| UCB | United Community Banks Inc | 33.59 | 32.41 | 33.27 | 365.4K | 0.74 | | 2.27 | |
| UDR | United Dominion Realty Trust | 37.52 | 36.52 | 37.31 | 1.81M | 0.49 | | 1.33 | |
| UGP | Ultrapar Participacoes S.A. ADR | 3.880 | 3.825 | 3.870 | 1.17M | 0.040 | | 1.04 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 50.42 | 48.59 | 50.36 | 282.7K | -0.25 | | 0.51 | |
| UHS | Universal Health Services | 214.5 | 207.3 | 211.1 | 468.7K | 2.7 | | 1.31 | |
| UMC | United Microelectronics Corp ADR | 8.720 | 8.350 | 8.520 | 8.89M | -0.420 | | 4.70 | |
| USA | Liberty All-Star Equity Fund | 6.399 | 6.300 | 6.330 | 956.6K | 0.010 | | 0.16 | |
| USAC | USA Compression Partners LP | 24.74 | 23.95 | 24.70 | 111.0K | 0.75 | | 3.13 | |
| USNA | Usana Health Sciences Inc | 20.24 | 19.21 | 20.02 | 52.6K | 0.45 | | 2.30 | |
| UTF | Cohen & Steers Infrastructure Fund | 24.24 | 24.00 | 24.23 | 375.2K | 0.30 | | 1.25 | |
| UTI | Universal Technical Institute Inc | 27.99 | 27.22 | 27.98 | 216.5K | 0.65 | | 2.38 | |
| UVE | Universal Insurance Holdings Inc | 31.93 | 30.59 | 31.43 | 65.1K | 0.41 | | 1.32 | |
| UWM.W | Uwm Hldg Corp WT [Uwmc/W] | 0.0086 | 0.0052 | 0.0061 | 465.7K | -0.0042 | | 40.78 | |
| UZD | United States Cellular Corp 6.250% | 20.49 | 20.43 | 20.49 | 818 | 0.03 | | 0.15 | |
| UZE | United States Cellular Corp | 18.22 | 17.85 | 17.98 | 3.2K | 0.06 | | 0.33 | |
| UZF | United States Cellular Corp 5.500% | 18.19 | 17.75 | 18.03 | 9.0K | -0.05 | | 0.28 | |