| Abbreviation | Definition |
|---|---|
| SMAL | Summit Bankshares of California |
| SMAN | Standard Management Corporation |
| SMAWY | Siemens, A. G. |
| SMBC | Southern Missouri Bancorp |
| SMBLF | Schmalbach Lubeca Ag Ratingen (delisted) |
| SMBXE | Symbolics, Inc. |
| SMCC | S M C Corporation |
| SMCH | Smart Choice Auto Group, Inc. |
| SMCS | Star Multi- Care Services, Inc. |
| SMCX | Special Metals Corporation |
| SMDK | Smartdisk |
| SMDLE | Summa Medical Corporation |
| SMDR | SAV MOR Drugs, Inc. |
| SMDXU | Spectrumedix Corporation |
| SMED | S M E D International, Inc. |
| SMEK | Smartek, Inc. |
| SMETE | Simetco, Inc. |
| SMGBF | San Miguel Corporation |
| SMGBY | San Miguel Corporation |
| SMGRE | Simone Group, Inc. |