| Abbreviation | Definition |
|---|---|
| TXI | Texas Industries, Inc. |
| TXIPS | Texas Industries, Inc. Capital Trust I |
| TXN | Texas Instruments, Inc. |
| TXT | Textron, Inc. |
| TXTPA | Textron, Inc. Preferred A |
| TXTPB | Textron, Inc. Preferred B |
| TXTPT | Texgtron, Inc. Capital I |
| TXU | TXU Corporation ( Texas Utilities Company) |
| TXUPA | TXU Corporation ( Texas Utilities Company) Capital I |
| TXUPB | TXU Corporation ( Texas Utilities Company) Capital II |
| TXUPG | TXU Corporation ( Texas Utilities Company) Preferred G |
| TXUPI | TXU Corporation ( Texas Utilities Company) Preferred I |
| TY | Tri Continental Corporation |
| TYC | Tyco International, LTD. |
| TYL | Tyler Technologies, Inc. |
| TYW | Taiwan Equity Fund, Inc. |
| TZA | T V Azteca S. A. de C. V. |
| TZH | Trizec Hahn Corporation |
| U | U S Airways Group, Inc. |
| UAG | United Auto Group, Inc. |