| UCB | United Community Banks Inc | 34.10 | 33.73 | 33.73 | 84.3K | -0.22 | | 0.63 | |
| UDR | United Dominion Realty Trust | 37.31 | 36.85 | 37.17 | 473.6K | 0.13 | | 0.34 | |
| UGP | Ultrapar Participacoes S.A. ADR | 6.190 | 5.890 | 5.990 | 1.83M | -0.020 | | 0.33 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 48.82 | 46.80 | 48.01 | 1.12M | 0.93 | | 1.98 | |
| UHS | Universal Health Services | 172.9 | 167.7 | 171.4 | 205.1K | 3.0 | | 1.76 | |
| UHT | Universal Health Realty Income Trust | 40.65 | 40.00 | 40.49 | 7.6K | 0.15 | | 0.37 | |
| UMC | United Microelectronics Corp ADR | 16.00 | 15.09 | 15.13 | 6.7M | -0.09 | | 0.59 | |
| USA | Liberty All-Star Equity Fund | 5.860 | 5.811 | 5.820 | 494.9K | -0.020 | | 0.34 | |
| USAC | USA Compression Partners LP | 27.47 | 26.39 | 27.38 | 56.3K | 0.35 | | 1.28 | |
| USNA | Usana Health Sciences Inc | 20.35 | 19.48 | 19.63 | 29.7K | -0.38 | | 1.90 | |
| UTF | Cohen & Steers Infrastructure Fund | 27.34 | 27.03 | 27.11 | 148.4K | -0.10 | | 0.35 | |
| UTI | Universal Technical Institute Inc | 35.89 | 31.42 | 33.73 | 331.5K | -3.25 | | 8.79 | |
| UVE | Universal Insurance Holdings Inc | 41.20 | 40.10 | 40.87 | 64.0K | 0.55 | | 1.35 | |
| UZD | United States Cellular Corp 6.250% | 20.11 | 19.93 | 19.93 | 3.8K | -0.18 | | 0.90 | |
| UZE | United States Cellular Corp | 18.29 | 17.83 | 18.29 | 3.1K | 0.19 | | 1.03 | |
| UZF | United States Cellular Corp 5.500% | 18.17 | 17.94 | 17.94 | 800 | -0.19 | | 1.02 | |