| UCB | United Community Banks Inc | 37.09 | 36.17 | 36.44 | 517.9K | -0.64 | | 1.73 | |
| UDR | United Dominion Realty Trust | 40.82 | 39.44 | 39.76 | 1.97M | -0.81 | | 2.00 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.280 | 6.150 | 6.250 | 5.06M | 0.010 | | 0.16 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 63.97 | 62.29 | 62.29 | 365.8K | -1.03 | | 1.63 | |
| UHS | Universal Health Services | 155.7 | 151.0 | 151.2 | 205.6K | -2.4 | | 1.55 | |
| UHT | Universal Health Realty Income Trust | 44.80 | 43.36 | 43.88 | 38.4K | 0.04 | | 0.09 | |
| UMC | United Microelectronics Corp ADR | 21.74 | 20.16 | 21.26 | 14.03M | -1.04 | | 4.67 | |
| USA | Liberty All-Star Equity Fund | 5.800 | 5.735 | 5.735 | 1.75M | -0.050 | | 0.86 | |
| USAC | USA Compression Partners LP | 27.09 | 26.02 | 26.06 | 104.7K | -0.82 | | 3.05 | |
| USNA | Usana Health Sciences Inc | 22.78 | 21.60 | 21.77 | 60.2K | -0.83 | | 3.66 | |
| UTF | Cohen & Steers Infrastructure Fund | 28.11 | 27.66 | 27.75 | 224.1K | -0.04 | | 0.14 | |
| UTI | Universal Technical Institute Inc | 40.78 | 38.02 | 40.29 | 471.5K | -0.26 | | 0.64 | |
| UVE | Universal Insurance Holdings Inc | 39.16 | 38.08 | 38.88 | 82.0K | 0.69 | | 1.81 | |
| UZD | United States Cellular Corp 6.250% | 19.15 | 18.85 | 19.15 | 3.1K | -0.02 | | 0.10 | |
| UZE | United States Cellular Corp | 16.99 | 16.64 | 16.93 | 10.7K | 0.06 | | 0.36 | |
| UZF | United States Cellular Corp 5.500% | 16.77 | 16.49 | 16.70 | 15.6K | 0.02 | | 0.12 | |