| UCB | United Community Banks Inc | 31.41 | 30.93 | 31.35 | 156.4K | 0.13 | | 0.42 | |
| UDR | United Dominion Realty Trust | 34.33 | 33.87 | 34.07 | 865.0K | 0.14 | | 0.41 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.485 | 5.350 | 5.405 | 2.44M | 0.005 | | 0.09 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 43.22 | 42.08 | 42.86 | 392.2K | 1.07 | | 2.56 | |
| UHS | Universal Health Services | 188.4 | 185.1 | 186.9 | 80.5K | 0.1 | | 0.08 | |
| UHT | Universal Health Realty Income Trust | 40.68 | 39.81 | 40.28 | 16.8K | 0.28 | | 0.70 | |
| UMC | United Microelectronics Corp ADR | 9.200 | 8.890 | 9.120 | 3.17M | -0.170 | | 1.83 | |
| USA | Liberty All-Star Equity Fund | 5.660 | 5.560 | 5.590 | 789.5K | -0.030 | | 0.53 | |
| USAC | USA Compression Partners LP | 28.77 | 27.82 | 28.49 | 181.1K | 0.24 | | 0.85 | |
| USNA | Usana Health Sciences Inc | 17.90 | 16.87 | 17.05 | 38.9K | -0.19 | | 1.10 | |
| UTF | Cohen & Steers Infrastructure Fund | 25.92 | 25.53 | 25.55 | 229.4K | -0.19 | | 0.74 | |
| UTI | Universal Technical Institute Inc | 40.00 | 38.53 | 38.53 | 158.8K | -1.14 | | 2.87 | |
| UVE | Universal Insurance Holdings Inc | 34.60 | 33.84 | 34.14 | 41.7K | -0.05 | | 0.15 | |
| UZD | United States Cellular Corp 6.250% | 20.42 | 19.51 | 19.51 | 9.2K | -0.87 | | 4.27 | |
| UZE | United States Cellular Corp | 17.81 | 17.59 | 17.60 | 4.5K | -0.30 | | 1.68 | |
| UZF | United States Cellular Corp 5.500% | 17.87 | 17.51 | 17.71 | 24.3K | -0.43 | | 2.35 | |