| Abbreviation | Definition |
|---|---|
| WMS | W M S Industries, Inc. |
| WMT | Wal Mart Stores, Inc. |
| WMX | W M X Technologies, Inc. |
| WN | Wynns International, Inc. |
| WNC | Wabash National Corporation |
| WND | Windmere- Durable Holdings, Inc. |
| WNH | Western National Corporation |
| WNI | Weider Nutrition International, Inc. |
| WNT | Washington National Corporation |
| WOC | Wilshire Oil Company of Texas |
| WON | Westwood One, Inc. |
| WOR | Worthington Industries, Inc. |
| WOS | Wolseley PLC, American Depositary Receipts |
| WPC | W. P. Carey & Company, L. L. C. |
| WPI | Watson Pharmaceuticals, Inc. |
| WPK | W B K Strypes Trust |
| WPL | W. P. Stewart & Company, Ltd. |
| WPO | Washington Post Company |
| WPS | W P S Resources Corporation |
| WPSPA | W P S Resources Corporation Capital Trust I |