| UCB | United Community Banks Inc | 30.08 | 29.51 | 29.71 | 326.8K | -0.24 | | 0.80 | |
| UDR | United Dominion Realty Trust | 35.68 | 35.10 | 35.36 | 2.14M | -0.46 | | 1.27 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.120 | 5.000 | 5.015 | 3.28M | -0.035 | | 0.69 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 43.73 | 42.58 | 42.60 | 457.8K | 0.19 | | 0.45 | |
| UHS | Universal Health Services | 195.7 | 187.0 | 189.7 | 374.5K | -3.8 | | 1.96 | |
| UHT | Universal Health Realty Income Trust | 44.09 | 43.00 | 43.16 | 23.4K | -0.42 | | 0.96 | |
| UMC | United Microelectronics Corp ADR | 9.650 | 9.290 | 9.290 | 4.03M | -0.230 | | 2.42 | |
| USA | Liberty All-Star Equity Fund | 5.720 | 5.640 | 5.641 | 587.4K | -0.079 | | 1.38 | |
| USAC | USA Compression Partners LP | 28.35 | 27.80 | 28.25 | 103.0K | -0.16 | | 0.56 | |
| USNA | Usana Health Sciences Inc | 17.52 | 16.96 | 17.10 | 66.0K | -0.57 | | 3.20 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.50 | 25.95 | 25.95 | 213.1K | -0.22 | | 0.84 | |
| UTI | Universal Technical Institute Inc | 37.80 | 35.97 | 35.98 | 203.8K | -1.45 | | 3.87 | |
| UVE | Universal Insurance Holdings Inc | 34.02 | 33.15 | 33.34 | 83.8K | -0.70 | | 2.06 | |
| UZD | United States Cellular Corp 6.250% | 20.35 | 20.27 | 20.31 | 6.0K | -0.04 | | 0.19 | |
| UZE | United States Cellular Corp | 18.12 | 18.02 | 18.05 | 12.5K | -0.06 | | 0.33 | |
| UZF | United States Cellular Corp 5.500% | 18.19 | 17.91 | 18.00 | 12.3K | -0.17 | | 0.94 | |