| UCB | United Community Banks Inc | 32.67 | 31.84 | 32.06 | 704.0K | -0.60 | | 1.84 | |
| UDR | United Dominion Realty Trust | 37.51 | 36.82 | 36.92 | 4.62M | -0.42 | | 1.12 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.760 | 5.615 | 5.730 | 3.64M | -0.190 | | 3.21 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 46.17 | 44.74 | 44.86 | 345.2K | -0.85 | | 1.86 | |
| UHS | Universal Health Services | 172.7 | 167.5 | 168.6 | 541.9K | -2.0 | | 1.19 | |
| UHT | Universal Health Realty Income Trust | 40.75 | 40.00 | 40.27 | 29.8K | -0.50 | | 1.23 | |
| UMC | United Microelectronics Corp ADR | 17.43 | 16.84 | 17.17 | 11.43M | 0.07 | | 0.41 | |
| USA | Liberty All-Star Equity Fund | 5.750 | 5.710 | 5.710 | 654.8K | -0.030 | | 0.52 | |
| USAC | USA Compression Partners LP | 29.94 | 29.24 | 29.67 | 97.5K | 0.16 | | 0.54 | |
| USNA | Usana Health Sciences Inc | 18.34 | 17.71 | 17.98 | 175.0K | 0.02 | | 0.11 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.01 | 26.75 | 26.82 | 201.4K | -0.23 | | 0.85 | |
| UTI | Universal Technical Institute Inc | 41.40 | 39.30 | 39.54 | 557.4K | -1.94 | | 4.67 | |
| UVE | Universal Insurance Holdings Inc | 39.81 | 38.29 | 38.75 | 83.5K | -0.28 | | 0.72 | |
| UZD | United States Cellular Corp 6.250% | 20.00 | 19.81 | 19.82 | 2.9K | -0.20 | | 1.00 | |
| UZE | United States Cellular Corp | 18.04 | 18.02 | 18.04 | 200 | -0.12 | | 0.66 | |
| UZF | United States Cellular Corp 5.500% | 17.98 | 17.80 | 17.80 | 1.8K | -0.09 | | 0.50 | |