| Abbreviation | Definition |
|---|---|
| WSE | Winnipeg Stock Exchange |
| WSEC | Wuhan Securities Exchange Centre |
| WSIB | Washington State Investment Board |
| WSMM | Weekly Stock Market Model |
| WSO | Wall Street Online |
| WSOT | Wharton Society of Options Traders |
| WSSPA | Warrant Subscription and Share Purchase Agreement |
| WT | Warrant |
| WTFL | World Trade Finance Library |
| WTH | Castleworth Ventures, Inc. |
| WTH | Water Hall Group, PLC. |
| WTHS | Wing Tai Holdings, Ltd. |
| WTI | West Texas Intermediate (oil) |
| WTV | Westone Ventures, Inc. |
| WTXI | West Texas Intermediate oil |
| WUGG | Westag & Getalit, A. G. |
| WUN | Wellington Underwriting, P. L. C. |
| WUN | Wellington Underwriting, P.L.C. |
| WUNG | Wuensche, A. G. |
| WUQ | Aware, Inc. Options |