| Abbreviation | Definition |
|---|---|
| TXHOM | Texas Utilities Electric Company US Holdings Company |
| TXHON | Texas Utilities Electric Company US Holdings Company |
| TXHOO | Texas Utilities Electric Company US Holdings Company |
| TXHOP | Texas Utilities Electric Company US Holdings Company |
| TXHUH | Texas Utilities Electric Company US Holdings Company |
| TXHUL | Texas Utilities Electric Company US Holdings Company |
| TXLI | TexOil, Inc. |
| TXMC | The Tirex Corporation |
| TXN | Texas Instruments |
| TXRH | Texas Roadhouse, Inc. |
| TXSCL | Texas Utilities Electric Company (delisted) |
| TXSCM | Texas Utilities Electric Company (delisted) |
| TXSLN | Texas Utilities Electric Company (delisted) |
| TXSLP | Texas Utilities Electric Company (delisted) |
| TXSPO | Texas Utilities Electric Company (delisted) |
| TXSSL | Texas Utilities Electric Company (delisted) |
| TXSSM | Texas Utilities Electric Company (delisted) |
| TXSSO | Texas Utilities Electric Company (delisted) |
| TXSTO | Texas Utilities Electric Company (delisted) |
| TXSUL | Texas Utilities Electric Company (delisted) |