| UCB | United Community Banks Inc | 33.66 | 33.12 | 33.18 | 194.8K | -0.33 | | 0.98 | |
| UDR | United Dominion Realty Trust | 36.84 | 36.18 | 36.37 | 1.45M | -0.03 | | 0.08 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.095 | 5.950 | 5.980 | 2.04M | 0.010 | | 0.17 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 47.92 | 46.36 | 46.82 | 357.5K | -1.29 | | 2.68 | |
| UHS | Universal Health Services | 167.8 | 163.1 | 166.0 | 648.9K | -0.9 | | 0.56 | |
| UHT | Universal Health Realty Income Trust | 40.75 | 39.68 | 39.86 | 35.4K | -0.70 | | 1.73 | |
| UMC | United Microelectronics Corp ADR | 13.37 | 12.82 | 12.97 | 7.43M | -0.08 | | 0.61 | |
| USA | Liberty All-Star Equity Fund | 5.879 | 5.760 | 5.760 | 1.04M | -0.080 | | 1.37 | |
| USAC | USA Compression Partners LP | 27.77 | 26.86 | 27.02 | 133.8K | -0.80 | | 2.88 | |
| USNA | Usana Health Sciences Inc | 19.44 | 18.30 | 18.61 | 36.1K | -0.79 | | 4.08 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.18 | 26.78 | 26.96 | 204.3K | -0.09 | | 0.33 | |
| UTI | Universal Technical Institute Inc | 37.79 | 36.23 | 37.07 | 309.2K | 0.18 | | 0.49 | |
| UVE | Universal Insurance Holdings Inc | 40.69 | 38.87 | 39.10 | 80.6K | -0.62 | | 1.56 | |
| UZD | United States Cellular Corp 6.250% | 20.30 | 20.09 | 20.09 | 1.5K | -0.16 | | 0.79 | |
| UZE | United States Cellular Corp | 18.20 | 18.05 | 18.20 | 3.7K | -0.04 | | 0.22 | |
| UZF | United States Cellular Corp 5.500% | 18.14 | 17.97 | 17.98 | 1.8K | -0.10 | | 0.55 | |