| Abbreviation | Definition |
|---|---|
| RIOKZR | Rio Tinto Limited |
| RIOLOC | Rio Tinto Limited |
| RIOLOP | Rio Tinto Limited |
| RIOLOQ | Rio Tinto Limited |
| RIOQRB | Rio Tinto Limited |
| RIS | Richfield International Ltd |
| RIS | Richfield International LTD. |
| RKN | Reckon Ltd |
| RLA | Redisland Australia Ltd |
| RLC | Revere Mining |
| RLG | Rcl Group |
| RMD | ResMed Inc (USA CUFS) |
| RMDKMA | Resmed Inc |
| RMDKOA | Resmed Inc |
| RMDKOC | Resmed Inc |
| RMDKRP | Resmed Inc |
| RMDKRR | Resmed Inc |
| RMG | RMG Ltd |
| RMI | Resource Mining Corporation Ltd |
| RMIO | RMIO |