| Abbreviation | Definition |
|---|---|
| UBSUY | Union Bank of Switzerland |
| UBTR | UBarter.Com, Inc. |
| UBTR | UBarter.Com, Incorporated (de-listed) |
| UBTR | UBarter.Com, Incorporated (de-listed) |
| UBUYE | AuctionAnything.Com, Inc. |
| UBUYE | AuctionAnything.Com, Incorporated (de-listed) |
| UBUYE | AuctionAnything.Com, Incorporated (de-listed) |
| UCBC | Union Community Bancorp |
| UCBH | U C B H Holdings, Inc. |
| UCFC | United Community Financial Corporation |
| UCFNQ | United Companies Financial Corporation |
| UCFPE | United Companies Financial Corporation 6.75 Preferred |
| UCFPE | United Companies Financial Corporation 6.75 Preferred E (de-listed) |
| UCFPE | United Companies Financial Corporation 6.75 Preferred E (de-listed) |
| UCIA | U C I Medical Affiliates, Inc. |
| UCMP | Unicomp, Inc. |
| UCNO | United Casino Corporation |
| UCOMA | United GlobalCom, Inc. Class A |
| UCOMA | United GlobalCom, Incorporated Class A (de-listed) |
| UCOMA | United GlobalCom, Incorporated Class A (de-listed) |