| UCB | United Community Banks Inc | 32.60 | 32.03 | 32.28 | 226.2K | -0.25 | | 0.77 | |
| UDR | United Dominion Realty Trust | 36.55 | 36.23 | 36.51 | 974.7K | 0.08 | | 0.22 | |
| UGP | Ultrapar Participacoes S.A. ADR | 3.750 | 3.710 | 3.740 | 955.6K | 0.010 | | 0.27 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 47.81 | 47.20 | 47.64 | 256.9K | 0.08 | | 0.17 | |
| UHS | Universal Health Services | 227.8 | 226.4 | 227.6 | 104.2K | 0.6 | | 0.25 | |
| UHT | Universal Health Realty Income Trust | 39.64 | 39.01 | 39.26 | 25.4K | -0.32 | | 0.81 | |
| UMC | United Microelectronics Corp ADR | 8.060 | 7.990 | 8.020 | 2.5M | 0.020 | | 0.25 | |
| USA | Liberty All-Star Equity Fund | 6.340 | 6.290 | 6.340 | 1.01M | 0.030 | | 0.47 | |
| USAC | USA Compression Partners LP | 23.45 | 22.91 | 22.93 | 140.8K | -0.21 | | 0.91 | |
| USNA | Usana Health Sciences Inc | 20.00 | 19.60 | 19.86 | 42.8K | -0.16 | | 0.80 | |
| UTF | Cohen & Steers Infrastructure Fund | 24.29 | 24.10 | 24.18 | 403.4K | -0.06 | | 0.25 | |
| UTI | Universal Technical Institute Inc | 27.35 | 26.70 | 27.31 | 238.1K | 0.04 | | 0.15 | |
| UVE | Universal Insurance Holdings Inc | 34.53 | 33.65 | 33.81 | 55.1K | -0.71 | | 2.06 | |
| 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% | 19.95 | 19.70 | 19.86 | 7.1K | -0.30 | | 1.50 | |
| UZE | United States Cellular Corp | 17.95 | 17.75 | 17.87 | 1.9K | -0.25 | | 1.39 | |
| UZF | United States Cellular Corp 5.500% | 17.75 | 17.58 | 17.58 | 14.1K | -0.13 | | 0.73 | |