| Abbreviation | Definition |
|---|---|
| SN | Standard Oil of Indiana (Amoco) |
| SNA | Snap-On Tools Corporation |
| SNB | Sunburst Hospitality Corporation |
| SNC | Snyder Communications, Inc. |
| SNE | Sony Corporation |
| SNF | Spain Fund, Inc. |
| SNH | Senior Housing Properties Trust |
| SNN | Smith & Nephew P L C, American Depositary Receipts |
| SNOW | Snowflake Inc. |
| SNP | China Petroleum & Chemical |
| SNS | The Steak n Shake Company |
| SNV | Synovus Financial Corporation |
| SNY | Sanofi- Synthelabo, American Depositary Receipts |
| SO | Southern Company |
| SOA | Southern Africa Fund, Inc. |
| SOC | Sunbeam Corporation |
| SOI | Solutia, Inc. |
| SOL | Sola International, Inc. |
| SON | SONOCO Products Company |
| SOR | Source Capital, Inc. |