| Abbreviation | Definition |
|---|---|
| STTS | State Assembly Test Services, LTD. |
| STTX | Steel Technologies, Inc. |
| STUR | Sturgis Federal Savings Bank |
| STVDZ | Southward Ventures Depositary Trust |
| STVI | S T V Group, Inc. |
| STXD | South Texas Drill & Exploration |
| STXX | Sterling Chemicals Holding Company |
| STXX | Sterling Chemicals Holding Company (de-listed) |
| STXX | Sterling Chemicals Holding Company (de-listed) |
| STYB | Security Banc Corporation of Ohio |
| STYB | Security Banc Corporation of Ohio (de-listed) |
| STYB | Security Banc Corporation of Ohio (de-listed) |
| STYY | Statordyne Corporation |
| STYY | Statordyne Corporation (de-listed) |
| STYY | Statordyne Corporation (de-listed) |
| SUBI | Sun Bancorp, Inc., of Pennsylvania |
| SUBI | Sun Bancorp, Incorporated (de-listed) |
| SUBI | Sun Bancorp, Incorporated (de-listed) |
| SUBK | Suffolk Bancorp |
| SUBM | Submicron Systems Corporation |