| Abbreviation | Definition |
|---|---|
| SBL | Symbol Technologies, Inc. |
| SBP | Banco Santander of Puerto Rico, San Juan |
| SBPPA | Banco Santander Of Puerto Rico, San Juan Preferred A |
| SBR | Sabine Realty Trust |
| SBW | Salomon Brothers Worldwide Income Fund |
| SC | Shell Transportation & Trading, PLC |
| SCG | Public Service Company of North Carolina, Inc. (formerly South Carolina Gas) (now delisted) |
| SCG | Scana Corporation |
| SCH | Charles Schwab Corporation |
| SCHW | Charles Schwab Corp |
| SCI | SCI Systems, Inc. |
| SCL | Stepan Company |
| SCM | SwissCom |
| SCO | Scor S. A. |
| SCRA | Sea Containers, LTD CLass A |
| SCRA | Sea Containers, LTD CLass A (de-listed) |
| SCRA | Sea Containers, LTD CLass A (de-listed) |
| SCRB | Sea Containers, LTD Class B |
| SCS | Steelcase, Inc. |
| SCVA | Scania Aktiebolag. Class A |