| UCB | United Community Banks Inc | 31.91 | 31.26 | 31.41 | 693.7K | 0.20 | | 0.64 | |
| UDR | United Dominion Realty Trust | 35.31 | 34.76 | 34.90 | 2.7M | 0.01 | | 0.03 | |
| UGP | Ultrapar Participacoes S.A. ADR | 3.940 | 3.830 | 3.920 | 1.23M | -0.020 | | 0.51 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 48.80 | 46.91 | 46.94 | 574.0K | -1.64 | | 3.38 | |
| UHS | Universal Health Services | 230.2 | 224.3 | 225.4 | 496.2K | -0.8 | | 0.34 | |
| UHT | Universal Health Realty Income Trust | 41.41 | 40.62 | 41.30 | 78.3K | 0.78 | | 1.92 | |
| UMC | United Microelectronics Corp ADR | 8.100 | 7.970 | 8.090 | 8.9M | 0.040 | | 0.50 | |
| USAC | USA Compression Partners LP | 24.67 | 24.15 | 24.20 | 104.9K | -0.01 | | 0.04 | |
| USNA | Usana Health Sciences Inc | 20.13 | 19.39 | 20.06 | 109.5K | 0.65 | | 3.35 | |
| UTF | Cohen & Steers Infrastructure Fund | 23.76 | 23.52 | 23.55 | 520.6K | -0.18 | | 0.76 | |
| UTI | Universal Technical Institute Inc | 25.15 | 24.37 | 24.46 | 731.8K | -0.09 | | 0.37 | |
| UVE | Universal Insurance Holdings Inc | 32.35 | 31.22 | 31.96 | 120.4K | 0.69 | | 2.21 | |
| UZD | United States Cellular Corp 6.250% | 20.53 | 20.25 | 20.25 | 10.3K | -0.06 | | 0.30 | |
| UZE | United States Cellular Corp | 18.06 | 17.86 | 18.06 | 18.3K | 0.20 | | 1.12 | |
| UZF | United States Cellular Corp 5.500% | 18.08 | 17.83 | 17.96 | 6.9K | 0.11 | | 0.62 | |