| UDR | United Dominion Realty Trust | 36.05 | 35.21 | 35.46 | 2.42M | -0.33 | | 0.92 | |
| UGP | Ultrapar Participacoes S.A. ADR | 3.920 | 3.725 | 3.730 | 1.64M | -0.270 | | 6.75 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 49.12 | 48.11 | 48.48 | 410.1K | -0.31 | | 0.64 | |
| UHS | Universal Health Services | 225.2 | 221.6 | 222.6 | 945.1K | -1.2 | | 0.55 | |
| UHT | Universal Health Realty Income Trust | 42.54 | 41.18 | 41.76 | 93.1K | -0.46 | | 1.09 | |
| UMC | United Microelectronics Corp ADR | 8.000 | 8.000 | 8.000 | 335 | 0.110 | | 1.39 | |
| USA | Liberty All-Star Equity Fund | 6.200 | 6.140 | 6.170 | 955.8K | -0.050 | | 0.80 | |
| USAC | USA Compression Partners LP | 24.09 | 23.18 | 23.51 | 283.8K | -0.38 | | 1.59 | |
| USNA | Usana Health Sciences Inc | 20.64 | 20.12 | 20.33 | 106.4K | 0.01 | | 0.05 | |
| UTF | Cohen & Steers Infrastructure Fund | 23.99 | 23.77 | 23.86 | 354.1K | -0.12 | | 0.50 | |
| UTI | Universal Technical Institute Inc | 26.81 | 25.79 | 25.91 | 1.01M | -0.15 | | 0.58 | |
| UVE | Universal Insurance Holdings Inc | 33.36 | 32.50 | 33.19 | 114.9K | 0.32 | | 0.97 | |
| UWM.W | Uwm Hldg Corp WT [Uwmc/W] | 0.0300 | 0.0075 | 0.0143 | 913.0K | 0.0047 | | 48.96 | |
| UZD | United States Cellular Corp 6.250% | 20.25 | 19.74 | 20.22 | 19.2K | -0.11 | | 0.54 | |
| UZE | United States Cellular Corp | 17.98 | 17.79 | 17.98 | 3.2K | -0.11 | | 0.61 | |
| UZF | United States Cellular Corp 5.500% | 17.94 | 17.57 | 17.94 | 28.4K | 0.22 | | 1.24 | |