| UCB | United Community Banks Inc | 29.76 | 29.51 | 29.70 | 31.3K | -0.01 | | 0.03 | |
| UDR | United Dominion Realty Trust | 35.58 | 35.07 | 35.22 | 87.6K | -0.14 | | 0.40 | |
| UGP | Ultrapar Participacoes S.A. ADR | 4.985 | 4.820 | 4.935 | 238.8K | -0.080 | | 1.60 | |
| 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 | 189.2 | 187.7 | 188.7 | 14.8K | -0.9 | | 0.50 | |
| UHT | Universal Health Realty Income Trust | 43.55 | 42.96 | 42.96 | 673 | -0.20 | | 0.46 | |
| UMC | United Microelectronics Corp ADR | 9.260 | 8.990 | 9.085 | 489.3K | -0.205 | | 2.21 | |
| USA | Liberty All-Star Equity Fund | 5.640 | 5.580 | 5.591 | 131.1K | -0.050 | | 0.88 | |
| USAC | USA Compression Partners LP | 28.23 | 28.12 | 28.12 | 3.2K | -0.14 | | 0.48 | |
| USNA | Usana Health Sciences Inc | 17.26 | 16.91 | 17.26 | 4.5K | 0.17 | | 0.97 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.00 | 25.80 | 25.88 | 25.5K | -0.07 | | 0.27 | |
| UTI | Universal Technical Institute Inc | 36.80 | 35.42 | 36.80 | 13.7K | 0.82 | | 2.28 | |
| UVE | Universal Insurance Holdings Inc | 33.79 | 33.12 | 33.48 | 6.4K | 0.14 | | 0.40 | |
| UZD | United States Cellular Corp 6.250% | 20.35 | 20.27 | 20.31 | 6.0K | -0.04 | | 0.19 | |
| UZE | United States Cellular Corp | 18.04 | 18.04 | 18.04 | 100 | -0.01 | | 0.06 | |
| UZF | United States Cellular Corp 5.500% | 18.02 | 17.92 | 18.02 | 854 | 0.02 | | 0.11 | |