| Abbreviation | Definition |
|---|---|
| SPSTE | Spencer's Restaurants, Inc. |
| SPSU | Superior Supplements, Inc. |
| SPTK | Spintek Gaming Technologies, Inc. |
| SPTM | Spectrum Labs, Inc. |
| SPTN | Spartan Stores |
| SPTSE | Sports Media, Inc. |
| SPUME | Spectrum Oil Corporation |
| SPYG | SpyGlass, Inc. |
| SPZN | Speizman Industries, Inc. |
| SQBG | Sequential Brands Group, Inc. |
| SQL | Server Query Line |
| SQNB | Sequoia National Bank of San Francisco |
| SQNM | Sequenom, Inc. |
| SQST | Sciquest, Inc. |
| SQTRE | Sequester Holdings, Inc. |
| SRAM | Simtek Corporation |
| SRBT | Surry Bank & Trust of North Carolina |
| SRCE | 1st Source Corporation |
| SRCE | First Source Corporation |
| SRCEO | First Source Capital Trust II |