| UCB | United Community Banks Inc | 36.77 | 36.29 | 36.52 | 479.0K | 0.44 | | 1.22 | |
| UDR | United Dominion Realty Trust | 37.78 | 36.42 | 37.56 | 2.94M | 0.42 | | 1.13 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.100 | 4.980 | 5.100 | 1.86M | 0.170 | | 3.45 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 46.94 | 45.41 | 45.67 | 916.4K | 0.15 | | 0.33 | |
| UHS | Universal Health Services | 220.4 | 216.8 | 218.5 | 275.8K | 2.1 | | 0.97 | |
| UHT | Universal Health Realty Income Trust | 43.10 | 41.88 | 42.18 | 36.6K | -0.60 | | 1.41 | |
| UMC | United Microelectronics Corp ADR | 10.27 | 9.79 | 10.06 | 9.94M | 0.09 | | 0.85 | |
| USA | Liberty All-Star Equity Fund | 6.050 | 5.930 | 6.045 | 1.09M | 0.110 | | 1.85 | |
| USAC | USA Compression Partners LP | 26.49 | 26.09 | 26.35 | 156.0K | 0.20 | | 0.76 | |
| USNA | Usana Health Sciences Inc | 21.41 | 20.72 | 21.35 | 28.6K | 0.53 | | 2.55 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.24 | 25.85 | 26.02 | 324.4K | 0.01 | | 0.04 | |
| UTI | Universal Technical Institute Inc | 26.30 | 24.69 | 25.52 | 424.5K | 0.77 | | 3.11 | |
| UVE | Universal Insurance Holdings Inc | 32.42 | 31.62 | 31.72 | 54.4K | 0.07 | | 0.22 | |
| UZD | United States Cellular Corp 6.250% | 20.81 | 20.61 | 20.65 | 1.5K | 0.08 | | 0.39 | |
| UZE | United States Cellular Corp | 18.37 | 18.20 | 18.20 | 5.5K | 0.07 | | 0.38 | |
| UZF | United States Cellular Corp 5.500% | 18.50 | 18.20 | 18.28 | 4.2K | -0.08 | | 0.44 | |