| UCB | United Community Banks Inc | 34.19 | 33.58 | 34.16 | 397.7K | 0.18 | | 0.53 | |
| UDR | United Dominion Realty Trust | 35.09 | 34.50 | 34.74 | 1.87M | -0.36 | | 1.03 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.200 | 5.960 | 6.080 | 2.85M | 0.060 | | 1.00 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 48.39 | 46.54 | 48.15 | 382.4K | 0.88 | | 1.86 | |
| UHS | Universal Health Services | 183.2 | 177.4 | 183.1 | 243.5K | 2.4 | | 1.34 | |
| UHT | Universal Health Realty Income Trust | 43.09 | 42.14 | 42.69 | 20.4K | -0.18 | | 0.42 | |
| UMC | United Microelectronics Corp ADR | 9.715 | 9.410 | 9.705 | 5.5M | -0.040 | | 0.41 | |
| USA | Liberty All-Star Equity Fund | 5.830 | 5.701 | 5.825 | 1.11M | 0.100 | | 1.75 | |
| USAC | USA Compression Partners LP | 28.16 | 27.07 | 27.49 | 134.3K | -0.04 | | 0.15 | |
| USNA | Usana Health Sciences Inc | 18.23 | 17.72 | 18.16 | 38.5K | 0.06 | | 0.33 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.94 | 26.52 | 26.71 | 506.9K | -0.06 | | 0.22 | |
| UTI | Universal Technical Institute Inc | 35.98 | 34.90 | 35.31 | 146.4K | -0.27 | | 0.76 | |
| UVE | Universal Insurance Holdings Inc | 34.96 | 34.00 | 34.88 | 94.4K | 0.53 | | 1.54 | |
| UZE | United States Cellular Corp | 17.97 | 17.97 | 17.97 | 100 | -0.02 | | 0.11 | |