| Abbreviation | Definition |
|---|---|
| RWMC | Redwood Microcap Fund, Inc. |
| RWMC | Redwood Microcap Fund, Incorporated (de-listed) |
| RWMC | Redwood Microcap Fund, Incorporated (de-listed) |
| RXMSE | Rx Medical Service Corporation |
| RXMSE | Rx Medical Service Corporation (de-listed) |
| RXMSE | Rx Medical Service Corporation (de-listed) |
| RXSD | Rexall Sundown, Inc. |
| RXSD | Rexall Sundown, Incorporated (de-listed) |
| RXSD | Rexall Sundown, Incorporated (de-listed) |
| RXTX | RX Technology Holdings Inc, |
| RXTX | RX Technology Holdings Incorporated (de-listed) |
| RXTX | RX Technology Holdings Incorporated (de-listed) |
| RYAAY | RyanAir Holdings P L C |
| RYAN | Ryan's Family Steakhouses, Inc. (former symbol - now delisted) |
| RYBOD | Royce Biomedical, Inc. |
| RYCEY | Rolls Royce P L C |
| RYFCE | Royal Acceptance Corporation |
| RYFLC | Ryan Family Steak Houses of Florida, Inc. |
| RYMRQ | Rymer Foods, Inc. (in bankruptcy) |
| RYOU | Ramsay Youth Services, Inc. |