| Abbreviation | Definition |
|---|---|
| SKK | Spinnaker Industries, Inc. |
| SKKA | Spinnaker Industries, Inc. Class A |
| SKV | Sentry Technology Corporation |
| SKVPA | Sentry Technology Corporation Preferred A |
| SLF | Selfcare, Inc. |
| SLJ | Scripps Financial Corporation |
| SLS | Sales Corporation of America |
| SMCA | A. O. Smith Corporation Class A |
| SNQ | Merrill Lynch & Company Inc. 9% Callable Stock Return Income Debt Securities |
| SNR | Sunair Electronics, Inc. |
| SOS | Storage Computer Corporation |
| SPN | Security Pennsylvania Financial Corporation |
| SPS | Morgan Stanley Dean Witter & Company |
| SPW | Salem- Plaistow- Windham Metropolitan Planning Organization |
| SQK | SPARQS Linked to Intel Corporation |
| SRG | SurgiCare, Inc. of Delaware |
| SRK | SeraCare, Inc. |
| SRN | Southern Banc, Inc. |
| SRS | ARV Assisted Living, Inc. |
| SRY | Surety Capital Corporation |