| Abbreviation | Definition |
|---|---|
| TON | Trader Order Number |
| TOVI | The Option Value Indicator |
| TP | Target Price |
| TP | Trade Pending |
| TP | Trade Police |
| TPE | Trans-Pacific Exchange |
| TPIF | Timbercorp Primary Infrastructure Fund |
| TPLAC | Third Party Life Annuity Contracts |
| TPN | Trading Process Network |
| TPT | Tappit Resources, Ltd. |
| TQJ | Tower Semiconductor, Ltd. options |
| TQK | Tollgrade Communications, Inc. Options |
| TQQ | Columbia Sportswear Company options |
| TQZ | Tweeter Home Entertainment Group Options |
| TRA | Trade |
| TRAC | Total Return Aimed Composite |
| TRC | Tradable Renewable Certificate |
| TRIP | Technical Result And Investment Portfolio |
| TRIPS | Trade-Related aspects of Intellectual Property Rights |
| TRR | T N R Resources, Ltd. |