| UCB | United Community Banks Inc | 35.91 | 35.28 | 35.57 | 283.3K | 0.05 | | 0.14 | |
| UDR | United Dominion Realty Trust | 37.93 | 37.54 | 37.77 | 1.89M | 0.08 | | 0.21 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.795 | 6.560 | 6.740 | 1.33M | 0.190 | | 2.90 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 64.38 | 62.86 | 63.05 | 273.3K | -0.23 | | 0.36 | |
| UHS | Universal Health Services | 177.7 | 172.3 | 177.3 | 243.9K | 4.4 | | 2.54 | |
| UHT | Universal Health Realty Income Trust | 41.42 | 40.95 | 41.24 | 50.8K | -0.06 | | 0.15 | |
| UMC | United Microelectronics Corp ADR | 18.66 | 18.18 | 18.34 | 4.29M | 0.34 | | 1.89 | |
| USA | Liberty All-Star Equity Fund | 6.000 | 5.950 | 5.980 | 1.02M | 0.070 | | 1.18 | |
| USAC | USA Compression Partners LP | 26.61 | 26.06 | 26.58 | 84.4K | 0.19 | | 0.72 | |
| USNA | Usana Health Sciences Inc | 13.56 | 13.05 | 13.55 | 74.0K | 0.37 | | 2.81 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.33 | 27.01 | 27.02 | 140.0K | -0.08 | | 0.30 | |
| UTI | Universal Technical Institute Inc | 23.39 | 22.18 | 22.36 | 1.29M | -0.57 | | 2.49 | |
| UVE | Universal Insurance Holdings Inc | 43.23 | 42.19 | 42.37 | 72.2K | -0.01 | | 0.02 | |
| UZD | United States Cellular Corp 6.250% | 19.20 | 19.06 | 19.15 | 5.0K | -0.05 | | 0.26 | |
| UZE | United States Cellular Corp | 16.87 | 16.65 | 16.79 | 25.3K | -0.02 | | 0.10 | |
| UZF | United States Cellular Corp 5.500% | 16.99 | 16.82 | 16.86 | 2.1K | -0.11 | | 0.62 | |