| UCB | United Community Banks Inc | 33.77 | 33.05 | 33.15 | 785.5K | -0.49 | | 1.46 | |
| UDR | United Dominion Realty Trust | 36.49 | 35.92 | 36.16 | 4.17M | -0.05 | | 0.14 | |
| UGP | Ultrapar Participacoes S.A. ADR | 5.875 | 5.760 | 5.780 | 1.38M | -0.100 | | 1.70 | |
| UHA.B | U-Haul Holding Series N Non-Voting | 48.69 | 46.66 | 47.35 | 334.9K | -1.62 | | 3.31 | |
| UHS | Universal Health Services | 170.0 | 159.0 | 168.0 | 1.58M | 5.4 | | 3.34 | |
| UHT | Universal Health Realty Income Trust | 40.74 | 40.21 | 40.63 | 55.0K | -0.17 | | 0.42 | |
| UMC | United Microelectronics Corp ADR | 13.39 | 12.10 | 12.75 | 25.34M | 1.09 | | 9.35 | |
| USA | Liberty All-Star Equity Fund | 5.790 | 5.750 | 5.770 | 1.04M | -0.010 | | 0.17 | |
| USAC | USA Compression Partners LP | 27.31 | 26.81 | 27.19 | 114.9K | 0.01 | | 0.04 | |
| USNA | Usana Health Sciences Inc | 19.40 | 18.50 | 18.72 | 102.4K | -0.80 | | 4.10 | |
| UTF | Cohen & Steers Infrastructure Fund | 26.63 | 26.36 | 26.56 | 261.5K | 0.07 | | 0.26 | |
| UTI | Universal Technical Institute Inc | 36.85 | 35.36 | 36.08 | 411.4K | 0.54 | | 1.52 | |
| UVE | Universal Insurance Holdings Inc | 41.31 | 38.68 | 39.18 | 284.7K | -2.08 | | 5.04 | |
| UZD | United States Cellular Corp 6.250% | 20.20 | 19.85 | 19.87 | 5.5K | -0.20 | | 1.00 | |
| UZE | United States Cellular Corp | 17.97 | 17.82 | 17.96 | 3.0K | -0.06 | | 0.33 | |
| UZF | United States Cellular Corp 5.500% | 18.08 | 17.90 | 17.95 | 2.5K | -0.03 | | 0.17 | |