| UCB | United Community Banks Inc | 36.25 | 35.52 | 35.88 | 846.4K | 0.51 | | 1.44 | |
| UDR | United Dominion Realty Trust | 37.94 | 36.68 | 37.61 | 5.15M | 0.98 | | 2.68 | |
| UGP | Ultrapar Participacoes S.A. ADR | 4.975 | 4.840 | 4.920 | 2.63M | -0.040 | | 0.81 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 54.07 | 52.03 | 53.26 | 539.5K | 1.10 | | 2.11 | |
| UHS | Universal Health Services | 211.1 | 205.9 | 206.5 | 701.3K | -0.5 | | 0.25 | |
| UHT | Universal Health Realty Income Trust | 41.74 | 40.54 | 41.20 | 121.7K | 0.87 | | 2.16 | |
| UMC | United Microelectronics Corp ADR | 10.119 | 9.775 | 9.950 | 14.19M | 0.100 | | 1.02 | |
| USA | Liberty All-Star Equity Fund | 6.020 | 5.960 | 6.020 | 1.36M | 0.020 | | 0.33 | |
| USAC | USA Compression Partners LP | 25.89 | 25.13 | 25.81 | 130.4K | 0.28 | | 1.10 | |
| USNA | Usana Health Sciences Inc | 21.03 | 20.49 | 20.90 | 93.1K | 0.46 | | 2.25 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.27 | 25.96 | 26.03 | 409.6K | 0.10 | | 0.39 | |
| UTI | Universal Technical Institute Inc | 28.64 | 27.84 | 27.86 | 640.6K | -0.65 | | 2.28 | |
| UVE | Universal Insurance Holdings Inc | 31.63 | 31.02 | 31.24 | 116.8K | 0.01 | | 0.03 | |
| UZD | United States Cellular Corp 6.250% | 20.92 | 20.43 | 20.92 | 6.0K | 0.13 | | 0.63 | |
| UZE | United States Cellular Corp | 18.46 | 18.26 | 18.31 | 6.4K | -0.10 | | 0.54 | |
| UZF | United States Cellular Corp 5.500% | 18.38 | 18.22 | 18.33 | 4.3K | 0.05 | | 0.27 | |