| UCB | United Community Banks Inc | 33.08 | 32.71 | 32.85 | 518.2K | 0.29 | | 0.88 | |
| UDR | United Dominion Realty Trust | 38.19 | 37.39 | 37.56 | 3.34M | -0.09 | | 0.24 | |
| UGP | Ultrapar Participacoes S.A. ADR | 4.815 | 4.570 | 4.800 | 3.91M | 0.100 | | 2.13 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 55.71 | 53.73 | 54.05 | 448.8K | -1.01 | | 1.83 | |
| UHS | Universal Health Services | 142.4 | 140.3 | 141.1 | 678.5K | -0.2 | | 0.11 | |
| UHT | Universal Health Realty Income Trust | 38.99 | 37.77 | 37.86 | 316.4K | -0.91 | | 2.35 | |
| UMC | United Microelectronics Corp ADR | 24.17 | 22.19 | 24.09 | 14.29M | 2.33 | | 10.71 | |
| USA | Liberty All-Star Equity Fund | 5.810 | 5.760 | 5.785 | 1.12M | 0.035 | | 0.61 | |
| USAC | USA Compression Partners LP | 25.66 | 24.82 | 25.10 | 332.4K | -0.43 | | 1.68 | |
| USNA | Usana Health Sciences Inc | 19.34 | 18.55 | 18.92 | 64.9K | 0.52 | | 2.80 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.43 | 26.95 | 26.95 | 211.6K | -0.15 | | 0.55 | |
| UTI | Universal Technical Institute Inc | 40.36 | 37.93 | 40.32 | 508.2K | 1.57 | | 4.05 | |
| UVE | Universal Insurance Holdings Inc | 38.40 | 37.44 | 38.04 | 75.3K | 0.21 | | 0.56 | |
| UZD | United States Cellular Corp 6.250% | 18.80 | 18.62 | 18.80 | 892 | 0.08 | | 0.43 | |
| UZE | United States Cellular Corp | 17.08 | 16.91 | 17.00 | 1.1K | 0.14 | | 0.83 | |
| UZF | United States Cellular Corp 5.500% | 17.00 | 16.76 | 16.87 | 10.5K | 0.12 | | 0.74 | |