| Abbreviation | Definition |
|---|---|
| RSC | Strateco Resources Incorporated (de-listed) |
| RSI | Rogers Sugar Income Fund |
| RSI | Rogers Sugar Incorporated |
| RTG | Ratel Group, Limited (formerly RTL) |
| RTK | Artek Exploration, LTD. |
| RTL | Ratel Gold, Limited (old symbol, now RTG) |
| RTU | Canadian Resources Income Trust |
| RUS | Russel Metals Inc. |
| RUS | Russel Metals, Incorporated |
| RUT | Rutter Inc. |
| RUT | Rutter Incorporated |
| RV | Revolution Resources corp. |
| RV | Revolution Resources Corporation |
| RVM | Revett Minerals, Inc. |
| RVX | Resverlogix Corporation |
| RY | Royal Bank of Canada |
| RYL | Royal Host Real Estate Investment Trust |
| RYT | RBC Capital Trust |
| S | Sherritt International Corporation |
| SAC | South American Silver Corporation |