| UCB | United Community Banks Inc | 34.97 | 33.77 | 33.86 | 542.4K | -1.24 | | 3.53 | |
| UDR | United Dominion Realty Trust | 37.77 | 37.30 | 37.72 | 4.62M | 0.17 | | 0.45 | |
| UGP | Ultrapar Participacoes S.A. ADR | 4.685 | 4.520 | 4.625 | 2.18M | 0.100 | | 2.21 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 53.82 | 53.01 | 53.17 | 231.8K | -0.68 | | 1.26 | |
| UHS | Universal Health Services | 207.5 | 203.7 | 205.0 | 213.4K | -0.6 | | 0.30 | |
| UHT | Universal Health Realty Income Trust | 39.69 | 38.76 | 39.00 | 18.6K | -0.38 | | 0.97 | |
| UMC | United Microelectronics Corp ADR | 10.56 | 10.23 | 10.54 | 10.24M | -0.36 | | 3.30 | |
| USA | Liberty All-Star Equity Fund | 6.168 | 6.110 | 6.110 | 937.7K | -0.050 | | 0.81 | |
| USAC | USA Compression Partners LP | 25.56 | 25.14 | 25.14 | 199.8K | -0.03 | | 0.12 | |
| USNA | Usana Health Sciences Inc | 22.55 | 21.98 | 22.51 | 55.1K | 0.02 | | 0.09 | |
| UTF | Cohen & Steers Infrastructure Fund | 25.22 | 25.06 | 25.20 | 257.2K | 0.19 | | 0.76 | |
| UTI | Universal Technical Institute Inc | 28.93 | 27.83 | 28.31 | 264.2K | -0.57 | | 1.97 | |
| UVE | Universal Insurance Holdings Inc | 29.33 | 28.32 | 28.81 | 100.5K | -0.50 | | 1.70 | |
| UZD | United States Cellular Corp 6.250% | 21.11 | 20.92 | 21.11 | 1.3K | 0.20 | | 0.96 | |
| UZE | United States Cellular Corp | 18.66 | 18.39 | 18.50 | 2.4K | -0.02 | | 0.11 | |
| UZF | United States Cellular Corp 5.500% | 18.82 | 18.30 | 18.64 | 4.6K | -0.26 | | 1.38 | |