systems |
| EHC | Encompass Health |
| ENSG | Ensign Group |
| HCA | HCA Healthcare |
| OPCH | Option Care Health |
| SGRY | Surgery Partners |
| THC | Tenet Healthcare |
| UHS | Universal Health Services |
| USPH | U.S. Physical Therapy |