| UCB | United Community Banks Inc | 35.36 | 34.06 | 34.98 | 332.5K | 0.56 | | 1.63 | |
| UDR | United Dominion Realty Trust | 37.34 | 36.72 | 36.76 | 2.37M | -0.40 | | 1.08 | |
| UGP | Ultrapar Participacoes S.A. ADR | 4.855 | 4.790 | 4.840 | 1.28M | 0.060 | | 1.26 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 52.13 | 50.80 | 51.83 | 368.1K | 0.52 | | 1.01 | |
| UHS | Universal Health Services | 204.4 | 200.6 | 201.9 | 213.9K | 0.6 | | 0.30 | |
| UHT | Universal Health Realty Income Trust | 40.24 | 39.58 | 40.09 | 23.8K | 0.37 | | 0.93 | |
| UMC | United Microelectronics Corp ADR | 9.800 | 9.740 | 9.800 | 5.1K | -0.240 | | 2.39 | |
| USA | Liberty All-Star Equity Fund | 6.080 | 6.010 | 6.065 | 985.2K | 0.010 | | 0.17 | |
| USAC | USA Compression Partners LP | 25.93 | 25.08 | 25.27 | 136.5K | -0.59 | | 2.28 | |
| USNA | Usana Health Sciences Inc | 21.98 | 21.11 | 21.64 | 28.6K | -0.04 | | 0.18 | |
| UTF | Cohen & Steers Infrastructure Fund | 25.97 | 25.60 | 25.75 | 342.5K | -0.10 | | 0.39 | |
| UTI | Universal Technical Institute Inc | 29.32 | 26.85 | 28.98 | 175.7K | 1.16 | | 4.17 | |
| UVE | Universal Insurance Holdings Inc | 31.65 | 30.60 | 31.15 | 92.3K | 0.71 | | 2.33 | |
| UZD | United States Cellular Corp 6.250% | 20.70 | 20.62 | 20.70 | 774 | -0.14 | | 0.67 | |
| UZE | United States Cellular Corp | 18.38 | 18.29 | 18.30 | 5.2K | 0.06 | | 0.33 | |
| UZF | United States Cellular Corp 5.500% | 18.41 | 18.30 | 18.32 | 1.0K | 0.04 | | 0.22 | |