| Nom | Code | Valeur | Code ISIN |
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| UNIONE DI BANCHE ITALIANE SCPA | UBI-EUR | Action | IT0003487029 |
| UNIPOL GRUPPO FINANZIARIO SPA | UNI-EUR | Action | IT0001074571 |
| UNIQ PLC | UNIQ-GBX | Action | GB0030329253 |
| UNITED BUSINESS MEDIA PLC | UBM-GBX | Action | JE00B2R84W06 |
| UNITED BUSINESS MEDIA PLC2 | UBM2-GBX | Action | GB00B1TQY924 |
| UNITED DRUG PLC | UDG-GBX | Action | IE0033024807 |
| UNITED UTILITIES G ORD GBP0.05 | UU.0-GBX | Action | GB00B39J2M42 |
| UNITED UTILITIES GROUP PLC | UU.-GBX | Action | GB00B39J2M42 |
| UNITED UTILITIES GROUP PLC | UU.-GBX-OTC | Action | GB00B39J2M42 |
| UNITE GROUP PLC | UTG-GBX | Action | GB0006928617 |
| USG PEOPLE NV | USG-EUR | Action | NL0000354488 |
| USINOR SA | USI-EUR | Action | FR0000045130 |
| UTV MEDIA PLC | UTV-GBX | Action | GB00B244WQ16 |