| Abbreviation | Definition |
|---|---|
| SSD | Simpson Manufacturing, Inc. |
| SSE | Southern Connecticut Bancorp, Inc. |
| SSI | Sunstone Hotel Investments, Inc. |
| SSP | E. W. Scripps Company Class A Common |
| SSR | SSBH Capital I |
| SSS | Sovran Self Storage, Inc. |
| SSSPB | Sovran Self Storage, Inc. Preferred B |
| SSW | Seaspan Corporation |
| SSW | Sterling Software, Inc. (de-listed) |
| SSY | SunLink Health Systems |
| ST | SPS Technologies, Inc. |
| STC | Stewart Information Services Corporation |
| STD | Banco Santander Cent Hispano |
| STE | Steris Corporation |
| STI | SunTrust Banks, Inc. |
| STJ | St. Jude Medical, Inc. |
| STK | Storage Technology Corporation |
| STL | Sterling Bancorp |
| STM | S T Microelectronics N V |
| STN | Station Casinos, Inc. |